MediaWiki

Change notes from older releases. For current info, see RELEASE-NOTES-1.37.

= MediaWiki 1.36 =

== MediaWiki 1.36.1 ==

This is a security and maintenance release of the MediaWiki 1.36 branch.

=== Changes since MediaWiki 1.36.0 ===

• (T283942) DatabaseInstaller.php: Only run core schema file if specified table doesn't already exist.
• (T247223) Optimise MessageCache::isMainCacheable() for the single-message case.
• (T283244) JavaScriptMinifer: Fix handling of "delete" as object property.
• (T284391) Fix SkinModule to correctly prepend remote path on document root installs.
• (T235554) Disable DEFER_SET_LENGTH_AND_FLUSH headers to avoid HTTP errors.
• (T278579) Don't send headers on ob_end_clean().
• (T285287) MultiHttpClient: Replace PHP version check with defined().
• (T280226, CVE-2021-35197) SECURITY: Prevent blocked users from purging pages.

== MediaWiki 1.36.0 ==

=== Changes since MediaWiki 1.36.0-rc.0 ===

• (T248481) rdbms: Use server time in DatabaseMysqlBase::getLagFromPtHeartbeat().
• (T281549) WebInstaller: Don't show the announce-l subscribe checkbox for now.
• (T264214) Follow-ups for UserGroupManager.
• (T282280) resourceloader: Fix path-only URLs in wiki modules when script path is docroot.
• (T281972) UserIdentityValue: Introduce convenience static factory methods.
• (T230428) Make page_is_redirect and page_is_new unsigned.
• (T280292) Legacy feature should not load thumbnail style rules (only layout).
• (T283247) Freenode -> Libera per wikimedia moving from freenode to libera.
• (T280270) composer: Lock Parsoid version to specific 0.13.0 release.
• (T142663) Add extension.json merge strategy "provide_default".
• (T283540) HookContainer: Fix normalization of callback for static handler.
• (T283464) registration: Fix array order for array_replace_recursive merge strategy.
• (T283539) Interwiki: Fix calling "onInterwikiLoadPrefix" hook.
• (T282594) Timeless: Re-branch to 40eb3dad1for REL1_36.

== MediaWiki 1.36.0-rc.0 ==

== Upgrading notes for 1.36 == Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed per-version upgrade instructions from the oldest supported upgrading version, MediaWiki 1.27.

Some specific notes for MediaWiki 1.36 upgrades are below:

• MediaWiki 1.36 now requires the PHP internationalization extension (commonly referred to as Intl, ext-intl, or php-intl).
• The MediaWiki:Autoblock_whitelist block exemption control has been moved to MediaWiki:Block-autoblock-exemptionlist. If you use this feature, please move the MediaWiki:Autoblock_whitelist page.
• (T275334) $wgExtensionFunctions is sometimes used to change configuration settings. This is not safe; extension functions are run relatively late, some services are already initialized by that point and so they use the old configuration. Changes in 1.36 make this kind of breakage even more common. You can use the MediaWikiServices hook instead. (In the future there might be a dedicated hook for configuration changes.)

For notes on 1.35.x and older releases, see HISTORY.

=== Configuration changes for system administrators in 1.36 === The MediaWiki update script, maintenance/update.php, used to accept --nopurge as an option to prevent clearing caches stored in the database during upgrade. This is no longer encouraged, and the option has been removed.

==== New configuration ====

• (T256001) $wgManualRevertSearchRadius – This setting controls a new feature that marks edits as reverts if they restore the page to an exact previous state. This configuration variable sets the maximum number of revisions of a page that will be checked against every new edit. Set this to 0 to disable the feature entirely.
• (T244058) $wgOldRevisionParserCacheExpireTime — This setting was added to control caching of ParserOutput for old (non-current) revisions.
• (T265263) $wgRememberMe - This setting configures the "remember me" checkbox on account log-in systems via RememberMeAuthenticationRequest.
• (T157145) $wgSkinMetaTags – This setting lets sysadmins configure skins that support meta tags. These tags make sharing of MediaWiki pages on a variety of social platforms more contentful and thus useful.
• (T280944) $wgIncludejQueryMigrate - This setting lets sysadmins disable the jQuery Migrate plugin. It has been enabled by default since MediaWiki 1.27. In future releases it will be disabled by default.

==== Changed configuration ====

• $wgLogos – This setting selects the logo shown on the site. The default value for the site logo, which is shown in an install if you have not set one, will now be the new logo of MediaWiki.
• (T274695) $wgAjaxEditStash — This setting, to disable the edit stashing feature when users start writing an edit summary, has been deprecated. In future releases, this feature will always be enabled.
• $wgUploadStashScalerBaseUrl – This setting, to enable remote on-demand media scaling, was deprecated. Use the thumbProxyUrl setting in $wgLocalFileRepo instead.
• $wgSlaveLagWarning and $wgSlaveLagCritical – These settings have been renamed, to $wgDatabaseReplicaLagWarning & $wgDatabaseReplicaLagCritical respectively. The former configuration variable names are deprecated, but will be used as the fall back if they are still set, and remain temporarily available for extensions which try to read them.
• $wgWANObjectCaches - The "coalesceKeys" option was removed without deprecation and replaced by a new "coalesceScheme" option, set to "hash_stop" by default. If you use Dynomite, then set the new "coalesceKeys" option to "hash_tag". The "cluster" and "mcrouterAware" options were also removed without deprecation. Use "broadcastRoutingPrefix" instead.

==== Removed configuration ====

• $wgUseTwoButtonsSearchForm — This setting, deprecated in 1.35, has been removed.
• $wgAllowImageMoving — This setting, deprecated in 1.35, has been removed. Use group permission settings instead. For example, to prevent sysops from moving files, set $wgGroupPermissions['sysop']['movefile'] = false;
• $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtModifiedFields — These settings were removed. They became obsolete after 1.17 overhauled the database updater, but were kept for backwards compatibility. The LoadExtensionSchemaUpdates hook should be used instead.
• $wgParserConf - This setting, deprecated in 1.35, has been removed. The last use of this setting was for pre-processor configuration, which was deprecated in 1.34 and removed in 1.35.
• $wgEnableRestAPI - This setting, ignored since 1.35, has been removed.
• $wgPagePropsHaveSortkey – This temporary setting has been removed, along with the schema change upgrade path it controlled. If your site is still using it, meaning you have not yet applied the pp_sortkey schema change from 1.24, you must now apply it before upgrading.
• The deprecated password policies PasswordCannotMatchBlacklist and PasswordNotInLargeBlacklist were removed. Please use PasswordCannotMatchDefaults and PasswordNotInCommonList respectively instead.

=== New user-facing features in 1.36 ===

• The logo of MediaWiki has changed. This means that the "Powered By MediaWiki" button shown in the skin footer will be different.
• All HTML5 named entities are now accepted in wikitext.
• (T106263) The file description page's alternate sizes now include 2048px.

=== New developer features in 1.36 ===

• Parser test files can now declare a dependency on a specific extension being loaded, not just on the presence of a certain extension tag hook. This is a better fit for extensions like TimedMediaHandler, which affect the output but don't register parser hooks. Use extension:Foo in the !! hooks section of your parser test file to declare a dependency on the Foo extension being loaded.
• To expose code previously present in SpecialBlock/SpecialUnblock to other parts of the code, or to extensions, the new BlockUser and UnblockUser command objects were added. Use the BlockUserFactory and UnblockUserFactory services to create them.
• The hook UsersPagerDoBatchLookupsHook takes now a \Wikimedia\Rdbms\IDatabase, instead of \Wikimedia\Rdbms\DBConnRef, as the first parameter.
• MediaHandlers can now customize the formatting of the metadata they emit by over-riding MediaHandler::formatTag( $key, $value ). The default for unknown tags is numeric formatting; non-EXIF tags which are non-numeric should always use this method to specify the desired formatting.
• The new 'title' type can be used to validate action API and REST API inputs.
• The new ArticleParserOptions hook allows customizing the parser options used to parse wikitext for an article, based on user preferences, title, etc.
• The new 'raw' type can be used to validate action API inputs. It bypasses the Unicode NFC normalization done on inputs of type 'string', so it more suitable when the input is binary or may contain deprecated Unicode sequences or characters (such as U+2001) that should be passed unmodified.
• (T260330) A new abstraction for running shell commands has been introduced, called BoxedCommand. A BoxedCommand object can be obtained with MediaWikiServices::getInstance()->getCommandFactory()->createBoxed().
• ResourceLoader modules can now mark themselves as ES6-only by setting 'es6' => true in their module definition. ES6-only modules will not be executed in browsers that don't support ES6, such as IE11.

=== External library changes in 1.36 ===

==== New external libraries ====

• Added wikimedia/minify 2.2.2.
• Added wikimedia/request-timeout 1.1.0.
• Added wikimedia/shellbox 1.0.4.
• Added WVUI 0.1.0.

==== Changed external libraries ====

• Updated composer/semver from 1.5.1 to 3.2.4.
• Updated guzzlehttp/guzzle from 6.5.4 to 7.2.0.
• Updated jQuery from v3.4.1 to v3.6.0.
• Updated jQuery Migrate from v3.1.0 to v3.3.2.
• Updated jquery.client from 2.0.2 to 3.0.0.
• Updated OOUI from 0.39.3 to 0.41.3.
• Updated pear/mail_mime from 1.10.8 to 1.10.9.
• Updated pear/net_smtp from 1.9.1 to 1.9.2.
• Updated pimple/pimple from 3.3.0 to 3.3.1.
• Updated wikimedia/at-ease from 2.0.0 to 2.1.0.
• Updated wikimedia/cldr-plural-rule-parser from 1.0.0 to 2.0.0.
• Updated wikimedia/common-passwords from 0.2.0 to 0.3.0.
• Updated wikimedia/composer-merge-plugin from 1.4.1 to 2.0.1.
• Updated wikimedia/html-formatter from 1.0.2 to 3.0.1.
• Updated wikimedia/ip-set from 2.1.0 to 3.0.0.
• Updated wikimedia/ip-utils from 1.0.0 to 3.0.2.
• Updated wikimedia/less.php from 3.0.0 to 3.1.0.
• Updated wikimedia/object-factory from 2.1.0 to 3.0.0.
• Updated wikimedia/php-session-serializer from 1.0.7 to 2.0.0.
• Updated wikimedia/remex-html from 2.2.0 to 2.2.2.
• Updated wikimedia/utfnormal from 2.0.0 to 3.0.2.
• Updated wikimedia/wait-condition-loop from 1.0.1 to 2.0.1.
• Updated wikimedia/xmp-reader from 0.7.0 to 0.8.1.

===== Changed development-only external libraries =====

• Updated composer/spdx-licenses from 1.5.3 to 1.5.4.
• Updated doctrine/dbal from 2.10.2 to 3.0.0.
• Updated doctrine/sql-formatter from 1.1.0 to 1.1.1.
• Updated mediawiki/mediawiki-phan-config from 0.10.2 to 0.10.6.
• Updated monolog/monolog from 1.25.3 to 2.2.0.
• Updated nikic/php-parser from 4.4.0 to 4.10.2.
• Updated psy/psysh from 0.10.4 to 0.10.5.
• Updated seld/jsonlint from 1.7.1 to 1.8.3.
• Updated symfony/yaml from ~3.4|~4.3|~5.0.5 to ~3.4|~5.1.
• Updated wikimedia/testing-access-wrapper from 1.0.0 to 2.0.0.

==== Removed external libraries ====

• The html5shiv library has been removed, as support for Internet Explorer 8 has been dropped.
• The wikimedia/avro suggested development-only library has been removed, as the support for logging in Avro format has been dropped.

=== Bug fixes in 1.36 ===

• (T190285) ApiEditPage module used to switch 'undo' and 'undoafter' parameters, if it founds you reversed them (based on assumption that higher revision ID indicates a later revision). The assumption is not always true, and is hindering proper edit undoing in some cases, hence the logic has been removed. Reversing the parameters will now lead to edit conflict or undefined behavior.
• (T263340) In history merging, pages with a content model that does not support redirects will now be recorded as deleted if no revision is being left in the source page (that's if all revisions of the page have been merged to another).

=== Action API changes in 1.36 ===

• (T269636) Access-Control-Max-Age was added to the default list of headers allowed for cross-origin API requests ($wgAllowedCorsHeaders).
• (T258108) Accounts with the 'bot' right no longer have pages automatically added to the watchlist when making API edits, regardless of their preferences. This is to reduce the size of the watchlist data in the database. To add API bot edits to the watchlist, explicitly set the 'watch' option.

=== Languages updated in 1.36 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T258975) Added a Latin/Cyrillic script converter for the Talysh language.
• (T245359) Split Bali script locale from "ban" (Balinese) (ban-bali).
• (T264582) Added language support for Madurese (mad).
• (T259330) Added language support for Mara (mrh).
• (T263968) Added language support for Nias (nia).
• (T270365) Added language support for Tyap (kcg).
• (T276745) Added language support for Wayuu (guc).

=== Breaking changes in 1.36 ===

• Grade C (non-JavaScript) support for Internet Explorer 8 has been dropped.
• (T249459) wfIsBadImage(), deprecated in 1.34, has been removed.
• (T176526) EditPage::getContextTitle() will now throw an exception if a context title was not set using setContextTitle(). Previously, this mis-use would only cause a deprecation warning to be emitted.
• The DeferredStringifier class, deprecated since 1.31, was removed.
• Multiple methods that fell back to the $wgUser global variable were individually hard deprecated previously. The following have now been removed:
  • ApiTestCase::doLogin
  • Article::doDeleteArticle
  • Article::doDeleteArticleReal
  • Article::getComment
  • Article::getCreator
  • Article::getUser
  • Article::getUserText
  • Article::insertProtectNullRevision
  • File::delete
  • File::recordUpload
  • ForeignDBFile::delete
  • ForeignDBFile::recordUpload
  • LocalFile::delete
  • LocalFile::deleteOld
  • LocalFile::recordUpload
  • PageArchive::undelete
  • RecentChange::markPatrolled
  • Title::getUserPermissionsErrors
  • Title::quickUserCan
  • Title::userCan
  • WebRequest::getLimitOffset
  • WikiPage::doDeleteArticle
  • WikiPage::insertProtectNullRevision
• The SpecialPageFactory class, deprecated in 1.32, has been removed. Use the SpecialPageFactory service instead.
• Multiple methods previously had optional User parameters, with fallbacks to the $wgUser global variable. Not passing a User to those methods was previously hard deprecated, and support for not passing a User has now been removed:
  • ArchivedFile::userCan
  • File::userCan
  • FileDeleteForm::__construct
  • FileDeleteForm::doDelete
  • LocalFileDeleteBatch::__construct
  • LogEventsList::getExcludeClause (only needed for the 'user' audience)
  • LogEventsList::userCan
  • LogEventsList::userCanBitfield
  • LogEventsList::userCanViewLogType
  • LogPage::addEntry (also accepts user id instead)
  • OldLocalFile::userCan
  • PatrolLog::record
  • Title::getNotificationTimestamp (though the entire method is deprecated)
  • WikiPage::getComment (only needed for the FOR_THIS_USER audience)
  • WikiPage::getCreator (only needed for the FOR_THIS_USER audience)
  • WikiPage::getUser (only needed for the FOR_THIS_USER audience)
  • WikiPage::getUserText (only needed for the FOR_THIS_USER audience)
• The following hooks have been removed:
  • APIQueryInfoTokens
  • APIQueryRecentChangesTokens
  • APIQueryRevisionsTokens
  • APIQueryUsersTokens
  • ApiTokensGetTokenTypes
• LogEventsList::typeAction previously accepted an optional right parameter, and checked if the context user ($wgUser) had that right. Passing a right was hard deprecated in 1.35, and support for passing a right has now been removed.
• WikiPage::doDeleteArticleReal previously accepted an optional user as its fifth parameter, and fell back to $wgUser if not user was provided. The signature changed to have the user as the second parameter, and the old signature was hard deprecated in 1.35. Support for the old signature has now been removed.
• User::addNewUserLogEntry, deprecated since 1.27, was removed.
• As part of refactoring the EditPage class, EditPage::setPreloadedContent, which had no known callers was removed entirely. Additionally, the following public methods were made private:
  • ::extractSectionTitle
  • ::getSummaryInputWidget
  • ::noSuchSectionPage
  • ::initialiseForm
• EditPage::matchSpamRegex and ::matchSummarySpamRegex, deprecated in 1.35, were removed. Use the SpamChecker service instead.
• The global function wfWaitForSlaves, deprecated in 1.27 and hard-deprecated in 1.35, has been removed. Use LBFactory::waitForReplication() instead.
• Calling Action::factory() with null as the first parameter, rather than a string, was deprecated in 1.35 and support was now removed.
• Calling Action::factory() with an object that wasn't an Article as the second parameter was deprecated in 1.35 and support was now removed.
• The global variable $wgMemc, deprecated since 1.35, has been removed. Usage should generally be migrated to WANObjectCache, or if you really need the internal object, use ObjectCache::getLocalClusterInstance instead.
• The preprocessDump.php maintenance script was removed.
• CategoryFinder, which was deprecated in 1.31 and hard-deprecated in 1.35, has been removed.
• GenderCache::singleton(), which was deprecated in 1.28 and hard-deprecated in 1.35, has been removed.
• Sanitizer::escapeId(), deprecated in 1.30, has been removed.
• Direct invocation of Parser::__construct() (instead of via a ParserFactory) now throws an exception; support has also been removed for several deprecated variants on the arguments passed to Parser::__construct. Direct invocation of Parser::__construct was deprecated in 1.34.
• Parser::setFunctionTagHook(), deprecated in 1.35, has been removed.
• The following properties of Parser, deprecated in 1.35, have been made private:
  • $mTagHooks - use Parser::getTags()
  • $mFunctionHooks - use Parser::getFunctionHooks()
  • $mOutput - use Parser::getOutput()
  • $mPreprocessor - use Parser::getPreprocessor()
• The ParserBeforeTidy hook, deprecated in 1.35, has been removed.
• The ParserBeforeTidy, ParserBeforeStrip, and ParserAfterStrip hooks, deprecated in 1.35, have been removed.
• All methods of MWTidy except for MW::tidy() have been removed. These were each either marked as @internal or deprecated in 1.35.
• (T248062) Mixins .background-image-svg() and .background-image-svg-quick() (provided by mediawiki.mixins.less), which have been deprecated since 1.35, have now been removed. MediaWiki no longer supports any browser which would require this SVG-fallback PNG support, so you can simply use the regular CSS background-image: declaration instead.
• The ResourceLoader module mediawiki.legacy.oldshared and its file 'oldshared.css', deprecated since 1.35 has been removed (T248357).
• ResourceLoader::__construct now requires a Config parameter. The optional nature of this parameter was deprecated in 1.34.
• The LinkBegin and LinkEnd hooks, deprecated in 1.28, have been removed. You can instead use the HtmlPageLinkRendererBegin and HtmlPageLinkRendererEnd hooks, respectively.
• The EmailUser hook passes its fifth param, $error, by reference, to allow hook handlers to add error messages, indicate that they have sent the email instead of core, etc. Setting the parameter to something other than a Status object, true, false, an empty string, an array, or a MessageSpecifier, object, which had been deprecated in 1.29, is no longer supported, and now results in an MWException being thrown.
• Skin::getDynamicStylesheetQuery(), deprecated in 1.32, has been removed. You should use action=raw&ctype=text/css directly.
• Skin::makeI18nUrl(), deprecated in 1.35, has been removed.
• The following User methods, deprecated and moved to BlockManager in 1.34, were removed:
  • ::isDnsBlacklisted
  • ::inDnsBlacklist
  • ::isLocallyBlockedProxy
  • ::trackBlockWithCookie
• Support for v1 of the parser tests file format has been removed; it was deprecated in 1.35. (T174199)
• SpecialUnblockUser::processUIUnblock() now returns a Status object instead of an array of messages or a boolean value. This function was also marked as @internal and is no longer safe to call it publicly.
• mw.Title.getDotExtension() from the 'mediawiki.Title' module was removed without deprecation. You should use mw.Title.getExtension() and prepend the dot if need be.
• Profiler::getTemplated and Profiler::setTemplated, deprecated in 1.34, have been removed.
• DatabaseMysqlBase now requires MySQL version 5.6.4+ when "lagDetectionMethod" is set to "pt-heartbeat".
• Removed HookContainer::getOriginalHooksForTest() without deprecation. This method was introduced in 1.35 for internal use, and appears unused outside of MediaWiki core.
• ParserCache::__construct() now requires three parameters.
• Message->getFormat(), deprecated in 1.29, has been removed.
• Support for passing Article to ParserCache::get, deprecated in 1.35, has been removed.
• ParserCache::singleton(), deprecated in 1.30, has been removed.
• DatabaseBlock::deleteIfExpired and ::fromMaster, deprecated in 1.35, have been removed.
• Some deprecated AbstractBlock methods have been removed:
  • ::prevents, deprecated in 1.33
  • ::shouldTrackWithCookie, deprecated in 1.34
  • ::getBlocker, deprecated in 1.35
  • ::setBlocker, deprecated in 1.35
  • ::getBlockErrorParams, deprecated in 1.35
• Multiple DatabaseBlock methods dealing with cookies, deprecated in 1.34, have been removed:
  • ::setCookie
  • ::clearCookie
  • ::getCookieValue
  • ::getIdFromCookieValue
  • ::shouldTrackWithCookie
• The public static callback function SpecialUnblock::processUIUnblock has been removed. This method was for internal use only, and appears unused outside of MediaWiki core.
• ChangeTags::truncateTagDescription, deprecated in 1.35, has been removed.
• Deprecated null fallbacks in PasswordReset constructor have been removed.
• User::isEveryoneAllowed and User::getAllRights, deprecated in 1.34, has been removed.
• The following methods of the UserGroupMembership class, deprecated in 1.35, has been removed:
  • ::initFromRow
  • ::newFromRow - use UserGroupManager::newGroupMembershipFromRow
  • ::selectFields - use UserGroupManager::getQueryInfo
  • ::delete - use UserGroupManager::removeUserFromGroup
  • ::insert - use UserGroupManager::addUserToGroup
  • ::purgeExpired - use UserGroupManager::purgeExpired
  • ::getMembershipsForUser - use UserGroupManager::getUserGroupMemberships
  • ::getMembership - use UserGroupManager::getUserGroupMemberships
• The public static callback function SpecialBlock::validateTargetField has been removed. This method was for internal use only, and appears unused outside of MediaWiki core.
• The public static callback function SpecialUploadStash::tryClearStashedUploads has been removed. This method was for internal use only, and appears unused outside of MediaWiki core.
• SpecialComparePages::showDiff() ::revOrTitle(), ::checkExistingTitle(), and ::checkExistingRevision() were marked as @internal to allow for breaking changes. They are no longer safe to call. The methods were unused outside of MediaWiki core.
• Each special page within core now uses service injection via it constructor. When extending these special pages, a call to the grandparent constructor (SpecialPage::__construct()) in the sub-class would now break the derived special page, as the fallback code in the parent constructor cannot set the services as needed. Be sure to call the parent constructor when extending core special pages. Extending core's special pages is not part of the stable interface, and should generally be avoided.
• Language::getExtraUserToggles and ::viewPrevNext, deprecated in 1.34, have been removed.
• StreamFile::send404Message and ::parseRange, deprecated in 1.34, have been removed.
• SVGMetadataExtractor class, deprecated in 1.34, has been removed.
• ProcessCacheLRU class, deprecated in 1.32, has been removed.
• wfForeignMemcKey(), deprecated in 1.35, has been removed.
• LoadBalancer::safeWaitForMasterPos(), deprecated in 1.34, has been removed.
• JobQueue::factory() now requires its idGenerator option. The optional nature of this option was deprecated in 1.35.
• ApiFeedRecentChanges::getFeedObject has been changed to private, and appears unused outside of MediaWiki core.
• Skin::subPageSubtitle() has been changed to private method. Callers should use Skin::prepareSubtitle().
• RevisionDeleter::checkRevisionExistence was removed without deprecation. It had no known callers.
• wfForeignMemcKey() and wfMemcKey(), deprecated in 1.35, have been removed.
• MediaWiki now also requires the php-intl extension.
• BotPassword::save() now returns a Status object for the result rather than a bool.
• The methods in CoreTagHooks have been marked @internal and type hints have been added. The methods appeared to be unused outside of MediaWiki core.
• SquidPurgeClient and SquidPurgeClientPool, deprecated since 1.35, have been removed.
• Several methods on WikiPage will now throw an exception when called on a WikiPage instance that where constructed on a title that does not refer to a proper page (but rather a special page or interwiki link). The behavior was previously undefined and could in some cases lead to data corruption. Affected methods are: getId(), insertOn(), newPageUpdater(), doUpdateRestrictions(), doDeleteArticleReal(), doRollback(), and doEditContent().
• The ParserTestRunner no longer invokes the ParserTestTables hook. Instead, it clones all database tables before running tests, like MediaWikiIntegrationTest does. If an extension was mis-using the hook to exclude tables from the clone, that will no longer occur, and tests may fail.
• The following classes, which were only loaded for tests and had no uses found in public MediaWiki-related git, were removed:
  • MockWebRequest
  • UserWrapper
• Passing Title as a second parameter to RevisionStore::getPreviousRevision and getNextRevision, hard deprecated since 1.31, was prohibited.
• (T275619) Maintenance::hasOption and Maintenance::getOption now behave as documented and are not altered by previous calls to these methods.
• The internal class FirejailCommand was removed.
• Command::execute() now returns a Shellbox\Command\UnboxedResult instead of a MediaWiki\Shell\Result. Any type hints should be updated.
• WikiPage::$mIsRedirect was removed.
• ObjectCache::detectLocalServerCache(), deprecated in 1.35, was removed.
• The following functions from the Title class have been removed:
  • countRevisionsBetween
  • getAuthorsBetween
• The PageProps class was converted to a service. PageProps::overrideInstance was removed, and MediaWikiServices::redefineService should be used instead.
• Support for creating a MediaWikiTitleCodec object without the InterwikiLookup and NamespaceInfo services, deprecated in 1.34, was removed. Note that the MediaWikiTitleCodec class is not @newable or @stable to create, and should be retrieved from MediaWikiServices instead.
• The $wgContLang variable, deprecated in 1.32, was removed. You can instead use MediaWikiServices::getInstance()->getContentLanguage().
• User::clearAllNotifications(), hard deprecated in 1.35, was removed. Use WatchlistManager::clearAllUserNotifications() instead.
• DatabaseBlock::getBlocker can return any UserIdentity instance, not just User.
• MediaWiki::triggerJobs(), deprecated in 1.34, was removed.
• The following Article methods, deprecated in 1.35, were removed:
  • checkFlags
  • checkTouched
  • clearPreparedEdit
  • doDeleteUpdates
  • doEditUpdates
  • doPurge
  • doViewUpdates
  • exists
  • followRedirect
  • getAutoDeleteReason
  • getCategories
  • getContentHandler
  • getContentModel
  • getContributors
  • getDeletionUpdates
  • getHiddenCategories
  • getId
  • getLatest
  • getLinksTimestamp
  • getMinorEdit
  • getOldestRevision
  • getRedirectTarget
  • getRedirectURL
  • getRevision
  • getTouched
  • getUndoContent
  • hasViewableContent
  • insertOn
  • insertRedirect
  • insertRedirectEntry
  • isCountable
  • isRedirect
  • loadFromRow
  • loadPageData
  • lockAndGetLatest
  • makeParserOptions
  • pageDataFromId
  • pageDataFromTitle
  • prepareContentForEdit
  • protectDescription
  • protectDescriptionLog
  • replaceSectionAtRev
  • replaceSectionContent
  • setTimestamp
  • shouldCheckParserCache
  • supportsSections
  • triggerOpportunisticLinksUpdate
  • updateCategoryCounts
  • updateIfNewerOn
  • updateRedirectOn
  • updateRevisionOn
  • doUpdateRestrictions
  • updateRestrictions
  • doRollback
  • commitRollback
  • generateReason
• The monolog-based logging system has dropped the Avro format. Because of this, the AvroFormatter class and the AvroValidator utility class have been removed without deprecation.
• AbstractBlock::$mReason, deprecated in 1.34, was removed. Use AbstractBlock::getReasonComment and AbstractBlock::setReason instead.

=== Deprecations in 1.36 ===

• (T278026) The DB_MASTER constant has been deprecated in favour of DB_PRIMARY.
• (T245963) User::getGrantName() is now hard deprecated and will be removed in a subsequent release. Use MWGrants::grantName() instead.
• wfIncrStats() is now deprecated. Use MediaWikiServices::getInstance() ->getStatsdDataFactory()->updateCount() instead.
• WikiPage::doEditContent() is now deprecated. Use WikiPage::doUserEditContent() instead. Note that doEditContent() was also deprecated in 1.32 for unrelated reasons and doUserEditContent() is deprecated for other reasons, however, using doUserEditContent() is recommended over using doEditContent().
• WikiPage::doUserEditContent() is now deprecated. Use PageUpdater::saveRevision instead. Note that the new method expects callers to take care of checking EDIT_MINOR against the minoredit right, and to apply the autopatrol right as appropriate.
• LocalFile::recordUpload2, soft deprecated in 1.35, now emits deprecation warnings. Use ::recordUpload3 instead.
• Constructing a new instance of the ParserOptions class without providing a User object, which falls back to the global $wgUser, is now deprecated.
• The User class, which was marked as @newable in 1.35, is no longer newable, meaning that it is no longer safe to manually call the constructor via new User. Instead, use the UserFactory service. Additionally, the following static constructor methods were deprecated in favor of using the UserFactory service:
  • User::newFromName
  • User::newFromId
  • User::newFromActorId
  • User::newFromIdentity
  • User::newFromAnyId
  • User::newFromConfirmationCode
• The following User methods have been hard deprecated in favor of the new UserEditTracker service:
  • User::getFirstEditTimestamp
  • User::getLatestEditTimestamp
• The confusingly-named User->isLoggedIn() method has been deprecated in favour of the method it wraps, User->isRegistered().
• Use of the preprocessor=Preprocessor_DOM option in parser test files has been deprecated. Preprocessor_DOM was removed in 1.35.
• ParserOptions::setTidy() has been deprecated. It has had no effect since 1.35.
• Sanitizer::escapeIdReferenceList() has been deprecated; it will eventually be made private to the class, as it appears to have no uses outside the Sanitizer class.
• Sanitizer::hackDocType() is deprecated; it will eventually be made private.
• Skin::getIndicatorsHTML() is deprecated. The functionality can be retained by reimplementing the method using the raw indicators data from OutputPage::getIndicators.
• Skin::makeVariablesScript() has been deprecated. Use ResourceLoader::makeInlineScript() instead.
• SpecialPageFactory::getRestrictedPages() has been deprecated. Use SpecialPageFactory::getUsablePages() instead.
• Title::nameOf() is deprecated; use Title::newFromID()->getPrefixedDBkey() instead.
• DatabaseBlock::insert, DatabaseBlock::update, DatabaseBlock::purgeExpired and DatabaseBlock::delete are deprecated. Use DatabaseBlockStore::insertBlock, DatabaseBlockStore::updateBlock, DatabaseBlockStore::purgeExpiredBlocks and DatabaseBlockStore::deleteBlock instead.
• SpecialBlock::getTargetAndType and AbstractBlock::parseTarget are deprecated. Call BlockUtils::parseBlockTarget instead.
• SpecialUnblock::processUnblock was deprecated - use UnblockUserFactory service instead.
• Deprecated MediaWikiIntegrationtestCase::removeTemporaryHook() in favor of MediaWikiIntegrationtestCase::clearHook().
• Skin::getSearchLink(), also exposed as 'searchaction' option in SkinTemplate, has been deprecated. Use Title or SpecialPage methods directly.
• Skin::getAllowedSkins and ::getSkinNames have been deprecated. Use their respective equivalents in SkinFactory instead.
• The RollbackComplete hook has been deprecated, use the PageSaveComplete hook instead.
• Skin::makeUrl() has been deprecated. Title methods should be used instead.
• Skin::privacyLink(), Skin::disclaimerLink() and Skin::aboutLink() have been deprecated. Please use Skin::footerLink() instead.
• Skin::getLogo() has been deprecated. Use ResourceLoaderSkinModule instead.
• The module mediawiki.toc.styles has been replaced by ResourceLoaderSkinModule. If you are having problems styling table of contents ensure you have an updated skin.
• Skin::mainPageLink() has been deprecated. Use LinkRenderer service instead.
• BaseTemplate::getToolbox() method has been hard deprecated. The toolbox data is now available in a sidebar data array which you can get from any class that's extending QuickTemplate class.
• Constructing a DefaultPreferencesFactory, LinkHolderArray or PasswordReset without a $hookContainer parameter is deprecated.
• Autopromote class, soft deprecated since 1.35, now emits deprecation warnings. Use UserGroupManager instead.
• SpecialBlock::canBlockEmail has been deprecated. Please use BlockPermissionChecker::checkEmailPermissions instead.
• SpecialBlock::checkUnblockSelf has been deprecated. Please use BlockPermissionChecker::checkBlockPermissions instead.
• SpecialBlock::parseExpiryInput was deprecated - use BlockUser::parseExpiryInput instead.
• SpecialBlock::validateTarget has been deprecated, use BlockUtils instead.
• SpecialBlock::validateTargetField has been deprecated for external use, use BlockUtils instead.
• SpecialPage::getLanguageConverter has been deprecated, use LanguageConverterFactory::getLanguageConverter() directly.
• ParserCache::getKey has been deprecated. Use ParserCache::getMetadata and ParserCache::makeParserOutputKey instead.
• The PHPUnit4And6Compat class, used to provide compatibility with PHPUnit 4, was removed. MediaWiki support for PHPUnit 4 ended with the removal of HHVM support.
• The PHPUnit6And8Compat class, used to provide compatibility with PHPUnit 6, was removed without deprecation. This class was introduced during the upgrade to PHPUnit 8, but never used.
• MediaWikiIntegrationTestCase::assertType, hard-deprecated in 1.35 due to incompatibility with PHPUnit 8, was removed.
• ParserCache::getETag has been deprecated, instead build suitable etag explicitly.
• The following functions from the Language class have been hard deprecated and will be removed in a subsequent release:
  • findVariantLink
  • convertTitle
  • updateConversionTable
  • commafy
• The following functions from the Title class have been hard deprecated:
  • getPreviousRevisionID
  • getNextRevisionID
  • getEarliestRevTime
• The following functions from the User class have been hard deprecated:
  • getDefaultOptions
  • getDefaultOption
• The mw.language.commafy client-side method has been deprecated, to match the deprecation of Language::commafy. Use mw.language.convertNumber instead.
• The "es6-promise" module has been deprecated. Use "es6-polyfills" instead.
• Title::isDeleted() and Title::isDeletedQuick() have been deprecated. Please use Title::getDeletedEditsCount() and Title::hasDeletedEdits() instead.
• Article::getContentObject, soft-deprecated since 1.32, was hard-deprecated.
• WikiRevision::importUpload, soft-deprecated since 1.31, was hard-deprecated.
• Html::infoBox() has been deprecated. There's no replacement.
• Message::toString() without a $format parameter, soft-deprecated since 1.28, was hard-deprecated. Use explicit formatting methods instead, such as Message::text() and Message::escaped().
• BagOStuff::makeKeyInternal() usage outside of BagOStuff has been deprecated.
• BagOStuff::setDebug() is deprecated and calls to it are ignored. Debug logs are now unconditionally enabled.
• The following global functions have been hard deprecated:
  • wfAppendToArrayIfNotDefault
  • wfAcceptToPrefs
  • wfClearOutputBuffers
  • wfConfiguredReadOnlyReason
  • wfDebugMem
  • wfGetPrecompiledData
  • wfNegotiateType
• BeforeParserFetchTemplateAndtitleHook has been deprecated; replace with the new BeforeParserFetchTemplateRevisionRecord hook. (The similar ParserFetchTemplateHook was deprecated in 1.35; the new hook replaces both.)
• The InterwikiLoadPrefix hook has been deprecated; it is not compatible with future wikitext parsers (which need to enumerate all interwiki prefixes). In test cases please use $wgInterwikiCache instead.
• WikiPage instances should no longer be constructed for titles that do not represent editable pages (e.g. special pages). WikiPages were always documented to represent "MediaWiki article and history".
• Skin::getSkinStylePath() has been deprecated. Please replace usages with the direct path to the resources.
• The second argument of EnhancedChangesList::getDiffHistLinks, $query, has been deprecated.
• The ParserTestTables hook has been deprecated; it is no longer necessary after a ParserTestRunner refactoring.
• The following classes have been hard deprecated: CachedAction, SpecialCachedPage, CacheHelper, ICacheHelper. They were unused in MediaWiki ecosystem, so no replacement was provided.
• The ProtectionForm::buildForm hook has been deprecated. Please use the ProtectionFormAddFormFields hook instead.
• RevisionStore::newMutableRevisionFromArray has been hard deprecated. Instead, MutableRevisionRecord should be constructed directly via constructor.
• UserIdentity::getActorId() is deprecated. The actor ID should not be exposed to application logic. Storage layer code should use the ActorNormalization service for normalizing and denormalizing user names.
• Constructing a UserIdentityValue with an actor ID as the third parameter is deprecated. The parameter should be omitted. Storage layer code should use the ActorNormalization service for normalizing and denormalizing user names.
• Command::cgroup() is deprecated and no longer functional. $wgShellCgroup is now implemented as an Executor option.
• Command::restrict() is deprecated. Instead use the new separate accessors.
• MWTidy::tidy() is deprecated. Use MediaWikiServices::getTidy()-tidy() instead.
• TidyDriverBase::supportsValidate() is deprecated; it has always returned false since 1.33.
• WatchedItem::getUser hard-deprecated in favor of ::getUserIdentity.
• WatchedItemStoreInterface::enqueueWatchlistExpiryJob was hard deprecated in favor of the new method maybeEnqueueWatchlistExpiryJob that takes care of relevant configuration checks.
• LogEntry::getPerformer() and its implementations have been hard-deprecated, in favor of ::getPerformerIdentity().
• AuthManager::singleton(), deprecated in 1.35, is hard deprecated. Use MediaWikiServices::getAuthManager() instead.
• User::clearNotification(), deprecated in 1.35, is hard deprecated. Use WatchlistManager::clearTitleUserNotification() instead.
• Passing string to DatabaseBlock::setBlocker was deprecated. Only UserIdentity is now allowed.
• DatabaseBlock constructor 'byText' option was deprecated in favour of 'by' option, which now accepts UserIdentity. Passing user ID is deprecated.
• Parser::getUser was deprecated. Use Parser::getUserIdentity instead.
• DatabaseBlock::isWhitelistedFromAutoblocks was deprecated. Use DatabaseBlock::isExemptedFromAutoblocks instead.
• User::isIPRange(), deprecated in 1.35, is hard deprecated. Use the UserNameUtils service or IPUtils directly.
• BaseTemplate::getFooterIcons(), deprecated in 1.35, is hard deprecated. Read footer icons from template data requested via $this->get('footericons').
• box-shadow() LESS mixin from mediawiki.mixins is deprecated due to updated basic browser support. Use unprefixed property box-shadow: instead.
• MergeHistory::checkPermissions was deprecated. Use ::probablyCanMerge or ::authorizeMerge instead.
• User::isValidUserName(), deprecated in 1.35, is hard deprecated. Use the UserNameUtils service instead.
• The TitleArrayFromResult hook has been deprecated.
• The EditPageBeforeEditToolbar hook has been deprecated; it has become defunct after the classic edit toolbar was removed. Use one of the many other EditPage hooks instead.
• Deprecated the class name MediaWiki\User\WatchlistNotificationManager; use MediaWiki\Watchlist\WatchlistManager instead. Deprecated the method MediaWikiServices->getWatchlistNotificationManager(); use MediaWikiServices->getWatchlistManager() instead.
• The "ArticleEditUpdatesDeleteFromRecentchanges" hook, deprecated in 1.35, has been removed. Other hooks like "RecentChange_save" can be used instead.

=== Other changes in 1.36 ===

• The 'tidy' key in ParserOptions (used in the parser cache) has been removed. It has had no effect since 1.35.
• A future release of MediaWiki will make {{=}} a built-in parser function, for use when automatically escaping the = character in template arguments. A tracking category and parser warning have been added to this release when {{=}} is used and it expands to something other than =.
• The implementation of TestFileReader::read has been changed to use Parsoid's parser test file parser. This should be compatible with existing code, but it only supports version 2 of the test file specification and may be more strict when parsing invalid input, including duplicate tests.
• BeforeParserFetchTemplateRevisionRecord, a new hook, unifies and replaces the old BeforeParserFetchTemplateAndtitleHook and ParserFetchTemplateHook.
• The SkinLessImportPaths attribute was added, allowing skins to add a directory to the import path for LESS stylesheets. Skins can use this to provide a custom version of mediawiki.skin.variables.less, setting skin-specific values for certain LESS variables.
• The interaction between ContentHandler::getParserOutputForIndexing() and ContentHandler::getDataForSearchIndex() has been clarified (the latter should only be called with the result of the former). Extensions may override getParserOutputForIndexing() to skip generating HTML, which may improve indexing performance. (The default implementation still generates HTML, and getDataForSearchIndex() implementations can still rely on it if they do not over-ride getParserOutputForIndexing().)
• Article::fetchContentObject, ::mContentObject, ::mContentLoaded, ::mRevIdFetched, all deprecated since 1.32, were removed.
• Article::mParserOptions and ::setParserOptions were removed.
• Article and ImagePage::getEmptyPageParserOutput, unused, were removed.
• ParserCache's default serialization format was changed from PHP serialization to JSON serialization. In case some installed extension do not support JSON yet, $wgParserCacheUseJson can be used to revert back to PHP serialization.
• PermissionManager::groupHasPermission, ::getGroupPermissions and ::getGroupsWithPermission were deprecated, use GroupPermissionsLookup service instead.
• WatchedItemStoreInterface now accepts PageIdentity where it accepted LinkTarget, calling with LinkTarget was deprecated.
• 'movable' attribute has been added to the 'namespaces' property of extension.json schema. Extensions that define namespaces can set it to false to disallow moving pages in the specified namespace. Extensions should either use this or NamespaceIsMovableHook, but not both. The hook overrides the attribute.

== Compatibility ==

MediaWiki 1.36 requires PHP 7.3.19 or later and the following PHP extensions:

• ctype
• dom
• fileinfo
• iconv
• intl
• json
• mbstring
• xml

MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used, but support for them is somewhat less mature.

The supported versions are:

• MySQL 5.5.8 or later
• PostgreSQL 9.4 or later
• SQLite 3.8.0 or later

== Online documentation == Documentation for both end-users and site administrators is available on MediaWiki.org, and is covered under the GNU Free Documentation License (except for pages that explicitly state that their contents are in the public domain):

   https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation

== Mailing list == A mailing list is available for MediaWiki user support and discussion:

   https://lists.wikimedia.org/mailman/listinfo/mediawiki-l

A low-traffic announcements-only list is also available:

   https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce

It's highly recommended that you sign up for one of these lists if you're going to run a public MediaWiki, so you can be notified of security fixes.

== IRC help == There's usually someone online in #mediawiki on irc.libera.chat.

= MediaWiki 1.35 =

== MediaWiki 1.35.3 ==

This is a security and maintenance release of the MediaWiki 1.35 branch.

=== Changes since MediaWiki 1.35.2 ===

• (T259685) SQLite compatibility with ZeroConf VisualEditor was fixed in 1.35.2.
• (T196906, T242751) Fix the test MonologSpiTest::testDefaultChannel.
• (T279964) Parser: Trim trailing whitespace as the last step in pre-save transform.
• (T278026) rdbms: Add DB_PRIMARY to replace DB_MASTER.
• (T252853) Update updateSearchIndex.php to 2006+ standards.
• (T276945) Define a batch size in maintenance/manageJobs.php.
• (T276945) Implement JobQueueDB::getAllAbandonedJobs.
• (T269676) authevents: strval() variables passed to status when logging.
• (T280944) $wgIncludejQueryMigrate - This setting allows the jQuery Migrate plugin to be disabled. It has been enabled by default since MediaWiki 1.27.
• (T281584) apihelp-query+iwlinks-param-prop: s/interlanguage/interwiki/.
• (T281635) Delete maintenance/cleanupAncientTables.php.
• (T282133) RedisConnectionPool: Suppress phan issue.
• (T281549) WebInstaller: Don't show the announce-l subscribe checkbox temporarily.
• (T278266) Fix annoying E_NOTICE about undefined 'alt' index in Skin#makeFooterIcon.
• (T264214) UserRightsProxy::addGroup has to be allowed to update the old group as well, which is used for granting interwiki rights.
• (T269776, T278266) getFooterIcons should not return empty arrays.
• (T274966) Skip AvroFormatterTest::testSchemaNotAvailable on PHP 8.0.
• phpunit: fail on warnings.
• (T283247) Freenode -> Libera per wikimedia moving from freenode to libera.
• (T243124) Make phpunit:unit accept extension*.json to populate the classes.
• (T142663) Add extension.json merge strategy "provide_default".
• (T283540) HookContainer: Fix normalization of callback for static handler.
• (T283464) Fix array order for array_replace_recursive merge strategy.
• (T247223) Optimise MessageCache::isMainCacheable() for the single-message case.
• (T278579) Don't send headers on ob_end_clean().
• (T280226, CVE-2021-35197) SECURITY: Prevent blocked users from purging pages.

== MediaWiki 1.35.2 ==

This is a security and maintenance release of the MediaWiki 1.35 branch.

MediaWiki 1.35.2 supports Composer 2.0. It is reccommended to make sure your libraries are up to date on Composer 1.x, before running Composer 2.x.

While normally running update.php isn't required for point releases, it is recommended to run it for 1.35.2 so that iwlinks.iwl_prefix is updated to take 32 characters.

=== Changes since MediaWiki 1.35.1 ===

• (T270450) The confusingly-named User->isLoggedIn() method has been deprecated in favour of the method it wraps, User->isRegistered().
• Upgrade pimple/pimple from 3.3.0 to 3.3.1 for PHP 8.0 support.
• Upgrade seld/jsonlint from 1.7.1 to 1.8.3 for PHP 8.0 support.
• Upgrade doctrine/dbal from 2.10.4 to 3.0.0 for PHP 8.0 support.
• (T270734) Fix display of Special:Preferences URL in password reset email.
• (T252774, T271441) resourceloader: Give SkinModule 'features' option an extensible default.
• (T271441) Unknown features shouldn't break style output.
• (T264986) Make use of CURLMOPT_MAX_HOST_CONNECTIONS conditional on having curl >= 7.30.0.
• DefaultSettings.php: Update $wgPingback documentation.
• Fix docs for LanguageConverter::translate.
• (T272250) Don't rely on implicit string->int cast in comparison.
• (T272327) Exif::isSlong: Cast input to float so PHP 8.0 abs() doesn't whine.
• (T272328) UploadBase: Don't call MimeAnalyzer if mTempPath is null.
• Remove nonfunctional default sampling for WANObjectCache metrics.
• (T258851) Prevent service injection to LoadExtensionSchemaUpdates hook.
• (T270852) Hooks: Map dash character to underscore when generating hook names.
• (T271551, T270145) Fix fetching ipblock-exempt within BlockManager::getUserBlock.
• PHPVersionCheck: The PHP Group only supports PHP >= 7.3.0.
• (T248925) Set empty closures in DatabaseTest to fix PHP 8 tests.
• (T34217) rdbms: Remove outdated MySQL 4 references and fix doc URLs.
• (T248925) Special:Contributions reports negative namespace error on PHP 8.
• (T248925) objectcache: Fix non-numeric string check in HashBagOStuff for PHP 8.
• (T248925) Fix CacheTime::getCacheExpiry for PHP 8.
• (T259685) Allow REST API POST handlers to opt out of mandatory SQLite locking.
• (T91820, T259685) MWLBFactory: rename magic HTTP header for opting out of SQLite write lock.
• (T272326) Fix DeprecationHelperTest on PHP 8.
• Upgrade wikimedia/less.php from 3.0.0 to 3.1.0 for PHP 8.0 support.
• (T236639) OutputPage: Make $wgDebugRedirects work again.
• (T274648) registration: Allow reusing cached metadata between wikis.
• CdnCacheUpdate: Send full URL instead of path to Curl for purge.
• Upgrade monolog/monolog from 1.25.3 to 2.2.0 for PHP 8.0 support.
• FileBackend: Do not use SOCKET_ENOENT on windows.
• (T275441) ApiQueryUserInfo: Allow all uiprops to be requested at once.
• (T275261) Escape wikitext in the title in invalid title error messages.
• (T275242) Extend iwlinks.iwl_prefix to VARBINARY(32) on MySQL.
• (T246594, T270228) PHPVersionCheck: Complain about known-bad versions above minimum.
• (T275824) Upgrade wikimedia/composer-merge-plugin from 1.4.1 to 2.0.1 for Composer 2.0 support.
• (T269293) Record all used options in metadata.
• Allow usage of Composer 2.0 to install MediaWiki's dependencies.
• (T259872) skins: Call headElement() after getTemplateData() in SkinMustache.
• (T277009, CVE-2021-30158) SECURITY: Allow blocked users to access Special:ResetTokens.
• (T272412) Add "Account data" section to user preferences.
• (T268310) Add list of thumbnail urls to LocalFilePurgeThumbnails hook.
• (T277520) registration: Allow specifying immovable namespaces in extension.json.
• (T275619) Maintenance::hasOption and Maintenance::getOption now behave as documented and are not altered by previous calls to these methods.
• (T254688) Remove page inner join from subquery in SpecialWhatLinksHere.
• (T122124) signup: added help message for security.
• (T278014, CVE-2021-30154) SECURITY: Escape mediastatistics-header-* messages on Special:NewFiles.
• (T278058, CVE-2021-30157) SECURITY: Escape rcfilters-filter-* messages on ChangesList pages.
• (T277414) HTMLFormField: Use non namespaced class name rather than static::class.
• (T268673) maintenance: Don't create SearchUpdate in rebuildtextindex.php for page_namespace below 0.
• (T246594, T270228) Mark ParserOptionsTests skipped on PHP 7.4.0-7.4.8.
• (T268230) Switch to new MediaWiki logo by Serhio Magpie.
• (T271735) Expand config-pingback-help, link to privacy policy in config-pingback.
• Fix documentation of user-global in $wgRateLimits.
• BackupDumper: Add -o as shortcode for --output.
• (T235554) Disable DEFER_SET_LENGTH_AND_FLUSH headers to avoid HTTP errors.
• (T270713, CVE-2021-30152) SECURITY: Allow user to only apply protection they have right to do so via action=protect.
• (T272386, CVE-2021-30159) SECURITY: Non-admin deleted enwiki page in fast double move.
• (T270988, CVE-2021-30155) SECURITY: ContentModelChange: Check that user can create pages.
• (T279451, CVE-2021-30458) SECURITY: Parsoid comment fostering allows for inserting mostly arbitrary <meta> tags.

== MediaWiki 1.35.1 ==

This is a security and maintenance release of the MediaWiki 1.35 branch.

While normally running update.php isn't required for point releases, it is recommended to run it for 1.35.1 so that sites.site_language is updated to take 35 characters.

Watchlist Expiry is no longer considered experimental, but is off by default. To enable it, set $wgWatchlistExpiry = true; in your LocalSettings.php.

=== Changes since MediaWiki 1.35.0 ===

• (T263929) purgeList.php Fix all-namespaces option to match one used in code.
• (T248719) ParserCache::get - fix wfDeprecated call.
• (T261430) WatchlistExpiryWidget: Move focus to expiry dropdown after hitting Tab.
• Preload mediawiki.watchstar.widgets before api request.
• (T261030) ApiEditPage: Show existing watchlist expiry if status is not being changed.
• (T264502) Fix PHP 8 compat with strcspn() $length parameter exceeding string.
• (T248925) Remove final modifier on private function.
• (T264683) Remove ipb_anon_only from ipb_address_unique index addition.
• (T261415) Add days left messages to changes-lists' clock icons.
• Fix order of wfDeprecated parameters in ExternalStoreDB::getSlave.
• (T261260) Preload class used in HeaderCallback.
• (T260868, T260009) Normalize WatchedItem expiry field.
• (T264683) Remove doTable check from (Mysql|Sqlite)Updater::indexHasFields.
• (T264534) ApiPageSet: Avoid infinite loop when merging redirects.
• (T196906) Empty Monolog loggers are now real blackholes.
• (T258649) WatchAction: avoid UPDATE when old and new watch period is indefinite.
• Parser: Adjust typehint to show that getTitle can return null.
• (T263592) media: Fix case of FlashPixVersion in FormatMetadata::makeFormattedData().
• (T265223) BaseTemplate: Guard against passing zero arg to array_merge().
• (T264965) Fix base path handling for MessagePosterModule registration.
• (T252183) Fix Database::getTempTableWrites for multi table DDLs.
• (T182546) Fix switch/case indentation per mediawiki coding conventions.
• Flip Yoda conditionals.
• (T263213) Move SkinTemplate::getFooterLinks() to Skin.
• build: Updating mediawiki/mediawiki-codesniffer to 33.0.0.
• (T267105) Make ImageBuilder::checkMissingImage public.
• Updating guzzlehttp/guzzle (6.5.4 => 6.5.5).
• (T266681) Support new style hook registration on install and update.
• (T266980) Fix unsetting of copyright icon in FooterIcons.
• upload.js: Don't assume that warnings array will include 'code' key.
• upload.js: Fix typo in upload API.
• (T264333, T190988, T266903) Pass along ignorewarnings param to all individual chunks being uploaded.
• (T267558) importTextFiles.php: Replace deprecated WikiRevision:setText().
• (T266418) composer.json: add requirement for composer-plugin-api ^1.1.
• (T261431) Add ARIA attributes to watchlink and its notification.
• (T258877) Change invalid 'Content-Encoding: none' header.
• Fix trailing ; in patch-sites-site_language-35.sql.
• (T248852) wfAssembleUrl: Handle empty query field in URL bits.
• (T268846) Updating wikimedia/testing-access-wrapper (1.0.0 => 2.0.0).
• (T268887) migrateComments: Cast array keys back to string before passing to the DB.
• (T266619) Introduce new $wgThumbPath config.
• (T269178) MemcachedClient: Cast Resource to integer.
• (T263925) Use the old HookContainer to set up the post-reset services.
• Change "site cache" to just "cache" in the right-purge message.
• [UploadedFileStreamTest] Skip test with chmod.
• (T269710) Updating composer/semver (1.5.1 => 1.7.2).
• (T269710) Updating mediawiki/mediawiki-codesniffer (33.0.0 => 34.0.0).
• (T260631, T260633), BotPassword::save() now returns a Status object for the result rather than a bool. The length of the bot password grants and restriction fields are now validated, and an error will be thrown if it would be truncated by the database.
• (T265778) Fix English/*nix specific error messages in FSFileBackend.
• (T267543) Split dropping of image.img_user_timestamp.
• [FileTest] Do not assume /tmp exists on windows.
• Clean up temp files correctly after unit tests.
• Skip undo related phpunit tests when diff3 is missing.
• (T269964) rdbms: Remove outer parentheses in insert query for Postgres.
• (T263911) In MWExceptionHandler::report(), catch all throwables.
• (T268894, CVE-2020-35474) SECURITY: Use Html::element in ChangeListSpecialPage for sanity.
• (T268917) Use Xml::element in SpecialUserrights for sanity.
• (T268938, CVE-2020-35478, CVE-2020-35479) SECURITY: Pass escaped html to LogFormatter::makePageLink for sanity.
• (T268938) Fixed mixed escaping in Language::translateBlockExpiry.
• (T263911) UserOptionsManager: don't differentiate anons caches.
• (T261260) HeaderCallback: pre-cache request ID.
• Parsoid updated to v0.12.1.
• (T205908, CVE-2020-35477) SECURITY: Unable to change visibility of log entries when MediaWiki:Mainpage uses Special:MyLanguage.
• (T120883, CVE-2020-35480) SECURITY: Divergent behavior for contributions and user pages of hidden users and missing users.
• (T270145) Fix condition that can lead to using APCOND_BLOCKED in $wgAutopromote to cause an OOM in PHP.

== MediaWiki 1.35.0 ==

=== Changes since MediaWiki 1.35.0-rc.3 ===

• (T261258) Remove checks for ancient ImageMagick versions in BitmapHandler.
• (T260232) Don't include null page ids in query list for category dumps.
• (T260009) Check existing watchitem when saving action=watch.
• (T259055) Correct success messages for action=watch.
• mediawiki.page.ready: Simpler tablesorter/makeCollapsible call.
• mediawiki.page.ready: Fix skin override config flags, wrong way round.
• (T262175, T248512) Remove requirement for ApiWatchlistTrait to be in ApiBase.
• (T259053, T260434) Watchlist: Fix updateWatchLink removing css class when action=watch.
• (T261901, T261476) mediawiki.notification: Don't close notif when clicking <select> element.
• (T251506) Sanitizer: Truncate IDs to a reasonable length.
• (T259452) Parsoid updated to v0.12.0.
• (T261970) watch.ajax: Add expiry support to watchpage.mw event.
• (T262900) Fix failure of rebuildLocalisationCache.php due to ResourceLoader hook.
• (T263014) Hard deprecate File::userCan() with $user=null.
• (T262547) Use localized success message after watching via action=watch.
• (T201491) Fix typo 'Watchlst' in apihelp-edit-param-watchlistexpiry.
• (T261081) Installer: consistently reset Language objects.
• (T250449, T250450) Installer: consistently reset Language objects.
• Explicitly wrap some XML calls in libxml_disable_entity_loader().
• (T262934) Ensure dropdown label is always on its own line.
• (T246855) resourceloader: Use a local HookRunner.
• (T263604) Have findBadBlobs.php require Maintenance.php rather than cleanupTable.inc.
• (T263606) Set fake time, to avoid flaky tests.
• (T261325) Add FindMissingActors script.
• (T262364) shell: Don't blacklist /run/firejail.
• (T263655) NewPagesPager: Ignore nonexistent namespaces.
• Update specialPageAliases and magicWords for Egyptian Arabic (arz).
• (T261347) ParserOutput: don't throw on bad editsection.
• (T232568, CVE-2020-25813) SpecialUserrights: If a viewer lacks hideuser, ignore hidden users.
• (T255918, CVE-2020-25812) SECURITY: Unescaped message used in HTML on Special:Contributions.
• (T256171, CVE-2020-25815) SECURITY: Unescaped message used in HTML within LogEventsList.
• (T258763, CVE-2020-17367, CVE-2020-17368) SECURITY: Prevent invoking firejail's --output functionality.
• (T86738, CVE-2020-25814) SECURITY: mediawiki.jqueryMsg: Sanitize URLs and 'style' attribute.
• (T115888, CVE-2020-25828) SECURITY: mediawiki.js: Escape HTML in mw.message( ... ).parse().
• (T260485, CVE-2020-25869) SECURITY: ActorMigration: Load user from the correct database.
• (T260485, CVE-2020-25869) SECURITY: ensure actor ID from correct wiki is used.
• Add Finnish special page aliases.
• Fix GuzzleHttpRequest request headers.
• Fix description for pruneFileCache.php.
• emptyUserGroup.php: handle more than 5000 users.
• Make ApiSandbox copyable URL absolute.
• (T261087) Add a link from a deleted page to that page's logs.

== MediaWiki 1.35.0-rc.3 ==

=== Changes since MediaWiki 1.35.0-rc.2 ===

• (T258662) mediawiki.visibleTimeout: Update the nextVisibleTimeoutId value.
• Ensure Parsoid doesn't throw when <ref> is used w/o Cite installed.
• Remove maintenance/createCommonPasswordCdb.php.
• (T260468) Increase "sites.site_global_key" to varbinary(64).
• (T183759) Fix shell edge-cases in Windows.
• (T257879) Drop PHP 7.2 support; require 7.3.19.
• (T251661, CVE-2020-25827) SECURITY: User::pingLimiter: add user-global rate limit type.
• (T246991) User: enforce pingLimiter() expiry time.
• (T256831) Rest: Handle Uri constructor exception.
• (T259094) Fix RequestFromGlobalsTest failing in Travis CI.
• (T256831, T261344) Rest: Use try/catch to handle URIs with embedded colon.

== MediaWiki 1.35.0-rc.2 ==

=== Changes since MediaWiki 1.35.0-rc.1 ===

• (T259693) uuid: Fix filenames on Windows.
• Remove Gruntfile.js and package-lock.json from the tarball.
• firejail: Strengthen by copying from Wikimedia's profile.
• (T260059) ResourceLoaderOOUIImageModule: loadOOUIDefinition() may return false.
• (T30162, T245387) The installer supports using a Postgres server running on a custom port other than 5432.
• (T260201) Support private wikis in Parsoid zero configuration mode.
• Fix bad use of |= PHP bit operation where = … || bool is intended.
• (T259212) SpecialBlock: Show error if a block could not be inserted or found.
• (T255842) UserOptionsManager: fix options reset.
• (T258649) WatchAction: avoid unnecessary UPDATEs when expiry is unchanged.
• (T250851) Allow skins to override mediawiki.page.ready initialisation.
• (T250851) mediawiki.page.ready: Allow skins to disable search lazy load.
• (T253135, T255632) Update language in watchlist expiry.
• Use IPset in MWRestrictions::checkIP.
• (T259564) Fix race condition on edit page.
• (T260759) Hide watchlist expiry label in edit form.
• mime: Fix docs of MIME_EXTENSIONS, they're arrays, not space-seperated.
• (T260031) Add application/font-sfnt to MimeMap for ttf files.
• (T259379) WatchedItemStore: Cache single WatchedItems with preexisting expiry.
• Add a maintenance script to create bot passwords.
• (T201269) Add Traditional Chinese zh-hant as fallback for Amis (ami).
• Improve wfParseUrl docs.
• (T251038) Add multi index fields in ImageListPager for unique paginate.
• (T259916) Guard against 'Widget not found' error.

== MediaWiki 1.35.0-rc.1 ==

=== Changes since MediaWiki 1.35.0-rc.0 ===

• (T252136) Fix RecentChanges watchlist filters when WatchlistExpiry is off.
• (T258662) Update time period for watchlist expiry pop-up.
• (T258443) Fix expiry dropdown not getting disabled on edit page.
• (T259398) Add license information for promise-polyfill.
• Remove executable bit from scripts without shebang.
• (T256526) Fix bold of watched items on Special:RecentChangesLinked.
• (T259060) Edit page expiry dropdown should keep state after disabling/enabling.
• (T259009) Translate expiry period in pop-up message for watchlist expiry.
• (T258310) Add watchlist clock icon to RecentChanges.
• (T259362) Permit temporary table writes on replica DB connections.
• (T250214) Add UI support in Special:EditWatchlist for watchlist expiry.
• (T72470) Disable wgLegacyJavaScriptGlobals by default.
• (T130906) Add Edge to MediaWiki:Clearyourcache.
• (T257279) Add mediawiki.ui Less variable deprecation note.
• (T249521) Fixed reassignEdits.php to work with anonymous users.
• (T259448) Fix Circular dependency when creating service in DBLoadBalancerFactory.
• (T257259) Default to using watchlist expiry of old page when moving pages.

== MediaWiki 1.35.0-rc.0 ==

== Upgrading notes for 1.35 == 1.35 requires PHP 7.3.19 or above (up from 7.2.9). (T257879)

1.35 has several database changes since 1.34, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site).

Don't forget to always back up your database before upgrading!

MediaWiki 1.35 is the next LTS after 1.31, and will be supported for around 3 years.

MediaWiki has a lot of both soft and hard deprecations, and code removed. As always, make sure your versions of extensions match the MediaWiki version, and updates may be required to any custom extensions.

See the file UPGRADE for more detailed upgrade instructions, including important information when upgrading from versions prior to 1.11.

Some specific notes for MediaWiki 1.35 upgrades are below:

• (T259685) Zeroconf (zero-configuration) VisualEditor/Parsoid doesn't work using SQLite as the database backend for MediaWiki. This is due to the lack of write concurrency in SQLite. If you wish to use this feature, it is recommended to use MySQL/MariaDB rather than SQLite.

For notes on 1.34.x and older releases, see HISTORY.

=== Configuration changes for system administrators in 1.35 ===

• (T72470) $wgLegacyJavaScriptGlobals is now false by default. This feature will be completely removed in a later MediaWiki release.

==== New configuration ====

• $wgDiffEngine — This can be used to specify the difference engine to use, rather than MediaWiki choosing the first of $wgExternalDiffEngine, wikidiff2, or php that is usable.
• $wgSearchMatchRedirectPreference — This configuration setting controls whether users can set a new preference, search-match-redirect, which decides if search should redirect them to exact matches is available. By default, this is set to false, which maintains the previous behaviour without preference bloat. Change your site's default by setting $wgDefaultUserOptions['search-match-redirect'].
• $wgPoolCounterConf['SpecialContributions'] — Per-user concurrency in the use of SpecialContributions can now be limited by setting this appropriately.
• $wgPasswordPolicy — PasswordCannotBeSubstringInUsername is a new password policy check. Similar to the existing PasswordCannotMatchUsername check, this check ensures that a user's (case-insensitive) password cannot be a part of their username. e.g. password = MyPass, username = ThisUsersPasswordIsMyPass.
• $wgLogos — This new configuration setting combines the now-deprecated $wgLogo and $wgLogoHD settings into a single, associative array. It provides support for a new key, 'wordmark', for setting a horizontal wordmark to show next to the graphical logo. To do this, set 'wordmark' to an array with 'src' set to the path of the wordmark image, and 'width' and 'height' for its dimensions in pixels. $wgLogos inherits the existing support provided by its predecessor settings: '1x' mapping to the path of the logo as a 135x135px raster image (equivalent to $wgLogo), and '1.5x', '2x', and 'svg' operating as before for $wgLogoHD. If $wgLogos is unset, $wgLogo and $wgLogoHD values are read for temporary backwards compatibility. (T232140)
• $wgWatchlistExpiry — (EXPERIMENTAL) This enables the new watchlist expiry feature. The database table (watchlist_expiry) for this is created regardless of this setting, but all other aspects of the expiry feature are controlled by it. Enabling in production is discouraged for the time being. A future MediaWiki 1.35 release will advertise this feature once it is stable.
• $wgWatchlistPurgeRate — This sets the chance of expired watchlist items being purged on each page edit. Only has effect if $wgWatchlistExpiry is true.
• $wgWatchlistExpiryMaxDuration — This is the maximum definite relative duration for watchlist expiries. Only has effect if $wgWatchlistExpiry is true.
• $wgImgAuthPath – This can be used to override the path prefix used when handling img_auth.php requests. (T235357)
• $wgAllowedCorsHeaders — This is a list of headers which can be used in a cross-site API request.
• $wgHTTPMaxTimeout and $wgHTTPMaxConnectTimeout — These allow site administrators to limit the timeouts used by the HTTP client libraries. This only affects callers using HttpRequestFactory and the deprecated wrappers in the Http class.
• $wgCdnMaxageStale — This controls the Cache-Control s-maxage header for page views when PoolCounter lock contention indicates that a stale cache entry should be sent.
• $wgForceHTTPS — This makes the HTTP to HTTPS redirect be unconditional and suppresses various hacks needed to support mixed HTTP/HTTPS wikis. We recommend this be set to true on pure HTTPS wikis.
• $wgCookieSameSite — This setting allows login cookies to be sent with SameSite=None. This is required for cross-site CentralAuth auto-login after Chrome 84.
• $wgUseSameSiteLegacyCookies — This adds a compatibility hack to SameSite=None cookies for browsers which implemented an incompatible draft version of the specification.

==== Changed configuration ====

• $wgResourceLoaderMaxage (T235314) — This configuration array controls the max-age for HTTP caching through the Cache-Control header. It has uses the "versioned" key for urls that do have a version parameter, and the "unversioned" key for urls without a version parameter. The sub keys for "client" and "server" are no longer supported in MediaWiki 1.35.
• $wgEnableOpenSearchSuggest — This boolean variable is deprecated and no longer used. The OpenSearch API is now always enabled.
• $wgAuthManagerConfig and $wgAuthManagerAutoConfig — These can now use the 'services' option in provider specifications.
• $wgVirtualRestConfig['modules']['parsoid'] —
  • The defaults have been updated. If you were relying on the default values, you may need to update your configuration.
  • The 'URL' parameter, previously allowed for backwards-compatibility, has been deprecated. Use 'url' instead.
• $wgXmlDumpSchemaVersion — Default is now set to XML_DUMP_SCHEMA_VERSION_11, so dumps use the new dump format per default. Consumers of XML dumps should not be affected if they ignore any unknown tags they encounter. Also, the format is effectively unchanged for revisions that only contain the main slot. The --schema-version option can be used with the dumpBackup.php script to set the dump format. (T238921)
• $wgParserConf — This configuration is now deprecated. It has been effectively constant since 2008, and is ignored by core code. Configure the ParserFactory service in order to customize the Parser used.
• $wgAutoloadAttemptLowercase — This has been deprecated, and the default value changed to false.
• $wgAllowImageMoving — This configuration setting is now deprecated. Instead, use $wgGroupPermissions; e.g., to revoke sysops' ability to move images use $wgGroupPermissions['sysop']['movefile'] = false.
• $wgAllowImageTag — This configuration is now deprecated; future parsers will not support direct use of the HTML <img> tag in wikitext.
• $wgUseTwoButtonsSearchForm — This has been deprecated. If you maintain a skin that relies on this and wishes to let system administrators change it, you should convert it to a config variable specific to your skin. If you're using it to configure your wiki, you should check individual skins to see whether they have local skin config for the feature and use that.
• $wgPasswordPolicy — The deprecated policy 'PasswordCannotBePopular' has been removed. Use PasswordNotInCommonList instead which covers many more passwords.
• Backwards compatibility for using an associative array (e.g. [ '127.0.0.1' => 'bad-ip' ]) for $wgProxyList has been removed. This was deprecated since 1.30. Please convert these arrays to indexed/sequential ones (e.g. [ '127.0.0.1' ]).
• $wgShellRestrictionMethod — This now defaults to 'autodetect', which will enable sandboxing for shell commands using firejail, if it's installed. To disable restrictions, set it to false.
• $wgLegacyJavaScriptGlobals – This deprecated setting now default to false, instead of true, ahead of its planned removal.

==== Removed configuration ====

• $wgSysopEmailBans — This setting, deprecated in 1.34, was removed. To let sysops block email access, use $wgGroupPermissions['sysop']['blockemail'].
• $wgDBWindowsAuthentication — This setting had no effect anymore after support for SQL Server was removed in 1.34. (T230418)
• $wgProfileOnly — This setting, deprecated in 1.23, was removed. The profiler output should instead be configured via $wgProfiler['output'].
• $wgProfileLimit — This setting, deprecated in 1.25, was removed. Set $wgProfiler['threshold'] instead.
• $wgDebugTimestamps — This setting was removed. It affected the text output produced via $wgDebugComments, if enabled.
• $wgSkipSkin — This setting, deprecated in 1.23, was removed. To disable a skin from being shown, use $wgSkipSkins.
• $wgUseSquid, $wgSquidServers, $wgSquidServersNoPurge, and $wgSquidMaxage — These, deprecated in 1.34, have been removed. Use $wgUseCdn, $wgCdnServers, $wgCdnServersNoPurge, or $wgCdnMaxAge instead.
• $wgDisableCounters — This, deprecated in 1.25, was removed. The feature that it controlled was already removed in 1.26, but the variable remained existent with a value of false for backward-compatibility.
• $wgMaxGeneratedPPNodeCount — This setting was removed. It only affected Preprocessor_DOM, which was deprecated in 1.34 and removed in this release.
• $wgFixArabicUnicode and $wgFixMalayalamUnicode — These, deprecated in 1.33, were removed. The fixes are now always enabled for their respective languages.
• $wgAllowTitlesInSVG — This, unused and deprecated since 1.34, was removed.
• $wgEnablePartialBlocks — This setting, deprecated when it was added in 1.33, was removed. Partial blocks are now always enabled.
• $wgLocalInterwiki — This setting, deprecated in 1.23, has been removed.
• $wgContentHandlerUseDB — This setting, deprecated in 1.34, has been removed.
• $wgMultiContentRevisionSchemaMigrationStage — This setting must no longer be set locally. If the migration stage was set to anything other than SCHEMA_COMPAT_NEW locally, update.php must be run after removing the setting. Usage of the setting in code is deprecated. The setting will be removed completely in 1.36.
• $wgEnableRestAPI — This setting is no longer obeyed by MediaWiki core, and should not be set set locally. Usage of the setting in code is deprecated; it is now set true by default. The setting will be removed completely in 1.36.
• $wgObjectCaches — The 'slaveOnly' option for SqlBagOStuff, deprecated in 1.34, was removed. Use 'replicaOnly' instead.

=== New user-facing features in 1.35 ===

• (T204618) Whitelisted the aria-hidden HTML attribute for all elements in wikitext.
• (T13456) Special:EditPage, Special:PageHistory, Special:PageInfo, and Special:Purge have been created as shortcuts for each action. Special:EditPage/Foo redirects to title=foo&action=edit, with PageHistory, PageInfo, and Purge corresponding to action= history, info, and purge respectively. When linked to, its subpage is used as the target. Otherwise, it displays a basic interface to allow the end user to specify the target manually.
• (T139221) The generated table of contents is now a navigation landmark role for assistive technologies.
• (T245931) interwiki map API doesn't report foreign language if $wgInterwikiMagic=false
• The form at ?action=watch has a new dropdown list to support expiry dates for watchlist items (if $wgWatchlistExpiry is true).

=== New developer features in 1.35 ===

• A Docker based local development develpoment environment configuration is included (T238224) and DEVELOPERS.md has been added with usage documentation and links to further help.
• If CSP is enabled, extensions can now add additional sources using the ContentSecurityPolicy::addDefaultSource, ::addStyleSrc and ::addScriptSrc methods (e.g. $context->getOutput()->getCSP()->addDefaultSrc( 'example.com' ))
• Extensions can now specify classes and namespaces to be autoloaded by the test autoloader, by setting the "TestAutoloadNamespaces" and "TestAutoloadClasses" properties in extension.json. (T196090)
• (T250977) extension.json now allows "SearchMappings" which maps the canonical name of the search engine (used in wgSearchType and wgSearchTypeAlternatives) to a specification using the ObjectFactory specification. This allows extensions to register Search Engines using namespaced classes.
• Added getters for OutputPage's robot, index and follow policies; getRobotPolicy() returns the entire policy as a string in the form <index policy>,<follow policy> while getIndexPolicy() and getFollowPolicy() return their respective policies as a string.
• The ResourceLoaderSiteModulePages and ResourceLoaderSiteStylesModulePages hooks were added to allow changing which wiki pages these modules contain.
• The SkinFactory now allows skins to be specified as an ObjectFactory spec, allowing the construction of skins with services injected.
• ContentHandlerFactory for most ContentHandler static methods. It has been added to the constructors for many classes to improve SOLID / GRASP.
• FileDeleteForm's constructor now accepts a user as the second parameter. Support for not passing a user has also been hard-deprecated and will be removed in 1.36.
• The ParserPreSaveTransformComplete hook was added.
• The ParserBeforePreprocess hook was added.
• The ResourceLoaderSkinModule class now has a "legacy" feature that loads the stylesheets previously part of the "mediawiki.legacy.shared" and "mediawiki.legacy.commonPrint" module. Those modules are now deprecated and no longer loaded by skins. For skins needing to retain these styles, you will need to load these styles via a module using the ResourceLoaderSkinModule class. See Vector and Monobook for examples.
• ParserOutput now has methods addExtraCSPStyleSrc, addExtraCSPDefaultSrc addExtraCSPScriptSrc for parser tags/functions to be able to add sources to the Content Security Policy.
• The HtmlCacheUpdater service was added to unify the logic of purging CDN cache and HTML file cache to simplify callers and make them more consistent.
• The MultiHttpClient code will fallover to non-curl if curl_multi* is blocked.
• Preferences which use HTMLTitlesMultiselectField can make use of MultiTitleFilter class for saving title text to/from article IDs in user preferences.
• OutputPage::addHtmlClasses() was added to allow injecting CSS classes on to the <html> element on page load.
• The SkinAddFooterLinks hook is added to allow extensions to add items to skin footers. Previously this had to be done via SkinTemplateOutputPageBeforeExec. Doing so using that hook is now hard deprecated.
• A new BlockPermissionChecker service was introduced for checking block-related permissions.
• The support of 'database' type of extensions has been added to allow 3d party databases like Percona be used as storage. See T226857, T253248.
• Three new return parameters have been added to the EditPageGetCheckboxesDefinition hook. Handlers of this hook are no longer restricted to defining checkboxes. See the documentation of EditPage::getCheckboxesDefinition() for more details.
• New flag File::RENDER_TMP was added in order to allow File::generateAndSaveThumb and File::trasform to render a thumbnail without saving it to the storage.

=== External library changes in 1.35 ===

==== New external libraries ====

• Added wikimedia/ip-utils 1.0.0.
• Added wikimedia/parsoid 0.12.0.
• Added wikimedia/services 2.0.1.
• Added taylorhakes/promise-polyfill v8.1.3.
• Added vuejs v2.6.11.
• Added vuex v3.1.3.

===== New development-only external libraries =====

• Added doctrine/dbal 2.10.2.
• Added doctrine/sql-formatter 1.1.0.
• Added pimple/pimple 3.3.0.

==== Changed external libraries ====

• pear/mail_mime was upgraded from 1.10.2 to 1.10.8.
• wikimedia/less.php was upgraded from 1.8.0 to 3.0.0.
• Updated oojs from 3.0.0 to 5.0.0.
• Updated OOUI from 0.35.1 to 0.39.3.
• zordius/lightncandy was upgraded from 0.23.0 to 1.2.5.
• Updated jQuery from v3.3.1 to v3.4.1.
• Updated jQuery Migrate from v3.0.1 to v3.1.0.
• Updated wikimedia/assert from 0.2.2 to 0.5.0.
• Updated pear/net_smtp from 1.8.1 from to 1.9.1.
• Updated psr/log from 1.0.2 to 1.1.3.
• Updated jquery.i18n from 1.0.5 to 1.0.7.
• Updated guzzlehttp/guzzle from 6.3.3 to 6.5.4.
• Updated wikimedia/xmp-reader from 0.6.3 to 0.7.0. Fixes error log spam with too-large XMP data, and adds support for GPano tags.
• Updated wikimedia/base-convert from v2.0.0 to v2.0.1.
• Updated composer/semver from 1.5.0 to 1.5.1.
• Updated wikimedia/remex-html from 2.1.0 to 2.2.0.
• Replaced wikimedia/password-blacklist 0.1.4 with wikimedia/common-passwords 0.2.0.

===== Changed development-only external libraries =====

• Updated symfony/yaml from 3.4.28 to 5.0.5.
• Updated nikic/php-parser from 3.1.5 to 4.4.0.
• Updated php-parallel-lint/php-console-highlighter from v0.3.2 to v0.5.
• Updated php-parallel-lint/php-parallel-lint from v0.9.2 to v1.2.0.
• Updated psy/psysh from 0.9.9 to 0.10.4.
• Updated monolog/monolog from 1.24.0 to 1.25.2.
• Upgrade mediawiki-codesniffer from 28.0.0 to 30.0.0.
• Updated composer/spdx-licenses from 1.5.1 to 1.5.3.
• Updated monolog/monolog from 1.25.2 to 1.25.3.
• Updated qunit from 2.9.1 to 2.10.0.

==== Removed external libraries ====

• phpunit/php-invoker (dev-only). Removing this unbreaks development on Windows systems, in exchange for losing time limits in running unit tests.
• The jquery.getAttrs module was removed.

=== Action API changes in 1.35 ===

• The 'suggest' parameter of action=opensearch has been deprecated. The API behaves the same with and without this parameter. It was previously used by $wgEnableOpenSearchSuggest to partially disable the API if set to false. Specifically, it would deny internal frontend requests carrying this parameter, whilst accepting other requests.
• Integer-type parameters are now validated for syntax rather than being interpreted in surprising ways. For example, the following will now return a badinteger error:
  • "1.9" (formerly interpreted as "1")
  • " 1" (formerly interpreted as "1")
  • "1e1" (formerly interpreted as "1" or "10", depending on the PHP version)
  • "1foobar" (formerly interpreted as "1")
  • "foobar" (formerly intepreted as "0") parameters. Ranges should be assumed to be enforced.
• Many user-type parameters now accept a user ID, formatted like "#12345".
• The 'assert' parameter used by all API modules now supports the value 'anon'. When specified, the API will return the 'assertanonfailed' error if the user is logged in.
• action=edit now supports the 'baserevid' parameter for edit conflict detection, as an alternative to 'basetimestamp'. Note that self-conflicts will continue to be ignored if 'basetimestamp' is set, but not if only 'baserevid' is set.
• A new module was added to change the content model of existing pages. Use action=changecontentmodel. Unlike Special:ChangeContentModel, the api module does not work for pages that do not already exist.
• If $wgWatchlistExpiry is true, the following API changes are made:
  • action=watch accepts a new 'expiry' parameter analagous to the expiry accepted by action=userrights, action=block, etc., except it must be no greater than $wgWatchlistExpiryMaxDuration, or an infinity value.
  • action=query&list=watchlistraw returns pages' watchlist expiry dates.
• (T249526) action=login will now return Failed rather than NeedToken on session loss.

=== Action API internal changes in 1.35 ===

• The Action API now uses the Wikimedia\ParamValidator library for parameter validation, which brings some new features and changes. For the most part existing module code should work as it did before, but see subsequent notes for changes.
  • The values for all ApiBase PARAM_* constants have changed. Code should have been using the constants rather than hard-coding the values.
  • Several ApiBase PARAM_* constants have been deprecated, see the in-class documentation for details. Use the equivalent ParamValidator constants instead.
  • The value returned for 'upload'-type parameters has changed from WebRequestUpload to Psr\Http\Message\UploadedFileInterface.
• Validation of 'user'-type parameters is more flexible. PARAM constants exist to specify the type of "user" allowed and to request UserIdentity objects rather than name strings. The default is to accept all types (name, IP, range, and interwiki) that were formerly accepted.
• Maximum limits are no longer ignored in "internal mode".
• The $paramName to ApiBase::handleParamNormalization() should now include the prefix.
• (T245931) meta=siteinfo&siprop=interwikimap no longer reports language or extralanglink when $wgInterwikiMagic is false.

=== Languages updated in 1.35 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• The default targets for the ISBN search from Special:BookSources in English have been updated for better international suppport. They will now be BetterWorldBooks.com, OpenLibrary.org and Worldcat.org.
• (T237672) Changed the Moroccan Arabic language (ary) to the Arabic script.
• (T201269) Added language support for Amis (ami).
• (T248299) Added language support for Inari Sami (smn).
• (T251369) Added language support for Ladin (lld).
• (T251369) Added language support for Seediq (trv), also known as Taroko.

=== Breaking changes in 1.35 ===

• MediaWiki no longer supports PHP 7.2; use PHP 7.3.19+ (T228346, T257879).
• ResourceLoader::getLessVars(), deprecated in 1.32, was removed. Use ResourceLoaderModule::getLessVars() instead.
• The jquery.tabIndex module, deprecated in 1.34, has been removed.
• The mediawiki.RegExp module alias, deprecated in 1.34, was removed. Use the mediawiki.util module instead.
• The easy-deflate.inflate module, unused since 1.32, was removed.
• The easy-deflate.deflate module was removed. Use the mediawiki.deflate module instead.
• The mediawiki.notify module was removed. The mw.notify() shortcut is now available by default, without any dependency.
• (T219604) The "jquery.ui." and "jquery.effects." module aliases, deprecated in 1.34, have been removed. Use "jquery.ui" instead.
• (T235457) The "user.tokens" module has been removed. Use "user.options" instead.
• (T251855) The mw.Map#exists method in JavaScript no longer supports checking multiple keys. This affects mw.config.exists() and mw.user.tokens.exists().
• The internal variable $constructorOptions for the Parser & SpecialPageFactory, exposed only for integration purposes, are now each replaced by a const called CONSTRUCTOR_OPTIONS. This was a breaking change made without deprecation.
• ObjectCache::getWANInstance, deprecated in 1.34, was removed. Use MediaWikiServices::getMainWANObjectCache instead.
• ObjectCache::newWANCacheFromParams, deprecated in 1.34, was removed. Construct WANObjectCache directly instead, or use MediaWikiServices.
• (T231366) The ProfilerOutputDb class and profileinfo.php entry point, deprecated in 1.34, was removed.
• SiteConfiguration->localVHosts, deprecated in 1.25, was removed. Use $wgLocalVirtualHosts instead.
• The $wgContLanguageCode read-only variable was removed. It has been a non-configurable copy of $wgLanguageCode since MW 1.8 (2006). Use $wgLanguageCode directly instead.
• ApiQueryUserInfo::getBlockInfo, deprecated in 1.34, was removed. Use ApiBlockInfoTrait::getBlockDetails instead.
• Password::equals(), deprecated in 1.33, was removed. Use Password::verify().
• QuickTemplate::setRef(), deprecated in 1.31, was removed. Use set().
• The mediawiki.ui.text module, deprecated in 1.28 and unused, was removed.
• AbstractBlock::mReason, deprecated in 1.34, is no longer public.
• The GetBlockedStatus and UserIsHidden, deprecated in 1.34, has been removed. Instead, use the GetUserBlock hook.
• As part of work to replace the Parser, a large number of breaking changes have been made, principally in related methods and properties being removed or made private:
  • disableCache(), deprecated in 1.28.
  • serializeHalfParsedText() and the helpers unserializeHalfParsedText(), isValidHalfParsedText(), and StripState::getSubState() and StripState::merge(), all deprecated in 1.31. The helper functions LinkHolderArray::mergeForeign() and LinkHolderArray::getSubArray() were also removed.
  • getConverterLanguage(), deprecated in 1.32. Use getTargetLanguage() instead.
  • A large set of methods exposed only for historical reasons, deprecated in 1.34, have now been removed or made private:
    • areSubpagesAllowed()
    • armorLinks()
    • createAssocArgs()
    • doAllQuotes()
    • doDoubleUnderscore()
    • doHeadings()
    • doMagicLinks()
    • formatHeadings()
    • getImageParams()
    • getVariableValue()
    • initialiseVariables()
    • makeKnownLinkHolder()
    • maybeDoSubpageLink()
    • parseLinkParameter()
    • replaceExternalLinks()
    • replaceInternalLinks()
    • replaceInternalLinks2()
    • replaceLinkHoldersText().
    • splitWhitespace()
    • stripAltText()
    • testPreprocess()
    • testPst()
    • testSrvus()
  • incrementIncludeSize(), setTransparentTagHook(), replaceTransparentTags(), and $mTransparentTagHooks have been removed without deprecation.
  • The following constants have been made private without deprecation:
    • ::EXT_LINK_ADDR
    • ::EXT_IMAGE_REGEX
    • ::SPACE_NOT_NL
  • The following properties have been removed without deprecation:
    • ::$mDefaultStripList
    • ::$mIncludeCount
    • ::$mRevIdForTs
  • The following properties have been made private without deprecation:
    • ::$mFunctionSynonyms
    • ::$mFunctionTagHooks
    • ::$mStripList
    • ::$mVarCache
    • ::$mImageParams
    • ::$mImageParamsMagicArray
    • ::$mSubstWords
    • ::$mVariables
    • ::$mConf (deprecated in 1.34)
    • ::$mExtLinkBracketedRegex
    • ::$mUrlProtocols
    • ::$mAutonumber
    • ::$mLinkHolders
    • ::$mDefaultSort
    • ::$mTplRedirCache
    • ::$mForceTocPosition
    • ::$mTplDomCache
    • ::$mOutputType
    • ::$mLangLinkLanguages
    • ::$currentRevisionCache
    • ::$mProfiler
    • ::$mLinkRenderer
  • Parser::getTitle() will now throw a TypeError if $mTitle is uninitialized. This use pattern was deprecated in 1.34.
  • ContentHandler::makeParserOptions(), deprecated in 1.32, was removed. Use WikiPage::makeParserOptions() or ParserOptions::newCanonical() instead.
  • The ParserAfterUnstrip hook, believed to be unused, was removed without deprecation.
  • Preprocessor_DOM and related classes, deprecated in 1.34, have been removed. Consequently, the related ParserOptions::getMaxGeneratedPPNodeCount() and ::setMaxGeneratedPPNodeCount() have been removed without deprecation.
  • The support for the old signature for ParserFactory::__construct, which was deprecated in 1.34, has been removed.
  • Parser::getDefaultPreprocessorClass(), deprecated in 1.34, has been removed.
• MediaWikiTestCase::prepareServices(), deprecated in 1.32, has been removed
• The method ContentHandler::getSlotDiffRendererInternal is replaced with ContentHandler::getSlotDiffRendererWithOptions. This breaks consumers which call parent::getSlotDiffRendererInternal (no instances of which are known).
• TextContent::getHighlightHtml, deprecated since 1.24, has been removed. Use TextContent::getHtml instead.
• ExtensionRegistry::load(), deprecated in 1.34, was removed. Instead, use ExtensionRegistry::queue().
• MWMessagePack class, deprecated in 1.34, was removed.
• The cdb.php maintenance script was removed. Use the 'cdb' command from the wikimedia/cdb library instead.
• User::addNewUserLogEntryAutoCreate, deprecated in 1.27, was removed.
• FileBasedSiteLookup class, deprecated in 1.33, was removed.
• The wfGlobalCacheKey global function, deprecated in 1.30, was removed.
• The APCBagOStuff class was removed. MediaWiki requires PHP 7.2+ (support for HHVM was dropped) and these versions of PHP only support apcu. The default "apc" entry in $wgObjectCaches now refers to APCUBagOStuff.
• Database::bufferResults(), deprecated in 1.34, has been removed.
• CannotReplaceActiveServiceException, ContainerDisabledException, DestructibleService, NoSuchServiceException, SalvageableService, ServiceAlreadyDefinedException, ServiceContainer and ServiceDisabledException in the global namespace, deprecated in 1.33, were removed. Use the classes in the MediaWiki\Services namespace instead.
• The following methods in the Interwiki class were removed: ::fetch(), ::isValidInterwiki(), ::invalidateCache(), and ::getAllPrefixes().
• The UsersMultiselectWidget config 'allowArbitrary' is now false by default. To accept arbitrary entries, pass in true for this config.
• OutputPage::parse() and OutputPage::parseInline(), deprecated in 1.32, have been removed. Use ::parseAsContent() or ::parseAsInterface(), as appropriate.
• WikiPage::selectFields, deprecated in 1.31, was removed. Use ::getQueryInfo.
• The remaining static methods for MagicWord, deprecated in 1.32, were removed. These were MagicWord::get(), ::getSubstIDs(), ::getDoubleUnderscoreArray(), ::getVariableIDs(), and ::getCacheTTL(). Instead, use MagicWordFactory (via MediaWikiServices).
• ApiBase::checkTitleUserPermissions no longer accepts a User as the third parameter. Passing a user was deprecated in 1.33.
• Sanitizer::setupAttributeWhitelist() and Sanitizer::attributeWhitelist(), deprecated in 1.34, have been removed. They should not have been public.
• Passing a sequential array as the second parameter to Sanitizer::validateAttributes() has been deprecated; use an associative array where keys are the allowed attributes.
• The $warnCallback parameter to Sanitizer::removeHTMLtags, deprecated since its introduction in 1.28, has been removed.
• SpecialRecentChanges::filterByCategories(), deprecated in 1.31, was removed.
• The ArticleContentViewCustom hook, deprecated in 1.32, was removed.
• AuthManager::callLegacyAuthPlugin, deprecated in 1.33, was removed.
• wfGetMessageCacheStorage was removed without deprecation.
• Title::moveSubpages, deprecated in 1.34, was removed. Use the MovePage class and MovePage::moveSubpages instead.
• Article::doEditContent, deprecated in 1.29, was removed. Instead, use WikiPage::doEditContent.
• CommentStore::newKey, deprecated in 1.31, was removed.
• EditPage::$hookError was changed from public to private.
• Title::isValidMoveOperation, ::moveTo, and ::isValidMoveTarget, deprecated in 1.25, were removed. Use the MovePage class and its methods instead.
• Title::getUserCaseDBKey(), deprecated in 1.33, was removed. Use ::getDBkey().
• StringUtils::explodeMarkup() was removed without deprecation.
• AjaxResponse methods that were unused have been removed without deprecation:
  • checkLastModified
  • loadFromMemcached
  • storeInMemcached
  • setCacheDuration
  • setVary
• ApiDelete::delete and ::deleteFile, both of which were protected methods, have been made private to allow a signature change.
• HistoryPager::revLink, ::curLink, ::lastLink, and ::diffButtons, which had no visibilities defined, have been made private to allow signature changes.
• SpecialNewpages::revisionFromRcResult, which previously was protected, has been made private to allow a signature change.
• DifferenceEngine::$mOldRev and $mNewRev, deprecated for public access in 1.32, have been removed.
• DifferenceEngine::revisionDeleteLink, which was previosuly protected, has been made private to allow a signature change.
• DifferenceEngine::getParserOutput, which is protected, has had a breaking signature change: the second parameter must be a RevisionRecord object, rather than a Revision object.
• WikiPage::setLastEdit, which was previously protected, has been made private to allow a signature change.
• Skin::getSkinNameMessages() deprecated in 1.34, has been removed.
• Skin::escapeSearchLink() deprecated in 1.34, has been removed, use Skin::getSearchLink() instead.
• Skin::shouldPreloadLogo() deprecated in 1.32, has been removed.
• Revision::loadFromId and RevisionStore::loadRevisionFromId have been removed.
• OutputPage::parserOptions doesn't accept an $options parameter anymore.
• MessageCache::getParserOptions previously did not have a visibility set. It has been made private.
• SpecialUndelete::showDiff previously did not have a visibilty set. It hav been made private to allow a signature change.
• The Skin no longer loads the "mediawiki.legacy.shared" or "mediawiki.legacy.commonPrint" modules. The legacy shared styles must now be loaded by the skin explicitly, either inherited via the "mediawiki.skinning.*" modules, or by making your skin's main styles module use the ResourceLoaderSkinModule class with the "legacy" attribute. See Vector and Monobook for examples.
• Passing an ApiMain to the constructor of ApiResult is no longer supported. This was deprecated in 1.25.
• ResourceLoaderWikiModule::invalidateModuleCache has been declared to be @internal as part of a signature change. No known uses exist outside of MediaWiki core.
• The ArticleAfterFetchContentObject hook, deprecated in 1.32, was removed. Use ArticleRevisionViewCustom to control output.
• DatabaseBlock::isValid, deprecated in 1.33, was removed.
• HTMLUserTextField and HTMLUsersMultiselectField previously implied required=true when exists=true. Form fields that use exists=true should also set required=true if they are required.
• In DatabaseUpdater, the following methods are no longer public: dropTable(), modifyTable(), modifyField(), runMaintenance(), copyFile(), appendLine(). In PostgresUpdater, the following methods are no longer public: addPgEnumValue(), addPgIndex(), addPgExtIndex(). This change was made without deprecation due to immediate danger of data corruption and loss, see T157651. Extensions should instead use dropExtensionTable(), modifyExtensionExtensionTable(), modifyExtensionField(), addExtensionUpdate(). The addExtensionUpdate() method can still be used to access any of the protected methods on DatabaseUpdater.
• ResourceLoader no longer provides the (always-true) variables for wgEnableAPI and wgEnableWriteAPI; they were deprecated in MediaWiki 1.31 and removed from the PHP environment in MediaWiki 1.32.
• The wfSetupSession global function, deprecated in 1.27, was removed. Use the persist() method of the right MediaWiki\Session\SessionManager object instead.
• The wfIsHHVM global function, deprecated in 1.34, was removed.
• GenderCache::doTitlesArray no longer accepts string values in its $titles array parameter. Use Title objects (or other LinkTarget) instead.
• Unused CommentStore::MAX_COMMENT_LENGTH has been removed.
• User::checkTemporaryPassword() and User::checkPassword(), deprecated in 1.27, were removed. Use AuthManager instead.
• All constants and class functions now have explicit visibility modifiers. This means, per [[mw:Stable interface policy]], that these should now be considered stable. This also helps MW align with PSR 2 and PSR 12. This was done based on audits of the corpus of skins and extensions hosted in Gerrit. If you find any that you need to be less restrictive (i.e. public or protected), please report these so that we can re-evaluate or suggest workarounds.
• BaseTemplate::msgWiki(), deprecated in 1.33, was removed. Use ->msg() or ->getMsg() instead.
• QuickTemplate::msgWiki(), deprecated in 1.33, was removed. Use ->msg() instead.
• WebInstaller::getErrorBox() and ::getWarningBox(), deprecated in 1.34, were removed. Use Html::errorBox() or ::warningBox() instead.
• SpecialVersion::getExtensionCredits() and SpecialVersion::getSkinCredits() have become private without deprecation.
• As part of the migration to a new hook system (T240307), the following classes now require an additional HookContainer constructor parameter:
  • AuthManager
  • BadFileLookup
  • BlockManager
  • ClassicInterwikiLookup
  • ContentHandlerFactory
  • ContentSecurityPolicy
  • DefaultOptionsManager
  • DerivedPageDataUpdater
  • FullSearchResultWidget
  • HtmlCacheUpdater
  • LanguageFactory
  • LanguageNameUtils
  • LinkRenderer
  • LinkRendererFactory
  • LocalisationCache
  • MagicWordFactory
  • MessageCache
  • NamespaceInfo
  • PageEditStash
  • PageHandlerFactory
  • PageUpdater
  • ParserFactory
  • PermissionManager
  • RevisionStore
  • RevisionStoreFactory
  • Router
  • SearchEngineConfig
  • SearchEngineFactory
  • SearchFormWidget
  • SearchNearMatcher
  • SessionBackend
  • SpecialPageFactory
  • UserNameUtils
  • UserOptionsManager
  • WatchedItemQueryService
  • WatchedItemStore
• The following classes now require setHookContainer() to be called after construction:
  • AuthenticationProvider
  • ResourceLoaderModule
  • SearchEngine
• The parameters to ChronologyProtector::getTouched() and ILBFactory::getChronologyProtectorTouched() were changed without backwards compatibility.
• The deprecated $blacklist parameter to wfIsBadImage() has been removed.
• SpecialBlock::checkUnblockSelf no longer accepts an integer representing an user ID as part of ongoing refactoring of SpecialBlock class.
• User::setInternalPassword() and User::setPassword(), deprecated in 1.27, have been removed. Use User::changeAuthenticationData() instead.
• User::selectFields(), deprecated in 1.31, has been removed. Use User::getQueryInfo() instead.
• The "legacy" serialization type in RESTBagOStuff, deprecated in 1.34, has been removed.
• The populateContentModel.php maintenance script was removed. It has been replaced by the populateContentTables.php script.
• The findHooks.php maintenance script, for the old hooks system, was removed.
• (T257278) Calling MediaWiki\Shell\Command::restrict() will now overwrite any previous restrictions rather than adding to them, making it possible to disable the default restrictions.

=== Deprecations in 1.35 ===

• The PHPUnit4And6Compat class, used to provide compatibility with PHPUnit 4, is now deprecated. MediaWiki support for PHPUnit 4 ended with the removal of HHVM support.
• LockManagerGroup::getDefault() and LockManagerGroup::getAny() are deprecated. They seem to be unused. Just use get() directly, and catch any exception.
• AbstractBlock::getPermissionsError and AbstractBlock::getBlockErrorParams are deprecated. Use BlockErrorFormatter::getMessage instead.
• The IP class is deprecated. Please instead use the Wikimedia\IPUtils class from the new wikimedia/ip-utils library instead. Additionally, the RE_IP_* constants are also deprecated. RE_IP_BYTE can be replaced with a class constant on the IPUtils class, while the others will eventually be made private.
• The following Language methods are deprecated: getFallbackFor, getFallbacksFor, getFallbacksIncludingSiteLanguage. Use the corresponding new methods on the LanguageFallback class: getFirst, getAll, and getAllIncludingSiteLanguage.
• FileJournal::factory is deprecated. Use the constructor directly instead.
• AbstractBlock methods setBlocker(), getBlocker() are deprecated and will become internal implementation of DatabaseBlock.
• Title::countRevisionsBetween has been deprecated and moved into RevisionStore.
• FileBackendGroup::singleton() is deprecated. Use MediaWikiServices instead.
• FileBackendGroup::destroySingleton() is deprecated. Test frameworks should instead reset MediaWikiServices between test runs. (MediaWikiIntegrationTestCase does this automatically.)
• GenderCache::singleton(), deprecated in 1.28, is hard deprecated. Use MediaWikiServices::getGenderCache() instead.
• MediaWikiIntegrationTest::setContentLang() has been deprecated. Use setMwGlobals( 'wgLanguageCode', 'xxx' ) to set a different site language code, or setService( 'ContentLanguage', $myObj ) to set a specific Language object. Service resets and $wgContLang will be handled automatically.
• MediaWikiIntegrationTest::assertType() has been deprecated, as part of the work to move to PHPUnit 8; PHPUnit's assertInternalType() was deprecated, and will be removed in PHPUnit 9. MediaWikiIntegrationTest::assertTypeOrValue(), a wrapper for assertType(), has been removed immediately, without deprecation.
• AbstractBlock::getReason is deprecated, since reasons are actually stored as CommentStoreComments, and getReason returns a string with no caller control over language or formatting. Instead use AbstractBlock::getReasonComment, which returns the CommentStoreComment.
• The global function wfGetRusage() is deprecated and will now always call the getrusage() function without checking for its existence.
• The properties User::mBlock, User::mBlockedby and User::mHideName are deprecated. Instead, use User::getBlock to get the block, then use AbstractBlock::getByName or AbstractBlock::getHideName.Use the GetUserBlock hook to set, unset or modify a block, including hiding or unhiding a user.
• Directly calling the MergeHistory constructor is deprecated. Instead, use the new MergeHistoryFactory class.
• Language::factory() and Language::getParentLanguage() are deprecated, and so is directly calling the Language constructor. Use the new LanguageFactory class instead.
• Language::classFromCode() is deprecated. There is no reason it should be used outside the Language class itself.
• Language::clearCaches() is deprecated. Instead, reset all services and set Language::$mLangObjCache = [].
• The following functions from Language class are deprecated in favour of respective functions in LanguageConverter:
  • autoConvert
  • autoConvertToAllVariants
  • convert
  • convertTitle
  • convertNamespace
  • hasVariants
  • hasVariant
  • convertHtml
  • convertCategoryKey
  • getVariants
  • getPreferredVariant
  • getURLVariant
  • findVariantLink
  • getExtraHashOptions
  • updateConversionTable
• Language::classFromCode() is hard deprecated and should be removed in 1.36
• Language::getConverter() is deprecated and should be removed in 1.36
• Language::MESSAGES_FALLBACKS, Language::STRICT_FALLBACKS were deprecated. Use LanguageFallback::MESSAGES and LanguageFallback::STRICT respectively
• Language::$mLangObjCache is deprecated and should be removed in 1.36. Use MediaWikiServices instead to get a LanguageFactory.
• Language::getMessagesFor(), getMessageFor(), and getMessageKeysFor() are deprecated. Use LocalisationCache's getItem(), getSubitem(), and getSubitemList() methods directly.
• OutputPage::getCSPNonce() is deprecated, use OutputPage::getCSP()->getNonce() instead.
• DerivedPageDataUpdater::prepareUpdate accepted as its second parameter an optional array of options. Specifying the value of the oldrevision key of the array to be a Revision object, rather than a RevisionRecord object, is hard deprecated. The same applies to the options parameter in WikiPage::doEditUpdates.
• Skin::makeI18nUrl() and makeNSUrl() have been deprecated, no longer used.
• Title::countAuthorsBetween and Title::getAuthorsBetween were hard deprecated. Use respective methods in RevisionStore instead.
• Remove deprecated SkinCopyrightFooter &$forContent parameter
• The following Language class static variables have been replaced with constants and deprecated: $mWeekdayMsgs, $mWeekdayAbbrevMsgs, $mMonthMsgs, $mMonthGenMsgs, $mMonthAbbrevMsgs, $mIranianCalendarMonthMsgs, $mHebrewCalendarMonthMsgs, $mHebrewCalendarMonthGenMsgs, $mHijriCalendarMonthMsgs and $durationIntervals.
• As part of dropping security support for IE 6 and IE 7, WebRequest::checkUrlExtension() has been deprecated, and now always returns true.
• The following ApiBase::PARAM_* constants have been deprecated in favor of equivalent ParamValidator constants: PARAM_DFLT, PARAM_ISMULTI, PARAM_TYPE, PARAM_MAX, PARAM_MAX2, PARAM_MIN, PARAM_ALLOW_DUPLICATES, PARAM_DEPRECATED, PARAM_REQUIRED, PARAM_SUBMODULE_MAP, PARAM_SUBMODULE_PARAM_PREFIX, PARAM_ALL, PARAM_EXTRA_NAMESPACES, PARAM_SENSITIVE, PARAM_DEPRECATED_VALUES, PARAM_ISMULTI_LIMIT1, PARAM_ISMULTI_LIMIT2, PARAM_MAX_BYTES, PARAM_MAX_CHARS.
• ApiBase::explodeMultiValue() is deprecated. Use ParamValidator::explodeMultiValue() instead.
• ApiBase::parseMultiValue() is deprecated. No replacement is provided; generally this sort of thing should be handled by fully validating the parameter.
• ApiBase::validateLimit() and ApiBase::validateTimestamp() are deprecated. Use ApiParamValidator::validateValue() with an appropriate settings array instead.
• ContentHandler (use ContentHandlerFactory):
  • getForTitle
  • getForContent
  • getForModelID
  • getContentModels
  • getAllContentFormats
  • protected $handler (not need anymore)
  • cleanupHandlersCache (not need anymore)
• (T212738) The $wgVersion global is deprecated; instead, use MW_VERSION.
• $wgMemc is deprecated, use MediaWikiServices::getLocalServerObjectCache() instead.
• ObjectCache::detectLocalServerCache() is deprecated, instead use MediaWikiServices::getLocalServerObjectCache() or ObjectCache::makeLocalServerCache().
• ImagePage::getImageLimitsFromOptions() is deprecated. Use static function MediaFileTrait::getImageLimitsFromOptions() instead.
• As part of work to replace the Parser, alongside the breaking changes listed above, a large number of deprecations changes been made, to simplify the API or because they will not be supported in replacement:
  • Parser::doBlockLevels() (and BlockLevelPass class has been marked @internal)
  • Parser::setFunctionTagHook()
  • Parser::attributeStripCallback()
  • Parser::fetchTemplate() - use Parser::fetchTemplateAndTitle() instead.
  • Parser::enableOOUI() - use $parser->getOutput()->enableOOUI() instead.
  • LinkHolderArray has been deprecated for public usage and will be internal part of parser.
  • The following parser-related hooks have been deprecated:
    • InternalParseBeforeSanitize Use an alternative hook which doesn't expose internal half-parsed state, like ParserBeforeInternalParse or ParserAfterTidy
    • ParserFetchTemplate Use BeforeParserFetchTemplateAndTitle
    • ParserSectionCreate No replacement; <section> tag wrapping will be done by core in future.
    • BeforeParserrenderImageGallery No replacement; MediaHandler provides for customizable media rendering
    • ParserBeforeTidy Use ParserAfterTidy instead to avoid exposing internal half-parsed state
    • ParserBeforeStrip No replacement; stripping is no longer supported.
    • ParserAfterStrip No replacement; stripping is no longer supported.
  • The accessor/mutator methods Parser::Options(), Parser::OutputType(), and Parser::Title() have been deprecated; use the appropriate Parser::get* or Parser::set* methods instead.
  • Parser::firstCallInit() has been deprecated. The parser is initialized fully on construction and so ::firstCallInit() no longer has any effect when manually invoked.
  • ParserOptions::setAllowExternalImages(), ::setAllowExternalImagesFrom(), and ::setEnableImageWhitelist() have been deprecated. Future parsers will not allow per-parser configuration of image filtering; use site configuration instead.
  • ParserOptions::getTidy() and ParserOptions::setTidy() have been deprecated. These options no longer have any effect.
  • Most methods of MWTidy, except for MWTidy::tidy(), have been deprecated; tidiness is always enabled and not configurable.
  • Version 1 of the parserTests file format has been deprecated. You'll need to update your parser tests to version 2, which uses Remex tidy on all test output by default. Support for parser tests with Remex tidy off will later be removed entirely.
  • $wgParser — This global variable, soft deprecated in 1.32, has now been hard deprecated. Use MediaWikiServices::getInstance()->getParser() instead. (T160811)
• The signature of DefaultPreferencesFactory::__construct has been changed:
  • LanguageConverter $languageConverter has been added. and its usage with old arguments is hard deprecated.
• The public usage of the following properties of LanguageConverter have been deprecated as there is no reason they should be used outside the LanguageConverter class and will be changed from public to private:
  • mLangObj
  • mUcfirst
  • mConvRuleTitle
  • mURLVariant
  • mUserVariant
  • mHeaderVariant
  • mMaxDepth
  • mVarSeparatorPattern changed from public to protected:
  • mTables
• The ArticleEditUpdatesDeleteFromRecentchanges hook has been deprecated. Please use the RecentChange_save hook or similar instead.
• The ArticleEditUpdates hook has been deprecated. Please use the RevisionDataUpdates hook or similar instead.
• The SkinTemplatePreventOtherActiveTabs and SkinTemplateTabAction hooks have been hard deprecated. Please use the SkinTemplateNavigation__Universal hook instead.
• ResourceLoaderFileModule::compileLessFile() has been deprecated, use ResourceLoaderFileModule::compileLessString() instead
• The SquidPurgeClient and SquidPurgeClientPool classes have been deprecated. Use MultiHttpClient or HtmlCacheUpdater instead.
• MimeAnalyzer::getExtensionsForType() and ::getTypesForExtensions() were deprecated in favor of MimeAnalyzer::getExtensionsFromMimeType() and ::getMimeTypesFromExtension(), respectively. The new methods return arrays rather than strings.
• Calling Action::factory and Action constructor with WikiPage has been hard deprecated. Caller must provide an Article instance.
• ApiTestCase::doLogin, soft deprecated in 1.31, was hard deprecated.
• WebRequest::getLimitOffset is hard deprecated. Instead, use ::getLimitOffsetForUser and pass a User object.
• PageArchive::getPreviousRevision is hard deprecated. Instead, use the new ::getPreviousRevisionRecord method.
• PageArchive::getArchivedRevision is hard deprecated. Instead, use the new ::getArchivedRevisionRecord method.
• PageArchive::undelete is hard deprecated. Instead, use ::undeleteAsUser and pass a User object.
• PageArchive::getRevision is hard deprecated.
• EditPage::getBaseRevision was hard deprecated. Instead, use the new ::getExpectedParentRevision method.
• The public variable EditPage::$mBaseRevision was hard deprecated.
• FileDeleteForm previously did not accept a user parameter in its constructor, instead relying on the global $wgUser. A user parameter has been added, and //not// providing a user is deprecated. There are no known callers outside of mediawiki core.
• AuthManager::singleton() has been deprecated. Use MediaWikiServices::getInstance()->getAuthManager() instead.
• ContribsPager::tryToCreateValidRevision is hard deprecated. Instead, use ContribsPager::tryCreatingRevisionRecord.
• The following functions all accept an optional user parameter. Not passing a user is hard deprecated, and support for calling them without passing a user will be removed in 1.36:
  • Title::getNotificationTimestamp (note however that the method is deprecated in its entirely in favor of the new WatchlistNotificationManager service)
  • PatrolLog::record
  • LogEventsList::userCan
  • LogEventsList::userCanBitfield
  • LogEventsList::userCanViewLogType
  • LogPage::addEntry
  • FileDeleteForm::doDelete
  • OldLocalFile::userCan
  • ArchivedFile::userCan
  • File::userCan
• The following functions all accept an optional audience parameter and an optional user parameter. If the audience is FOR_THIS_USER and no user is passed, they fallback to $wgUser. Not passing a user when one is needed is deprecated
  • LogEventsList::getExcludeClause
  • WikiPage::getComment
  • WikiPage::getCreator
  • WikiPage::getUser
  • WikiPage::getUserText
• UploadBase::checkWarnings now accepts a User parameter; not providing a user is soft deprecated.
• Article::insertProtectNullRevision and WikiPage::insertProtectNullRevision were hard deprecated. Instead, use WikiPage::insertNullProtectionRevision.
• Article::doDeleteArticle, Article::doDeleteArticleReal, and WikiPage::doDeleteArticle are all deprecated. Instead, use WikiPage::doDeleteArticleReal.
• Article::getComment is deprecated. Instead, use WikiPage::getComment.
• Article::getCreator is deprecated. Instead, use WikiPage::getCreator.
• Article::updateRevisionOn() and ::updateIfNewerOn(), and WikiPage::updateIfNewerOn() are deprecated. Instead, use WikiPage::updateRevisionOn().
• Article::getUser is deprecated. Instead, use WikiPage::getUser.
• Article::getUserText is deprecated. Instead, use WikiPage::getUserText.
• Article::prepareContentForEdit is hard deprecated. Instead, use WikiPage::prepareContentForEdit.
• WikiPage::prepareContentForEdit previously accepted either a Revision or a RevisionRecord object as its optional second parameter. Passing a Revision is now hard deprecated.
• Article::getUndoContent and WikiPage::getUndoContent are hard deprecated. Instead, use ContentHandler::getUndoContent.
• Passing Revision objects to ContentHandler::getUndoContent is hard deprecated. Instead, pass the associated Content objects, as well as whether the undo is from the current revision.
• Article::doDeleteUpdates and ::doEditUpdates are deprecated. Instead, use WikiPage::doDeleteUpdates and ::doEditUpdates.
• WikiPage::doEditUpdates previously accepted a Revision object as its first parameter. It now accepts RevisionRecord objects, and passing Revision objects is deprecated.
• Article::getRevisionFetched is deprecated. Instead, use the fetchRevisionRecord method, which has been converted from protected to public.
• LocalFileDeleteBatch was migrated to a new constructor signature with the user as the second parameter. Support for the old signature is hard deprecated, and once removed the user parameter will be required. At the same time, a number of file-deletion related methods were updated
  • File::delete is hard deprecated in favor of the new ::deleteFile
  • LocalFile::delete is hard deprecated in favor of the new ::deleteFile
  • LocalFile::deleteOld is hard deprecated in favor of the new ::deleteOldFile
  • ForeignDBFile::delete is hard deprecated in favor of the new ::deleteFile
• File::recordUpload (along with the respective methods in the LocalFile and ForeignDBFile classes) is hard deprecated, and LocalFile::recordUpload2 is soft deprecated. Use the new LocalFile::recordUpload3, which has a different signature and requires that a User parameter is passed.
• The SpecialPageFactory class was moved from the MediaWiki\Special namespace to the MediaWiki\SpecialPage namespace. The old location remains as a deprecated alias.
• Title::userCan, ::quickUserCan, and ::getUserPermissionsErrors, which were deprecated in 1.33, were hard deprecated. Instead, use PermissionManager::userCan, ::quickUserCan, and ::getPermissionErrors.
• All methods of the old SpecialPageFactory, deprecated in 1.32, were hard deprecated. Instead, get a SpecialPageFactory from MediaWikiServices and use its methods.
• User::updateNewtalk now accepts as its optional third parameter a RevisionRecord object; passing a Revision is hard deprecated.
• User::getNewMessageRevisionId and ::getNewMessageLinks were hard deprecated.
• DifferenceEngine::getRevisionHeader now accepts a RevisionRecord as its first parameter; passing a Revision is hard deprecated.
• WikiPage::doDeleteUpdates now accepts as its optional third parameter a RevisionRecord object; passing a Revision is hard deprecated.
• WikiPage::onArticleEdit now accepts as its optional second parameter a RevisionRecord object; passing a Revision is hard deprecated.
• Global $wgUser variable was soft deprecated.
• The Revision class was soft deprecated entirely in 1.31. All methods have now been individually hard deprecated:
  • ::__construct - create MutableRevisionRecord objects instead
  • ::newFromId - use RevisionLookup::getRevisionById instead
  • ::newFromTitle - use RevisionLookup::getRevisionByTitle instead
  • ::newFromPageId - use RevisionStore::getRevisionByPageId instead
  • ::newFromArchiveRow - use RevisionFactory::newRevisionFromArchiveRow
  • ::newFromRow - use RevisionStore::newRevisionFromRow instead
  • ::loadFromPageId - use RevisionStore::getRevisionByPageId instead
  • ::loadFromTitle - use RevisionStore::getRevisionByTitle instead
  • ::loadFromTimestamp - use RevisionStore::getRevisionByTimestamp instead
  • ::getQueryInfo - use RevisionStore::getQueryInfo instead
  • ::getArchiveQueryInfo - use RevisionStore::getArchiveQueryInfo instead
  • ::getParentLengths - use RevisionStore::getRevisionSizes instead
  • ::getRevisionRecord - no replacement
  • ::getId - use RevisionRecord::getId instead
  • ::setId - use MutableRevisionRecord::setId instead
  • ::setUserIdAndName - use MutableRevisionRecord::setUser instead
  • ::getTextId - use SlotRecord::getContentAddress for retrieving an actual content address, or RevisionRecord::hasSameContent to compare content
  • ::getParentId - use RevisionRecord::getParentId instead
  • ::getSize - use RevisionRecord::getSize instead
  • ::getSha1 - use RevisionRecord::getSha1 instead
  • ::getTitle - use RevisionRecord::getPageAsLinkTarget instead
  • ::setTitle - the method was previously a no-op
  • ::getPage - use RevisionRecord::getPageId instead
  • ::getUser - use RevisionRecord::getUser and then User::getId instead
  • ::getUserText - use RevisionRecord::getUser and then User::getName instead
  • ::getComment - use RevisionRecord::getComment instead
  • ::isMinor - use RevisionRecord::isMinor instead
  • ::isUnpatrolled - use RevisionStore::getRcIdIfUnpatrolled instead
  • ::getRecentChange - use RevisionStore::getRecentChange instead
  • ::isDeleted - use RevisionRecord::isDeleted instead
  • ::getVisibility - use RevisionRecord::getVisibility instead
  • ::getContent - use RevisionRecord::getContent instead
  • ::getSerializedData - use SlotRecord::getContent for retrieving a content object, and Content::serialize for the serialized form
  • ::getContentModel - use SlotRecord::getModel instead
  • ::getContentFormat - use SlotRecord::getFormat instead, with a fallback to ContentHandler::getDefaultFormat
  • ::getContentHandler - use ContentHandlerFactory::getContentHandler instead
  • ::getTimestamp - use RevisionRecord::getTimestamp instead
  • ::isCurrent - use RevisionRecord::isCurrent instead
  • ::getPrevious - use RevisionLookup::getPreviousRevision instead
  • ::getNext - use RevisionLookup::getNextRevision instead
  • ::getRevisionText - use RevisionRecord::getContent instead
  • ::compressRevisionText - use SqlBlobStore::compressData instead
  • ::decompressRevisionText - use SqlBlobStore::decompressData instead
  • ::insertOn - use RevisionStore::insertRevisionOn instead
  • ::base36Sha1 - use SlotRecord::base36Sha1 instead
  • ::newNullRevision - use RevisionStore::newNullRevision
  • ::userCan - use RevisionRecord::userCanBitfield instead
  • ::userCanBitfield - use RevisionRecord::userCanBitfield instead
  • ::getTimestampFromId - use RevisionStore::getTimestampFromId instead
  • ::countByPageId - use RevisionStore::countRevisionsByPageId instead
  • ::countByTitle - use RevisionStore::countRevisionsByTitle instead
  • ::userWasLastToEdit - use RevisionStore::userWasLastToEdit instead
  • ::newKnownCurrent - use RevisionStore::getKnownCurrentRevision instead
• The Revision method had a few methods that were previously protected and have been made private. They were:
  • ::getRevisionStore
  • ::getRevisionLookup
  • ::getRevisionFactory
  • ::getBlobStore The $mRecord variable was also changed from protected to private.
• Multiple hooks that include Revision objects were deprecated. The hooks, as well as suitable replacements, are noted below:
  • ArticleRevisionUndeleted (hard deprecated, use the RevisionUndeleted hook)
  • ArticleRollbackComplete (hard deprecated, use the RollbackComplete hook)
  • DiffRevisionTools (hard deprecated, use the DiffTools hook)
  • DiffViewHeader (hard deprecated, use the DifferenceEngineViewHeader hook)
  • HistoryRevisionTools (hard deprecated, use the HistoryTools hook)
  • NewRevisionFromEditComplete (hard deprecated, use the RevisionFromEditComplete hook).
  • PageContentInsertComplete (hard deprecated, use the PageSaveComplete hook)
  • PageContentSaveComplete (hard deprecated, use the PageSaveComplete hook)
  • RevisionInsertComplete (soft deprecated in 1.31, now hard deprecated)
  • TitleMoveCompleting (hard deprecated, use the PageMoveCompleting hook)
  • TitleMoveComplete (hard deprecated, use the PageMoveComplete hook)
  • UndeleteShowRevision (hard deprecated)
• The following RevisionStore methods were deprecated:
  • ::loadRevisionFromTitle
  • ::loadRevisionFromTimestamp
  • ::loadRevisionFromPageId
  • ::listRevisionSizes
• WikiPage::$mLastRevision was changed from protected to private.
• RecentChange::markPatrolled was deprecated. Use ::doMarkPatrolled instead.
• The JobRunner class has been converted to a service class. Direct construction is deprecated, use MediaWikiServices::getJobRunner.
• JobRunner::setLogger has been deprecated, thus using JobRunner as a LoggerAwareInterface is deprecated as well. Rely on the logger passed in the constructor instead.
• LogEventsList::typeAction accepts an optional right to check against as the fourth parameter. Specifying such a right is deprecated.
• SkinTemplate::makeArticleUrlDetails has been deprecated, no longer used.
• Passing a Revision object into CategoryMembershipChange constructor is deprecated. Pass a RevisionRecord instead.
• The "mediawiki.legacy.oldshared" module has been deprecated. Skins and extensions that are using this should copy its necessary CSS rules to their own styles module. CologneBlue and Nostalgia skins serve as examples.
• The "mediawiki.legacy.shared" module has been deprecated. Use the "mediawiki.skinning.*" modules, or ResourceLoaderSkinModule instead.
• The following hooks, soft deprecated in 1.24, have been hard deprecated:
  • APIQueryInfoTokens
  • APIQueryRecentChangesTokens
  • APIQueryRevisionsTokens
  • APIQueryUsersTokens
  • ApiTokensGetTokenTypes
• Calling Action::factory and Action constructor with any Page implementations other than Article is deprecated.
• Action::page property is deprecated for direct access. Use Action::getArticle or Action::getWikiPage instead.
• LESS .background-image-svg() mixin from 'mediawiki.mixins.less' is deprecated and should be removed in 1.36.
• LESS .background-image-svg-quick() mixin from 'mediawiki.mixins.less' is deprecated and should be removed in 1.36.
• The following methods were deprecated:
  • Title::getFirstRevision (hard deprecated)
  • Title::getEarliestRevTime
  • WikiPage::getOldestRevision (hard deprecated)
  • Article::getOldestRevision (hard deprecated) Use RevisionStore::getFirstRevision instead.
• WikiPage::commitRollback and ::doRollback are declared to be internal in preparation for breaking changes. Neither method has any known callers outside of MediaWiki core. Both methods modify an array passed by reference ($resultDetails) - accessing the Revision objects added to that array (using the keys current and target) is also deprecated.
• The following Linker methods previously accepted Revision objects as parameters. They now accept either Revision or RevisionRecord objects. Passing a Revision object is hard deprecated.
  • ::revUserLink
  • ::revUserTools
  • ::revComment
  • ::generateRollback
  • ::getRollbackEditCount
  • ::buildRollbackLink
  • ::getRevDeleteLink
• WikiPage::hasDifferencesOutsideMainSlot previously accepted Revision objects for its two parameters. It now accepts RevisionRecord objects, and passing Revision objects is hard deprecated.
• WikiPage::updateRevisionOn previously accepted Revision objects for its second parameter. It now accepts RevisionRecord objects, and passing Revision objects is hard deprecated.
• The ParserGetVariableValueVarCache hook has been deprecated.
• When using the ParserGetVariableValueSwitch hook, the following unusual uses have been deprecated: modifying the passed $magicWordId or failing to cache the returned value in $variableCache. The related MagicWordwgVariableIDs hook has been deprecated and renamed; use the GetMagicVariableIDs hook instead.
• The following Parser properties have been deprecated:
  • ::$mTagHooks
  • ::$mFunctionHooks
  • ::$mMarkerIndex
  • ::$mFirstCall
  • ::$mPreprocessor
  • ::$mOutput
  • ::$mStripState
  • ::$mLinkID
  • ::$mIncludeSizes
  • ::$mPPNodeCount
  • ::$mGeneratedPPNodeCount
  • ::$mHighestExpansionDepth
  • ::$mDoubleUnderscores
  • ::$mExpensiveFunctionCount
  • ::$mShowToc
  • ::$mUser
  • ::$mOptions
  • ::$mTitle
  • ::$ot
  • ::$mRevisionObject
  • ::$mRevisionId
  • ::$mRevisionTimestamp
  • ::$mRevisionUser
  • ::$mRevisionSize
  • ::$mInputSize
  • ::$mInParse
• LinksUpdate::getRevision and ::setRevision are hard deprecated in favor of the new ::getRevisionRecord and ::setRevisionRecord methods.
• A large number of exposed variables and methods of Article were deprecated as part of its planned removal:
  • Article::$mContext is deprecated; use getContext()/setContext() instead.
  • Article::__get(), ::__set() are hard deprecated, use the WikiPage properties instead.
  • These Article methods were hard deprecated; use their WikiPage equivalents:
    • ::checkFlags,
    • ::checkTouched,
    • ::clearPreparedEdit,
    • ::commitRollback,
    • ::doDeleteArticleReal,
    • ::doEditContent,
    • ::doPurge,
    • ::doRollback,
    • ::doUpdateRestrictions,
    • ::doViewUpdates,
    • ::exists,
    • ::followRedirect,
    • ::getContentHandler,
    • ::getContentModel,
    • ::getContributors,
    • ::getDeletionUpdates,
    • ::getHiddenCategories,
    • ::getId,
    • ::getLatest,
    • ::getLinksTimestamp,
    • ::getMinorEdit,
    • ::getRedirectTarget,
    • ::getRedirectURL,
    • ::getTimestamp,
    • ::getTouched,
    • ::hasViewableContent,
    • ::insertOn,
    • ::insertRedirect,
    • ::insertRedirectEntry,
    • ::isCountable,
    • ::isRedirect,
    • ::loadFromRow,
    • ::loadPageData,
    • ::lockAndGetLatest,
    • ::makeParserOptions,
    • ::pageDataFromId,
    • ::pageDataFromTitle,
    • ::prepareContentForEdit,
    • ::protectDescription,
    • ::protectDescriptionLog,
    • ::replaceSectionAtRev,
    • ::setTimestamp,
    • ::shouldCheckParserCache,
    • ::supportsSections,
    • ::triggerOpportunisticLinksUpdate,
    • ::updateCategoryCounts, and
    • ::updateRedirectOn.
  • Article::generateReason() was hard deprecated; instead, please use WikiPage::getAutoDeleteReason().
  • Article::replaceSectionContent() was hard deprecated, use Article::replaceSectionAtRev() instead.
  • Article::getRevision and WikiPage::getRevision were hard deprecated in favor of the new WikiPage::getRevisionRecord method.
• A new UserNameUtils service was introduced. The following User methods were deprecated in favor of using the new service:
  • isIP
  • isIPRange
  • isValidUserName
  • isUsableName
  • isCreatableName
  • getCanonicalName
• The signature of WikiPage::doDeleteArticleReal was changed to make the user the second parameter, and the suppression option the third parameter. Previously, the third parameter was unused. Using the old signature is hard deprecated.
• ApiQueryRevisions::getRollbackToken, which has been soft deprecated since 1.24, accepted as its third parameter a Revision object. It now accepts a RevisionRecord, and passing a Revision is hard deprecated.
• Passing Article to ParserCache::get() was deprecated
• ParserOptions::newCanonical() with no first parameter, or null as the first parameter, which falls back to using global $wgUser, is hard deprecated.
• Parser::fetchCurrentRevisionOfTitle, ::statelessFetchRevision, and ::getRevisionObject were hard deprecated in favor of the new ::fetchCurrentRevisionRecordOfTitle, ::statelessFetchRevisionRecord, and ::getRevisionRecordObject methods respectively.
• ParserOptions::getCurrentRevisionCallback and ::setCurrentRevisionCallback were hard deprecated in favor of the new ::getCurrentRevisionRecordCallback and ::setCurrentRevisionRecordCallback methods respectively.
• Parser::statelessFetchTemplate returns an array; accessing the Revision object returned (via the revision key to the array) is deprecated. Instead, use revision-record to retrieve the equivalent RevisionRecord.
• WikiPage::doEditContent returns an array, and PageUpdater::getStatus returns a Status object with an array value. For both of those arrays, accessing the Revision object returned (via the revision key to the array) is deprecated. Instead, use revision-record to retrieve the equivalent RevisionRecord.
• Page interface was deprecated. Use Article or WikiPage instead.
• The following DatabaseBlock methods are deprecated because they are no longer needed in core: chooseBlock, fromMaster, deleteIfExpired.
• wfGetScriptUrl() was deprecated. The script URL should be configured rather than detected. wfScript() can be used to get a configured script URL.
• Action::factory() with null $action argument is hard deprecated
• The following methods of the User class were deprecated: getDefaultOptions, getDefaultOption, getOptions, getOption, getBoolOption, getIntOption, setOption, listOptionKinds, getOptionKinds, resetOptions. Use corresponding methods in UserOptionsLookup or UserOptionsManager service classes instead.
• UserRetrieveNewTalks hook was deprecated without replacement.
• User::getNewtalk and ::setNewtalk were hard deprecated. Use service TalkPageNotificationManager instead.
• EditPage::matchSpamRegex and ::matchSummarySpamRegex were hard deprecated in favor of the new SpamChecker service.
• Title::getNotificationTimestamp, User::clearNotification, and User::clearAllNotifications were deprecated in favor of the new WatchlistNotificationManager service.
• SpecialPage::setListed() and SpecialPage::listed() were deprecated. Subclass UnlistedSpecialPage to set listed as false, and use SpecialPage::isListed() to get the value.
• CategoryPage::getCategoryViewerClass() and ::setCategoryViewerClass() were deprecated.
• MWHttpRequest and its subclasses PhpHttpRequest, CurlHttpRequest and GuzzleHttpRequest now require the timeout and connectTimeout options to always be specified, otherwise a deprecation warning will be raised. Most callers should use HttpRequestFactory which always sets these options.
• Linker::normaliseSpecialPage() has been deprecated, instead make use of LinkRenderer::normalizeTarget().
• SkinTemplate::getPersonalToolsList() was soft deprecated.
• ChangeTags::truncateTagDescription() has been deprecated.
• The following methods of the User class are deprecated: getGroups, getGroupMemberships, getEffectiveGroups, getAutomaticGroups, addGroup, removeGroup, getFormerGroups, getAllGroups, getImplicitGroups, addAutopromoteOnceGroups. Use the new UserGroupManager service instead.
• The following methods of the UserGroupMembership class were deprecated: selectFields, getMembershipsForUser, getMembership, insert, delete, newFromRow, initFromRow, purgeExpired. Use the new UserGroupManager service instead.
• wfWaitForSlaves() has been hard deprecated. Use LBFactory::waitForReplication instead. It was soft deprecated in 1.27.
• BaseTemplate::getAfterPortlet and ::renderAfterPortlet have been deprecated in favor of the Skin::getAfterPortlet method. Skin::getAfterPortlet does not wrap the result in a div, callers are responsible for that. The hook BaseTemplateAfterPortlet, called by both methods has been deprecated as well and is replaced by SkinAfterPortlet.
• Autopromote class has been soft deprecated and it's methods moved into UserGroupManager.
• SkinTemplateBuildNavUrlsNav_urlsAfterPermalink hook has been deprecated. Use SidebarBeforeOutput hook and get the revision id from the OutputPage object.
• BaseTemplate::getToolbox() method has been soft deprecated. The toolbox data is now available in a sidebar data array which you can get from any class that's extending QuickTemplate class. The hook associated with this method, BaseTemplateToolbox, has been hard deprecated. To add items to the toolbox, use SidebarBeforeOutput hook instead.
• The SkinTemplateOutputPageBeforeExec hook is deprecated. The page [[mw:Manual:Hooks/SkinTemplateOutputPageBeforeExec]] and T60137 for recommendations for alternative approaches based on how developers previously used this hook.
• SkinTemplateToolboxEnd hook has been deprecated. Use SidebarBeforeOutput hook instead.
• Using Skin::addToBodyAttributes() method to add body attributes has been deprecated. Use OutputPageBodyAttributes hook instead.
• Installer::getDBTypes has been hard deprecated in favor of InstallerDBSupport::getDatabases
• The hooks BeforeHttpsRedirect, CanIPUseHTTPS and UserRequiresHTTPS were deprecated, as part of a long-term plan to remove support for mixed HTTP/HTTPS wikis.
• Skin::generateDebugHTML() has been hard deprecated. Call MWDebug::getHTMLDebugLog() directly.
• ExternalStoreDB::getSlave(), soft deprecated in 1.34, was hard deprecated. Use ExternalStoreDB::getReplica() instead.
• Less variables in mediawiki.ui/variables.less file that don't follow the standard variable naming scheme (compare WikimediaUI Base) including `@colorGray* variables have been deprecated. New variables are in place and aliases have been set. Replace occurrences and use the new variables instead.

=== Other changes in 1.35 ===

• A new maintenance script is added (purgeExpiredWatchlistItems.php) with which to delete expired watchlist items. These items will also be deleted during wiki editing if $wgWatchlistPurgeRate is > 0. This maintenance script only has effect if $wgWatchlistExpiry is true. It is recommended that a cronjob or similar be set up to run it at least daily.
• Title::purgeSquid is deprecated. Use MediaWikiServices::getHtmlCacheUpdater.
• SpecialVersion::getExtLicenseFileName() has been deprecated, use MediaWiki\ExtensionInfo::getLicenseFileNames() instead.
• SpecialVersion::getExtAuthorsFileName() has been deprecated, use MediaWiki\ExtensionInfo::getAuthorsFileName() instead.
• Migration to the new content storage schema is complete, all backwards compatibility code and duplication in the database have been removed. The old schema was a 1:1 relationship modeled by revision.text_id -> text.old_id. The new schema is a n:m relationship, revision.rev_id <- slots.slot_revision_id|slots.slot_content_id -> content.content_id|content.content_address -> text.old_id. The same applies to the archive table. The following fields were removed:
  • revision.rev_text_id, replaced by content.content_address
  • revision.rev_content_model, replaced by content.content_model, referencing content_models.model_id
  • revision.rev_content_format, replaced by automatic detecting in ContentHandler
  • archive.ar_text_id, replaced by content.content_address
  • archive.ar_content_model, replaced by content.content_model, referencing content_models.model_id
  • archive.ar_content_format, replaced by automatic detecting in ContentHandler
• Migration to normalized storage of edit comments and user names is progressing. The following fields were unused and have been removed:
  • revision.rev_comment, replaced by rev_comment_id referencing comment.comment_id.
  • revision.rev_user and rev_user_text, replaced by rev_actor referencing actor.actor_id. Note that archive.ar_user, archive.ar_user_text, and archive.ar_comment had already been removed in previous releases.
• The printableversion has been marked as deprecated per T167956.
• (T30162, T245387) The installer supports using a Postgres server running on a custom port other than 5432.

= MediaWiki 1.34 =

== MediaWiki 1.34.4 ==

This is a maintenance release of the Mediawiki 1.34 branch.

=== Changes since MediaWiki 1.34.3 ===

• Fixed issue relating to backporting of changes for T260485.

== MediaWiki 1.34.3 ==

This is a security and maintenance release of the MediaWiki 1.34 branch.

=== Changes since MediaWiki 1.34.2 ===

• In the web installer, use secure session cookies.
• Make UsersPager::requestedGroup public.
• (T257407) Split patch-drop-user-fields.sql into patch per table.
• (T257356) Split patch-drop-comment-fields.sql into patch per table.
• (T257997) Undeprecate WebInstaller::getInfoBox().
• Added $wgForceHTTPS, which makes the HTTP to HTTPS redirect be unconditional and suppresses various hacks needed to support mixed HTTP/HTTPS wikis. We recommend this be set to true on pure HTTPS wikis.
• Added $wgCookieSameSite, which allows login cookies to be sent with SameSite=None. This is required for cross-site CentralAuth autologin after Chrome 84.
• Added $wgUseSameSiteLegacyCookies, which adds a compatibility hack to SameSite=None cookies for browsers which implemented an incompatible draft version of the specification.
• (T257207) shell: Expand documentation in firejail.profile.
• (T246135) Give the "remember me" checkbox a specific CSS class so skins like Minerva can only hide that checkbox.
• (T256287) rdbms: improve DBConnRef domain selection exception message.
• (T248191, T259123) phpunit: Acknowledge known dberror from SpecialPageFatalTest.
• (T256394, T259123) Cleanup up excess commit() call in LocalRepoTest.
• Fix runBatchedQuery.php for no result from select.
• (T130906) Add Edge to MediaWiki:Clearyourcache.
• (T249521) reassignEdits: Update script to use User::newFromName for anon users.
• (T172060) GlobalFunctions: Use php_uname instead of posix_uname.
• Use IPset in MWRestrictions::checkIP.
• (T260031) Add application/font-sfnt to MimeMap for ttf files.
• shell: Make ->restrict( RESTRICT_NONE ) actually work.
• (T183759) Fixes shell edge-cases in Windows.
• (T258390) Add CentralIdLookup::factoryNonLocal().
• (T246991) User: Fix pingLimiter() to use makeGlobalKey() for global rate limits.
• (T232568, CVE-2020-25813) SECURITY: Special:UserRights exposes the existence of hidden users.
• (T251661, CVE-2020-25827) SECURITY: User::pingLimiter: add user-global rate limit type.
• (T246991) User: enforce pingLimiter() expiry time.
• (T260232) don't include null page ids in query list for category dumps.
• (T251506) Sanitizer: Truncate IDs to a reasonable length.
• (T262900) Fix failure of rebuildLocalisationCache.php due to RL hook.
• Explicitly wrap some XML calls in libxml_disable_entity_loader().
• (T263455 T247285) Set EnableJavaScriptTest to true in includes/DevelopmentSettings.php.
• (T232568, CVE-2020-25813) SECURITY: SpecialUserrights: If a viewer lacks hideuser, ignore hidden users.
• (T255918, CVE-2020-25812) SECURITY: Unescaped message used in HTML on Special:Contributions.
• (T256171, CVE-2020-25815) SECURITY: Unescaped message used in HTML within LogEventsList.
• (T258763, CVE-2020-17367, CVE-2020-17368) SECURITY: Prevent invoking firejail's --output functionality.
• (T86738, CVE-2020-25814) SECURITY: mediawiki.jqueryMsg: Sanitize URLs and 'style' attribute.
• (T115888, CVE-2020-25828) SECURITY: mediawiki.js: Escape HTML in mw.message( ... ).parse().
• (T260485, CVE-2020-25869) SECURITY: ActorMigration: Load user from the correct database.
• (T260485, CVE-2020-25869) SECURITY: ensure actor ID from correct wiki is used.

== MediaWiki 1.34.2 ==

This is a security and maintenance release of the MediaWiki 1.34 branch.

=== Changes since MediaWiki 1.34.1 ===

• (T247017) PasswordReset performance improvements.
• The MultiHttpClient code will fallover to non-curl if curl_multi* is blocked.
• (T250568) Work around change in SimpleXMLElement behavior introduced in PHP 7.3.17.
• (T251789) Let $wgResourceLoaderMaxQueryLength=-1 fallback to default.
• Remove some rotten and out of date documentation.
• (T252311) Improvements to some older SQLite update patches.
• (T240307) Minor fixes to extension.schema.v2.json and extension.schema.v1.json.
• (T238043) cleanupUsersWithNoId.php: Handle missing fields.
• (T199474) Set rc_patrolled to 2 for autopatrolled changes in rebuildrecentchanges.php.
• (T229461) Update the change_tag table in rebuildrecentchanges.php.
• (T249730) Password Reset Updates.
• (T234450) Per-user concurrency in SpecialContributions can now be limited by setting $wgPoolCounterConf['SpecialContributions'] appropriately.
• (T248947) SECURITY: img_auth.php may leak private extension images into the public cache.

== MediaWiki 1.34.1 ==

This is a security and maintenance release of the MediaWiki 1.34 branch.

=== Changes since MediaWiki 1.34.0 ===

• (T211450) User: better error message when getActorId fails.
• (T241340) Don't redefine MW_ENTRY_POINT in thumb.php if already defined.
• (T236444) User: Allow newSystemUser() to create over anonymous actors.
• (T238483) Fix NewPagesPager "hide registered users" option.
• (T245072) mediawiki.language: Rename languageData back to languageNames.
• Use proper SemVer comparison in CheckComposerLockUpToDate.
• (T212738) Add the MW_VERSION constant, global $wgVersion is soft deprecated.
• (T246127) Fix error when initialising updateCollation.php.
• Update comment about PHP versions supported by The PHP Group.
• (T247215) Fix output of RecountCategories::doWork().
• Add check for page existence to view.php maintenance script.
• (T245149) Fix fetching login token from action=query&meta=tokens on private wikis.
• (T236509) SECURITY: Fix HTML escaping in UserGroupMembership::getLink().
• (T232932) SECURITY: User content can redirect the logout button to different URL.
• (T246602) SECURITY: jquery.makeCollapsible allows applying event handler to any CSS selector.

== MediaWiki 1.34.0 ==

=== Changes since MediaWiki 1.34.0-rc.1 ===

• $wgDiffEngine (T237049) – This configuration can be used to specify which difference engine to use. MediaWiki continues to default to automatically choosing the first of $wgExternalDiffEngine, wikidiff2, or php that is usable.
• (T231866) SqlBlobStore no longer needs Language object.
• (T236735) WikiExporter: Remove unnecessary check for SCHEMA_COMPAT_WRITE_OLD flag.
• (T231673) Set MCR migration stage to SCHEMA_COMPAT_NEW.
• (T229601) Make sure DBLoadBalancerFactory service is not disabled.
• (T232866) Fix support for HTTP/2 in MultiHttpClient.
• (T231866) LocalisationCache: Don't instantiate ResourceLoader.
• (T227461) Stop calling deprecated Redis delete functions.
• (T239561) Mark options as requiring parameters in addSite.php.
• (T232866) Mimic CURLOPT_POST in GuzzleHttpRequest.
• (T239734) Replace deprecated lSize with lLen in Redis code.
• (T192134) SECURITY: Do not allow user scripts on Special:PasswordReset.
• (T239428) ApiEditPage: Test for bad redirect targets.
• (T233342) rdbms: Log debug message traces as 'exception.trace' instead of 'trace'.
• (T226751) media: Log and fail gracefully on invalid EXIF coordinates.
• (T240924) NewPagesPager: Fix namespace query conditions.
• (T212067) Tests for an old PHP bug in parse_url.

== MediaWiki 1.34.0-rc.1 ==

=== Changes since MediaWiki 1.34.0-rc.0 ===

• (T231742) rdbms: Restore debug toolbar "Queries" feature.
• (T231366) The ProfilerOutputDb class, 'profiling' table, and profileinfo.php entry point had been deprecated.
• (T234361) localisation: Add debug message for backend of MessageCache.
• (T234361) session: Add debug message for the used store class.
• (T235559) Fix example Kask configuration in RESTBagOStuff class comment.
• (T235137) Don't apply styling for Special:Contributions on other pages.
• Upgrade mediawiki-codesniffer from 26.0.0 to 28.0.0 (dev-only).
• (T219604) The "jquery.ui." and "jquery.effects." modules are now deprecated as aliases for the "jquery.ui" module.
• (T235392) Deprecate setting Parser::mTitle to null.
• Supporting commits for T235392 were also backported to prevent divergence from master (MediaWiki 1.35).
• (T234581) The 'jquery.tabIndex' module is deprecated.
• Fix docs for GetUserBlock hooks.
• Parser: Hard deprecate getConverterLanguage.
• (T236810) A number of public methods of Parser were exposed only for historical reasons and have been deprecated: doMagicLinks, doDoubleUnderscore, doHeadings, doAllQuotes, replaceExternalLinks, replaceInternalLinks, replaceInternalLinks2, getVariableValue, initialiseVariables, formatHeadings, testPst, testPreprocess, testSrvus, areSubpagesAllowed, maybeDoSubpageLink, splitWhitespace, createAssocArgs, armorLinks, makeKnownLinkHolder, getImageParams, parseLinkParameter, stripAltText, replaceLinkHolders, replaceLinkHoldersText, armorLinks, makeKnownLinkHolder, getImageParams, parseLinkParameter, stripAltText.
• (T30798) $wgServer must now always be set in LocalSettings.php. This is most likely the case already for any wiki installed after 1.18. The autodetection system was informally deprecated since 1.18 and vulnerable to cache poisoning attacks. Older wikis may need to update their LocalSettings.php file.
• (T232169) Hard deprecate $wgSysopEmailBans.
• (T236628) Fix for ArticleRevisionViewCustom hook in DifferenceEngine.php.
• (T181658) Do not insert page titles into querycache.qc_value.
• ParamValidator has been flagged as unstable.
• Hard deprecate Parser::disableCache().

== MediaWiki 1.34.0-rc.0 ==

== Upgrading notes for 1.34 == 1.34 has several database changes since 1.33, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site).

Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed upgrade instructions, including important information when upgrading from versions prior to 1.11.

Some specific notes for MediaWiki 1.34 upgrades are below:

• MediaWiki now requires PHP 7.2.9 or above.
• MediaWiki no longer supports HHVM.

For notes on 1.33.x and older releases, see HISTORY.

=== Configuration changes for system administrators in 1.34 ===

In an effort to enforce best practices for passwords, MediaWiki will now warn users, and suggest that they change their password, if it is in the list of 100,000 commonly used passwords that are considered bad passwords. If you want to disable this for your users, please add the following to your local settings:

$wgPasswordPolicy['policies']['default']['PasswordNotInLargeBlacklist'] = false;

==== New configuration ====

• $wgAllowExternalReqID (T201409) - This configuration setting controls whether Mediawiki accepts the request ID set by the incoming request via the X-Request-Id header. If set to true, that value will be used throughout the code as the request identificator. Otherwise, the sent header will be ignored and the request ID will either be taken from Apache's mod_unique module or will be generated by Mediawiki itself (depending on the set-up).
• $wgEnableSpecialMute (T218265) - This configuration controls whether Special:Mute is available and whether to include a link to it on emails originating from Special:Email.
• editmyuserjsredirect user right – users without this right now cannot edit JS redirects in their userspace unless the target of the redirect is also in their userspace. By default, this right is given to everyone.
• (T226733) Add rate limiter to Special:ConfirmEmail.
• $wgDiffEngine (T237049) – This configuration can be used to specify which difference engine to use. MediaWiki continues to default to automatically choosing the first of $wgExternalDiffEngine, wikidiff2, or php that is usable.

==== Changed configuration ====

• $wgUseCdn, $wgCdnServers, $wgCdnServersNoPurge, and $wgCdnMaxAge – These four CDN-related config variables have been renamed from being specific to Squid – they were previously $wgUseSquid, $wgSquidServers, $wgSquidServersNoPurge, and $wgSquidMaxage respectively. This aligns them with the related existing variable $wgCdnMaxageLagged. The previous configuration variable names are deprecated, but will be used as the fall back if they are still set. Note that wgSquidPurgeUseHostHeader has not been renamed, as it is deprecated.
• (T27707) File type checks for image uploads have been relaxed to allow files containing some HTML markup in metadata. As a result, the $wgAllowTitlesInSVG setting is no longer applied and is now always true. Note that MSIE 7 may still be able to misinterpret certain malformed PNG files as HTML.
• (T30798) $wgServer must now always be set in LocalSettings.php. This is most likely the case already for any wiki installed after 1.18. The autodetection system was informally deprecated since 1.18 and vulnerable to cache poisoning attacks. Older wikis may need to update their LocalSettings.php file.
• Introduced $wgVerifyMimeTypeIE to allow disabling the MSIE 6/7 file type detection heuristic on upload, which is more conservative than the checks that were changed above.
• $wgExternalDiffEngine — Setting this to a string value of 'wikidiff', 'wikidiff2', or 'wikidiff3' will no longer work. This legacy behaviour was deprecated in MediaWiki 1.27, 1.32, and 1.27, respectively.
• $wgSkipSkin — Setting this instead of $wgSkipSkins, deprecated in 1.23, is now hard-deprecated.
• $wgLocalInterwiki — Setting this instead of $wgLocalInterwikis, deprecated in 1.23, is now hard-deprecated.
• $wgProfileOnly — Setting this, deprecated in 1.23, is now hard-deprecated. Instead, set the log file in $wgDebugLogGroups['profileoutput'].
• $wgProxyList — Setting this to an array with IP addresses in the array keys, which was deprecated in 1.30, no longer works. Instead, $wgProxyList should be an array with IP addresses as the values, or a string path to a file containing one IP address per line.
• $wgCookieSetOnAutoblock and $wgCookieSetOnIpBlock are now enabled by default.

==== Removed configuration ====

• $wgWikiDiff2MovedParagraphDetectionCutoff — If you still want a custom change size threshold, please specify in php.ini, using the configuration variable wikidiff2.moved_paragraph_detection_cutoff.
• $wgUseESI - This experimental setting, deprecated in 1.33, is now removed.
• $wgDebugPrintHttpHeaders - The default of including HTTP headers in the debug log channel is no longer configurable. The debug log itself remains configurable via $wgDebugLogFile.
• $wgMsgCacheExpiry - The MessageCache uses 24 hours as the expiry for values stored in WANObjectCache. This is no longer configurable.
• $wgPasswordSalt – This setting, used for migrating exceptionally old, insecure password setups and deprecated since 1.24, is now removed.
• $wgDBOracleDRCP - If you must use persistent connections, set DBO_PERSISTENT in the 'flags' field for servers in $wgDBServers (or $wgLBFactoryConf).
• $wgMemCachedDebug - Set the cache "debug" field in $wgObjectCaches instead.
• $wgActorTableSchemaMigrationStage has been removed. Extension code for MediaWiki 1.31+ finding it unset should treat it as being SCHEMA_COMPAT_NEW.

=== New user-facing features in 1.34 ===

• Special:Mute has been added as a quick way for users to block unwanted emails from other users originating from Special:EmailUser.
• (T207577) Special:NewSection has been created as a shortcut to creating a new section on a page. When linked to, its subpage is used as the target ([[Special:NewSection/Test]] redirects to creating a new section in "Test"). Otherwise, it displays a basic interface to allow the end user to specify the target manually.
• (T220447) Special:Contributions/newbies has been removed for performance and usefulness reasons. Use Special:RecentChanges?userExpLevel=newcomer instead.
• Special:NewFiles/newbies has been removed for performance and usefulness reasons. Use Special:RecentChanges?userExpLevel=newcomer&namespace=6 instead.

=== New developer features in 1.34 ===

• The ImgAuthModifyHeaders hook was added to img_auth.php to allow modification of headers in private wikis.
• Language::formatTimePeriod now supports the new 'avoidhours' option to output strings like "5 days ago" instead of "5 days 13 hours ago".
• (T220163) Added SpecialMuteModifyFormFields hook to allow extensions to add fields to Special:Mute.
• (T100896) Skin authors can define custom OOUI themes using OOUIThemePaths. See https://www.mediawiki.org/wiki/OOUI/Themes for details.
• (T229035) The GetUserBlock hook was added. Use this instead of GetBlockedStatus.
• ObjectFactory is available as a service. When used as a service, the object specs can now specify needed DI services.
• (T222388) Special pages can now be specified as an ObjectFactory spec, allowing the construction of special pages that require services to be injected in their constructor.
• (T222388) API modules can now be specified as an ObjectFactory spec, allowing the construction of modules that require services to be injected in their constructor.
• (T117736) The function signature of SpecialContributions::getForm::filters has changed. It now expects definitions of additional filter fields as array rather than string.

=== External library changes in 1.34 ===

==== Changed external libraries ====

• Updated Mustache from 1.0.0 to v3.0.1.
• Updated OOUI from v0.31.3 to v0.34.0.
• Updated OOjs from v2.2.2 to v3.0.0.
• Updated composer/semver from 1.4.2 to 1.5.0.
• Updated composer/spdx-licenses from 1.4.0 to 1.5.1 (dev-only).
• Updated mediawiki/codesniffer from 25.0.0 to 28.0.0 (dev-only).
• Updated cssjanus/cssjanus from 1.2.1 to 1.3.0.
• Updated wikimedia/at-ease from 1.2.0 to 2.0.0.
• Updated wikimedia/remex-html from 2.0.1 to 2.1.0.
• Updated monolog/monolog from 1.22.1 to 1.24.0 (dev-only).
• Updated wikimedia/object-factory from 1.0.0 to 2.1.0.
• Updated wikimedia/timestamp from 2.2.0 to 3.0.0.
• Updated wikimedia/xmp-reader from 0.6.2 to 0.6.3.
• Updated mediawiki/mediawiki-phan-config from 0.6.0 to 0.6.1 (dev-only).
• Updated wikimedia/avro from 1.8.0 to 1.9.0 (dev-only).

==== Removed external libraries ====

• The jquery.async module, deprecated in 1.33, was removed.

=== Bug fixes in 1.34 ===

• (T222529) If a log entry or page revision is recorded in the database with an empty username, attempting to display it will log an error and return a "no username available" to the user instead of silently displaying nothing or invalid links.

=== Action API changes in 1.34 ===

• The 'recenteditcount' response property from action=query list=allusers, deprecated in 1.25, has been removed.
• (T60993) action=query list=filearchive, list=alldeletedrevisions and prop=deletedrevisions no longer require the 'deletedhistory' user right.
• In the response to queries that use 'prop=imageinfo', entries for non-existing files (indicated by the 'filemissing' field) now omit the following fields, since they are meaningless in this context: 'timestamp', 'userhidden', 'user', 'userid', 'anon', 'size', 'width', 'height', 'pagecount', 'duration', 'commenthidden', 'parsedcomment', 'comment', 'thumburl', 'thumbwidth', 'thumbheight', 'thumbmime', 'thumberror', 'url', 'sha1', 'metadata', 'extmetadata', 'commonmetadata', 'mime', 'mediadtype', 'bitdepth'. Clients that process these fields should first check if 'filemissing' is set. Fields that are supported even if the file is missing include: 'canonicaltitle', 'archivename' (deleted files only), 'descriptionurl', 'descriptionshorturl'.
• The 'blockexpiry' result property in list=users and list=allusers will now be returned in the same format used by the rest of the API: ISO 8601 for expiring blocks, and "infinite" for non-expiring blocks.

=== Action API internal changes in 1.34 ===

• The exception thrown in ApiModuleManager::getModule has been changed from an MWException to an UnexpectedValueException, thrown by ObjectFactory. ApiModuleManager::getModule now also throws InvalidArgumentExceptions when ObjectFactory is presented with an invalid spec or incorrectly constructed objects.
• Added ApiQueryBlockInfoTrait.

=== Languages updated in 1.34 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T152908) Added language support for N'Ko (nqo).

=== Breaking changes in 1.34 ===

• The global functions wfSuppressWarnings and wfRestoreWarnings, deprecated in 1.26, have been removed. Use Wikimedia\AtEase\AtEase::suppressWarnings() and Wikimedia\AtEase\AtEase::restoreWarnings() directly.
• Preferences class, deprecated in 1.31, has been removed.
• The following parts of code, deprecated in 1.32, were removed in favor of built-in PHP functions:
  • CryptRand class
  • CryptRand service
  • Functions of the MWCryptRand class: singleton(), wasStrong() and generate().
• Various Special Page PHP Classes were renamed (mostly casing changes):
  • SpecialAncientpages => SpecialAncientPages
  • SpecialConfirmemail => SpecialConfirmEmail
  • SpecialDeadendpages => SpecialDeadendPages
  • SpecialFewestrevisions => SpecialFewestRevisions
  • SpecialListredirects => SpecialListRedirects
  • SpecialLonelypages => SpecialLonelyPages
  • SpecialLongpages => SpecialLongPages
  • SpecialMIMEsearch => SpecialMIMESearch
  • SpecialMostcategories => SpecialMostCategories
  • SpecialMostinterwikis => SpecialMostInterwikis
  • SpecialMostlinked => SpecialMostLinked
  • SpecialMostlinkedcategories => SpecialMostLinkedCategories
  • SpecialMostlinkedtemplates => SpecialMostLinkedTemplates
  • SpecialMostrevisions => SpecialMostRevisions
  • SpecialNewimages => SpecialNewFiles
  • SpecialShortpages => SpecialShortPages
  • SpecialUncategorizedcategories => SpecialUncategorizedCategories
  • SpecialUncategorizedimages => SpecialUncategorizedImages
  • SpecialUncategorizedpages => SpecialUncategorizedPages
  • SpecialUncategorizedtemplates => SpecialUncategorizedTemplates
  • SpecialUnusedcategories => SpecialUnusedCategories
  • SpecialUnusedimages => SpecialUnusedImages
  • SpecialUnusedtemplates => SpecialUnusedTemplates
  • SpecialUnwatchedpages => SpecialUnwatchedPages
  • SpecialWantedcategories => SpecialWantedCategories
  • SpecialWantedtemplates => SpecialWantedTemplates
  • SpecialWithoutinterwiki => SpecialWithoutInterwiki
• Language::setCode, deprecated in 1.32, was removed. Use Language::factory to create a new Language object with a different language code.
• MWNamespace::clearCaches() has been removed. So has the $rebuild parameter to MWNamespace::getCanonicalNamespaces(), which was deprecated since 1.31. Instead, reset services, such as by calling $this->overrideMwServices() (if your test extends MediaWikiTestCase). Services will generally not pick up configuration changes from after they were created, so you must reset services after any configuration change. Even if your code works now, it is likely to break in future versions as more code is moved to services.
• The ill-defined "DatabaseOraclePostInit" hook has been removed.
• PreferencesFormLegacy and PreferencesForm classes, deprecated in 1.32, have been removed.
• ObjectFactory class, deprecated in 1.31, has been removed.
• HWLDFWordAccumudlator class, deprecated in 1.28, has been removed.
• XMPInfo, XMPReader and XMPValidate, deprecated in 1.32, have been removed.
• The RedirectSpecialPage::execute method could sometimes return a Title object. This behavior was removed, and the method now matches the parent signature (SpecialPage::execute) which is to return HTML string or void. To obtain the destination title, use RedirectSpecialPage::getRedirect.
• The 'recenteditcount' response property from action API action=query list=allusers, deprecated in 1.25, has been removed.
• SearchEngine::userNamespaces(), SearchEngine::namespacesAsText(), SearchEngine::create(), SearchEngine::getSearchTypes() and SearchEngine::getNearMatch(), methods deprecated in 1.27, have been removed.
• FileRepo::streamFile(), deprecated in 1.26, has been removed.
• User::randomPassword() method, deprecated in 1.27, have been removed.
• MWNamespace::canTalk(), deprecated in 1.30, have been removed.
• Parser class property $mUniqPrefix, deprecated in 1.26, has been removed.
• wfArrayFilter() and wfArrayFilterByKey(), deprecated in 1.32, have been removed.
• wfMakeUrlIndexes() function, deprecated in 1.33, have been removed.
• Method signatures in WatchedItemQueryServiceExtension have changed from taking User objects to taking UserIdentity objects. Extensions implementing this interface need to be changed accordingly.
• User::getGroupPage() and ::makeGroupLinkHTML(), deprecated in 1.29, have been removed. Use UserGroupMembership::getGroupPage and ::getLink instead.
• User::makeGroupLinkWiki(), deprecated in 1.29, has been removed. Use UserGroupMembership::getLink() instead.
• SavepointPostgres, deprecated in 1.31, has been removed.
• OutputPage::enableSectionEditLinks(), OutputPage::sectionEditLinksEnabled(), ParserOptions::getEditSection(), ParserOptions::setEditSection(), and ParserOutput::getEditSectionTokens, ::getTOCEnabled, ::setEditSectionTokens, and ::setTOCEnabled, deprecated in 1.31, have been removed.
• EditPage::safeUnicodeInput() and ::safeUnicodeOutput(), deprecated in 1.30, have been removed.
• Four methods in OutputPage, deprecated in 1.32, have been removed. You should use OutputPage::showFatalError or throw a FatalError instead. The methods are ::showFileCopyError(), ::showFileRenameError(), ::showFileDeleteError(), and ::showFileNotFoundError().
• ApiBase::truncateArray(), deprecated in 1.32, has been removed.
• IcuCollation::getICUVersion(), deprecated in 1.32, has been removed. Use PHP's INTL_ICU_VERSION constant directly.
• HTMLForm::setSubmitProgressive(), deprecated in 1.32, has been removed.
• ResourceLoaderStartUpModules::getStartupModules() and ::getLegacyModules(), both deprecated in 1.32, have been removed.
• BaseTemplate::msgHtml() and QuickTemplate::msgHtml(), deprecated in 1.32, have been removed. Use ->msg() or ->getMsg() instead.
• WatchAction::getUnwatchToken(), deprecated in 1.32, has been removed. Instead, use WatchAction::getWatchToken() with action 'unwatch' directly.
• Language::initEncoding(), ::recodeForEdit(), and recodeInput(), deprecated in 1.28, have been removed.
• PageArchive::getTextFromRow(), ::listAllPages(), and ::getLastRevisionText(), deprecated in 1.32, have been removed.
• OutputPage::getModuleScripts(), ParserOutput::getModuleScripts(), deprecated in 1.33, have been removed.
• User::getPasswordValidity(), deprecated in 1.33, has been removed.
• ApiQueryBase::prepareUrlQuerySearchString(), deprecated in 1.33, has been removed.
• ChangeTags::purgeTagUsageCache(), deprecated in 1.33, has been removed.
• JobQueueGroup::pushLazyJobs(), deprecated in 1.33, has been removed.
• MediaWikiTestCase::stashMwGlobals(), deprecated in 1.32, has been removed.
• SearchEngine::transformSearchTerm(), deprecated in 1.32, has been removed.
• The Block typehint only refers to blocks stored in the database. It should be updated to AbstractBlock in cases where any type of block could be expected.
• FileRepoStatus, deprecated in 1.25, has been removed.
• The LegacyHookPreAuthenticationProvider class, deprecated since its creation in 1.27, has been removed.
• IP::isValidBlock(), deprecated in 1.30, has been removed.
• WikiPage::prepareContentForEdit now doesn't accept an integer for $revision, was deprecated in 1.25.
• The jquery.byteLength module, deprecated in 1.31, was removed. Use the mediawiki.String module instead.
• mw.language.specialCharacters, deprecated in 1.33, has been removed. Use require( 'mediawiki.language.specialCharacters' ) instead.
• The jquery.colorUtil module was removed. Use jquery.color instead.
• The jquery.checkboxShiftClick module was removed. The functionality is provided by mediawiki.page.ready instead (T232688).
• The 'jquery.accessKeyLabel' module has been removed. This jQuery plugin now ships as part of the 'mediawiki.util' module bundle.
• EditPage::submit(), deprecated in 1.29, has been removed. Use $this->edit() directly.
• HTMLForm::getErrors(), deprecated in 1.28, has been removed. Use getErrorsOrWarnings() instead.
• SpecialPage::getTitle(), deprecated in 1.23, has been removed. Use SpecialPage::getPageTitle() instead.
• jquery.ui.effect-bounce, jquery.ui.effect-explode, jquery.ui.effect-fold jquery.ui.effect-pulsate, jquery.ui.effect-slide, jquery.ui.effect-transfer, which are no longer used, have now been removed.
• SpecialEmailUser::validateTarget(), ::getTarget() without a sender/user specified, deprecated in 1.30, have been removed.
• BufferingStatsdDataFactory::getBuffer(), deprecated in 1.30, has been removed.
• The constant DB_SLAVE, deprecated in 1.28, has been removed. Use DB_REPLICA.
• The constants NS_IMAGE and NS_IMAGE_TALK, deprecated in 1.14, have been removed. Use NS_FILE and NS_FILE_TALK respectively.
• Replacer, DoubleReplacer, HashtableReplacer and RegexlikeReplacer (deprecated in 1.32) have been removed. Closures should be used instead.
• OutputPage::addWikiText(), ::addWikiTextWithTitle(), ::addWikiTextTitleTidy(), ::addWikiTextTidy(), ::addWikiTextTitle(), deprecated in 1.32, have been removed.
• The $wgUseKeyHeader configuration option and the OutputPage::getKeyHeader() method, deprecated in 1.32, have been removed.
• WebInstallerOutput::addWikiText(), deprecated in 1.32, has been removed.
• Parser::fetchFile(), deprecated in 1.32, has been removed. Use the method Parser::fetchFileAndTitle() instead.
• The global function wfBCP47, deprecated in 1.31, has been removed.
• wfCountDown() function, deprecated in 1.31, has been removed. Use \Maintenance::countDown() method instead.
• OutputPage::wrapWikiMsg() no longer accepts an options parameter. This was deprecated since 1.20.
• Skin::outputPage() no longer accepts a context. This was deprecated in 1.20.
• Linker::link() no longer accepts a string for the query array, as was deprecated in 1.20.
• PrefixSearch::titleSearch(), deprecated in 1.23, has been removed. Use the SearchEngine::defaultPrefixSearch or ::completionSearch() methods instead.
• The UserRights hook, deprecated in 1.26, has been removed. Instead, use the UserGroupsChanged hook.
• Skin::getDefaultInstance(), deprecated in 1.27, has been removed. Get the instance from MediaWikiServices instead.
• The UserLoadFromSession hook, deprecated in 1.27, has been removed.
• The wfResetSessionID global function, deprecated in 1.27, has been removed. Use MediaWiki\Session\SessionManager instead.
• The wfGetLBFactory global function, deprecated in 1.27, has been removed. Use MediaWikiServices::getInstance()->getDBLoadBalancerFactory().
• The internal method OutputPage->addScriptFile() will no longer silently drop calls that use an invalid path (i.e., something other than an absolute path, protocol-relative URL, or full scheme URL), and will instead pass them to the client where they will likely 404. This usage was deprecated in 1.24.
• Database::reportConnectionError, deprecated in 1.32, has been removed.
• APIEditBeforeSave hook, deprecated in 1.28, has been removed. Please see EditFilterMergedContent hook for an alternative way to use this feature.
• API module methods getDescription(), getParamDescription(), & getExamples(), all deprecated in 1.25 and ignored, have been removed.
• The API module method getDescriptionMessage(), deprecated in 1.30, has been removed.
• The JavaScript global variable wgLoadScript has been removed. Use mw.util.wikiScript( 'load' ) instead.
• ResourceLoader no longer creates the 'mw.legacy' placeholder object. It has been unused since 1.16 and was deprecated in 1.22. To deprecate a property in JavaScript, use mw.log.deprecate() instead.
• The 'user.groups' module, deprecated in 1.28, was removed. Use the 'user' module instead.
• The ResourceLoaderContext::expandModuleNames method, deprecated in 1.33, was removed. Use ResourceLoader::expandModuleNames instead.
• The ability to override User::$mRights has been removed. Use PermissionManager::addTemporaryUserRights() instead.
• Previously, when iterating ResultWrapper with foreach() or a similar construct, the range of the index was 1..numRows. This has been fixed to be 0..(numRows-1).
• The ChangePasswordForm hook, deprecated in 1.27, has been removed. Use the AuthChangeFormFields hook or security levels instead.
• WikiMap::getWikiIdFromDomain(), deprecated in 1.33, has been removed. Use WikiMap::getWikiIdFromDbDomain() instead.
• The config variables $wgHtml5, $wgJsMimeType, and $wgXhtmlDefaultNamespace, which were deprecated and ignored by core since 1.22, are no longer set to any value, and SkinTemplate no longer emits a 'jsmimetype' key. Any extensions not updated since 2013 to cope with this deprecation may now break.
• (T222637) Passing ResourceLoaderModule objects to ResourceLoader::register() or $wgResourceModules is no longer supported. Use the 'class' or 'factory' option of the array format instead.
• The parameter $lang of the functions generateTOC and tocList in Linker and DummyLinker must be in type Language when present. Other types are deprecated since 1.33.
• The static properties mw.Api.errors and mw.Api.warnings, deprecated in 1.29, have been removed.
• ParserOption::getSpeculativeRevIdCallback(), deprecated in 1.28, has been removed.
• The UploadVerification hook, deprecated in 1.28, has been removed. Instead, use the UploadVerifyFile hook.
• UploadBase:: and UploadFromChunks::stashFileGetKey() and stashSession(), deprecated in 1.28, have been removed. Instead, please use the getFileKey() method on the response from doStashFile().
• LBFactory::setDomainPrefix() and LoadBalancer::setDomainPrefix(), deprecated in 1.33, have been removed. Use setLocalDomainPrefix() instead.
• IDatabase::implicitGroupby(), deprecated in 1.30, has been removed.
• IDatabase::doneWrites(), deprecated in 1.31, has been removed. Use IDatabase::lastDoneWrites() instead.
• Database::reportConnectionError(), deprecated in 1.32, has been removed.
• LoadBalancer::laggedSlaveUsed(), deprecated in 1.28, has been removed. Use LoadBalancer::laggedReplicaUsed() instead.
• Database::getProperty(), deprecated in 1.28, has been removed.
• IDatabase::getWikiId(), deprecated in 1.30, has been removed. Use IDatabase::getDomainID() instead.
• (T191231) Support for using Oracle or MSSQL as database backends has been dropped.
• MessageCache::destroyInstance() has been removed. Instead, call MediaWikiTestCase::resetServices().
• SearchResult protected field $searchEngine is removed and no longer initialized after calling SearchResult::initFromTitle().
• The UserIsBlockedFrom hook is only called if a block is found first, and should only be used to unblock a blocked user.
• Parameters for index.php from PATH_INFO, such as the title, are no longer written to $_GET.
• The selectFields() methods on classes LocalFile, ArchivedFile, OldLocalFile, DatabaseBlock, and RecentChange, deprecated in 1.31, have been removed. Use the corresponding getQueryInfo() methods instead.
• The following methods on Revision, deprecated since 1.31, have been removed. Use RevisionStore::getQueryInfo() or RevisionStore::getArchiveQueryInfo() instead.
  • Revision::userJoinCond()
  • Revision::pageJoinCond()
  • Revision::selectFields()
  • Revision::selectArchiveFields()
  • Revision::selectTextFields()
  • Revision::selectPageFields()
  • Revision::selectUserFields()
• User::setNewpassword(), deprecated in 1.27 has been removed.
• The ObjectCache::getMainWANInstance and ObjectCache::getMainStashInstance functions, deprecated since 1.28, have been removed.
• Language::$dataCache has been removed (without prior deprecation, for practical reasons). Use MediaWikiServices instead to get a LocalisationCache.

=== Deprecations in 1.34 ===

• The MWNamespace class is deprecated. Use NamespaceInfo.
• ExtensionRegistry->load() is deprecated, as it breaks dependency checking. Instead, use ->queue().
• User::isBlocked() is deprecated since it does not tell you if the user is blocked from editing a particular page. Use User::getBlock() or PermissionManager::isBlockedFrom() or PermissionManager::userCan() instead.
• User::isLocallyBlockedProxy and User::inDnsBlacklist are deprecated and moved to the BlockManager as private helper methods.
• User::isDnsBlacklisted is deprecated. Use BlockManager::isDnsBlacklisted instead.
• The Config argument to ChangesListSpecialPage::checkStructuredFilterUiEnabled is deprecated. Pass only the User argument.
• WatchedItem::getUser is deprecated. Use getUserIdentity.
• Passing a Title as the first parameter to the getTimestampById method of RevisionStore is deprecated. Omit it, passing only the remaining parameters.
• Title::getPreviousRevisionId and Title::getNextRevisionId are deprecated. Use RevisionLookup::getPreviousRevision and RevisionLookup::getNextRevision.
• The Title parameter to RevisionLookup::getPreviousRevision and RevisionLookup::getNextRevision is deprecated and should be omitted.
• MWHttpRequest::factory is deprecated. Use HttpRequestFactory.
• The Http class is deprecated. For the request, get, and post methods, use HttpRequestFactory. For isValidURI, use MWHttpRequest::isValidURI. For getProxy, use (string)$wgHTTPProxy. For createMultiClient, construct a MultiHttpClient directly.
• Http::$httpEngine is deprecated and has no replacement. The default 'guzzle' engine will eventually be made the only engine for HTTP requests.
• RepoGroup::singleton(), RepoGroup::destroySingleton(), RepoGroup::setSingleton(), wfFindFile(), and wfLocalFile() are all deprecated. Use MediaWikiServices instead.
• The getSubjectPage, getTalkPage, and getOtherPage of Title are deprecated. Use NamespaceInfo's getSubjectPage, getTalkPage, and getAssociatedPage.
• MWMessagePack class, no longer used, has been deprecated in 1.34.
• The Block class is separated into DatabaseBlock (for blocks stored in the database), and SystemBlock (for temporary blocks created by the system). SystemBlock should be used when creating any temporary blocks. Block is a deprecated alias for DatabaseBlock.
• Parser::$mConf is deprecated. It will be removed entirely in a later version. Some context can be found at T224165.
• Constructing Parser directly is deprecated. Obtain one from ParserFactory.
• Title::moveSubpages is deprecated. Use MovePage::moveSubpages or MovePage::moveSubpagesIfAllowed.
• The MWNamespace class is deprecated. Use MediaWikiServices::getNamespaceInfo.
• (T62260) Hard deprecate Language::getExtraUserToggles() method.
• Language::viewPrevNext function is deprecated, use PrevNextNavigationRenderer::buildPrevNextNavigation instead
• User::trackBlockWithCookie and DatabaseBlock::clearCookie are deprecated. Use BlockManager::trackBlockWithCookie and BlockManager::clearCookie instead.
• DatabaseBlock::setCookie, DatabaseBlock::getCookieValue, DatabaseBlock::getIdFromCookieValue and AbstractBlock::shouldTrackWithCookie are moved to internal helper methods for BlockManager::trackBlockWithCookie.
• ResourceLoaderContext::getConfig and ResourceLoaderContext::getLogger have been deprecated. Inside ResourceLoaderModule subclasses, use the local methods instead. Elsewhere, use the methods from the ResourceLoader class.
• The Profiler::setTemplated and Profiler::getTemplated methods have been deprecated. Use Profiler::setAllowOutput and Profiler::getAllowOutput instead.
• The ProfilerOutputDb class, 'profiling' table, and profileinfo.php entry point had been deprecated (T231366).
• The Preprocessor_DOM implementation has been deprecated. It will be removed in a future release. Use the Preprocessor_Hash implementation instead.
• Sanitizer::attributeWhitelist() and Sanitizer::setupAttributeWhitelist() have been deprecated; they will be made private in the future.
• SearchResult::termMatches() method is deprecated. It was unreliable because only populated by few search engine implementations. Use SqlSearchResult::getTermMatches() if really needed.
• SearchResult::getTextSnippet( $terms ) the $terms param is being deprecated and should no longer be passed. Search engine implemenations should be responsible for carrying relevant information needed for highlighting with their own SearchResultSet/SearchResult sub-classes.
• SearchResultSet::free() method is deprecated.
• SearchEngine::$searchTerms protected field is deprecated. Moved to SearchDatabase.
• The use of the $terms param in the ShowSearchHit and ShowSearchHitTitle hooks is highly discouraged as it's only populated by SearchDatabase search engines.
• Skin::escapeSearchLink() is deprecated. Use Skin::getSearchLink() or the skin template option 'searchaction' instead.
• Skin::getRevisionId() and Skin::isRevisionCurrent() have been deprecated. Use OutputPage::getRevisionId() and OutputPage::isRevisionCurrent() instead.
• LoadBalancer::haveIndex() and LoadBalancer::isNonZeroLoad() have been deprecated.
• FileBackend::getWikiId() has been deprecated. Use FileBackend::getDomainId() instead.
• User::getRights() and User::$mRights have been deprecated. Use PermissionManager::getUserPermissions() instead.
• The LocalisationCacheRecache hook no longer allows purging of message blobs to be prevented. Modifying the $purgeBlobs parameter now has no effect.
• SVGMetadataExtractor::getMetadata has been deprecated. Instead, you should use SVGReader->getMetadata() directly.
• The following public properties on AbstractBlock are deprecated: $mReason, $mTimestamp, $mExpiry, $mHideName. Use the getters/setters instead.
• The following public properties on DatabaseBlock are deprecated: $mAuto, $mParentBlockId. To check for an autoblock use DatabaseBlock::getType; to check for the parent ID, use DatabaseBlock::getParentBlockId.
• SearchEngine::userHighlightPrefs() is deprecated, simply stop passing $contextlines and $contextchars to the SearchHighlighter methods, they will use proper defaults defined in SearchHighlighter::DEFAULT_CONTEXT_LINES and DEFAULT_CONTEXT_CHARS.
• SearchUpdate constructor: passing a string as the title param and or a boolean or a string as the content will produce a deprecation warning.
• SearchEngine::getTextFromContent() is deprecated, use getTextForSearchIndex() directly from the Content object.
• SearchEngine::textAlreadyUpdatedForIndex() is deprecated, given the deprecation above this method is no longer needed/called and should not be implemented by SearchEngine implementation.
• IDatabase::bufferResults() has been deprecated. Use query batching instead.
• MessageCache::singleton() is deprecated. Use MediaWikiServices::getMessageCache().
• ObjectCache::getWANInstance() is deprecated. Use MediaWikiServices::getMainWANObjectCache() instead.
• ObjectCache::newWANCacheFromParams() is deprecated. Use MediaWikiServices::getMainWANObjectCache() instead.
• Constructing MovePage directly is deprecated. Use MovePageFactory.
• TempFSFile::factory() has been deprecated. Use TempFSFileFactory instead.
• wfIsBadImage() is deprecated. Use the BadFileLookup service instead.
• Building a new SearchResult is hard-deprecated, always call SearchResult::newFromTitle(). This class is being refactored into an abstract class. If you extend this class please be sure to override all its methods or extend RevisionSearchResult.
• Skin::getSkinNameMessages() is deprecated and no longer used.
• The mediawiki.RegExp module is deprecated; use mw.util.escapeRegExp() instead.
• Specifying a SpecialPage object for the list of special pages (either through the SpecialPage_initList hook or by adding to $wgSpecialPages) is now deprecated.
• The 'jquery.tabIndex' module is deprecated.
• WebInstaller::getWarningBox() and getErrorBox() are deprecated. Use Html::errorBox() or Html::warningBox() instead.
• Use of ActorMigration with 'ar_user', 'img_user', 'oi_user', 'fa_user', 'rc_user', 'log_user', and 'ipb_by' is deprecated. Queries should be adjusted to use the corresponding actor fields directly. Note that use with 'rev_user' is not deprecated at this time.
• Specifying both the class and factory parameters for ApiModuleManager::addModule is now deprecated. The ObjectFactory spec should be used instead.
• The UserIsHidden hook is deprecated. Use GetUserBlock instead, and add a system block that hides the user.
• The GetBlockedStatus hook is deprecated. Use GetUserBlock instead, to add or remove a block.
• $wgContentHandlerUseDB is deprecated and should always be true.
• StreamFile::send404Message() and StreamFile::parseRange() are now deprecated. Use HTTPFileStreamer::send404Message() and HTTPFileStreamer::parseRange() respectively instead.
• Global variable $wgSysopEmailBans is deprecated; to allow sysops to ban users from sending emails, use $wgGroupPermissions['sysop']['blockemail'] = true;
• ApiQueryBase::showHiddenUsersAddBlockInfo() is deprecated. Use ApiQueryBlockInfoTrait instead.
• PasswordReset is now a service, its direct instantiation is deprecated.
• RESTBagOStuff users should specify either "JSON" or "PHP" serialization type.
• The global function wfIsHHVM() is deprecated and will now always return false regardless of the runtime environment. This is part of the continuing work to remove HHVM support from MediaWiki, which started in MediaWiki 1.31.
• Language::getLocalisationCache() is deprecated. Use MediaWikiServices instead.
• The following Language methods are deprecated: isSupportedLanguage, isValidCode, isValidBuiltInCode, isKnownLanguageTag, fetchLanguageNames, fetchLanguageName, getFileName, getMessagesFileName, getJsonMessagesFileName. Use the new LanguageNameUtils class instead. (Note that fetchLanguageName(s) are called getLanguageName(s) in the new class.)
• Using the Parser without initializing its $mTitle property to non-null has been deprecated. In a future release Parser::getTitle() will throw a TypeError if $mTitle is uninitialized.
• A number of public methods of Parser were exposed only for historical reasons and have been deprecated: doMagicLinks, doDoubleUnderscore, doHeadings, doAllQuotes, replaceExternalLinks, replaceInternalLinks, replaceInternalLinks2, getVariableValue, initialiseVariables, formatHeadings, testPst, testPreprocess, testSrvus, areSubpagesAllowed, maybeDoSubpageLink, splitWhitespace, createAssocArgs, armorLinks, makeKnownLinkHolder, getImageParams, parseLinkParameter, stripAltText, replaceLinkHolders, replaceLinkHoldersText, armorLinks, makeKnownLinkHolder, getImageParams, parseLinkParameter, stripAltText.

=== Other changes in 1.34 ===

• Added option to specify "Various authors" as author in extension credits using "..." as the only author name. If the "author" array contains more than one entry and "..." is one of the entries in the array, "..." will be parsed as "others" (version-poweredby-others i18n message) like previously.
• (T232563) Browser support ("Grade C") for Internet Explorer 6 and 7 was discontinued. Basic content and security features may no longer work correctly in these browsers.

= MediaWiki 1.33 =

== MediaWiki 1.33.4 ==

This is a security and maintenance release of the MediaWiki 1.33 branch.

=== Changes since MediaWiki 1.33.3 ===

• (T247017) PasswordReset performance improvements.
• The MultiHttpClient code will fallover to non-curl if curl_multi* is blocked.
• (T250568) Work around change in SimpleXMLElement behavior introduced in PHP 7.3.17.
• Remove some rotten and out of date documentation.
• (T252311) Improvements to some older SQLite update patches.
• (T240307) Minor fixes to extension.schema.v2.json and extension.schema.v1.json.
• rdbms: Add callback for atomic section cancellation.
• (T191668) NameTableStoreTest::getCallCheckingDb simplification.
• Make NameTableStore use LoadBalancer::getConnectionRef().
• (T224949) NameTableStore: ensure consistency upon rollback.
• (T199474) Set rc_patrolled to 2 for autopatrolled changes in rebuildrecentchanges.php.
• (T229461) Update the change_tag table in rebuildrecentchanges.php.
• (T234450) Per-user concurrency in SpecialContributions can now be limited by setting $wgPoolCounterConf['SpecialContributions'] appropriately.
• (T248947) SECURITY: img_auth.php may leak private extension images into the public cache.

== MediaWiki 1.33.3 ==

This is a security and maintenance release of the MediaWiki 1.33 branch.

=== Changes since MediaWiki 1.33.2 ===

• (T245072) mediawiki.language: Rename languageData back to languageNames.
• Use proper SemVer comparison in CheckComposerLockUpToDate.
• (T212738) Add the MW_VERSION constant, global $wgVersion is soft deprecated.
• Update comment about PHP versions supported by The PHP Group.
• (T247215) Fix output of RecountCategories::doWork().
• Add check for page existence to view.php maintenance script.
• (T236509) SECURITY: Fix HTML escaping in UserGroupMembership::getLink().
• (T246602) SECURITY: jquery.makeCollapsible allows applying event handler to any CSS selector.

== MediaWiki 1.33.2 ==

This is a security and maintenance release of the MediaWiki 1.33 branch.

=== Changes since MediaWiki 1.33.1 ===

• (T217831) (T200653) PopulateContentTables: compute sha1 and length if needed.
• Fix extra newlines in the installer.
• (T236628) Fix for ArticleRevisionViewCustom hook in DifferenceEngine.php.
• (T181658) Do not insert page titles into querycache.qc_value.
• (T206013) Suppress errors when reading invalid XML file properties.
• (T237931) Remove references to pg_attrdef.adsrc in Postgres code.
• Use correct value for 'sslmode' in DatabasePostgres.
• (T232866) Fix support for HTTP/2 in MultiHttpClient.
• (T227461) Stop calling deprecated Redis delete functions.
• (T239561) Mark options as requiring parameters in addSite.php.
• (T219440) Skip flaky rollback test.
• (T232866) Mimic CURLOPT_POST in GuzzleHttpRequest.
• (T239734) Replace deprecated lSize with lLen in Redis code.
• (T192134) SECURITY: Do not allow user scripts on Special:PasswordReset.
• (T239428) ApiEditPage: Test for bad redirect targets.
• (T233342) rdbms: Log debug message traces as 'exception.trace' instead of 'trace'.
• (T226751) media: Log and fail gracefully on invalid EXIF coordinates.
• (T212067) SECURITY: Work around PHP bug in parse_url.

== MediaWiki 1.33.1 ==

This is a security and maintenance release of the MediaWiki 1.33 branch.

=== Changes since MediaWiki 1.33.0 ===

• A change that kept people with a database table prefix that didn't end with an underscore from updating was reverted.
• (T207100) Updated LanguageTr for dotted and dotless I in PHP 7.3.
• The ImgAuthModifyHeaders hook was added to img_auth.php to allow modification of headers in private wikis.
• (T230317) Allow upgrading from MediaWiki before 1.15 where the valid_tag table doesn't yet exist.
• (T208897) MessageCache: Restore 'loadedLanguages' tracking for load().
• (T228555) MessageCache: Fix isMainCacheable() logic for non-content languages.
• (T200088) Remove title protection correctly for undeletions and imports.
• (T230402) SECURITY: Add permission check for suppressed account to Special:Redirect.
• Add helper for HTTPFileStreamer header syntax.
• (T227461) ObjectCache: avoid using deprecated phpredis::delete() alias.
• (T231386) SpecialRedirect::dispatchUser() should use a 302 http status code.
• (T118799) Fix XMP parser errors due to trailing nullchar.
• (T230618) Fix GROUP BY in ActiveUsersPager and RecentChangesUpdateJob for PostgreSQL.
• (T230487) Handle changed defaults in Argon2PasswordTest::testPartialConfig().
• (T233119) Improve documentation for the MinimumPasswordLengthToLogin policy.
• (T227662) Split down patch-comment-table.sql and patch-actor-table.sql into separate files to help allieviate potential migration problems.

=== Upgrading notes for 1.33 === 1.33 has several database changes since 1.32, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site).

Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed upgrade instructions, including important information when upgrading from versions prior to 1.11.

Some specific notes for MediaWiki 1.33 upgrades are below:

• Some external link searches will not work correctly until update.php (or refreshExternallinksIndex.php) is run. These include searches for links using IP addresses, internationalized domain names, and possibly mailto links.
• If you ran migrateActors.php using an older version of MediaWiki and want to run your wiki with $wgActorTableSchemaMigrationStage SCHEMA_COMPAT_READ_OLD, note that log_search rows needed to find revision deletions by target user were incorrectly deleted. See T215464 for details.
• If revision deletions were performed when the wiki was configured with $wgActorTableSchemaMigrationStage SCHEMA_COMPAT_WRITE_BOTH and without migrateActors.php having been run, the log_search table may contain rows with empty values for "target_author_actor" which will prevent log searches for revision deletions by target user from finding those log entries. These rows may be corrected by (re-)running migrateActors.php.

For notes on 1.32.x and older releases, see HISTORY.

== MediaWiki 1.33.0 ==

=== Changes since MediaWiki 1.33.0-rc.0 ===

• (T225558) Update installer link to PHP intl.
• (T225901) Only attempt to deduplicate if there is data in archive and revision tables.
• (T225564) Fetch tag ID before calling undefineTag().
• (T225496) Detect APC for MainCacheType in CLI installer.
• Call unpack() with correct parameters in MimeAnalyzer.php for PHP 7.0 support.
• (T212613) Style change tags correctly on Special:Newpages.
• (T202211) Fix SQLite patch-(page|template)links-fix-pk.sql column order.

== MediaWiki 1.33.0-rc.0 ==

=== Configuration changes for system administrators in 1.33 === ==== New configuration ====

• $wgEnablePartialBlocks – This enables the Partial Blocks feature, which gives accounts with block permissions the ability to block users, IPs, and IP ranges from editing specific pages, while allowing them to edit the rest of the wiki. It is a temporary setting for gradual enablement, current default to false, and will be set to true and then removed once initial development completes.

==== Changed configuration ====

• $wgChangeTagsSchemaMigrationStage (T193868) — This temporary setting, added in MediaWiki 1.32, now defaults to MIGRATION_NEW instead of MIGRATION_WRITE_BOTH.
• $wgPasswordPolicy – There is a new password policy to check that the account's password is not in the large blacklist. This is enabled by default for the built-in user groups bureaucrat, sysop, interface-admin, and bot. To configure this for other user groups, set the PasswordNotInLargeBlacklist flag true.
• $wgPasswordDefault – There is a new password type configuration using Argon2 password hashing (which requires PHP 7.2 and above). It's designed to resist timing attacks, and (on systems with PHP 7.3+) GPU hacking; if you configure argon2 to be used, by default, it will automatically choose the best available algorithm depending on which version of PHP you have available. To use this, you can set $wgPasswordDefault = 'argon2';.
• $wgActorTableSchemaMigrationStage now defaults to reading the new schema. update.php will back-populate the new database fields due to the changed setting, which may take some time on large wikis. You can avoid downtime by following a process like that described in T188327.

==== Removed configuration ====

• $wgTagStatisticsNewTable (T199334) — This temporary setting, added in MediaWiki 1.32, has now been removed. When loading Special:Tags, MediaWiki will now always use the change_tag_def instead of the change_tag table.
• $wgUseTidy, $wgTidyBin, $wgTidyConf, $wgTidyOpts, $wgTidyInternal, and $wgDebugTidy – These options, all deprecated since 1.26, have now all been removed, as MediaWiki now always tidies user output. The $wgTidyConfig setting remains only for experimental features and debugging, and should not be used.
• $wgEnableParserCache – This setting has been deprecated since 1.26, has now been removed. If you still desire to disable the parser cache, instead you can set $wgParserCacheType = CACHE_NONE;.
• $wgCommentTableSchemaMigrationStage – This temporary migration setting has now been removed. Code finding it unset should treat it as being MIGRATION_NEW.
• $wgAuth – This old setting, deprecated in 1.27, has been removed as part of the removal of AuthPlugin.
• $wgSitesCacheFile – This configuration was introduced in 1.25 with the intent to allow sites to configure a file in which to cache the SiteStore database table, but it was never used. SiteStore already caches its information by default using BagOStuff (e.g. Memcached or APC).
• $wgClockSkewFudge – This setting was used by User.php to let sites adjust by how much MediaWiki would fudge when trying to minimize the chances of a user.user_touched database update to the "current" timestamp being before the value already there (e.g. due to clock skew between different servers). This is no longer a problem, because the code now ensures the timestamp is always higher than the previous one. The writes are guarded with CAS logic (check and set), which prevents updates that would overlap.
• $wgDBmysql5 (T196185) - This experimental setting, deprecated in 1.31, has been removed.

=== New user-facing features in 1.33 ===

• (T96041) EXPECTUNUSEDCATEGORY on a category page causes the category to be hidden on Special:UnusedCategories.
• (T210814) SVGs are now by default displayed in wiki language on image pages.
• Special:CreateAccount now warns the user if their chosen username has to be normalized.
• (T205040) Multilingual images are now be displayed in the current parse language where available.
• Special:ActiveUsers will no longer filter out users who became inactive since the last time the active users query cache was updated.
• (T215675) RecentChange and ManualLogEntry implement new Taggable interface.
• (T215675) Added a hook, ManualLogEntryBeforePublish, to allow extensions to modify (example: add tags) log entries.

=== New developer features in 1.33 ===

• The AuthManagerLoginAuthenticateAudit hook has a new parameter for additional information about the authentication event.
• TextContent::getText() was introduced as a replacement for Content::getNativeData() for text-based content models.
• (T214706) LinksUpdate::getAddedExternalLinks() and LinksUpdate::getRemovedExternalLinks() were introduced.
• (T213893) Added 'MaintenanceUpdateAddParams' hook
• (T219655) The MarkPatrolled hook has a new parameter for the tags associated with this entry in the patrol log.
• (T212472) Extensions can now specify platform abilities they require to work, limited to shell access for now.

=== External library changes in 1.33 === ==== New external libraries ====

• Added wikimedia/password-blacklist 0.1.4.
• Added guzzlehttp/guzzle 6.3.3.

==== Changed external libraries ====

• Updated OOUI from v0.29.2 to v0.31.3.
• Updated OOjs Router from pre-release to v0.2.0.
• Updated moment from v2.19.3 to v2.24.0.
• Updated wikimedia/xmp-reader from 0.6.0 to 0.6.2.
• Updated wikimedia/scoped-callback from 2.0.0 to 3.0.0.
• Updated jquery-client from 2.0.1 to 2.0.2.
• Updated pear/net_smtp from 1.8.0 to 1.8.1.
• Updated cssjanus/cssjanus from 1.2.0 to 1.3.0.
• Updated wikimedia/php-session-serializer from 1.0.6 to 1.0.7.

==== Removed external libraries ====

• (T219403) jquery.ui.spinner, deprecated since 1.31, was removed.

=== Developer library changes in 1.33 === ==== New developer libraries ====

• Added jakub-onderka/php-console-highlighter 0.3.2 explicitly (dev-only).
• Added mediawiki/mediawiki-phan-config 0.5.0 (dev-only).

==== Changed developer libraries ====

• Updated wikimedia/ip-set from 1.3.0 to 2.0.1.
  • The deprecated IPSet\IPSet alias was removed, Wikimedia\IPSet must be used instead.
• Updated psy/psysh from 0.9.6 to 0.9.9 (dev-only).
• Updated nikic/php-parser from 3.1.3 to 3.1.5 (dev-only).
• Updated mediawiki/mediawiki-codesniffer from 22.0.0 to 25.0.0 (dev-only).
• Updated qunitjs from 2.6.2 to 2.9.1.

==== Removed developer libraries ====

• The jetbrains/phpstorm-stubs repository was removed in favour of the minimal stubs we need, which are kept in the new .phan/internal_stubs directory (dev-only).

=== Bug fixes in 1.33 ===

• (T164211) Special:UserRights could sometimes fail with a "conflict detected" error when there weren't any conflicts.
• (T216029) Chrome redirects to Special:BadTitle after editing a section with a non-Latin name on a page with non-Latin characters in title.
• (T222385) resourceloader: Use AND instead of OR for upsert conds in saveFileDependencies().

=== Action API changes in 1.33 ===

• (T198913) Added 'ApiOptions' hook.
• The JSON formatversion=2 is no longer experimental.
• Internal API errors (those with code beginning "internal_api_error") will include the exception class name in a data field named "errorclass".
  • Class names are not guaranteed to remain stable, and in particular database exceptions will now include the "Wikimedia\Rdbms" prefix in the class name.
  • The code including an exception class name is deprecated. In the future, all internal errors will use code "internal_api_error".
• (T212356) When using action=delete on pages with many revisions, the module may return a boolean-true 'scheduled' and no 'logid'. This signifies that the deletion will be processed via the job queue.
• action=setnotificationtimestamp will now update the watchlist asynchronously if entirewatchlist is set, so updates may not be visible immediately
• Block info will be added to "blocked" errors from more modules.
• (T216245) Autoblocks will now be spread by action=edit and action=move.
• action=query&meta=userinfo has a new uiprop, 'latestcontrib', that returns the date of user's latest contribution.
• (T25227) action=logout now requires to be posted and have a csrf token.

=== Action API internal changes in 1.33 ===

• A number of deprecated methods for API documentation, intended for overriding by extensions, are no longer called by MediaWiki, and will emit deprecation notices if your extension attempts to use them:
  • ApiBase::getDescription() (deprecated in 1.25)
  • ApiBase::getParamDescription() (deprecated in 1.25)
  • ApiBase::getExamples() (deprecated in 1.25)
  • ApiBase::getDescriptionMessage() (deprecated in 1.30) Additionally, the 'APIGetDescription' and 'APIGetParamDescription' hooks have been removed, as their only use was to let extensions override values returned by getDescription() and getParamDescription(), respectively.
• API error codes may only contain ASCII letters, numbers, underscore, and hyphen. Methods such as ApiBase::dieWithError() and ApiMessageTrait::setApiCode() will throw an InvalidArgumentException if passed a bad code.
• ApiBase::checkTitleUserPermissions() now takes an options array as its third parameter. Passing a User object or null is deprecated.
• The api-feature-usage log channel now has log context. The text message is deprecated and will be removed in the future.

=== Languages updated in 1.33 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T203908) Added language support for Eastern Pwo (kjp).
• (T213717) Fixed a translation error on Goan Konkani (gom-deva) translations for NS_TEMPLATE.
• (T212221) Added $digitTransformTable for Santali (sat).
• (T216479) Added language support for Saisiyat (xsy).
• (T219728) Added support for new Japanese era name "Reiwa"

=== Breaking changes in 1.33 ===

• The parameteter $lang in DifferenceEngine::setTextLanguage must be of type Language. Other types are deprecated since 1.32.
• Skin::doEditSectionLink requires type Language for the parameter $lang. The parameters $tooltip and $lang are mandatory. Omitting the parameters is deprecated since 1.32.
• Language::truncate(), deprecated in 1.31, has been removed.
• UtfNormal, deprecated in 1.25, was removed. Use UtfNormal\Validator directly instead.
• (T197179) In OOUI HTMLForm fields, the parameters 'notice', 'notice-messages', and 'notice-message', which were deprecated in 1.32, were removed. Instead, use 'help', 'help-message', and 'help-messages'.
• (T197179) HTMLFormField::getNotices(), deprecated in 1.32, was removed.
• The "Parsoid v1" compatibility mappings in ParsoidVirtualRESTService and RestbaseVirtualRESTService, deprecated since 1.26, have been removed. Use the RESTBase v1 or Parsoid v3 API instead.
• ParserOptions defaults 'tidy' to true now, since the untidy modes of the parser are being deprecated and ParserOptions::getCanonicalOverrides() has always been true at any rate.
• Support for disabling tidy and external tidy implementations has been removed. This was deprecated in 1.32. The pure PHP Remex tidy implementation is now used and no configuration is necessary.
• A number of deprecated methods for API documentation, intended for overriding by extensions, are no longer called by MediaWiki, and will emit deprecation notices if your extension attempts to use them:
  • ApiBase::getDescription() (deprecated in 1.25)
  • ApiBase::getParamDescription() (deprecated in 1.25)
  • ApiBase::getExamples() (deprecated in 1.25)
  • ApiBase::getDescriptionMessage() (deprecated in 1.30) Additionally, the 'APIGetDescription' and 'APIGetParamDescription' hooks have been removed, as their only use was to let extensions override values returned by getDescription() and getParamDescription(), respectively.
• The authentication hooks 'AbortAutoAccount' 'AbortNewAccount', 'AbortLogin', 'LoginUserMigrated', 'UserCreateForm', and 'UserLoginForm', all deprecated by the creation of AuthManager in 1.27, have been removed. This also means that the FakeAuthTemplate and LoginForm classes are removed, that FakeAuthTemplate is no longer passed into LoginSignupSpecialPage->getFieldDefinitions(), and that LoginSignupSpecialPage->getBCFieldDefinitions() is removed.
• The 'jquery.localize' module, deprecated in 1.32, has been removed. Instead, use 'jquery.i18n'.
• The hooks LanguageGetSpecialPageAliases and LanguageGetMagic, deprecated since 1.16, have now been removed. Instead, use $specialPageAliases or $magicWords respectively in a $wgExtensionMessagesFiles file.
• The following methods of the Preferences class, deprecated in 1.31, have been removed:
  • getSaveBlacklist()
  • loadPreferenceValues()
  • getOptionFromUser()
  • profilePreferences()
  • skinPreferences()
  • filesPreferences()
  • datetimePreferences()
  • renderingPreferences()
  • editingPreferences()
  • rcPreferences()
  • watchlistPreferences()
  • searchPreferences()
  • miscPreferences()
  • generateSkinOptions()
  • getDateOptions()
  • getImageSizes()
  • getThumbSizes()
  • validateSignature()
  • cleanSignature()
  • getTimezoneOptions()
  • filterIntval()
  • filterTimezoneInput()
  • getTimeZoneList()
• mw.util.jsMessage(), deprecated in 1.20, was removed. Use mw.notify instead.
• (T61113) User::EDIT_TOKEN_SUFFIX was removed. It was deprecated since 1.27.
• The 'mediawiki.api' module aliases, deprecated in 1.32, have been removed. Specifically: mediawiki.api.category, mediawiki.api.edit, mediawiki.api.login, mediawiki.api.options, mediawiki.api.parse, mediawiki.api.upload, mediawiki.api.user, mediawiki.api.watch, mediawiki.api.messages, and mediawiki.api.rollback.
• The 'jquery.byteLimit' module alias for 'jquery.lengthLimit', deprecated in 1.31, was removed.
• Revision::fetchRevision(), deprecated in 1.28, was removed.
• Class SquidUpdate, deprecated in 1.27, was removed.
• Title->getSquidURLs(), deprecated in 1.27, was removed. Instead, use Title->getCdnUrls().
• Title::escapeFragmentForURL(), deprecated in 1.30, was removed. Use Sanitizer::escapeIdForLink() or escapeIdForExternalInterwiki() instead.
• Title->canTalk(), deprecated in 1.30, was removed. Instead, use Title->canHaveTalkPage().
• Title's methods for site and user page related to CSS and JS, deprecated in 1.31, were removed:
  • Title->isCssOrJsPage() — Use Title->isSiteConfigPage()
  • Title->isCssJsSubpage() – Use Title->isUserConfigPage()
  • Title->getSkinFromCssJsSubpage() – Use Title->getSkinFromConfigSubpage()
  • Title->isCssSubpage() – Use Title->isUserCssConfigPage()
  • Title->isJsSubpage() – Use Title->isUserJsConfigPage()
• SiteSQLStore, deprecated in 1.27 and whose only method, ::newInstance(), would return the global SiteStore instance, has been removed. You can get to this via MediaWiki\MediaWikiServices::getInstance()->getSiteStore() directly.
• Linker::formatSize, deprecated in 1.28, has been removed (with DummyLinker's). Instead, use Language->formatSize() with the relevant Language object.
• Linker::formatTemplates, deprecated in 1.28, has been removed (along with the version in DummyLinker). You can use TemplatesOnThisPageFormatter directly.
• EventRelayerGroup::singleton(), deprecated in 1.27, has been removed. You can use MediaWikiServices::getInstance()->getEventRelayerGroup() directly.
• LinkCache->addLink(), deprecated in 1.27, has been removed. It is thought to be unused, and is distinct from OutputPage->addLink(), which remains.
• JsonContent->getJsonData(), deprecated in 1.25, has been removed. Instead, use JsonContent->getData().
• MWExceptionHandler::getLogId(), deprecated in 1.27, has been removed, as the exception ID is the same as the request ID, from WebRequest::getRequestId().
• SearchEngine::getNearMatchResultSet(), deprecated in 1.27, has been removed. You can use SearchEngine::getNearMatcher() instead.
• EmailNotification::updateWatchlistTimestamp, deprecated in 1.27, has been removed. Instead, use WatchedItemStore::updateNotificationTimestamp directly.
• User::getGroupName() and ::getGroupMember(), both deprecated in 1.29, have been removed. Instead, please use UserGroupMembership::getGroupName() and UserGroupMembership::getGroupMemberName().
• Backwards compatibility for setting wgSessionsInObjectCache to false or using wgSessionHandler, both of which were deprecated in 1.27 with the introduction of SessionManager, has been removed.
• SessionManager::autoCreateUser, deprecated in 1.27, has been removed. Use MediaWiki\Auth\AuthManager::autoCreateUser instead.
• The mw.libs.jpegmeta property, deprecated in 1.31, was removed. Use require( 'mediawiki.libs.jpegmeta' ) instead.
• The mw.user.stickyRandomId() method, deprecated in 1.32, was removed. Use mw.user.getPageviewToken() instead.
• Removed deprecated class property WikiRevision::$importer.
• ResourceLoaderFileModule::readStyleFiles() now requires its $context parameter.
• The ChangeList::insertArticleLink() method, that was deprecated in 1.27, has been removed.
• MessageBlobStore::__construct() now requires its $rl parameter.
• Second parameter to Sanitizer::escapeIdReferenceList() (deprecated in 1.31) has been removed.
• The 'jquery.xmldom' module has been removed.
• The 'jquery.mockjax' module has been removed.
• The 'jquery.hidpi' module, deprecated in 1.32, has been removed.
• AuthPlugin and related code, deprecated in 1.27, has been removed. Extensions should instead use AuthManager. The following no longer exist:
  • The AuthPlugin class itself and the related AuthPluginUser class and i18n
  • The AuthPluginSetup and AuthPluginAutoCreate hooks
  • The transitional wrapper classes AuthPluginPrimaryAuthenticationProvider, AuthManagerAuthPlugin, and AuthManagerAuthPluginUser.
  • The $wgAuth configuration setting and its use in Setup.php and unit tests
• (T217772) The 'wgAvailableSkins' mw.config key in JavaScript, was removed.
• Language::markNoConversion, deprecated in 1.32, has been removed. Use LanguageConverter::markNoConversion instead.
• BagOStuff::modifySimpleRelayEvent() method has been removed.
• ParserOutput::getLegacyOptions, deprecated in 1.30, has been removed. Use ParserOutput::allCacheVaryingOptions instead.
• CdnCacheUpdate::newSimplePurge, deprecated in 1.27, has been removed. Use CdnCacheUpdate::newFromTitles() instead.
• Handling of multiple arguments by the Block constructor, deprecated in 1.26, has been removed.
• The translation of main page in Sardinian (sc) was changed from "Pàgina Base" to "Pàgina printzipale". Existing wikis using this content language need to move the main page or change the name through MediaWiki:Mainpage page.
• wfSplitWikiID(), deprecated in 1.32, has been removed.
• MessageBlobStore::getBlob(), deprecated in 1.27, has been removed. Use ::getBlobs() instead.
• The .background-size() LESS mixin, deprecated in 1.27, has been removed.
• ReadOnlyMode::clearCache() and ConfiguredReadOnlyMode::clearCache() have been removed. Use MediaWikiTestCase::overrideMwServices() instead.
• Support for the 'aggregator' option of JobQueue (and thus $wgJobTypeConf) was removed. The JobQueueAggregator interface and JobQueueAggregatorRedis class have also been removed. They were experimentally developed for use by the Wikimedia Foundation, but were never used, with no known use cases. (Note that this does not affect JobQueueRedis which is still supported.)

=== Deprecations in 1.33 ===

• The configuration option $wgUseESI has been deprecated, and is expected to be removed in a future release.
• The configuration option $wgSquidPurgeUseHostHeader has been deprecated, and is expected to be removed in a future release.
• The configuration options $wgFixArabicUnicode and $wgFixMalayalamUnicode, introduced in MW 1.17, have been deprecated. These fixes will always be applied for Arabic and Malayalam in the future. Please enable these on your local wiki (if you have them explicitly set to false) and run maintenance/cleanupTitles.php to fix any existing page titles.
• The LegacyHookPreAuthenticationProvider class, deprecated since its creation in 1.27 as part of the AuthManager re-write, now emits deprecation warnings. This will help identify the issue if you added it to $wgAuthManagerConfig.
• wfSplitWikiId() is now deprecated. Cache key generation should have the wiki domain ID as a key component and use makeGlobalKey().
• (T202094) Title::getUserCaseDBKey() is deprecated; instead, please use Title::getDBkey(), which doesn't vary case.
• User::getPasswordValidity() is now deprecated. User::checkPasswordValidity() returns the same information in a more useful format.
• For Linker::generateTOC() and Linker::tocList(), passing strings or booleans as the $lang parameter was deprecated. The same applies to DummyLinker.
• The PasswordPolicy 'PasswordCannotBePopular' has been deprecated. To follow best practices, it is reccommended to use 'PasswordNotInLargeBlacklist' instead which blacklists 100,000 commonly used passwords.
• (T208862) Action::requiresUnblock() is now called from Title::getUserPermissionsErrors() and Title::userCan(). Previously, the method was only called in Action::checkCanExecute(). Actions should ensure that their requiresUnblock() returns the proper result (the default is true).
• (T211608) The MediaWiki\Services namespace has been renamed to Wikimedia\Services. The old name is still supported, but deprecated.
• (T155582) Content::getNativeData has been deprecated. Please use model- specific getters, such as TextContent::getText().
• The class WebInstallerOutput is now marked as @private.
• (T209699) The jquery.async module has been deprecated. JavaScript code that needs asynchronous behaviour should use Promises.
• Password::equals() is deprecated, use verify().
• BaseTemplate::msgWiki() and QuickTemplate::msgWiki() will be removed. Use other means to fetch a properly escaped message string or Message object.
• (T126091) The 'ResourceLoaderTestModules' hook, which lets you declare QUnit testing code for your JavaScript modules, is deprecated. Instead, you can now use the new extension registration key 'QUnitTestModule'.
• (T213426) The jquery.throttle-debounce module has been deprecated. JavaScript code that needs this behaviour should use OO.ui.debounce/throttle.
• The mw.language.specialCharacters property from the 'mediawiki.language.specialCharacters' module has been deprecated. Use require( 'mediawiki.language.specialCharacters' ) instead.
• ChangeTags::purgeTagUsageCache() has been deprecated, and is expected to be removed in a future release.
• Passing a User object or null as the third parameter to ApiBase::checkTitleUserPermissions() has been deprecated. Pass an array [ 'user' => $user ] instead.
• (T211578) Block::prevents is deprecated. Use Block::isEmailBlocked, Block::isCreateAccountBlocked and Block::isUsertalkEditAllowed to get and set block properties; use Block::appliesToRight and Block::appliesToUsertalk to check block behaviour.
• The api-feature-usage log channel now has log context. The text message is deprecated and will be removed in the future.
• The FileBasedSiteLookup class has been deprecated. For a cacheable SiteLookup implementation, use CachingSiteStore instead.
• Language::viewPrevNext function is deprecated, use SpecialPage::buildPrevNextNavigation instead
• ManualLogEntry::setTags() is deprecated, use ManualLogEntry::addTags() instead. The setTags() method was overriding the tags, addTags() doesn't override, only adds new tags.
• Block::isValid is deprecated, since it is no longer needed in core.
• Calling Maintenance::hasArg() as well as Maintenance::getArg() with no parameter has been deprecated. Please pass the argument number 0.
• ResourceLoaderContext::expandModuleNames has been deprecated. Use ResourceLoader::expandModuleNames instead.

=== Other changes in 1.33 ===

• (T201747) Html::openElement() warns if given an element name with a space in it.
• The implementation of buildStringCast() in Wikimedia\Rdbms\Database has changed to explicitly cast. Subclasses relying on the base-class implementation should check whether they need to override it now.
• BagOStuff::add is now abstract and must explicitly be defined in subclasses.
• LinksDeletionUpdate is now a subclass of LinksUpdate. As a consequence, the following hooks will now be triggered upon page deletion in addition to page updates: LinksUpdateConstructed, LinksUpdate, LinksUpdateComplete. LinksUpdateAfterInsert is not triggered since deletions do not cause insertions into links tables.
• Category::newFromID( $id )->getID() will now return $id without any validation, to avoid a mostly unnecessary DB query.
• On Special:Version, the name for an extension can no longer be arbitrary html when no link is specified.

= MediaWiki 1.32 =

== MediaWiki 1.32.6 ==

This is a security and maintenance release of the MediaWiki 1.32 branch.

=== Changes since MediaWiki 1.32.5 ===

• (T236628) Fix for ArticleRevisionViewCustom hook in DifferenceEngine.php.
• (T181658) Do not insert page titles into querycache.qc_value.
• (T206013) Suppress errors when reading invalid XML file properties.
• (T237931) Remove references to pg_attrdef.adsrc in Postgres code.
• Use correct value for 'sslmode' in DatabasePostgres.
• (T232866) Fix support for HTTP/2 in MultiHttpClient.
• (T227461) Stop calling deprecated Redis delete functions.
• (T239561) Mark options as requiring parameters in addSite.php.
• (T239734) Replace deprecated lSize with lLen in Redis code.
• (T192134) SECURITY: Do not allow user scripts on Special:PasswordReset.
• (T239428) ApiEditPage: Test for bad redirect targets.
• (T233342) rdbms: Log debug message traces as 'exception.trace' instead of 'trace'.
• (T226751) media: Log and fail gracefully on invalid EXIF coordinates.
• (T212067) SECURITY: Work around PHP bug in parse_url.

== MediaWiki 1.32.5 ==

This is a maintenance release of the MediaWiki 1.32 branch.

=== Changes since MediaWiki 1.32.4 ===

• Compute sha1 and length if needed in maintenance/populateContentTables.php.
• Fix extra newlines in the installer.
• Followup T230402, PermissionManager doesn't exist until 1.33, so fix the backported patches to use User::isAllowed() instead.

== MediaWiki 1.32.4 ==

This is a security and maintenance release of the MediaWiki 1.32 branch.

=== Changes since MediaWiki 1.32.3 ===

• (T207100) Updated LanguageTr for dotted and dotless I in PHP 7.3.
• The ImgAuthModifyHeaders hook was added to img_auth.php to allow modification of headers in private wikis.
• (T230402) SECURITY: Add permission check for suppressed account to Special:Redirect.
• (T208897) MessageCache: Restore 'loadedLanguages' tracking for load().
• (T200088) Remove title protection correctly for undeletions and imports.
• Add helper for HTTPFileStreamer header syntax.
• (T118799) Fix XMP parser errors due to trailing nullchar.
• (T233119) Improve documentation for the MinimumPasswordLengthToLogin policy.
• Cache redirects from Special:Redirect.
• (T231386) dispatchUser() should use a 302 http status code.
• (T227662) Split down patch-comment-table.sql and patch-actor-table.sql into separate files to help allieviate potential migration problems.
• Make SQLite's patch-add-3d.sql a no-op to prevent clobbering other database updates.

== MediaWiki 1.32.3 ==

This is a maintenance release of the MediaWiki 1.32 branch.

=== Changes since MediaWiki 1.32.2 ===

• (T225558) Update installer link to PHP intl.
• (T225496) Detect APC for MainCacheType in CLI installer.
• (T226766) Remove jetbrains/phpstorm-stubs from composer dev dependencies.
• (T202211) Fix SQLite patch-(image|page|template)links-fix-pk.sql column order.

== MediaWiki 1.32.2 ==

This is a security and maintenance release of the MediaWiki 1.32 branch.

=== Changes since MediaWiki 1.32.1 ===

• (T204423) Backport support for hyphenated DB names in JobQueueGroup.
• (T216968) Return pageid as int in both list=iwbacklinks and list=langbacklinks.
• (T215169) Fix for Database::update() with IGNORE option fails on PostgreSQL.
• (T199474) Fix typo in rebuildrecentchanges.php resulting in rogue flags.
• (T218608) SECURITY: Fix an issue that prevents Extension:OAuth working when $wgBlockDisablesLogin is true.
• (T216029) Chrome redirects to Special:BadTitle after editing a section with a non-Latin name on a page with non-Latin characters in title.
• Unbreak language related maintenance scripts that use StaticArrayWriter.
• (T219728) Added support for new Japanese era name "Reiwa".
• (T25227) SECURITY: action=logout now requires to be posted and have a csrf token.
• Updated cssjanus/cssjanus from 1.2.0 to 1.3.0.
• (T221045) Remove orphaned code from ConfigRepository.
• (T222385) resourceloader: Use AND instead of OR for upsert conds in saveFileDependencies().
• (T224374) Fix message parameters so that the message that says SQLite is out of date makes sense.
• (T200471) Prevent LBFactorySimple breaking ExternalStorage, when trying to connect to external server with local database name.
• (T197279) SECURITY: Fix reauth in Special:ChangeEmail.
• (T208881) SECURITY: blacklist CSS var().
• (T209794) SECURITY: rate-limit and prevent blocked users from changing email.
• (T199540) SECURITY: API: Respect $wgBlockCIDRLimit in action=block.
• (T212118) SECURITY: Fix cache mode for (un)patrolled recent changes query.
• (T222036, T222038) SECURITY: Add permission check for user is permitted to view the log type.
• (T221739) SECURITY: resources: Patch jQuery 3.3.1 for CVE-2019-11358.

== MediaWiki 1.32.1 ==

=== Changes since MediaWiki 1.32.0 ===

• (T213577) rdbms: avoid transaction status errors from ping() in rollback().
• rdbms: Pass required parameter.
• rdbms: do not treat SAVEPOINT and RELEASE SAVEPOINT as write queries.
• (T204531) rdbms: reduce LoadBalancer replication log spam.
• (T213489) Avoid session double-start in Setup.php.
• (T213717) Correct namespace 'Template' for gom-deva
• (T198054) Fix login page crash caused by unknown language via ?uselang
• (T215324) (T210937) list=users mistakenly reports user as missing.
• (T209483) Add ILBFactory::redefineLocalDomain method. This is intended for use with scripts like addWiki.php to avoid mismatched domain errors.
• (T208871) The hard-coded Google search form on the database error page was removed.
• (T204800) Fix Title::getFragmentForURL for bad interwiki prefix
• (T215566) Fix installer being unable to determine if the database exists during a fresh installation.

== MediaWiki 1.32.0 ==

=== Changes since MediaWiki 1.32.0-rc.2 ===

• (T188327) Fix slow queries in migrateActors.php.
• (T102320) Fix $magicWords for the Sanskrit language.

=== Changes since MediaWiki 1.32.0-rc.1 ===

• Fix addition of ug_expiry column to user_groups table on MSSQL.
• (T210307) Fix the cache timestamp for forced updates.
• (T210621) User: Bypass repeatable-read when creating an actor_id.
• (T197535) Extensions can now specify PHP versions and PHP extensions they depend on.
• Updated wikimedia/ip-set from v1.2.0 to v1.3.0.
• (T212356) When using action=delete on pages with many revisions, the module may return a boolean-true 'scheduled' and no 'logid'. This signifies that the deletion will be processed via the job queue.
• (T64103) Dropped columns category.cat_hidden, site_stats.ss_admins, and recentchanges.rc_cur_time from the PostgreSQL schema.

=== Changes since MediaWiki 1.32.0-rc.0 ===

• (T209885) Prevent populateSearchIndex.php from breaking once actor migration has been started.
• (T210998) Properly set $wgLanguageCode in the generated LocalSettings.php if --lang is used with the command-line installer (install.php).

=== Configuration changes in 1.32 ===

==== New configuration ====

• $wgJpegQuality – The quality of JPEG thumbnails is now configurable through this setting. The default is 80, which matches the quality of JPEG thumbnails previously generated by ImageMagick. The quality of JPEG thumbnails generated by GD was previously 95, but now uses the $wgJpegQuality setting as well.
• $wgCookieSetOnIpBlock - This determines whether to set a cookie when an IP user is blocked. Doing so means that a blocked user, even after moving to a new IP address, will still be blocked.
• $wgRawHtmlMessages – This new configuration setting is added for listing messages which are displayed as raw HTML.
• $wgCSPHeader and $wgCSPReportOnlyHeader – You can now define a "Content Security Policy" for your wiki. This adds a defense-in-depth feature to stop an attacker who has found a bug in the parser allowing them to insert malicious attributes. Disabled by default. (T135963)
• $wgGroupPermissions – A new user group, 'interface-admin', is added for controlling access to sitewide CSS/JS (and editing other users' CSS/JS). No other group has 'editsitecss', 'editusercss', 'editsitejs' or 'edituserjs' by default.
• $wgGrantPermissions – A new grant group, 'editsiteconfig', is added for granting the above rights.
• $wgDBDefaultGroup – A default database group for use by maintenance scripts.
• $wgResourceLoaderEnableJSProfiler – This new configuration setting lets you enable client-side profiling of JavaScript modules; it is off by default.
• (T193868) $wgChangeTagsSchemaMigrationStage — This temporary configuration setting allows sysadmins to gradually migrate the database table schema for how change tags are stored.
• (T199334) $wgTagStatisticsNewTable — This temporary configuration setting allows sysadmins to enable the caching of Special:Tags via the new change_tag_def table.

==== Changed configuration ====

• $wgUseAjax – This setting, deprecated in 1.31, is now ignored.
• $wgDefaultUserOptions – The default watchlist view time (watchlistdays) has been increased from 3 to 7 days. (T194414)
• $wgGroupPermissions – The right to edit sitewide Javascript (e.g. MediaWiki:Common.js), CSS or JSON was separated from 'editinterface' and is available under 'editsitejs'/'editsitecss'/'editsitejson'. Having 'editinterface' is still necessary to edit such pages.
• $wgMultiContentRevisionSchemaMigrationStage now defaults to writing both the old and the new schema, but reading the new schema, so Multi-Content Revisions (MCR) are now functional per default. The new default value of the setting is SCHEMA_COMPAT_WRITE_BOTH | SCHEMA_COMPAT_READ_NEW.
• $wgActorTableSchemaMigrationStage no longer accepts MIGRATION_WRITE_BOTH or MIGRATION_WRITE_NEW. It instead uses SCHEMA_COMPAT_WRITE_BOTH | SCHEMA_COMPAT_READ_OLD and SCHEMA_COMPAT_WRITE_BOTH | SCHEMA_COMPAT_READ_NEW for intermediate stages of migration.
• $wgDBTableOptions – The default table options now use the binary charset. The default was already overridden in the installer-generated LocalSettings.php, and so is always set to binary after the installer UI option was removed. The default value is only used when the installer installs an extension.
• $wgPopularPasswordFile — The location of the default popular passwords file has been moved to be in line with other non-PHP files used by libraries and classes.
• $wgEnableImageWhitelist is now disabled by default, as it opens up a hole for potential privacy leaks by administrators. You can check "MediaWiki:External image whitelist" on your wiki to see whether the feature was ever used, and whether it needs to be re-enabled.

==== Removed configuration ====

• $wgEnableAPI and $wgEnableWriteAPI – These settings, deprecated in 1.31, have been removed. (T115414)
• $wgSiteSupportPage – This setting, unused since 1.5, was removed.
• $wgBrowserBlacklist – This setting, deprecated in 1.30, was removed.
• $wgExperimentalHtmlIds – This setting, deprecated since 1.30, was removed. The 'html5-legacy' value for $wgFragmentMode is no longer accepted.
• $wgPasswordSenderName - This setting, ignored since 1.23 by MediaWiki and most extensions, is no longer set. Instead, you can modify the system message emailsender.
• $wgTidyConfig – The experimental Html5Internal and Html5Depurate tidy drivers were removed. RemexHtml, which is the default, should be used instead.
• (T181318) The $wgStyleVersion setting and its appendage to various script and style URLs in OutputPage, deprecated in 1.31, was removed.
• (T140807) The wgResourceLoaderLESSImportPaths configuration option was removed from ResourceLoader. Instead, use @import statements in LESS to import files directly from nearby directories within the same project.
• (T140804) The wgResourceLoaderLESSVars configuration option, deprecated since 1.30, was removed. Instead, to expose variables from PHP to LESS, use the ResourceLoaderModule::getLessVars() method.
• $wgResourceLoaderValidateStaticJS – This setting, unused since MediaWiki 1.18, was removed.
• Two temporary variables for deploying the feature of filters on change lists, $wgStructuredChangeFiltersShowPreference introduced in MediaWiki 1.30 and $wgStructuredChangeFiltersOnWatchlist in 1.31, were removed.

=== New features in 1.32 ===

• (T112474) Generalized the ResourceLoader mechanism for overriding modules using a particular page during edit previews.
• (T12331) You can now log page creation events by setting $wgPageCreationLog to true.
• Added 'ApiParseMakeOutputPage' hook.
• (T174313) Added checkbox on Special:ListUsers to display only users in temporary user groups.
• (T152462) A cookie can now be set when an IP user is blocked to track that user if they move to a new IP address. This is disabled by default.
• (T194950) Added 'ApiMaxLagInfo' hook.
• SpecialPage::checkLoginSecurityLevel() will now preserve POST data when reauthenticating.
• FormSpecialPage::execute() will now call checkLoginSecurityLevel() if getLoginSecurityLevel() returns non-false.
• The 'ImageBeforeProduceHTML' hook is now passed three new parameters, $parser, &$query and &$widthOption, allowing extensions even finer control over the resulting HTML code.
• Added new 'ArticleShowPatrolFooter' hook, which allows extensions to determine if the [mark as patrolled] link should be shown at the footer of patrollable pages.
• The array of hidden options ($opts) passed to the 'SpecialSearchPowerBox' hook is now passed by reference, allowing extensions to modify or even unset it.
• Added new 'OutputPageAfterGetHeadLinksArray' hook, allowing extensions to modify the return value of OutputPage#getHeadLinksArray in order to add, remove or otherwise alter the elements to be output in the page <head>.
• (T28934) The 'HistoryPageToolLinks' hook allows extensions to append additional links to the subtitle of a history page.
• The 'GetLinkColours' hook now receives an additional $title parameter, the Title object of the page being parsed, on which the links will be shown.
• (T194731) DifferenceEngine supports multiple slots. Added SlotDiffRenderer to render diffs between two Content objects, and DifferenceEngine::setRevisions() to render diffs between two custom (potentially multi-content) revisions. Added GetSlotDiffRenderer hook which works like GetDifferenceEngine for slots.
• Added a temporary action=mcrundo to the web UI, as the normal undo logic can't yet handle MCR and deadlines are forcing is to put off fixing that. This action should be considered deprecated and should not be used directly.
• Extensions overriding ContentHandler::getUndoContent() will need to be updated for the changed method signature.
• Added a new hook, 'UserGetRightsRemove', which can be used to remove rights from user. Unlike the 'UserGetRights' it will ensure that removed rights will not be reinserted.
• (T197535) Extensions can now specify PHP versions and PHP extensions they depend on.

=== External library changes in 1.32 ===

==== New external libraries ====

• Added pear/Net_SMTP v1.8.0.

• Added wikimedia/xmp-reader v0.6.0.

• Added cache/integration-tests v0.16.0 (dev-only).

• Added giorgiosironi/eris v0.10.0 (dev-only).

• Added seld/jsonlint v1.7.1 (dev-only).

• Added EasyDeflate (unversioned).

==== Changed external libraries ====

• Updated OOUI from v0.26.3 to v0.29.2.

• Updated wikimedia/base-convert from v1.0.1 to v2.0.0.

• Updated wikimedia/remex-html from v1.0.3 to v2.0.1.

• Updated wikimedia/scoped-callback from v1.0.0 to v2.0.0. ** ScopedCallback objects can no longer be serialized.

• Updated wikimedia/timestamp from v1.0.0 to v2.2.0.

• Updated wikimedia/wrappedstring from v2.3.0 to v3.0.1.

• oyejorge/less.php replaced with our fork wikimedia/less.php

• Updated wikimedia/ip-set from v1.2.0 to v1.3.0.

• Updated composer/spdx-licenses from v1.3.0 to v1.4.0 (dev-only).

• Updated mediawiki/mediawiki-codesniffer from v18.0.0 to v22.0.0 (dev-only).

• Updated psy/psysh from v0.8.11 to v0.9.6 (dev-only).

• Updated CLDRPluralRuleParser from v0.1.0 to v1.3.2-pre.

• Updated jquery from v3.2.1 to v3.3.1.

• Updated jquery.client from v2.0.0 to v2.0.1.

• Updated jquery.i18n from v1.0.4 to v1.0.5.

• Updated mustache.js from v0.8.2-d9aa703 to v1.0.0.

• Updated OOjs from v2.2.0 to v2.2.2.

• Updated qunitjs from v2.4.0 to v2.6.2.

• Updated sinonjs from v1.17.3 to v1.17.7.

==== Removed external libraries ====

• pear/mail_mime-decode was removed.

=== Bug fixes in 1.32 ===

• SpecialPage::execute() will now only call checkLoginSecurityLevel() if getLoginSecurityLevel() returns non-false.
• (T43720, T46197) Improved page display title handling for category pages
• (T65080) Fixed resetting options of some types via API action=options.

=== Action API changes in 1.32 ===

• Added templated parameters.
  • A module can define a templated parameter like "{fruit}-quantity", where the actual parameters recognized correspond to the values of a multi-valued parameter. Then clients can make requests like "fruits=apples|bananas&apples-quantity=1&bananas-quantity=5".
  • action=paraminfo will return templated parameter definitions separately from normal parameters. All parameter definitions now include an "index" key to allow clients to maintain parameter ordering when merging normal and templated parameters.
• It is now an error to submit too many values for a multi-valued parameter. This has generated a warning since MediaWiki 1.14.
• Assertion failures from the 'assert' and 'assertuser' parameters will no longer use the action module's custom response format, for the few modules that use custom formatters that handle errors.
• (T198935) User list preferences such as email-blacklist and similar extension preferences are no longer represented as arrays when returned by action=query&meta=userinfo&uiprop=options.
• 'missingparam' errors will now use the prefixed parameter name in the code and error text, e.g. "noxxfoo" and "The 'xxfoo' parameter must be set" rather than "nofoo" and "The 'foo' parameter must be set".
• action=query&prop=revisions now takes a 'rvslots' parameter to indicate the multi-content revision slots for which content should be returned. It also has a new rvprop, 'roles', to indicate which roles have slots. A deprecation warning will be issued if rvprop=content or rvprop=contentmodel are used without rvslots.
• The rvcontentformat parameter to action=query&prop=revisions has been deprecated. Clients should be prepared to deal with the default format for relevant models.
• Use of the deprecated parameters rvexpandtemplates, rvgeneratexml, rvparse, rvdiffto, rvdifftotext, rvdifftotextpst, rvcontentformat, or the deprecated rvprop=parsetree is forbidden with the new 'rvslots' parameter.
• action=query&prop=deletedrevisions, action=query&list=allrevisions, and action=query&list=alldeletedrevisions are changed similarly to &prop=revisions (see the three previous items).
• (T174032) action=compare now supports multi-content revisions.
  • It has a 'slots' parameter to select diffing of individual slots. The default behavior is to return one combined diff.
  • The 'fromtext', 'fromsection', 'fromcontentmodel', 'fromcontentformat', 'totext', 'tosection', 'tocontentmodel', and 'tocontentformat' parameters are deprecated. Specify the new 'fromslots' and 'toslots' to identify which slots have text supplied and the corresponding templated parameters for each slot.
  • The behavior of 'fromsection' and 'tosection' of extracting one section's content is not being preserved. 'fromsection-{slot}' and 'tosection-{slot}' instead expand the given text as if for a section edit. This effectively declines T183823 in favor of T185723.
• (T198214) The 'disabletidy' parameter to action=parse has been deprecated; untidy output will not be supported by future wikitext parsers.
• Added intestactionsdetail to action=query&prop=info to allow retrieving the reasons an action is not allowed.
• Deprecated action=query&prop=info inprop=readable in favor of intestactions=read.
• (T212356) When using action=delete on pages with many revisions, the module may return a boolean-true 'scheduled' and no 'logid'. This signifies that the deletion will be processed via the job queue.

=== Action API internal changes in 1.32 ===

• Added 'ApiParseMakeOutputPage' hook.
• Parameter names may no longer contain '{' or '}', as these are now used for templated parameters.
• (T194950) Added 'ApiMaxLagInfo' hook.
• The following methods now take a RevisionRecord rather than a Revision. No external callers are known.
  • ApiFeedContributions::feedItemAuthor()
  • ApiFeedContributions::feedItemDesc()
  • ApiQueryRevisionsBase::extractRevisionInfo()
• The following deprecated methods have been removed:
  • ApiBase::profileIn() (deprecated in 1.25)
  • ApiBase::profileOut() (deprecated in 1.25)
  • ApiBase::safeProfileOut() (deprecated in 1.25)
  • ApiBase::profileDBIn() (deprecated in 1.25)
  • ApiBase::profileDBOut() (deprecated in 1.25)
  • ApiBase::dieUsage() (deprecated in 1.29)
  • ApiBase::dieUsageMsg() (deprecated in 1.29)
  • ApiBase::dieUsageMsgOrDebug() (deprecated in 1.29)
  • ApiBase::getErrorFromStatus() (deprecated in 1.29)
  • ApiBase::parseMsg() (deprecated in 1.29)
  • ApiBase::setWarning() (deprecated in 1.29)
  • ApiPageSet::getInvalidTitles() (deprecated in 1.26)
  • ApiQueryLogEvents::addLogParams() (deprecated in 1.25)
  • ApiUsageException::getCodeString() (deprecated in 1.29)
  • ApiUsageException::getMessageArray() (deprecated in 1.29)
• Class UsageException, deprecated in 1.29, has been removed.
• ApiErrorFormatter: Added getFormat() and newWithFormat(). In particular, you can now easily test $formatter->getFormat() === 'bc', and then call $formatter->newWithFormat( 'plaintext' ) to get a non-BC formatter.

=== Languages updated in 1.32 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T193566) Added language support for Ambonese Malay (abs).
• (T194047) Added language support for Shawiya, Latin script (shy-latn).
• (T195940) Added language support for Batak Mandailing (btm).
• (T137491) Added language support for Standard Moroccan Amazigh (zgh).
• (T198132) Added language support for Manipuri (mni).
• (T201276) Added language support for Western Armenian (hyw).
• (T201583) Added language support for Mon (mnw).

=== Breaking changes in 1.32 ===

• $wgRequestTime, deprecated in 1.25, was removed. Use $_SERVER['REQUEST_TIME_FLOAT'] or WebRequest::getElapsedTime() instead.
• The MediaWikiI18N class, deprecated in 1.31, was removed.
• QuickTemplate::setTranslator(), deprecated in 1.31, was removed. Use Skin::msg() instead.
• wfInitShellLocale(), deprecated in 1.30, was removed.
• wfShellExecDisabled(), deprecated in 1.30, was removed.
• The type string for the parameter $lang of DateFormatter::getInstance, deprecated in 1.31, was removed.
• The EDIT_TOKEN_SUFFIX constant deprecated in 1.27, was removed. Use MediaWiki\Session\Token::SUFFIX instead.
• EditPage::isOouiEnabled() deprecated in 1.30, was removed.
• mw.util.wikiGetlink(), deprecated in 1.23, was removed. Use mw.util.getUrl() instead.
• (T61113) The following methods and constants from the Revision class, which were deprecated in 1.25, have now been removed:
  • Revision::getRawUser()
  • Revision::getRawUserText()
  • Revision::getRawComment()
• window.gM() from mediawiki.jqueryMsg, deprecated in 1.23, was removed. Use mw.msg() or mw.message() instead.
• mw.util.escapeId(), deprecated in 1.30, was removed. Use mw.util.escapeIdForAttribute or mw.util.escapeIdForLink instead.
• mw.util.updateTooltipAccessKeys(), deprecated in 1.24, was removed. Use jquery.accessKeyLabel instead.
• The SqlDataUpdate class, deprecated in 1.28, has been removed.
• The Html5Internal and Html5Depurate tidy driver classes were removed, along with the Balancer tidy implementation. Both implementations were experimental, and were replaced by RemexHtml.
• (T179624) Job::insert() and ::batchInsert(), deprecated in 1.21, were both removed. Use JobQueueGroup::singleton()->push() instead.
• The jquery.footHovzer module, for mediawiki.debug, was removed.
• The es5-shim module, empty and deprecated since 1.29, was removed.
• the dom-level2-shim module, empty and deprecated since 1.29, was removed.
• the json module, empty and deprecated since 1.29, was removed.
• The mediawiki.widgets.visibleByteLimit module alias, deprecated in 1.32, was removed. Use mediawiki.widgets.visibleLengthLimit instead.
• The jquery.farbtastic module, unused since 1.18, was removed.
• The 'jquery.expandableField' module, unused since 1.22, was removed.
• The hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend' may provide any HTMLForm object rather than PreferencesForm.
• The non namespaced TimestampException class, deprecated in 1.29, was removed. Use Wikimedia\Timestamp\TimestampException instead.
• The global functions codepointToUtf8, hexSequenceToUtf8, utf8ToHexSequence, utf8ToCodepoint, and escapeSingleString (deprecated in 1.25) were removed. The UtfNormal\Utils class from the utfnormal library should be used instead.
• The deprecated UTF8_ and UNICODE_ constants were removed. The class constants from the UtfNormal\Constants class from the utfnormal library should be used
• The protected methods PHPSessionHandler::returnSuccess() and returnFailure(), only needed for PHP5 compatibility, have been removed. It now uses the boolean values true and false respectively.
• The $parserMemc global and wfGetParserCacheStorage(), deprecated since 1.30, were removed. Use the ParserCache class instead.
• ScopedCallback (deprecated in 1.28) was removed. Use Wikimedia\ScopedCallback instead.
• Support for ResourceLoaderModule::getModifiedTime() and getModifiedHash(), deprecated since 1.26, was removed. Use getDefinitionSummary() instead.
• (T195256) Skins are recommended not to rely on JavaScript for the "mw-jump" and "jump-to-nav" accessibility links. To this end, the "jquery.mw-jump" is no longer loaded by default. The Vector and MonoBook skins have made a minor change to implement the toggle feature with CSS instead. To restore prior functionality, either explicitly load "jquery.mw-jump" in your skin or refer to T195256 for details on how to make the same change.
• Hook 'EditPageBeforeEditChecks' was removed; use 'EditPageGetCheckboxesDefinition' instead.
• Linker::getLinkColour() and DummyLinker::getLinkColour(), deprecated since 1.28, were removed. LinkRenderer::getLinkClasses() should be used instead.
• Wikimedia\Rdbms\LoadBalancer::getLaggedSlaveMode(), deprecated in 1.28, has been removed. Use Wikimedia\Rdbms\LoadBalancer::getLaggedReplicaMode() instead.
• mw.widgets.CategoryMultiselectWidget now uses TagMultiselectWidget instead of CapsuleMultiselectWidget. The following methods may no longer be used:
  • setItemsFromData: Use setValue instead
  • getItemsData: Use getItems instead and get the data property
• Two OutputPage methods, addMetadataLink() and getMetadataAttribute(), were removed. Use addLink() instead.
• Another two OutputPage methods, setPageTitleActionText() and getPageTitleActionText(), were removed. They did nothing since 1.15 (almost ten years). Use setHTMLTitle() directly.
• The return value of OutputPage::adaptCdnTTL() has been removed. The value returned was misleading and probably not what any caller would have wanted.
• All MagicWord static member variables have been removed. Use appropriate hooks or MagicWordFactory methods instead.
• MagicWord::clearCache() has been removed. Instead, create a new MagicWordFactory, such as by calling resetServiceForTesting( 'MagicWordFactory' ) on a MediaWikiServices.
• mw.util.init() has been removed. This function is not needed anymore and was a no-op function since 1.30.
• SpecialPageFactory::resetList() is a no-op. Call overrideMwServices() instead.
• MediaWiki no longer supports a StartProfiler.php file. Instead, you can set $wgProfiler and $wgEnableProfileInfo.
• The mw.loader.addSource() is now considered a private method, and no longer supports the id, url signature. Use the Object parameter instead.
• The backwards-compatibility code in HTMLForm to add a drop-down control to an option that is not set to be a drop-down if the "mw-chosen" class is present, is now removed.
• Several collations were removed. They were workarounds for bugs in the ICU library and they are no longer needed (as of ICU 57.1):
  • 'uppercase-se' (NorthernSamiUppercaseCollation) - use 'uca-se' instead
  • 'xx-uca-et' (CollationEt) - use 'uca-et' instead
  • 'xx-uca-fa' (CollationFa) - use 'uca-fa' instead
• LanguageCode::bcp47() now always returns a valid BCP 47 code. This means that some MediaWiki-specific language codes, such as simple, are mapped into valid BCP 47 codes (eg en-simple).
• The hooks 'SpecialRecentChangesFilters' & 'SpecialWatchlistFilters' deprecated in 1.23 were removed. Instead, use 'ChangesListSpecialPageStructuredFilters'. The ChangesListSpecialPage code for these legacy hooks, and their use in SpecialRecentchanges.php and SpecialWatchlist, was also removed:
  • ChangesListSpecialPage->getCustomFilters()
  • ChangesListSpecialPage->getFilterGroupDefinitionFromLegacyCustomFilters()
  • ChangesListSpecialPage::customFilters
• The global function wfUseMW, deprecated since 1.26, has now been removed. Use the "requires" property of static extension registration instead.
• $wgSpecialPages no longer accepts array syntax, deprecated since 1.18.
• The MailAddress constructor can no longer be called with a User object, behaviour which has been deprecated since 1.24.
• LBFactory, deprecated since 1.28, has been removed. Instead, use Wikimedia\Rdbms\LBFactory.
• The MimeMagic class, deprecated since 1.28 has been removed. Get a MimeAnalyzer instance from MediaWikiServices instead.
• The '--tidy' option to maintenance/parse.php has been removed. Tidying the output is now the default. Use '--no-tidy' to bypass the tidy phase.
• The global function wfErrorLog, deprecated since 1.25, has now been removed. Use MWLoggerLegacyLogger::emit or UDPTransport.
• The hooks 'SpecialRecentChangesQuery' & 'SpecialWatchlistQuery', deprecated in 1.23, were removed. Instead, use ChangesListSpecialPageStructuredFilters or ChangesListSpecialPageQuery.
• The global function wfUsePHP, deprecated since 1.30, has now been removed. To assert a newer version of PHP than MediaWiki does, use extension registration.
• The hook 'ChangesListSpecialPageFilters', deprecated in 1.29, has now been removed. Use the 'ChangesListSpecialPageStructuredFilters' hook instead.
• DeferredUpdates::setImmediateMode(), deprecated since 1.29, has been removed.
• File / MediaHandler::getStreamHeaders(), deprecated since 1.30, was removed.
• The hook 'DoEditSectionLink', deprecated since 1.25, has been removed. Use the hook 'SkinEditSectionLinks' instead.
• The hook 'UserGetImplicitGroups', deprecated since 1.25, has been removed.
• The global function wfRunHooks, deprecated since 1.25, has now been removed. Use Hooks::run().
• The hook 'UnknownAction', deprecated since 1.19, has now been removed.
• The hook 'ParserLimitReport', deprecated since 1.22, has been removed. Use the hooks 'ParserLimitReportPrepare' and 'ParserLimitReportFormat' instead.
• The following deprecated API methods have been removed:
  • ApiBase::profileIn() (deprecated in 1.25)
  • ApiBase::profileOut() (deprecated in 1.25)
  • ApiBase::safeProfileOut() (deprecated in 1.25)
  • ApiBase::profileDBIn() (deprecated in 1.25)
  • ApiBase::profileDBOut() (deprecated in 1.25)
  • ApiBase::dieUsage() (deprecated in 1.29)
  • ApiBase::dieUsageMsg() (deprecated in 1.29)
  • ApiBase::dieUsageMsgOrDebug() (deprecated in 1.29)
  • ApiBase::getErrorFromStatus() (deprecated in 1.29)
  • ApiBase::parseMsg() (deprecated in 1.29)
  • ApiBase::setWarning() (deprecated in 1.29)
  • ApiPageSet::getInvalidTitles() (deprecated in 1.26)
  • ApiQueryLogEvents::addLogParams() (deprecated in 1.25)
  • ApiUsageException::getCodeString() (deprecated in 1.29)
  • ApiUsageException::getMessageArray() (deprecated in 1.29)
• Class UsageException, deprecated in 1.29, has been removed.
• MediaWiki no longer has a 'JavaScript-powered' wikitext toolbar built in. The old "bulletin board style toolbar", known as "the 2006 wikitext editor", has been removed, and instead sysadmins will be required to choose one (or more) of the several extensions available for this purpose if they need the functionality. The MediaWiki "tarball" releases have included the replacement extension for this, the WikiEditor extension aka "the 2010 wikitext editor", for many years now. As part of this, several parts of MediaWiki have been removed or simplified:
  • The user option 'showtoolbar' (shown as "Show edit toolbar") is no longer available; if an extension adds a toolbar via the EditPageBeforeEditToolbar hook, it will be shown; extensions should provide a specific user preference to disable themselves as needed.
  • The public methods Language::getImageFile() and ::getImageFiles(), and the related specification of $imageFiles within individual languages' code file, as well as the referenced static media assets, all of which were only used inside MediaWiki itself for providing the icons for the old toolbar, have been removed without explicit deprecation.
  • The internal ResourceLoader module "mediawiki.toolbar", which is unused except by MediaWiki itself and back-compatibility code, has been removed.
  • The internal ResourceLoaderEditToolbarModule class has been removed.

=== Deprecations in 1.32 ===

• HTMLForm::setSubmitProgressive() is deprecated. No need to call it. Submit button is already marked as progressive.
• Skin::setupSkinUserCss() is deprecated. Adding of modules to load has been centralised to Skin::getDefaultModules(), which is now capable of queueing style modules as well.
• OutputPage::addModuleScripts() and ParserOutput::addModuleScripts are deprecated. Use addModules() instead.
• Overriding SearchEngine::{searchText,searchTitle,searchArchiveTitle} in extending classes is deprecated. Extend related doSearch* methods instead.
• The following 'mediawiki.api' plugin modules were merged into mediawiki.api and deprecated: mediawiki.api.category, mediawiki.api.edit, mediawiki.api.login, mediawiki.api.options, mediawiki.api.parse, mediawiki.api.upload, mediawiki.api.user, mediawiki.api.watch, mediawiki.api.messages, and mediawiki.api.rollback.
• ApiBase::truncateArray() is deprecated. No replacement, as nothing is known to use it.
• WatchAction::getUnwatchToken is deprecated. Use WatchAction::getWatchToken with the 'unwatch' action parameter instead.
• IcuCollation::getICUVersion() is deprecated, as you can just use the PHP constant INTL_ICU_VERSION directly in all versions that MediaWiki supports.
• Parser::fetchFile() is deprecated. Use ::fetchFileAndTitle() instead.
• The ApiQueryContributions class has been renamed to ApiQueryUserContribs.
• The XMPInfo, XMPReader, and XMPValidate classes have been deprecated in favor of the namespaced classes provided by the wikimedia/xmp-reader library.
• SearchResultSet::{next,rewind} are deprecated. Calling code should use foreach on the SearchResultSet, or the extractResults method. Extending code should override extractResults.
• Instantiating SearchResultSet directly is deprecated. SearchEngine implementations must subclass SearchResultSet for their purposes.
• SearchResult::setExtensionData argument has been changed from accepting an array to accepting a Closure that returns the array when called.
• Class CryptRand, everything in MWCryptRand except generateHex() and function MediaWikiServices::getInstance()->getCryptRand() are deprecated, use random_bytes() to generate cryptographically secure random byte sequences.
• Parser::getConverterLanguage() is deprecated. Use ::getTargetLanguage() instead.
• Language::markNoConversion() is deprecated. It confused readers because it had unexpected behavior (only marking text if it looked like a URL) and was only used in a single place in the code. Use LanguageConverter::markNoConversion() instead.
• (T197492) Language::truncate() was soft deprecated in 1.31 and is hard deprecated in this release. It has been split into two similar methods, Language::truncateForVisual() and Language::truncateForDatabase(), which measure length in characters and bytes, respectively. Use Language::truncateForVisual() when possible to provide equity to users of multibyte scripts.
• (T176526) EditPage::getContextTitle() falling back to $wgTitle when the context title is unset is now deprecated; anything creating an EditPage instance should set the context title via ::setContextTitle().
• The 'jquery.hidpi' module (polyfill for IMG srcset) is deprecated.
• ResourceLoaderStartUpModule::getStartupModules() and ::getLegacyModules() are deprecated. These concepts are obsolete and have no replacement.
• String type for $lang of DifferenceEngine::setTextLanguage is deprecated.
• The following methods of OutputPage are now deprecated in favour of using showFatalError directly: OutputPage::showFileDeleteError() OutputPage::showFileNotFoundError(), OutputPage::showFileRenameError() OutputPage::showFileCopyError() and OutputPage::showUnexpectedValueError().
• The Replacer, DoubleReplacer, HashtableReplacer, and RegexlikeReplacer classes are now deprecated. Use a Closure instead.
• (T194263) ContentHandler::makeParserOptions() is deprecated. Use WikiPage::makeParserOptions() or ParserOptions::newCanonical() instead.
• (T100681) Use of the Parsoid v1 API with the VirtualRESTService, deprecated in MediaWiki 1.26, is now hard-deprecated. All known clients were converted to the Parsoid v3 API in May 2015.
• $input is deprecated in hook 'LogEventsListGetExtraInputs'. Use $formDescriptor instead.
• SearchEngine::transformSearchTerm( $term ) should no longer be called prior to running searchText. This method was mainly implemented to support the 'prefix' URI param in SpecialSearch, but there are no reasons to expose this logic as it should be handled internally by SearchEngine implementations supporting this feature. SearchEngine implementations should no longer override this methods.
• SearchEngine::replacePrefixes( $query ) should no longer be called prior to running searchText/searchTitle.
• (T199657) Messages for $wgFilterLogTypes labels should be no longer be in the 'log-show-hide-[type]' format. Instead use 'logeventslist-[type]-log'.
• Global functions wfArrayFilter() and wfArrayFilterByKey() are deprecated. use array_filter() directly.
• The $wgShowSQLErrors global is deprecated and nonfunctional. Set $wgShowExceptionDetails and/or $wgShowHostnames instead.
• The $wgShowDBErrorBacktrace global is deprecated and nonfunctional. Set $wgShowExceptionDetails instead.
• Public access to the DifferenceEngine properties mOldid, mNewid, mOldRev, mNewRev, mOldPage, mNewPage, mOldContent, mNewContent, mRevisionsLoaded, mTextLoaded and mCacheHit is deprecated. Use getOldid() / getNewid() / getOldRevision() / getNewRevision() for the first four (note that the revision ones return a RevisionRecord, not a Revision), do your own lookup for page/content.
• The $wgExternalDiffEngine value 'wikidiff2' is deprecated. To use wikidiff2 just enable the PHP extension, and it will be autodetected.
• (T194731) DifferenceEngine properties mOldContent and mNewContent and methods setContent(), generateContentDiffBody(), generateTextDiffBody() and textDiff() are deprecated. To interact with a single slot, use a SlotDiffRenderer (and subclass it to customize diff rendering); to diff custom (e.g. unsaved) content, use setRevisions(). Subclassing DifferenceEngine should only be done to customize page-level diff properties (such as the navigation header).
• The wfUseMW function, soft-deprecated in 1.26, is now hard deprecated.
• All MagicWord static methods are now deprecated. Use the MagicWordFactory methods instead.
• PasswordFactory::init is deprecated. To get a password factory with the standard configuration, use MediaWikiServices::getInstance()->getPasswordFactory.
• $wgContLang is deprecated, use MediaWikiServices::getInstance()->getContentLanguage() instead.
• $wgParser is deprecated, use MediaWikiServices::getInstance()->getParser() instead.
• wfGetMainCache() is deprecated, use ObjectCache::getLocalClusterInstance() instead.
• wfGetCache() is deprecated, use ObjectCache::getInstance() instead.
• All SpecialPageFactory static methods are deprecated. Instead, call the methods on a SpecialPageFactory instance, which may be obtained from MediaWikiServices.
• mw.user.stickyRandomId was renamed to the more explicit mw.user.getPageviewToken to better capture its function.
• Passing Revision objects to ContentHandler::getUndoContent() is deprecated, Content object should be passed instead.
• (T197179) Parameters 'notice', 'notice-messages', 'notice-message', previously used by OOUI HTMLForm fields, are now deprecated. Use 'help', 'help-message', 'help-messages' instead.
• (T197179) HTMLFormField::getNotices() is now deprecated.
• The jquery.localize module is now deprecated. Use jquery.i18n instead.
• The SecondaryDataUpdates hook was deprecated in favor of RevisionDataUpdates, or overriding ContentHandler::getSecondaryDataUpdates (T194038).
• The WikiPageDeletionUpdates hook was deprecated in favor of PageDeletionDataUpdates, or overriding ContentHandler::getDeletionDataUpdates (T194038).
• Content::getSecondaryDataUpdates has been deprecated in favor of ContentHandler::getSecondaryDataUpdates() for overriding by extensions (T194038). Application logic should call WikiPage::doSecondaryDataUpdates() (T194037).
• Content::getDeletionUpdates has been deprecated in favor of ContentHandler::getDeletionUpdates() for overriding by extensions (T194038). Application logic should call WikiPage::doSecondaryDataUpdates() (T194037).
• (T198214) Old Tidy-related configuration settings, which were soft-deprecated in MediaWiki 1.26, have now been hard deprecated. This affects $wgUseTidy, $wgTidyBin, $wgTidyConf, $wgTidyOpts, $wgTidyInternal, and $wgDebugTidy. Use $wgTidyConfig instead.
• All Tidy configurations other than Remex have been hard deprecated; future parsers will not emit compatible output for these configurations. In particular, running MediaWiki with tidy disabled has been deprecated.
• (T198214) OutputPage::addWikiText(), OutputPage::addWikiTextWithTitle(), and OutputPage::addWikiTextTitle() have been deprecated, since they can result in untidy output. In addition OutputPage::addWikiTextTidy() and OutputPage::addWikiTextTitleTidy() was deprecated to make naming new methods consistent. Use OutputPage::addWikiTextAsInterface() or OutputPage::addWikiTextAsContent() instead, which ensures the output is tidy and clarifies whether content-language specific postprocessing should be done on the text.
• OutputPage::parse() and OutputPage::parseInline() have been deprecated due to untidy output and inconsistent handling of wrapper divs and interface/content language defaults. Use OutputPage::parseAsContent(), OutputPage::parseAsInterface(), or OutputPage::parseInlineAsInterface() as appropriate.
• QuickTemplate::msgHtml() and BaseTemplate::msgHtml() have been deprecated as they promote bad practises. I18n messages should always be properly escaped.
• Skin::getDynamicStylesheetQuery() has been deprecated. It always returns action=raw&ctype=text/css which callers should use directly.
• Class LegacyFormatter is deprecated.
• Use of CommentStore::insertWithTempTable() with 'img_description' is deprecated. Use CommentStore::insert() instead.
• Language::setCode is deprecated as public function. Use Language::factory to create a new Language object with a different language code.
• Several classes have been moved from the MediaWiki\Storage\ namespace to the MediaWiki\Revision\ namespace. The old class names are aliased for compatibility, but are deprecated. Classes are IncompleteRevisionException, MutableRevisionRecord, MutableRevisionSlots, RevisionAccessException, RevisionArchiveRecord, RevisionFactory, RevisionLookup, RevisionRecord, RevisionSlots, RevisionStore, RevisionStoreRecord, SlotRecord, and SuppressedDataException.
• When using OOUI HTMLForm containing an 'info' field which uses the 'rawrow' option, it is now deprecated to give its contents (the 'default' option) as a string. They should be given as a OOUI\FieldLayout object instead. Notably, this affects fields defined in the 'GetPreferences' hook, because Special:Preferences uses an OOUI form now. (If possible, don't use 'rawrow'.)
• In Skin::doEditSectionLink omitting the parameters $tooltip and $lang is deprecated. For the $lang parameter, types other than Language are deprecated.
• The $wgUseKeyHeader configuration option and the OutputPage::getKeyHeader() method have been deprecated; the relevant draft IETF spec expired without becoming a standard.
• Deprecated API action=query&prop=info inprop=readable in favor of intestactions=read.

=== Other changes in 1.32 ===

• (T198811) The following tables have had their UNIQUE indexes turned into proper PRIMARY KEYs for increased maintainability: interwiki, page_props, protected_titles and site_identifiers.
• OOUI HTMLForm will now display help text inline after the input field, rather than in a popup. Previous behavior can be restored by using 'help-inline' => false.
• The archive table's ar_rev_id field is now unique.
• Special:BotPasswords now requires reauthentication.
• (T174023) Multi-Content Revision (MCR) capabilities were introduced into the storage layer and have basic support for display. No user interface exists yet for creating or managing content in slots beides the main slot. See https://www.mediawiki.org/wiki/Multi-Content_Revisions for more information.
• The image_comment_temp database table has been removed. Since all access should be mediated by the CommentStore class, this change shouldn't affect external code.
• (T206147) Database::close() will no longer commit any open transactions.
• (T64103) Dropped columns category.cat_hidden, site_stats.ss_admins, and recentchanges.rc_cur_time from the PostgreSQL schema.

= MediaWiki 1.31 =

== MediaWiki 1.31.15 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.14 ===

• (T270988) Fixup issues in SpecialChangeContentModel.php.
• (T278026) rdbms: Add DB_PRIMARY to replace DB_MASTER.
• (T276945) Define a batch size in maintenance/manageJobs.php.
• (T276945) Implement JobQueueDB::getAllAbandonedJobs.
• (T281549) WebInstaller: Don't show the announce-l subscribe checkbox temporarily.
• (T283247) Freenode -> Libera per wikimedia moving from freenode to libera.
• (T280226, CVE-2021-35197) SECURITY: Prevent blocked users from purging pages.

== MediaWiki 1.31.14 ==

This is a maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.13 ===

• Make Title implement IDBAccessObject.

== MediaWiki 1.31.13 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.12 ===

• (T115436) resourceloader: CSSMin::getLocalFileReferences now strips anchors.
• Updating php-parallel-lint/php-parallel-lint (0.9.2 => 1.0.0).
• Updating mediawiki/codesniffer (19.1.0 => 19.4.0).
• DefaultSettings.php: Update $wgPingback documentation.
• PHPVersionCheck: The PHP Group only supports PHP >= 7.3.0.
• (T275261) Escape wikitext in the title in invalid title error messages.
• (T277009, CVE-2021-30158) SECURITY: Allow blocked users to access Special:ResetTokens.
• pageExist.php: Output trailing newlines.
• (T278058, CVE-2021-30157) SECURITY: Escape rcfilters-filter-* messages on ChangesList pages.
• (T277414) HTMLFormField: Use non namespaced class name rather than static::class.
• (T268230) Switch to new MediaWiki logo by Serhio Magpie.
• (T271735) Expand config-pingback-help, link to privacy policy in config-pingback.
• Fix documentation of user-global in $wgRateLimits.
• BackupDumper: Add -o as shortcode for --output.
• (T278014, CVE-2021-30154) SECURITY: Escape mediastatistics-header-* messages on Special:NewFiles.
• (T270713, CVE-2021-30152) SECURITY: Allow user to only apply protection they have right to do so via action=protect.
• (T272386, CVE-2021-30159) SECURITY: Non-admin deleted enwiki page in fast double move.
• (T270988, CVE-2021-30155) SECURITY: ContentModelChange: Check that user can create pages.
• (T276843, CVE-2021-20270, CVE-2021-27291) SECURITY: SyntaxHighlight_GeSHi: Various lexers have been disabled due to DoS vectors.

== MediaWiki 1.31.12 ==

This is a maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.11 ===

• Fixed issues relating to User::isRegistered() not existing in 1.31.

== MediaWiki 1.31.11 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.10 ===

• Fix undefined $wgRedirectOnLogin.
• (T251661, T265313) CentralIdLookup::factoryNonLocal can return null.
• (T263592) media: Fix case of FlashPixVersion in FormatMetadata::makeFormattedData().
• (T265223) BaseTemplate: Guard against passing zero arg to array_merge().
• (T266418) composer.json: add requirement for composer-plugin-api ^1.1.
• (T260631, T260633), BotPassword::save() now returns a Status object for the result rather than a bool. The length of the bot password grants and restriction fields are now validated, and an error will be thrown if it would be truncated by the database.
• (T264536, T233012) SectionProfiler: Do not attempt to use null values as arrays.
• (T269178) MemcachedClient: Cast Resource to integer.
• (T268917, CVE-2020-35475) SECURITY: Use Xml::element in SpecialUserrights for sanity.
• (T268938, CVE-2020-35479) SECURITY: BlockLogFormatter can output raw html.
• (T205908, CVE-2020-35477) SECURITY: Unable to change visibility of log entries when MediaWiki:Mainpage uses Special:MyLanguage.
• (T120883, CVE-2020-35480) SECURITY: Divergent behavior for contributions and user pages of hidden users and missing users.

== MediaWiki 1.31.10 ==

This is a maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.9 ===

• Fixed issues relating to backporting of changes for T260485.

== MediaWiki 1.31.9 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.8 ===

• In the web installer, use secure session cookies.
• (T257207) shell: Expand documentation in firejail.profile.
• Added $wgForceHTTPS, which makes the HTTP to HTTPS redirect be unconditional and suppresses various hacks needed to support mixed HTTP/HTTPS wikis. We recommend this be set to true on pure HTTPS wikis.
• Added $wgCookieSameSite, which allows login cookies to be sent with SameSite=None. This is required for cross-site CentralAuth autologin after Chrome 84.
• Added $wgUseSameSiteLegacyCookies, which adds a compatibility hack to SameSite=None cookies for browsers which implemented an incompatible draft version of the specification.
• (T191537) Disable WebResponse setters for post-send processing.
• (T198525) WebReponse: Use values altered in 'WebResponseSetCookie' hook.
• Fix runBatchedQuery.php for no result from select.
• (T130906) Add Edge to MediaWiki:Clearyourcache.
• Use IPset in MWRestrictions::checkIP.
• (T260031) Add application/font-sfnt to MimeMap for ttf files.
• shell: Make ->restrict( RESTRICT_NONE ) actually work.
• (T183759) Fixes shell edge-cases in Windows.
• (T258390) Add CentralIdLookup::factoryNonLocal().
• (T246991) User: Fix pingLimiter() to use makeGlobalKey() for global rate limits.
• (T251661, CVE-2020-25827) SECURITY: User::pingLimiter: add user-global rate limit type.
• (T246991) User: enforce pingLimiter() expiry time.
• (T260232) don't include null page ids in query list for category dumps.
• (T251506) Sanitizer: Truncate IDs to a reasonable length.
• Explicitly wrap some XML calls in libxml_disable_entity_loader().
• (T263455 T247285) Set EnableJavaScriptTest to true in includes/DevelopmentSettings.php.
• (T232568, CVE-2020-25813) SECURITY: Special:UserRights exposes the existence of hidden users.
• (T258763, CVE-2020-17367, CVE-2020-17368) SECURITY: Prevent invoking firejail's --output functionality.
• (T86738, CVE-2020-25814) SECURITY: mediawiki.jqueryMsg: Sanitize URLs and 'style' attribute.
• (T115888, CVE-2020-25828) SECURITY: mediawiki.js: Escape HTML in mw.message( ... ).parse().
• (T260485, CVE-2020-25869) SECURITY: ActorMigration: Load user from the correct database.
• (T260485, CVE-2020-25869) SECURITY: ensure actor ID from correct wiki is used.

== MediaWiki 1.31.8 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.7 ===

• (T199809) Don't invalidate BotPasswords if a password reset email is sent.
• (T247017) PasswordReset performance improvements.
• (T250568) Work around change in SimpleXMLElement behavior introduced in PHP 7.3.17.
• Remove some rotten and out of date documentation.
• (T252311) Improvements to some older SQLite update patches.
• (T240307) Minor fixes to extension.schema.v2.json and extension.schema.v1.json.
• (T199474) Set rc_patrolled to 2 for autopatrolled changes in rebuildrecentchanges.php.
• (T229461) Update the change_tag table in rebuildrecentchanges.php.
• (T206476) Call ob_start() before running tests.
• (T234450) Per-user concurrency in SpecialContributions can now be limited by setting $wgPoolCounterConf['SpecialContributions'] appropriately.
• (T248947) SECURITY: img_auth.php may leak private extension images into the public cache.

== MediaWiki 1.31.7 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.6 ===

• (T193565, T234022) Re-add DB domain sanity checks to LoadBalancer.
• Use proper SemVer comparison in CheckComposerLockUpToDate.
• (T212738) Add the MW_VERSION constant, global $wgVersion is soft deprecated.
• Update comment about PHP versions supported by The PHP Group.
• (T247215) Fix output of RecountCategories::doWork().
• Add check for page existence to view.php maintenance script.
• (T247580) Disable some broken Selenium tests.
• (T236509) SECURITY: Fix HTML escaping in UserGroupMembership::getLink().
• (T246602) SECURITY: jquery.makeCollapsible allows applying event handler to any CSS selector.

== MediaWiki 1.31.6 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.5 ===

• (T181658) Do not insert page titles into querycache.qc_value.
• (T206013) Suppress errors when reading invalid XML file properties.
• (T237931) Remove references to pg_attrdef.adsrc in Postgres code.
• Use correct value for 'sslmode' in DatabasePostgres.
• (T232866) Fix support for HTTP/2 in MultiHttpClient.
• (T227461) Stop calling deprecated Redis delete functions.
• (T239561) Mark options as requiring parameters in addSite.php.
• (T239734) Replace deprecated lSize with lLen in Redis code.
• (T192134) SECURITY: Do not allow user scripts on Special:PasswordReset.
• (T239428) ApiEditPage: Test for bad redirect targets.
• (T233342) rdbms: Log debug message traces as 'exception.trace' instead of 'trace'.
• (T226751) media: Log and fail gracefully on invalid EXIF coordinates.
• (T212067) Work around PHP bug in parse_url.

== MediaWiki 1.31.5 ==

This is a maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.4 ===

• Fix extra newlines in installer.
• Followup T230402, PermissionManager doesn't exist until 1.33, so fix the backported patches to use User::isAllowed() instead.

== MediaWiki 1.31.4 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.3 ===

• (T207100) Updated LanguageTr for dotted and dotless I in PHP 7.3.
• The ImgAuthModifyHeaders hook was added to img_auth.php to allow modification of headers in private wikis.
• (T230402) SECURITY: Add permission check for suppressed account to Special:Redirect.
• Add helper for HTTPFileStreamer header syntax.
• (T118799) Fix XMP parser errors due to trailing nullchar.
• (T233119) Improve documentation for the MinimumPasswordLengthToLogin policy.
• (T202183) Give more specific error messages on Special:Redirect.
• Cache redirects from Special:Redirect.
• (T231386) dispatchUser() should use a 302 http status code.
• (T227662) Split down patch-comment-table.sql and patch-actor-table.sql into separate files to help allieviate potential migration problems.
• Make SQLite's patch-add-3d.sql a no-op to prevent clobbering other database updates.

== MediaWiki 1.31.3 ==

This is a maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.2 ===

• (T225558) Update installer link to PHP intl.
• (T225496) Detect APC for MainCacheType in CLI installer.
• (T226766) Remove jetbrains/phpstorm-stubs from composer dev dependencies.
• (T202211) Fix SQLite patch-(image|page|template)links-fix-pk.sql column order.

== MediaWiki 1.31.2 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

Required PHP version has been increased from 7.0.0 to 7.0.13.

=== Changes since MediaWiki 1.31.1 ===

• (T204729) WatchedItemStore::countVisitingWatchersMultiple() shouldn't query all titles when asked for none.
• (T205967) Fix syntax error typo in postgres database upgrade file.
• (T200254) Add pear/Net_SMTP 1.7.3 to composer dependencies.
• (T206765) Load installer i18n when running update.php.
• (T109121) Remove deprecated pear/mail_mime-decode from composer suggested libraries. [Also in the bundled composer /vendor directory.]
• Various PHP 7.2 and 7.3 compatibility fixes:
  • (T200595, T206974) Fix PHP 7.3 warnings of using "continue" in some scenarios instead of "break".
    • (T206976, T206977) Also in the bundled LocalisationUpdate and ParserFunctions extensions.
  • (T206979) Fix PHP 7.3 warnings of using "compact()" when some variables may not be set.
  • (T215632) FormatMetadata and UploadStash regexes fixed to be PHP 7.3-compatible.
  • Fix PHP warnings "preg_replace(): [...] invalid range in character class.
  • Avoid PHP 7.2 warnings in DBConRefTest about count() on non-Countable.
  • Suppress "Headers already sent" in PHP 7.2 too.
  • (T206476) Output only to stderr in unit tests.
  • (T207112) Add session_write_close() calls to SessionManager tests.
  • oyejorge/less.php replaced with our fork wikimedia/less.php
  • (T209756) Updated wikimedia/ip-set from 1.2.0 to 1.3.0.
  • (T213489) Avoid session double-start in Setup.php.
  • (T206975) Switch to our fork of less.php.
• (T207540) Include IP address in "Login for $1 succeeded" log entry.
• (T201781) Database: Allow selectFieldValues() to accept SQL fragments.
• (T205765) installer: Don't link to the obsolete "Extension Matrix" page.
• (T206013) Update ImportableUploadRevisionImporter for interwiki usernames.
• (T207541) Pass an email address, not a MailAddress, to mail().
• (T207603) SECURITY: User JS may no longer be loaded with mime type text/javascript if there is no account associated with the username.
• (T112937, T113042) SECURITY: Do not allow loading pages raw with a text/javascript MIME type if non-admins can edit the page.
• (T17491) <ins>/<del> elements can be phrasing or flow.
• (T200827) RemexCompatMunger: Don't call endTag() in case B/b
• (T207088) Upgrade wikimedia/remex-html to 2.0.1. [Also in the bundled composer /vendor directory.]
• (T194052) Updated wikimedia/base-convert from 1.0.1 to 2.0.0. [Also in the bundled composer /vendor directory.]
• (T199494) Fix notices in maintenance/removeUnusuedAccounts.php.
• Require ext-fileinfo in composer.json, per PHPVersionCheck.
• (T176390) Bundled LocalisationUpdate extension: Handle exceptions from GitHubFetcher.
• (T208255) Completion search should not change the search query.
• (T209870) Fix SQL syntax error in MS-SQL initialisation file for new wikis.
• (T185049) LogFormatter: Fail softer when trying to link an invalid titles.
• (T210998) Properly set $wgLanguageCode in the generated LocalSettings.php if --lang is used with the command-line installer (install.php).
• (T211061) ImageListPager: Actor migration for buildQueryConds().
• (T209335) Clarify the default sidebar 'Help' link is about MediaWiki itself.
• Fix addition of ug_expiry column to user_groups table on MSSQL.
• (T204767) Add join conditions to ActiveUsersPager.
• (T210621) User: Bypass repeatable-read when creating an actor_id.
• (T204531) rdbms: reduce LoadBalancer replication log spam.
• (T195525) Fix db error outage page.
• (T208871) The hard-coded Google search form on the database error page was removed.
• (T176097) Fix flaky MessageBlobStoreTest assertion failures.
• (T209423) Update required PHP version to 7.0.13.
• (T209885) Prevent populateSearchIndex.php from breaking once actor migration has been started.
• (T216968) Return pageid as int in both list=iwbacklinks and list=langbacklinks.
• (T215169) Fix for Database::update() with IGNORE option fails on PostgreSQL.
• (T204423) Backport support for hyphenated DB names in JobQueueGroup.
• (T199474) Fix typo in rebuildrecentchanges.php resulting in rogue flags.
• (T218608) SECURITY: Fix an issue that prevents Extension:OAuth working when $wgBlockDisablesLogin is true.
• (T216029) Chrome redirects to Special:BadTitle after editing a section with a non-Latin name on a page with non-Latin characters in title.
• (T219728) Added support for new Japanese era name "Reiwa".
• (T25227) SECURITY: action=logout now requires to be posted and have a csrf token.
• Updated cssjanus/cssjanus from 1.2.0 to 1.3.0.
• (T222385) resourceloader: Use AND instead of OR for upsert conds in saveFileDependencies().
• (T224374) Fix message parameters so that the message that says SQLite is out of date makes sense.
• SpecialPage::checkLoginSecurityLevel() will now preserve POST data when reauthenticating.
• FormSpecialPage::execute() will now call checkLoginSecurityLevel() if getLoginSecurityLevel() returns non-false.
• (T197279) SECURITY: Fix reauth in Special:ChangeEmail.
• (T208881) SECURITY: blacklist CSS var().
• (T209794) SECURITY: rate-limit and prevent blocked users from changing email.
• (T199540) SECURITY: API: Respect $wgBlockCIDRLimit in action=block.
• (T212118) SECURITY: Fix cache mode for (un)patrolled recent changes query.
• (T222036, T222038) SECURITY: Add permission check for user is permitted to view the log type.
• (T221739) SECURITY: resources: Patch jQuery 3.2.1 for CVE-2019-11358.

== MediaWiki 1.31.1 ==

This is a security and maintenance release of the MediaWiki 1.31 branch.

=== Changes since MediaWiki 1.31.0 ===

• (T169545, CVE-2018-0503) SECURITY: $wgRateLimits entry for 'user' overrides 'newbie'.
• (T194605, CVE-2018-0505) SECURITY: BotPasswords can bypass CentralAuth's account lock.
• (T199029, CVE-2018-13258) SECURITY: Tarball was missing .htaccess files.
• (T197229) Bundle Nuke extension, it was accidentally omitted.
• (T193995) Fix undefined patchPath() method call in parser tests.
• (T198687) Fix various selectFields methods to use the string 'NULL', not null.
• Special:BotPasswords now requires reauthentication.
• (T191608, T187638) Add 'logid' parameter to Special:Log.
• (T193829) Indicate when a Bot Password needs reset.
• (T198037) GitInfo: Don't try shelling out if it's disabled.
• (T151415) Log email changes.
• (T197206) Fix performance regression when multiple DB used without caching.
• (T197030) PHPSessionHandler: Suppress headers warnings in initialize().
• (T182377, T196793) Exif: Guard against uncountable tag values.
• (T200861) Fix total breakage of SQLite web upgrade.
• (T200864) Fix pingback over-reporting on non-MySQL databases
• (T202550) Unbreak SpecialListusersHeaderForm and SpecialListusersHeader hooks.

== MediaWiki 1.31.0 ==

=== Changes since MediaWiki 1.31.0-rc.2 ===

• (T195783) Initialize PSR-4 namespaces at same stage as normal autoloader.
• (T196092) Hide MySQL binary/utf-8 charset option in the installer.
• (T196185) Don't allow setting $wgDBmysql5 in the installer.
• (T196125) php-memcached 3.0 (provided with PHP 7.0) is now supported.
• (T182366) UploadBase::checkXMLEncodingMissmatch() now works on PHP 7.1+
• (T118683) Fix exception from &$user deref on HHVM in the TitleMoveComplete hook.
• (T196672) The mtime of extension.json files is now able to be zero
• (T180403) Validate $length in padleft/padright parser functions.
• (T143790) Make $wgEmailConfirmToEdit only affect edit actions.

=== Changes since MediaWiki 1.31.0-rc.0 ===

• (T33223) Drop archive.ar_text and ar_flags.
• Add default edit rate limit of 90 edits/minute for all users.
• (T187645) Use codepoint as tiebreaker when getting first-letters in IcuCollation.
• (T191947) Don't shell during the installer if shelling out is disabled.
• (T194319) Improve duplicate config setting exception as part of extension registration.
• (T195211) Don't require trailing slash in PSR-4 autoloader directory.
• (T186565) Fix PHP Notice from ob_end_flush() in FileRepo::streamFile().
• Do not incorrectly hide namespace input field in the installer.
• (T186456) Refactor checks looking for PEAR maik libraries to be clearer.

=== Important pre-upgrade notes for 1.31 ===

• If you're using MySQL, SQLite, or MSSQL, are not using update.php to apply schema changes, and cannot have downtime to run migrateArchiveText.php and apply patch-drop-ar_text.sql manually, you'll have to apply a default value to the ar_text and ar_flags columns of the archive table or make those columns nullable before upgrading to MediaWiki 1.31. maintenance/archives/patch-nullable-ar_text.sql shows how to do this for MySQL.

=== Configuration changes in 1.31 ===

• $wgEnableAPI and $wgEnableWriteAPI are now deprecated and will be removed in a future version. The API is now considered to be stable, secure and essential.
• $wgUsejQueryThree was removed, as it is now the default. This was documented as a temporary variable during the migration period, deprecated since 1.29.
• $wgLogoHD has been updated to support svg images and uses $wgLogo where possible for fallback images such as png.
• (T44246) $wgFilterLogTypes will no longer ignore 'patrol' when user does not have the right to mark things patrolled.
• Wikis that contain imported revisions or CentralAuth global blocks should run maintenance/cleanupUsersWithNoId.php.
• The configuration settings $wgResourceLoaderMinifierStatementsOnOwnLine and $wgResourceLoaderMinifierMaxLineLength, deprecated since 1.27, were removed.
• (T180921) $wgReferrerPolicy now supports having fallbacks for browsers that are not using the latest version of the Referrer Policy specification.
• $wgFragmentMode is now set to [ 'legacy', 'html5' ] by default. This is a first step of migration to human-readable section IDs that will later result in 'html5' being the default mode.
• CACHE_ACCEL now only supports APC(u) or WinCache. XCache support was removed as upstream is inactive and has no plans to move to PHP 7.
• The old CategorizedRecentChanges feature, including its related configuration option $wgAllowCategorizedRecentChanges, has been removed.
• (T188472) The 'comma' value for $wgArticleCountMethod is no longer supported for performance reasons, and installations with this setting will now work as if it was configured with 'any'.
• (T185753) MediaWiki now defaults to using RemexHtml to tidy up user input, rather than being off by default. If you wish to disable HTML tidying entirely, set $wgTidyConfig to null; if you wish to use the old, deprecated Tidy external binary, both set $wgTidyConfig to null and $wgUseTidy to true.
• $wgLogAutopatrol now defaults to false instead of true.
• $wgValidateAllHtml was removed and will be ignored.
• $wgScriptExtension, deprecated and ignored since 1.25, was removed. See the 1.25 release notes for more information.
• $wgUseAjax is now marked as deprecated, just like the deprecated AJAX framework that it enables. Some extensions mistakenly used this to check whether any AJAX functionality at all should be enabled, further making this problematic to retain.
• $wgDBmysql5 is now deprecated, and will be removed in a future version. It has been marked as experimental ever since it was introduced.

=== New features in 1.31 ===

• (T76554) User sub-pages named ….json are now protected in the same way that ….js and ….css pages are, so that configuration options can safely be placed there.
• Wikimedia\Rdbms\IDatabase->select() and similar methods now support joins with parentheses for grouping.
• As a first pass in standardizing dialog boxes across the MediaWiki product, Html class now provides helper methods for messageBox, successBox, errorBox and warningBox generation.
• (T9240) Imports will now record unknown (and, optionally, known) usernames in a format like "iw>Example".
• (T20209) Linker (used on history pages, log pages, and so on) will display usernames formed like "iw>Example" as interwiki links, as if by wikitext like [[iw:User:Example|iw>Example]].
• (T111605) The 'ImportHandleUnknownUser' hook allows extensions to auto-create users during an import.
• Added a hook, ParserOutputPostCacheTransform, to allow extensions to affect the ParserOutput::getText() post-cache transformations.
• Added a hook, UploadForm:getInitialPageText, to allow extensions to alter the initial page text for file uploads.
• (T181651) The info page for File pages now displays the file's base-16 SHA1 hash value in the table of basic information.
• Style tags with a 'data-mw-deduplicate' attribute will be deduplicated as a ParserOutput::getText() post-cache transformation. This may be disabled by passing 'deduplicateStyles' => false to that method.
• The identity of the logged-in or IP "actor" for logged actions is being moved into a new actor table, with the rows in tables such as revision and logging referring to the actor ID instead of storing the user ID and name/IP in every row.
  • This is currently gated by $wgActorTableSchemaMigrationStage. Most wikis can set this to MIGRATION_NEW and run maintenance/migrateActors.php as soon as any necessary extensions are updated.
  • Most code accessing rows for logged actions from the database should use the relevant getQueryInfo() methods to get the information needed to build the SQL query. The ActorMigration class may also be used to get feature -flagged information needed to access actor-related fields during the migration period.
• Added Wikimedia\Rdbms\IDatabase::cancelAtomic(), to roll back an atomic section without having to roll back the whole transaction.
• Wikimedia\Rdbms\IDatabase::doAtomicSection(), non-native ::insertSelect(), and non-MySQL ::replace() and ::upsert() no longer roll back the whole transaction on failure.
• (T189785) Added a monthly heartbeat ping to the pingback feature.
• The CLI installer (maintenance/install.php) learned to detect and include extensions. Pass --with-extensions to enable that feature.
• (T184791) rc_patrolled now has three states: "0" for unpatrolled, "1" for manually patrolled and "2" for autopatrolled actions.
• Extensions can now set their type to "editor" if they provide an editor or enhance the editing experience.
• Extensions can use a PSR-4 autoloader by setting an "AutoloadNamespaces" property in extension.json. See the documentation at https://mediawiki.org/wiki/Manual:Extension.json/Schema#AutoloadNamespaces for more details and an example.
• (T19099) Tabs which link to pages that don't exist (like those to uncreated discussion pages) now have a tooltip to indicate state, not just colour.

=== External library changes in 1.31 ===

• pear/mail, pear/mail_mime and pear/mail_mime-decode have been moved from suggested to required. These packages now must be installed via composer and not via PEAR itself.

==== Upgraded external libraries ====

• Updated jquery.chosen from v0.9.14 to v1.8.2.
• Updated composer/spdx-licenses from 1.1.4 to 1.3.0 (development dependency).
• Updated nikic/php-parser from 2.1.0 to 3.1.3 (development dependency).
• Updated wikimedia/ip-set from 1.1.0 to 1.2.0.
• Updated wikimedia/relpath from 2.0.0 to 2.1.1.
• Updated wikimedia/running-stat from 1.1.0 to 1.2.0.
• Updated wikimedia/wrappedstring from 2.2.0 to 2.3.0.
• Updated mediawiki/at-ease from 1.1.0 to 1.2.0.
• Updated wikimedia/php-session-serializer from 1.0.4 to 1.0.6.
• Updated wikimedia/remex-html from 1.0.2 to 1.0.3.
• Updated wikimedia/html-formatter from 1.0.1 to 1.0.2.

==== New external libraries ====

• Added wikimedia/object-factory 1.0.0

==== Removed and replaced external libraries ====

• (T17845) The deprecated 'jquery.badge' module was removed.
• The deprecated 'jquery.autoEllipsis' module was removed. Use the CSS text-overflow property instead.
• The deprecated 'jquery.placeholder' module was removed.
• The deprecated 'jquery.appear' module was removed. Use the 'mediawiki.viewport' module instead.
• mediawiki/at-ease was replaced with wikimedia/at-ease.

=== Bug fixes in 1.31 ===

• (T90902) Non-breaking space in header ID breaks anchor.
• (T189375) CSSMin now allows quoted urls in url() syntax to start with a space.
• (T2087, T10897, T87753, T174639) Whitespace created by category and language links is now stripped rather than leaving blank lines in odd places.
• (T3780) Uploads with UTF-8 names now work on PHP7.1+ on Windows servers.
• (T182366) UploadBase::checkXMLEncodingMissmatch() now works on PHP 7.1+

=== Action API changes in 1.31 ===

• (T185058) The 'name' value to tgprop for action=query&list=tags has been removed. It has never made a difference in the output, the name was always returned regardless.
• The 'watch' and 'unwatch' parameters for action=move have been removed. They were deprecated and also accidentally nonfunctional since 1.17 in 2010. Use 'watchlist' instead.

=== Action API internal changes in 1.31 ===

• ApiBase::getProfileDBTime, deprecated since 1.25, was removed.
• ApiBase::getModuleProfileName, deprecated since 1.25, was removed.
• ApiBase::getProfileTime, deprecated since 1.25, was removed.

=== Languages updated in 1.31 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T180052) Mirandese (mwl) now supports gendered NS_USER/NS_USER_TALK.
• (T182305) New language support: Nyungar (nys).
• (T186359) New language support: Siberian Tatar [себертатар] (sty).
• (T186635) New language support: Guianan Creole (gcr).
• (T186647) New language support: Kumyk [къумукъ] (kum).
• (T187750) New language support: Spanish formal address (es-formal).
• (T187824) New language support: Hungarian formal address (hu-formal).
• (T189127) New language support: Gorontalo (gor).

=== Breaking changes in 1.31 ===

• MessageBlobStore::insertMessageBlob(), deprecated in 1.27, was removed.
• The OutputPage class constructor now requires a context parameter. Instantiating without context was deprecated in 1.18.
• The mw.page JavaScript singleton, deprecated in 1.30, was removed.
• Article::getLastPurgeTimestamp(), WikiPage::getLastPurgeTimestamp(), and the related WikiPage::PURGE_* constants, deprecated in 1.29, were removed.
• The Article::selectFields(), ::onArticleCreate(), ::onArticleDelete(), and ::onArticleEdit() methods, deprecated in 1.24, were removed.
• Installer::locateExecutable() and ::locateExecutableInDefaultPaths() were removed. Use ExecutableFinder::findInDefaultPaths() instead.
• The deprecated MW_DIFF_VERSION constant was removed. DifferenceEngine::MW_DIFF_VERSION should be used instead.
• Due to significant refactoring, method ContribsPager::getUserCond() that had no access restriction has been removed.
• The Block class will no longer accept usable-but-missing usernames for 'byText' or ->setBlocker(). Callers should either ensure the blocker exists locally or use a new interwiki-format username like "iw>Example".
• The following methods and constants from the WatchedItem class, which were deprecated in 1.27, have been removed:
  • WatchedItem::getTitle()
  • WatchedItem::fromUserTitle()
  • WatchedItem::addWatch()
  • WatchedItem::removeWatch()
  • WatchedItem::isWatched()
  • WatchedItem::duplicateEntries()
  • WatchedItem::IGNORE_USER_RIGHTS
  • WatchedItem::CHECK_USER_RIGHTS
  • WatchedItem::DEPRECATED_USAGE_TIMESTAMP
• The $statementsOnOwnLine parameter of JavaScriptMinifier::minify was removed. $wgResourceLoaderMinifierStatementsOnOwnLine, the corresponding configuration variable, has been deprecated since 1.27 and was removed as well.
• The $maxLineLength parameter of JavaScriptMinifier::minify was removed. $wgResourceLoaderMinifierMaxLineLength, the corresponding configuration variable, has been deprecated since 1.27 and was removed as well.
• The HtmlFormatter class, deprecated in 1.27, was removed. The namespaced HtmlFormatter\HtmlFormatter class should be used instead.
• The driver 'mysql' for MySQL, deprecated in MediaWiki 1.30, has been removed. The driver has been deprecated since PHP 5.5 and was removed in PHP 7.0. The default driver for MySQL has been 'mysqli' since MediaWiki 1.22.
• The following properties of PreparedEdit were deprecated in 1.21 and have been removed:
  • PreparedEdit->newText
  • PreparedEdit->oldText
  • PreparedEdit->pst
• ParserOutput objects which are generated using a non-default value for ParserOptions::setWrapOutputClass() can no longer be added to the parser cache.
• The following deprecated methods from the OutputPage class have been removed:
  • OutputPage::addExtensionStyle(); deprecated in 1.27
  • OutputPage::getExtStyle(); deprecated in 1.27
  • OutputPage::setETag(); deprecated in 1.28 (obsolete no-op)
  • OutputPage::setSquidMaxage(); deprecated in 1.27
  • OutputPage::readOnlyPage(); deprecated in 1.25
  • OutputPage::rateLimited(); deprecated in 1.25
  • Additionally, the protected OutputPage::$mExtStyles array, only accessed through the above and with no known uses, was removed.
• The no-op method Skin::showIPinHeader(), deprecated in 1.27, was removed.
• The following variables and methods in EditPage, deprecated in MediaWiki 1.30, were removed:
  • $isCssJsSubpage — use ::isUserConfigPage()
  • $isCssSubpage — use ::isUserCssConfigPage()
  • $isJsSubpage — use ::isUserJsConfigPage()
  • $isWrongCaseCssJsPage – use ::isWrongCaseUserConfigPage()
  • ::getSummaryInput() – use ::getSummaryInputWidget()
  • ::getSummaryInputOOUI() – use ::getSummaryInputWidget()
  • ::getCheckboxes() – use ::getCheckboxesWidget() or ::getCheckboxesDefinition()
  • ::getCheckboxesOOUI() – use ::getCheckboxesWidget() or ::getCheckboxesDefinition()
• ResourceLoaderModule::getPosition(), deprecated in 1.29, has been removed.
• In User, the cookie-related methods which were wrappers for the functions on the response object, and were deprecated in 1.27, have been removed:
  • ::setCookie()
  • ::clearCookie()
  • ::setExtendedLoginCookie() Note that User::setCookies() remains, and is not deprecated.
• Also in User, some auth-related methods which were deprecated in 1.27 have been removed:
  • ::getEditTokenTimestamp() – use MediaWiki\Session\Token::getTimestamp()
  • ::getPasswordFactory() – create a PasswordFactory directly
  • ::passwordChangeInputAttribs()
• The global functions wfProfileIn and wfProfileOut, deprecated in 1.25, have been removed.
• SpecialPageFactory::getList(), deprecated in 1.24, has been removed. You can use ::getNames() instead.
• OpenSearch::getOpenSearchTemplate(), deprecated in 1.25, has been removed. You can use ApiOpenSearch::getOpenSearchTemplate() instead.
• The global function wfBaseConvert, deprecated in 1.27, has been removed. Use Wikimedia\base_convert() directly.
• Calling Database::begin() explicitly during an implicit transaction or when DBO_TRX is set results in an exception. Calling Database::commit() explicitly for an implicit transaction also results in an exception. Previously these were logged as errors. The startAtomic() and endAtomic() methods, or AtomicSectionUpdate should be used instead.
• The global function wfOutputHandler() was removed, use the its replacement MediaWiki\OutputHandler::handle() instead. The global function was only sometimes defined. Its replacement is always available via the autoloader.
• ChangeTags::listExtensionActivatedTags and ::listExtensionDefinedTags, deprecated in 1.28, have been removed. Use ::listSoftwareActivatedTags() and ::listSoftwareDefinedTags() instead.
• Title::getTitleInvalidRegex(), deprecated in 1.25, has been removed. You can use MediaWikiTitleCodec::getTitleInvalidRegex() instead.
• HTMLForm & VFormHTMLForm::isVForm(), deprecated in 1.25, have been removed.
• The ProfileSection class, deprecated in 1.25 and unused, has been removed.
• The ResourceLoaderGetLessVars hook, deprecated in 1.30, has been removed. Use ResourceLoaderModule::getLessVars() to expose local variables instead of global ones.
• As part of work to modernise user-generated content clean-up, a config option and some methods related to HTML validity were removed without deprecation. The public methods MWTidy::checkErrors() and the path through which it was called, TidyDriverBase::validate(), are removed, as are the testing methods MediaWikiTestCase::assertValidHtmlSnippet() and ::assertValidHtmlDocument(). The $wgValidateAllHtml configuration option is removed and will be ignored.
• Execution of external programs using MediaWiki\Shell\Command now applies the RESTRICT_DEFAULT Firejail restriction by default.
• The ResourceLoaderModule::getHashMtime() and ::getDefinitionMtime() methods, deprecated in 1.26, were removed.
• The deprecated 'mediawiki.widgets.CategorySelector' module alias was removed. Use the 'mediawiki.widgets.CategoryMultiselectWidget' module directly.

=== Deprecations in 1.31 ===

• The Revision class was deprecated in favor of RevisionStore, BlobStore, and RevisionRecord and its subclasses.
• The global function wfBCP47 is deprecated in favour of LanguageCode::bcp47.
• The global function wfCountDown is now deprecated in favor of Maintenance::countDown.
• Several methods for returning lists of fields to select from the database have been deprecated in favor of similar methods that also return the tables to select from and the join conditions for those tables.
  • Block::selectFields() → Block::getQueryInfo()
  • RecentChange::selectFields() → RecentChange::getQueryInfo()
  • ArchivedFile::selectFields() → ArchivedFile::getQueryInfo()
  • LocalFile::selectFields() → LocalFile::getQueryInfo()
  • LocalFile::getCacheFields() with a prefix no longer works
  • LocalFile::getLazyCacheFields() with a prefix no longer works
  • OldLocalFile::selectFields() → OldLocalFile::getQueryInfo()
  • RecentChange::selectFields() → RecentChange::getQueryInfo()
  • Revision::userJoinCond() → Revision::getQueryInfo( [ 'user' ] )
  • Revision::selectUserFields() → Revision::getQueryInfo( [ 'user' ] )
  • Revision::pageJoinCond() → Revision::getQueryInfo( [ 'page' ] )
  • Revision::selectPageFields() → Revision::getQueryInfo( [ 'page' ] )
  • Revision::selectTextFields() → Revision::getQueryInfo( [ 'text' ] )
  • Revision::selectFields() → Revision::getQueryInfo()
  • Revision::selectArchiveFields() → Revision::getArchiveQueryInfo()
  • User::selectFields() → User::getQueryInfo()
  • WikiPage::selectFields() → WikiPage::getQueryInfo()
• Revision::setUserIdAndName() was deprecated.
• Access to TitleValue class properties was deprecated, the relevant getters should be used instead.
• DifferenceEngine::getDiffBodyCacheKey() is deprecated. Subclasses should override DifferenceEngine::getDiffBodyCacheKeyParams() instead.
• Use of Maintenance::error( $err, $die ) to exit script was deprecated. Use Maintenance::fatalError() instead.
• Passing a ParserOptions object to OutputPage::parserOptions() is deprecated.
• The RevisionInsertComplete hook is now deprecated; use instead the hook RevisionRecordInserted. RevisionInsertComplete is still called, but the second and third parameter will always be null. Hard deprecation is scheduled for 1.32.
• The following methods that get and set ParserOutput state are deprecated. Callers should use the new stateless $options parameter to ParserOutput::getText() instead.
  • ParserOptions::getEditSection()
  • ParserOptions::setEditSection()
  • ParserOutput::getEditSectionTokens()
  • ParserOutput::setEditSectionTokens()
  • ParserOutput::getTOCEnabled()
  • ParserOutput::setTOCEnabled()
  • OutputPage::enableSectionEditLinks()
  • OutputPage::sectionEditLinksEnabled()
  • The public ParserOutput state fields $mTOCEnabled and $mEditSectionTokens are also deprecated.
• License::getLicenses has been deprecated; use License::getLines instead.
• QuickTemplate::setRef() was deprecated in favour of QuickTemplate::set(). Setting template variables by reference allowed violating the principle of data being immutable once added to the skin template. In practice, this method was not being used for that. Rather, setRef() existed as memory optimisation for PHP 4.
• QuickTemplate::setTranslator() and MediaWikiI18N::set() were deprecated in favour of Skin::msg() parameters.
• MediaWikiI18N::translate() was deprecated in favour of Skin::msg() or wfMessage().
• Passing false to ParserOptions::setWrapOutputClass() is deprecated. Use the 'unwrap' transform to ParserOutput::getText() instead.
• \ObjectFactory (no namespace) is deprecated, the namespaced class \Wikimedia\ObjectFactory from the wikimedia/object-factory library should be used instead.
• CommentStore::newKey is deprecated. Instead, get an instance from MediaWikiServices.
• The following CommentStore methods have had their signatures changed to introduce a $key parameter, usage of the methods on instances retrieved from CommentStore::newKey will remain unchanged but deprecated:
  • CommentStore::getFields
  • CommentStore::getJoin
  • CommentStore::getComment
  • CommentStore::getCommentLegacy
  • CommentStore::insert
  • CommentStore::insertWithTemplate
• The following methods in Title have been renamed, and the old ones are deprecated:
  • Title::getSkinFromCssJsSubpage – use ::getSkinFromConfigSubpage
  • Title::isCssOrJsPage – use ::isSiteConfigPage
  • Title::isCssJsSubpage – use ::isUserConfigPage
  • Title::isCssSubpage – use ::isUserCssConfigPage
  • Title::isJsSubpage – use ::isUserJsConfigPage
• The following methods related to caching of half-parsed HTML were deprecated:
  • Parser::serializeHalfParsedText()
  • Parser::unserializeHalfParsedText()
  • Parser::isValidHalfParsedText()
  • StripState::getSubState()
  • StripState::merge()
• The DeferredStringifier class is deprecated, use Message::listParam() instead.
• The type string for the parameter $lang of DateFormatter::getInstance is deprecated.
• Wikimedia\Rdbms\SavepointPostgres is deprecated.
• The DO_MAINTENANCE constant is deprecated. RUN_MAINTENANCE_IF_MAIN should be used instead.
• The function wfShellWikiCmd() has been deprecated, use MediaWiki\Shell::makeScriptCommand().
• In the future, the hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend' will be allowed to provide any HTMLForm object rather than PreferencesForm.

=== Other changes in 1.31 ===

• Browser support for Internet Explorer 10 was lowered from Grade A to Grade C.
• Browser support for Opera 12 and older was dropped entirely. Opera 15+ continues at Grade A.
• Multi-content-revision capability was introduced into the storage layer. See https://mediawiki.org/wiki/Requests_for_comment/Multi-Content_Revisions.
• The "free" CSS class is now only applied to unbracketed URLs in wikitext. Links written using square brackets will get the class "text" not "free".
• RFC 157418: Whitespace is trimmed from wikitext headings, wikitext list items, wikitext table captions, wikitext table headings, wikitext table cells. HTML headings, HTML list items, HTML table captions, HTML table headings, HTML table cells will not have this trimming behavior.

== Compatibility == MediaWiki 1.31 requires PHP 7.0.0 or later. Although HHVM 3.18.5 or later is supported, it is generally advised to use PHP 7.0.0 or later for long term support.

MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used, but support for them is somewhat less mature. There is experimental support for Oracle and Microsoft SQL Server.

The supported versions are:

• MySQL 5.5.8 or later
• PostgreSQL 9.2 or later
• SQLite 3.3.7 or later
• Oracle 9.0.1 or later
• Microsoft SQL Server 2005 (9.00.1399)

== Upgrading == 1.31 has several database changes since 1.30, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site).

Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed upgrade instructions, including important information when upgrading from versions prior to 1.11.

For notes on 1.30.x and older releases, see HISTORY.

== Online documentation == Documentation for both end-users and site administrators is available on MediaWiki.org, and is covered under the GNU Free Documentation License (except for pages that explicitly state that their contents are in the public domain):

   https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation

== Mailing list == A mailing list is available for MediaWiki user support and discussion:

   https://lists.wikimedia.org/mailman/listinfo/mediawiki-l

A low-traffic announcements-only list is also available:

   https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce

It's highly recommended that you sign up for one of these lists if you're going to run a public MediaWiki, so you can be notified of security fixes.

== IRC help == There's usually someone online in #mediawiki on irc.freenode.net.

= MediaWiki 1.30 =

== MediaWiki 1.30.2 ==

This is a security and maintenance release of the MediaWiki 1.30 branch.

=== Changes since MediaWiki 1.30.1 ===

• (T204729) WatchedItemStore::countVisitingWatchersMultiple() shouldn't query all titles when asked for none.
• (T109121) Remove deprecated pear/mail_mime-decode from composer suggested libraries.
• (T207540) Include IP address in "Login for $1 succeeded" log entry.
• (T205765) Don't link to the obsolete "Extension Matrix" page in installer.
• (T207603) SECURITY: User JS may no longer be loaded with mime type text/javascript if there is no account associated with the username.
• (T113042) SECURITY: Do not allow loading pages raw with a text/javascript MIME type if non-admins can edit the page.
• (T207541) Pass email address to mail().
• Fix addition of ug_expiry column to user_groups table on MSSQL.
• (T204531) rdbms: reduce LoadBalancer replication log spam.
• (T213489) Avoid session double-start in Setup.php.
• (T195525) Fix db error outage page.
• (T208871) The hard-coded Google search form on the database error page was removed.
• (T216968) Return pageid as int in both list=iwbacklinks and list=langbacklinks.
• (T218608) SECURITY: Fix an issue that prevents Extension:OAuth working when $wgBlockDisablesLogin is true.
• (T25227) SECURITY: action=logout now requires to be posted and have a csrf token.
• (T222385) resourceloader: Use AND instead of OR for upsert conds in saveFileDependencies().
• (T224374) Fix message parameters so that the message that says SQLite is out of date makes sense.
• SpecialPage::checkLoginSecurityLevel() will now preserve POST data when reauthenticating.
• FormSpecialPage::execute() will now call checkLoginSecurityLevel() if getLoginSecurityLevel() returns non-false.
• (T197279) SECURITY: Fix reauth in Special:ChangeEmail.
• (T208881) SECURITY: blacklist CSS var().
• (T209794) SECURITY: rate-limit and prevent blocked users from changing email.
• (T199540) SECURITY: API: Respect $wgBlockCIDRLimit in action=block.
• (T212118) SECURITY: Fix cache mode for (un)patrolled recent changes query.
• (T222036, T222038) SECURITY: Add permission check for user is permitted to view the log type.
• (T221739) SECURITY: resources: Patch jQuery 1.11.3 for CVE-2019-11358.

== MediaWiki 1.30.1 ==

This is a security and maintenance release of the MediaWiki 1.30 branch.

=== Changes since MediaWiki 1.30.0 ===

• (T169545, CVE-2018-0503) SECURITY: $wgRateLimits entry for 'user' overrides 'newbie'.
• (T194605, CVE-2018-0505) SECURITY: BotPasswords can bypass CentralAuth's account lock.
• (T87572) Make FormatMetadata::flattenArrayReal() work for an associative array.
• Updated composer/spdx-licenses from 1.1.4 to 1.3.0 (development dependency).
• (T189567) the CLI installer (maintenance/install.php) learned to detect and include extensions. Pass --with-extensions to enable that feature.
• (T190503) Let built-in web server (maintenance/dev) handle .php requests.
• (T167507) selenium: Run Chrome headlessly.
• selenium: Pass -no-sandbox to Chrome under Docker.
• (T179190) selenium: Move logic for running tests from package.json to selenium.sh
• (T192584) Stop incorrectly passing USE INDEX to RecentChange::newFromConds().
• Add default edit rate limit of 90 edits/minute for all users.
• (T186565) Fix PHP Notice from ob_end_flush() in FileRepo::streamFile().
• oojs/oojs-ui updated to remove an unnecessary dependancy.
• (T196125) php-memcached 3.0 (provided with PHP 7.0) is now supported.
• (T118683) Fix exception from &$user deref on HHVM in the TitleMoveComplete hook.
• (T196672) The mtime of extension.json files is now able to be zero
• (T180403) Validate $length in padleft/padright parser functions.
• (T143790) Make $wgEmailConfirmToEdit only affect edit actions.
• (T193995) Fix undefined patchPath() method call in parser tests.
• Special:BotPasswords now requires reauthentication.
• (T191608, T187638) Add 'logid' parameter to Special:Log.
• (T193829) Indicate when a Bot Password needs reset.
• (T151415) Log email changes.
• (T200861) Fix total breakage of SQLite web upgrade.
• (T202550) Unbreak SpecialListusersHeaderForm and SpecialListusersHeader hooks.
• (T190539) Explicitly require Postgres 9.1.
• (T118420) Unbreak Oracle installer.

== MediaWiki 1.30.0 ==

=== Changes since MediaWiki 1.30.0-rc.0 ===

• Upgraded Moment.js from v2.15.0 to v2.19.3.
• Add ip_changes to postgres/tables.sql.
• Skip null shell parameters.
• Add wfWaitForSlaves() to maintenance/migrateComments.php.
• (T182245) Fix join conditions in ImageListPager.
• (T178626) Revert #contentSub and #jump-to-nav margin changes.

=== MySQL version requirement in 1.30 === As of 1.30, MediaWiki now requires MySQL 5.5.8 or higher (see Compatibility section).

=== Configuration changes in 1.30 ===

• The "C.UTF-8" locale should be used for $wgShellLocale, if available, to avoid unexpected behavior when code uses locale-sensitive string comparisons. For example, the Scribunto extension considers "bar" < "Foo" in most locales since it ignores case.
• $wgShellLocale now affects LC_ALL rather than only LC_CTYPE. See documentation of $wgShellLocale for details.
• $wgShellLocale is now applied for all requests. wfInitShellLocale() is deprecated and a no-op, as it is no longer needed.
• $wgJobClasses may now specify callback functions as an alternative to plain class names. This is intended for extensions that want control over the instantiation of their jobs, to allow for proper dependency injection.
• $wgResourceModules may now specify callback functions as an alternative to plain class names, using the 'factory' key in the module description array. This allows dependency injection to be used for ResourceLoader modules.
• $wgExceptionHooks has been removed.
• (T163562) $wgRangeContributionsCIDRLimit was introduced to control the size of IP ranges that can be queried at Special:Contributions.
• (T45547) $wgUsePigLatinVariant added (off by default).
• (T152540) MediaWiki now supports a section ID escaping style that allows to display non-Latin characters verbatim on many modern browsers. This is controlled by the new configuration setting, $wgFragmentMode.
• $wgExperimentalHtmlIds is now deprecated and will be removed in a future version, use $wgFragmentMode to migrate off it to a modern alternative.
• $wgExternalInterwikiFragmentMode was introduced to control how fragments in sinterwikis going outside of current wiki farm are encoded.
• (T120333) Soft-deprecated the use of PHP extension 'mysql' in favor of 'mysqli'. This PHP extension was deprecated in PHP 5.5 and removed in PHP 7.0. MediaWiki auto-selects the 'mysqli' driver since MediaWiki 1.22, except if explicitly requested through the configuration parameter $wgDBservers.
• $wgOOUIEditPage was removed, as it is now the default. This was documented as a temporary variable during the migration period.

=== New features in 1.30 ===

• (T37247) Output from Parser::parse() will now be wrapped in a div with class="mw-parser-output" by default. This may be changed or disabled using ParserOptions::setWrapOutputClass().
• (T163562) Added ability to search for contributions within an IP ranges at Special:Contributions.
• Added 'ChangeTagsAllowedAdd' hook, enabling extensions to allow software- specific tags to be added by users.
• Added a 'ParserOptionsRegister' hook to allow extensions to register additional parser options.
• (T45547) Included Pig Latin, a language game in English, as a LanguageConverter variant. This allows English-speaking developers to develop and test LanguageConverter more easily. Pig Latin can be enabled by setting $wgUsePigLatinVariant to true.
• Added RecentChangesPurgeRows hook to allow extensions to purge data that depends on the recentchanges table.
• Added JS config values wgDiffOldId/wgDiffNewId to the output of diff pages.
• (T2424) Added direct unwatch links to entries in Special:Watchlist (if the 'watchlistunwatchlinks' preference option is enabled). With JavaScript enabled, these links toggle so the user can also re-watch pages that have just been unwatched.
• Added $wgParserTestMediaHandlers, where mock media handlers can be passed to MediaHandlerFactory for parser tests.
• Edit summaries, block reasons, and other "comments" are now stored in a separate database table. Use the CommentFormatter class to access them. ** This is currently gated by $wgCommentTableSchemaMigrationStage. Most wikis can set this to MIGRATION_NEW and run maintenance/migrateComments.php as soon as any necessary extensions are updated.
• (T138166) Added ability for users to prohibit other users from sending them emails with Special:Emailuser. Can be enabled by setting $wgEnableUserEmailBlacklist to true.
• (T67297) $wgBrowserBlacklist is deprecated, and changing it will have no effect. Instead, users using browsers that do not support Unicode will be unable to edit and should upgrade to a modern browser instead.

=== External library changes in 1.30 ===

==== Upgraded external libraries ====

• Updated justinrainbow/json-schema from v3.0 to v5.2.
• Updated mediawiki/mediawiki-codesniffer from v0.7.2 to v0.12.0.
• Updated wikimedia/composer-merge-plugin from v1.4.0 to v1.4.1.
• Updated wikimedia/relpath from v1.0.3 to v2.0.0.
• Updated OOjs from v2.0.0 to v2.1.0.
• Updated OOUI from v0.21.1 to v0.23.0.
• Updated QUnit from v1.23.1 to v2.4.0.
• Updated phpunit/phpunit from v4.8.35 to v4.8.36.
• Upgraded Moment.js from v2.15.0 to v2.19.3.

==== New external libraries ====

• The class \TestingAccessWrapper has been moved to the external library wikimedia/testing-access-wrapper and renamed \Wikimedia\TestingAccessWrapper.
• Purtle, a fast, lightweight RDF generator.

=== Bug fixes in 1.30 ===

• (T151633) Ordered list items use now Devanagari digits in Nepalese (thanks to Sfic)

=== Action API changes in 1.30 ===

• (T37247) action=parse output will be wrapped in a div with class="mw-parser-output" by default. This may be changed or disabled using the new 'wrapoutputclass' parameter.
• When errorformat is not 'bc', abort reasons from action=login will be formatted as specified by the error formatter parameters.
• action=compare can now handle arbitrary text, deleted revisions, and returning users and edit comments.
• (T164106) The 'rvdifftotext', 'rvdifftotextpst', 'rvdiffto', 'rvexpandtemplates', 'rvgeneratexml', 'rvparse', and 'rvprop=parsetree' parameters to prop=revisions are deprecated, as are the similarly named parameters to prop=deletedrevisions, list=allrevisions, and list=alldeletedrevisions. Use action=compare, action=parse, or action=expandtemplates instead.

=== Action API internal changes in 1.30 ===

• ApiBase::getDescriptionMessage() and the "apihelp--description" messages are deprecated. The existing message should be split between "apihelp--summary" and "apihelp-*-extended-description".
• (T123931) Individual values of multi-valued parameters can now be marked as deprecated.

=== Languages updated in 1.30 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• Added: kbp (Kabɩyɛ / Kabiyè)
• Added: skr (Saraiki, سرائیکی)
• Added: tay (Tayal / Atayal)
• Removed: tokipona (Toki Pona)

==== Pig Latin added ====

• (T45547) Added Pig Latin, a made-up English variant (en-x-piglatin), for easier variant development and testing. Disabled by default. It can be enabled by setting $wgUsePigLatinVariant to true.

=== Other changes in 1.30 ===

• The use of an associative array for $wgProxyList, where the IP address is in the key instead of the value, is deprecated (e.g. [ '127.0.0.1' => 'value' ]). Please convert these arrays to indexed/sequential ones (e.g. [ '127.0.0.1' ]).
• mw.user.bucket (deprecated in 1.23) was removed.
• LoadBalancer::getServerInfo() and LoadBalancer::setServerInfo() are deprecated. There are no known callers.
• File::getStreamHeaders() was deprecated.
• MediaHandler::getStreamHeaders() was deprecated.
• Title::canTalk() was deprecated. The new Title::canHaveTalkPage() should be used instead.
• MWNamespace::canTalk() was deprecated. The new MWNamespace::hasTalkNamespace() should be used instead.
• The ExtractThumbParameters hook (deprecated in 1.21) was removed.
• The OutputPage::addParserOutputNoText and ::getHeadLinks methods (both deprecated in 1.24) were removed.
• wfMemcKey() and wfGlobalCacheKey() were deprecated. BagOStuff::makeKey() and BagOStuff::makeGlobalKey() should be used instead.
• (T146304) Preprocessor handling of LanguageConverter markup has been improved. As a result of the new uniform handling, '-{' may need to be escaped (for example, as '-<nowiki/>{') where it occurs inside template arguments or wikilinks.
• (T163966) Page moves are now counted as edits for the purposes of autopromotion, i.e., they increment the user_editcount field in the database.
• Two new hooks, LogEventsListLineEnding and NewPagesLineEnding, were added for manipulating Special:Log and Special:NewPages lines.
• The OldChangesListRecentChangesLine, EnhancedChangesListModifyLineData, PageHistoryLineEnding, ContributionsLineEnding and DeletedContributionsLineEnding hooks have an additional parameter, for manipulating HTML data attributes of RC/history lines. EnhancedChangesListModifyBlockLineData can do that via the $data['attribs'] subarray.
• (T130632) The OutputPage::enableTOC() method was removed.
• WikiPage::getParserOutput() will now throw an exception if passed ParserOptions that would pollute the parser cache. Callers should use WikiPage::makeParserOptions() to create the ParserOptions object and only change options that affect the parser cache key.
• Article::viewRedirect() is deprecated.
• IP::isValidBlock() was deprecated. Use the equivalent IP::isValidRange().
• DeprecatedGlobal no longer supports passing in a direct value, it requires a callable factory function or a class name.
• The $parserMemc global, wfGetParserCacheStorage(), and ParserCache::singleton() are all deprecated. The main ParserCache instance should be obtained from MediaWikiServices instead. Access to the underlying BagOStuff is possible through the new ParserCache::getCacheStorage() method.
• .mw-ui-constructive CSS class (deprecated in 1.27) was removed.
• Sanitizer::escapeId() was deprecated, use escapeIdForAttribute(), escapeIdForLink() or escapeIdForExternalInterwiki() instead.
• Title::escapeFragmentForURL() was deprecated, use one of the aforementioned Sanitizer functions or, if possible, Title::getFragmentForURL().
• Second parameter to Sanitizer::escapeIdReferenceList() ($options) now does nothing and is deprecated.
• mw.util.escapeId() was deprecated, use escapeIdForAttribute() or escapeIdForLink().
• MagicWord::replaceMultiple() (deprecated in 1.25) was removed.
• WikiImporter now requires the second parameter to be an instance of the Config, class. Prior to that, the Config parameter was optional (a behavior deprecated in 1.25).
• Removed 'jquery.mwExtension' module. (deprecated since 1.26)
• mediawiki.ui: Deprecate greys, which are not part of WikimediaUI color palette any more.
• CdbReader, CdbWriter, CdbException classes (deprecated in 1.25) were removed. The namespaced classes in the Cdb namespace should be used instead.
• IPSet class (deprecated in 1.26) was removed. The namespaced IPSet\IPSet should be used instead.
• RunningStat class (deprecated in 1.27) was removed. The namespaced RunningStat\RunningStat should be used instead.
• MWMemcached and MemCachedClientforWiki classes (deprecated in 1.27) were removed. The MemcachedClient class should be used instead.
• EditPage underwent some refactoring and deprecations:
  • EditPage::isOouiEnabled() is deprecated and will always return true.
  • EditPage::getSummaryInput() and ::getSummaryInputOOUI() are deprecated. Please use ::getSummaryInputWidget() instead.
  • EditPage::getCheckboxes() and ::getCheckboxesOOUI() are deprecated. Please use ::getCheckboxesWidget() instead.
  • Creating an EditPage instance without calling EditPage::setContextTitle() should be avoided and will be deprecated in a future release.
  • EditPage::safeUnicodeInput() and ::safeUnicodeOutput() are deprecated and no-ops.
  • EditPage::$isCssJsSubpage, ::$isCssSubpage, and ::$isJsSubpage are deprecated. The corresponding methods from Title should be used instead.
  • EditPage::$isWrongCaseCssJsPage is deprecated. There is no replacement.
  • EditPage::$mArticle and ::$mTitle are deprecated for public usage. The getters ::getArticle() and ::getTitle() should be used instead.
  • Trying to control or fake EditPage context by overriding $wgUser, $wgRequest, $wgOut, and $wgLang is no longer supported and won't work. The IContextSource returned from EditPage::getContext() must be modified instead.
• Parser::getRandomString() (deprecated in 1.26) was removed.
• Parser::uniqPrefix() (deprecated in 1.26) was removed.
• Parser::extractTagsAndParams() now only accepts three arguments. The fourth, $uniq_prefix was deprecated in 1.26 and has now been removed.
• (T172514) The following tables have had their UNIQUE indexes turned into proper PRIMARY KEYs for increased maintainability: categorylinks, imagelinks, iwlinks, langlinks, log_search, module_deps, objectcache, pagelinks, query_cache, site_stats, templatelinks, text, transcache, user_former_groups, user_properties.
• IDatabase::nextSequenceValue() is no longer needed by any database backends (formerly it was needed by PostgreSQL and Oracle), and is now deprecated.
• (T146591) The lc_lang_key index on the l10n_cache table has been changed into a PRIMARY KEY.
• (T157227) bot_password.bp_user, change_tag.ct_log_id, change_tag.ct_rev_id, page_restrictions.pr_user, tag_summary.ts_log_id, tag_summary.ts_rev_id and user_properties.up_user have all been made unsigned on MySQL.
• DB_SLAVE is deprecated. DB_REPLICA should be used instead.
• wfUsePHP() is deprecated.
• wfFixSessionID() was removed.
• wfShellExec() and related functions are deprecated, use Shell::command(). This also slightly changes the behavior of how execution time limits are calculated when only some of defaults are overridden per-call. When in doubt, always override both wall clock and CPU time.
• (T138166) SpecialEmailUser::getTarget() now requires a second argument, the sending user object. Using the method without the second argument is deprecated.
• (T67297) Browsers that don't support Unicode will have their edits rejected.
• (T178450) The module 'jquery.badge' is deprecated and will be removed in a future release. For notifying the user of an event, the Notifications ("Echo") system should be used instead.
• (T178451) SECURITY: Potential XSS when $wgShowExceptionDetails = false and browser sends non-standard url escaping.
• (T165846) SECURITY: BotPassword login attempts weren't throttled.

= MediaWiki 1.29 =

== MediaWiki 1.29.3 ==

This is a security and maintenance release of the MediaWiki 1.29 branch.

=== Changes since 1.29.2 ===

• (T169545, CVE-2018-0503) SECURITY: $wgRateLimits entry for 'user' overrides 'newbie'.
• (T194605, CVE-2018-0505) SECURITY: BotPasswords can bypass CentralAuth's account lock.
• (T180551) Fix LanguageSrTest for language converter
• (T180552) Fix language converter parser test with self-close tags
• (T180537) Remove $wgAuth usage from wrapOldPasswords.php
• (T180485) InputBox: Have inputbox langconvert certain attributes
• (T161732, T181547) Upgraded Moment.js from v2.15.0 to v2.19.3.
• (T172927) Drop vendor from MW release branch
• (T87572) Make FormatMetadata::flattenArrayReal() work for an associative array
• Updated composer/spdx-licenses from 1.1.4 to 1.3.0 (development dependency).
• (T189567) the CLI installer (maintenance/install.php) learned to detect and include extensions. Pass --with-extensions to enable that feature.
• (T182381) Mask deprecated call in WatchedItemUnitTest
• (T190503) Let built-in web server (maintenance/dev) handle .php requests.
• The karma qunit tests would fail on some configuration due to headers already sent. Check headers_sent() before sending cpPosTime headers
• (T167507) selenium: Run Chrome headlessly.
• selenium: Pass -no-sandbox to Chrome under Docker
• (T191247) Use MediaWiki\SuppressWarnings around trigger_error('') instead @
• (T75174, T161041) Unit test ChangesListSpecialPageTest::testFilterUserExpLevel fails under SQLite.
• (T192584) Stop incorrectly passing USE INDEX to RecentChange::newFromConds().
• (T179190) selenium: Move test running logic from package.json to selenium.sh.
• (T117839, T193200) PDFHandler: Fix for pdfinfo changes in poppler-utils 0.48.
• Add default edit rate limit of 90 edits/minute for all users.
• (T196125) php-memcached 3.0 (provided with PHP 7.0) is now supported.
• (T196672) The mtime of extension.json files is now able to be zero
• (T180403) Validate $length in padleft/padright parser functions.
• (T143790) Make $wgEmailConfirmToEdit only affect edit actions.
• (T194237) Special:BotPasswords now requires reauthentication.
• (T191608, T187638) Add 'logid' parameter to Special:Log.
• (T176097) resourceloader: Disable a flaky MessageBlobStoreTest case
• (T193829) Indicate when a Bot Password needs reset.
• (T151415) Log email changes.
• (T118420) Unbreak Oracle installer.

== MediaWiki 1.29.2 ==

This is a security and maintenance release of the MediaWiki 1.29 branch.

=== Changes since 1.29.1 ===

• (T166757) Avoid scoped lock errors in Category::refreshCounts() due to nesting.
• (T175439) Unbreak Postgres Updater when setting defaults for a column.
• (T160298) Remove use of implicitGroupBy() in ActiveUsersPager.
• Fixed login button label to accept RawMessage.
• Fixed case of SpecialRecentChanges class usage.
• (T174255) Declare uploadCount property in importDump.php.
• (T163646) Pass a string not an int to mysql_real_escape_string().
• (T180143) Bump justinrainbow/json-schema development dependency to ~5.2.
• Updated dev dependancy phpunit/phpunit from v4.8.35 to v4.8.36.
• (T178451) SECURITY: Potential XSS when $wgShowExceptionDetails = false and browser sends non-standard url escaping.
• (T165846) SECURITY: BotPassword login attempts weren't throttled.
• (T128209) SECURITY: Reflected File Download from api.php.
• (T134100) SECURITY: Do not reveal if user exists during login failure.
• (T176247) SECURITY: Ensure Message::rawParams can't lead to XSS.
• (T125163) SECURITY: Make anchor for headlines escape > and <.
• (T180237) SECURITY: Protect vendor folder with .htaccess.
• (T180231) SECURITY: Remove PHPUnit file with known RCE if exists in update.php.
• (T124404) SECURITY: XSS in langconverter when regex hits pcre.backtrack_limit.
• (T119158) SECURITY: Handle -{}- syntax in attributes safely.
• (T180488) (T125177) "api.log contains passwords in plaintext" wasn't correctly fixed in all branches in the previous security release.

== MediaWiki 1.29.1 ==

This is a maintenance release of the MediaWiki 1.29 branch.

The SpamBlacklist and PdfHandler extensions were missing from the generated packages.

=== Changes since 1.29.1 ===

• (T164999) Define mw.Upload.Dialog.static.name in mediawiki.Upload.Dialog.js.
• (T172061) Fix fatal when passing a category to refreshLinks.php.

== MediaWiki 1.29.0 ==

=== Configuration changes in 1.29 ===

• Default cookie expiration time has been reduced to 30 days. Login cookie expiration time is kept at 180 days.
• A new configuration variable has been added: $wgCookieSetOnAutoblock. This determines whether to set a cookie when a user is autoblocked. Doing so means that a blocked user, even after logging out and moving to a new IP address, will still be blocked.
• The resetpassword right and associated password reset capture feature has been removed.
• The $error parameter to the EmailUser hook should be set to a Status object or boolean false. This should be compatible with at least MediaWiki 1.23 if not earlier. Returning a raw HTML string is now deprecated.
• The $message parameter to the ApiCheckCanExecute hook should be set to an ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a code for ApiBase::parseMsg() will no longer work.
• ApiBase::$messageMap is no longer public. Code attempting to access it will result in a PHP fatal error.
• $wgUserEmailUseReplyTo is now true by default to work around restrictive DMARC policies.
• Subpages are now enabled by default in the Template namespace. Set $wgNamespacesWithSubpages[NS_TEMPLATE] to false to keep the old behavior.
• $wgRunJobsAsync is now false by default (T142751). This change only affects wikis with $wgJobRunRate > 0.
• (T158474) "Unknown user" has been added to $wgReservedUsernames.
• (T156983) $wgRateLimitsExcludedIPs now accepts CIDR ranges as well as single IPs.
• $wgDummyLanguageCodes is deprecated. Additional language code mappings may be added to $wgExtraLanguageCodes instead.
• (T161453) LocalisationCache will no longer use the temporary directory in it's fallback chain when trying to work out where to write the cache.
• The user right 'editusercssjs' (deprecated in 1.16) was removed. Use 'editusercss' and 'edituserjs' in $wgGroupPermissions and elsewhere instead.

=== New features in 1.29 ===

• (T5233) A cookie can now be set when a user is autoblocked, to track that user if they move to a new IP address. This is disabled by default.
• Added ILocalizedException interface to standardize the use of localized exceptions, largely so the API can handle them more sensibly.
• Blocks created automatically by MediaWiki, such as for configured proxies or dnsbls, are now indicated as such and use a new i18n message when displayed.
• Added new $wgHTTPImportTimeout setting. Sets timeout for downloading the XML dump during a transwiki import in seconds.
• Parser limit report is now available in machine-readable format to JavaScript via mw.config.get('wgPageParseReport').
• Added $wgSoftBlockRanges, to allow for automatically blocking anonymous edits from certain IP ranges (e.g. private IPs).
• (T59603) Added new magic word {{PAGELANGUAGE}} which returns the language code of the page being parsed.
• HTML5 form validation attributes will no longer be suppressed. Originally browsers had poor support for them, but modern browsers handle them fine. This might affect some forms that used them and only worked because the attributes were not actually being set.
• Expiry times can now be specified when users are added to user groups.
• Completely new user interface for the RecentChanges page, which structures filters into user-friendly groups. This has corresponding changes to how filters are registered by core and extensions.
• The edit form now uses pretty OOjs UI buttons, checkboxes and summary input. Because this change can cause problems for extensions and on-wiki scripts depending on the exact HTML, the old version is still available and can be used by setting $wgOOUIEditPage = false; in LocalSettings.php. This will be removed later and OOjs UI will become the only option. To make testing easier, users can also force either mode by adding &ooui=true or &ooui=false to the action=edit URL.

=== External library changes in 1.29 ===

==== Upgraded external libraries ====

• Updated QUnit from v1.22.0 to v1.23.1.
• Updated cssjanus from v1.1.2 to v1.2.0.
• Updated psr/log from v1.0.0 to v1.0.2.
• Update Moment.js from v2.8.4 to v2.15.0.
• Updated oyejorge/less.php from v1.7.0.10 to v1.7.0.14.
• Updated monolog from v1.18.2 to 1.22.1.
• Updated wikimedia/composer-merge-plugin from v1.3.1 to v1.4.0.
• Updated OOjs from v1.1.10 to v2.0.0.
• Updated jQuery from v1.11.3 to v3.2.1 (including jQuery Migrate v3.0.0).

==== New external libraries ====

• Added wikimedia/timestamp v1.0.0.
• Added wikimedia/remex-html v1.0.1.

==== Removed and replaced external libraries ====

=== Bug fixes in 1.29 ===

• (T62604) Core parser functions returning a number now format the number according to the page content language, not wiki content language.
• (T27187) Search suggestions based on jquery.suggestions will now correctly only highlight prefix matches in the results.
• (T157035) "new mw.Uri()" was ignoring options when using default URI.
• Special:Allpages can no longer be filtered by redirect in miser mode.
• (T160519) CACHE_ANYTHING will not be CACHE_ACCEL if no accelerator is installed.
• (T109140) (T122209) SECURITY: Special:UserLogin and Special:Search allow redirect to interwiki links.
• (T144845) SECURITY: XSS in SearchHighlighter::highlightText() when $wgAdvancedSearchHighlighting is true.
• (T125177) SECURITY: API parameters may now be marked as "sensitive" to keep their values out of the logs.
• (T150044) SECURITY: "Mark all pages visited" on the watchlist now requires a CSRF token.
• (T156184) SECURITY: Escape content model/format url parameter in message.
• (T151735) SECURITY: SVG filter evasion using default attribute values in DTD declaration.
• (T161453) SECURITY: LocalisationCache will no longer use the temporary directory in it's fallback chain when trying to work out where to write the cache.
• (T48143) SECURITY: Spam blacklist ineffective on encoded URLs inside file inclusion syntax's link parameter.
• (T108138) SECURITY: Sysops can undelete pages, although the page is protected against it.

=== Action API changes in 1.29 ===

• Submitting sensitive authentication request parameters to action=login, action=clientlogin, action=createaccount, action=linkaccount, and action=changeauthenticationdata in the query string is now an error. They should be submitted in the POST body instead.
• The capture option for action=resetpassword has been removed
• action=clearhasmsg now requires a POST.
• (T47843) API errors and warnings may be requested in non-English languages using the new 'errorformat', 'errorlang', and 'errorsuselocal' parameters.
• API error codes may have changed. Most notably, errors from modules using parameter prefixes (e.g. all query submodules) will no longer be prefixed.
• ApiPageSet-using modules will report the 'invalidreason' using the specified 'errorformat'.
• action=emailuser may return a "Warnings" status, and now returns 'warnings' and 'errors' subelements (as applicable) instead of 'message'.
• action=imagerotate returns an 'errors' subelement rather than 'errormessage'.
• action=move now reports errors when moving the talk page as an array under key 'talkmove-errors', rather than using 'talkmove-error-code' and 'talkmove-error-info'. The format for subpage move errors has also changed.
• action=revisiondelete no longer includes a "rendered" property on warnings and errors for each item. Use errorformat=wikitext if you're wanting parsed output.
• action=rollback no longer returns a "messageHtml" property. Use errorformat=html if you're wanting HTML formatting of error messages.
• action=upload now reports optional stash failures as an array under key 'stasherrors' rather than a 'stashfailed' text string.
• action=watch reports 'errors' and 'warnings' instead of a single 'error', and no longer returns a 'message' on success.
• Added action=validatepassword to validate passwords for the account creation and password change forms.
• action=purge now requires a POST.
• There is a new languagevariants siprop for action=query&meta=siteinfo, which returns a list of languages with active LanguageConverter instances.
• action=query&query=allpages will no longer filter redirects using a database query in miser mode. This may result in less results being returned than were requested.

=== Action API internal changes in 1.29 ===

• New methods were added to ApiBase to handle errors and warnings using i18n keys. Methods for using hard-coded English messages were deprecated:
  • ApiBase::dieUsage() was deprecated
  • ApiBase::dieUsageMsg() was deprecated
  • ApiBase::dieUsageMsgOrDebug() was deprecated
  • ApiBase::getErrorFromStatus() was deprecated
  • ApiBase::parseMsg() was deprecated
  • ApiBase::setWarning() was deprecated
• ApiBase::$messageMap is no longer public. Code attempting to access it will result in a PHP fatal error.
• The $message parameter to the ApiCheckCanExecute hook should be set to an ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a code for ApiBase::parseMsg() will no longer work.
• UsageException is deprecated in favor of ApiUsageException. For the time being ApiUsageException is a subclass of UsageException to allow things that catch only UsageException to still function properly.
• If, for some strange reason, code was using an ApiErrorFormatter instead of ApiErrorFormatter_BackCompat, note that the result format has changed and various methods now take a module path rather than a module name.
• ApiMessageTrait::getApiCode() now strips 'apierror-' and 'apiwarn-' prefixes from the message key, and maps some message keys for backwards compatibility.
• API parameters may now be marked as "sensitive" to keep their values out of the logs.

=== Languages updated in 1.29 ===

MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• Based as always on linguistic studies on intelligibility and language knowledge by geography, language fallbacks have been expanded. When a translation is missing in the user's preferred interface language, the corresponding translation for the fallback language will be used instead. English will only be used as last resort when there are no translations. Some configurations (such as date formats and gender namespaces) have also been updated when using the fallback language's configuration was inadequate. The new or reinstated language fallbacks are (after cs ↔ sk in 1.28): ca ↔ oc; hsb ↔ dsb; io → eo; mdf → ru; pnt → el; roa-tara → it; rup → ro; sh → bs, sr-el, hr.
• (T137376) New language support: Atikamekw (atj).
• (T163600) New language support: Dinka (din).
• (T155957) Talk Namespaces for Javanese language (jv) have been updated.

==== No fallback for Ukrainian ====

• (T39314) The fallback from Ukrainian to Russian was removed. The Ukrainian language will now use the default fallback language: English. When a translation to Ukrainian is not available, an English string will be shown.

=== Other changes in 1.29 ===

• Database::getSearchEngine() (deprecated in 1.28) was removed. Use SearchEngineFactory::getSearchEngineClass() instead.

• $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is required as all sessions are stored in Object Cache now.

• MWHttpRequest::execute() should be considered to return a StatusValue; the Status return type is deprecated.

• User::edits() (deprecated in 1.21) was removed.

• Xml::escapeJsString() (deprecated in 1.21) was removed.

• Article::getText() and Article::prepareTextForEdit() (deprecated in 1.21) were removed.

• Article::getAutosummary() and WikiPage::getAutosummary() (deprecated in 1.21) were removed.

• Hook ArticleViewCustom (deprecated in 1.21) was removed. Use ArticleContentViewCustom instead.

• Hooks EditPageGetDiffText and ShowRawCssJs (deprecated in 1.21) were removed.

• Class RevisiondeleteAction (deprecated in 1.25) was removed.

• WikiPage::prepareTextForEdit() (deprecated in 1.21) was removed.

• WikiPage::getText() (deprecated in 1.21) was removed.

• Article::fetchContent() (deprecated in 1.21) was removed.

• User::getPassword() (deprecated in 1.27) was removed.

• User::getTemporaryPassword() (deprecated in 1.27) was removed.

• User::isPasswordReminderThrottled() (deprecated in 1.27) was removed.

• Class FSRepo (deprecated in 1.19) was removed.

• WebRequest::checkSessionCookie() (deprecated in 1.27) was removed. Use \MediaWiki\Session\SessionManager::singleton()->getPersistedSessionId() instead.

• Class ImageGallery (deprecated in 1.22) was removed. Use ImageGalleryBase::factory instead.

• Title::moveNoAuth() (deprecated in 1.25) was removed. Use MovePage class instead.

• Hook UnknownAction (deprecated in 1.19) was actually deprecated (it will now emit warnings). Create a subclass of Action and add it to $wgActions instead.

• WikiRevision::getText() (deprecated since 1.21) is no longer marked deprecated.

• Linker::getInterwikiLinkAttributes() (deprecated since 1.25) was removed.

• Linker::getInternalLinkAttributes() (deprecated since 1.25) was removed.

• Linker::getInternalLinkAttributesObj() (deprecated since 1.25) was removed.

• Linker::getLinkAttributesInternal() (deprecated since 1.25) was removed.

• RedisConnectionPool::handleException (deprecated since 1.23) was removed.

• The static properties mw.Api.errors and mw.Api.warnings, containing incomplete and outdated lists of errors/warnings returned by the API, are now deprecated.

• wiki.phtml entry point was removed. Refer to index.php instead. If you want "wiki.phtml" URLs to continue to work, set up redirects. In Apache, this can be done by enabling mod_rewrite and adding the following rules to your configuration:

  RewriteEngine On RewriteBase / RewriteRule ^/w/wiki.phtml$ /w/index.php [R=301,L]

• Hook ArticleAfterFetchContent (deprecated in 1.21) was removed. Use ArticleAfterFetchContentObject instead.

• Hook ArticleInsertComplete (deprecated in 1.21) was removed. Use PageContentInsertComplete instead.

• Hook ArticleSave (deprecated in 1.21) was removed. Use PageContentSave instead.

• Hook ArticleSaveComplete (deprecated in 1.21) was removed. Use PageContentSaveComplete instead.

• Hook EditFilterMerged (deprecated in 1.21) was removed. Use EditFilterMergedContent instead.

• Hook EditPageGetPreviewText (deprecated in 1.21) was removed. Use EditPageGetPreviewContent instead.

• Hook TitleIsCssOrJsPage (deprecated in 1.21) was removed. Use ContentHandlerDefaultModelFor instead.

• Hook TitleIsWikitextPage (deprecated in 1.21) was removed. Use ContentHandlerDefaultModelFor instead.

• Article::getContent() (deprecated in 1.21) was removed.

• Revision::getText() (deprecated in 1.21) was removed.

• Article::doEdit() and WikiPage::doEdit() (deprecated in 1.21) were removed.

• Parser::replaceUnusualEscapes() (deprecated in 1.24) was removed.

• Article::doEditContent() was marked as deprecated, to be removed in 1.30 or later.

• ContentHandler::runLegacyHooks() was removed.

• refreshLinks.php now can be limited to a particular category with --category=... or a tracking category with --tracking-category=...

• User-like objects that are passed to SpecialUserRights and its subclasses are now required to have a getGroupMemberships() method. See UserRightsProxy for an example.

• User::$mGroups (instance variable) was marked private. Use User::getGroups() instead.

• User::getGroupName(), User::getGroupMember(), User:getGroupPage(), User::makeGroupLinkHTML(), and User::makeGroupLinkWiki() were deprecated. Use equivalent methods on the UserGroupMembership class.

• Maintenance scripts and tests that call User::addGroup() must now ensure that User objects have been added to the database prior to calling addGroup().

• Protected function UsersPager::getGroups() was removed, and protected function UsersPager::buildGroupLink() was changed from a static to an instance method.

• The third parameter ($cache) to the UsersPagerDoBatchLookups hook was changed; see docs/hooks.txt.

• User::crypt() (deprecated in 1.24) was removed.

• User::comparePasswords() (deprecated in 1.24) was removed.

• ArchivedFile::getUserText() (deprecated in 1.23) was removed.

• HTMLFileCache::newFromTitle() (deprecated in 1.24) was removed.

• BREAKING CHANGE: Internal signature changes to ChangesListSpecialPage and subclasses. It should only break if you call buildMainQueryConds (changed to buildQuery with new signature) or doMainQuery (new signature). Subclasses are likely to call at least doMainQuery (possibly both), but other classes might too, because they were public. Also, some related hooks were deprecated, but this is not yet a breaking change.

• Removed 'jquery.arrowSteps' module. (deprecated since 1.28)

• The 'jquery.autoEllipsis' ResourceLoader module is now deprecated.

• WikiRevision::$fileIsTemp was deprecated.

• WikiRevision::$importer was deprecated.

• WikiRevision::$user was deprecated.

• Article::getLastPurgeTimestamp(), WikiPage::getLastPurgeTimestamp(), and the WikiPage::PURGE_* constants are deprecated, and the functions will always return false. They were a hack for an issue that has since been fixed.

• Hook 'EditPageBeforeEditChecks' is now deprecated. Instead use the new hook 'EditPageGetCheckboxesDefinition', or 'EditPage::showStandardInputs:options' if you don't actually care about checkboxes and just want to add some HTML to the page.

• Selflinks are now rendered as href-less <a> tags with the class mw-selflink rather than <strong> tags. The old class name, "selflink", was deprecated and will be removed in a future release. (T160480)

• (T156184) $wgRawHtml will no longer apply to internationalization messages.

• Browser support for non-ES5 JavaScript browsers, including Android 2, Opera <12.10, and Internet Explorer 9, was lowered from Grade A to Grade C.

• Removed wikibits global methods deprecated since MediaWiki 1.17 (T122755): is_gecko, is_chrome_mac, is_chrome, webkit_version, is_safari_win, is_safari, webkit_match, is_ff2, ff2_bugs, is_ff2_win, is_ff2_x11, opera95_bugs, opera7_bugs, opera6_bugs, is_opera_95, is_opera_preseven, is_opera, ie6_bugs, clientPC, changeText, killEvt, addHandler, hookEvent, addClickHandler, removeHandler, getElementsByClassName, getInnerText, setupCheckboxShiftClick, addCheckboxClickHandlers, mwEditButtons, mwCustomEditButtons, injectSpinner, removeSpinner, escapeQuotes, escapeQuotesHTML, jsMsg, addPortletLink, appendCSS, tooltipAccessKeyPrefix, tooltipAccessKeyRegexp, updateTooltipAccessKeys.

• The ID of the <li> element containing the login link has changed from 'pt-login' to 'pt-login-private' in private wikis.

• The old, neglected "bulletin board style toolbar" in the edit form is now deprecated (T30856). This old code dates from 2006, and was replaced in the MediaWiki release tarball and in Wikimedia production by the WikiEditor extension in 2010. It is only shown to users if no other editor was installed, and leads to confusion.

• (T92459) Loading ResourceLoader modules containing JavaScript through addModuleStyles() is deprecated and will log a warning server-side.

= MediaWiki 1.28 =

== MediaWiki 1.28.3 ==

This is a security and maintenance release of the MediaWiki 1.28 branch.

=== Changes since 1.28.2 ==

• (T168856) Allow SVGs created by Dia to be uploaded.
• (T157545) Add missing doUpdates() call to refreshLinks.php.
• (T165714) (T100085) Better handling of jobs execution in post-connection shutdown.
• (T154425) (T154438) (T157679) Use AutoCommitUpdate instead of Database->onTransactionIdle.
• (T154425) Make DeferredUpdates detect LBFactory transaction rounds.
• (T149454) Restore erroneously removed realTableName call from DatabasePostgres.
• (T167798) Fix phrase search and highlighting for phrase queries.
• (T151136) Provide credits information to callbacks in extension registration.
• (T160462) Allow namespaces defined in extension.json to be overwritten locally.
• (T168337) Fix ErrorPageError to work from non-UI contexts.
• (T143788) Backports for PHP 7.0 and 7.1 support.
• (T175439) Unbreak Postgres Updater when setting defaults for a column.
• (T160298) Remove use of implicitGroupBy() in ActiveUsersPager.
• (T174255) Declare uploadCount property in importDump.php.
• (T180231) SECURITY: Updated dev dependancy phpunit/phpunit from v4.8.24 to v4.8.36.
• (T178451) SECURITY: Potential XSS when $wgShowExceptionDetails = false and browser sends non-standard url escaping.
• (T165846) SECURITY: BotPassword login attempts weren't throttled.
• (T128209) SECURITY: Reflected File Download from api.php.
• (T134100) SECURITY: Do not reveal if user exists during login failure.
• (T176247) SECURITY: Ensure Message::rawParams can't lead to XSS.
• (T125163) SECURITY: Make anchor for headlines escape > and <.
• (T180237) SECURITY: Protect vendor folder with .htaccess.
• (T180231) SECURITY: Remove PHPUnit file with known RCE if exists in update.php.
• (T124404) SECURITY: XSS in langconverter when regex hits pcre.backtrack_limit.
• (T119158) SECURITY: Handle -{}- syntax in attributes safely.

== MediaWiki 1.28.2 ==

Due to a packaging error, the wrong version of the SyntaxHighlight extension was included in the tarball version of MediaWiki 1.28.1. The version included had a serious security issue in it (T158689). There was also some minor code fixes in MediaWiki itself since 1.28.1, but none of them were security relevant.

== MediaWiki 1.28.1 ==

This is a security and maintenance release of the MediaWiki 1.28 branch.

=== Changes since 1.28.0 ===

• $wgRunJobsAsync is now false by default (T142751). This change only affects wikis with $wgJobRunRate > 0.
• Fix fatal from "WaitConditionLoop" not being found, experienced when a wiki has more than one database server setup.
• (T152717) Better escaping for PHP mail() command,
• (T154670) A missing method causing the MySQL installer to fatal in rare circumstances was restored.
• (T154672) Un-deprecate ArticleAfterFetchContentObject hook.
• (T158766) Avoid SQL error on MSSQL when using selectRowCount().
• (T145635) Fix too long index error when installing with MSSQL.
• (T156184) $wgRawHtml will no longer apply to internationalization messages.
• (T160519) CACHE_ANYTHING will not be CACHE_ACCEL if no accelerator is installed.
• (T154872) Fix incorrect ar_usertext_timestamp index names in new 1.28 installs.
• (T109140) (T122209) SECURITY: Special:UserLogin and Special:Search allow redirect to interwiki links.
• (T144845) SECURITY: XSS in SearchHighlighter::highlightText() when $wgAdvancedSearchHighlighting is true.
• (T125177) SECURITY: API parameters may now be marked as "sensitive" to keep their values out of the logs.
• (T150044) SECURITY: "Mark all pages visited" on the watchlist now requires a CSRF token.
• (T156184) SECURITY: Escape content model/format url parameter in message.
• (T151735) SECURITY: SVG filter evasion using default attribute values in DTD declaration.
• (T161453) SECURITY: LocalisationCache will no longer use the temporary directory in it's fallback chain when trying to work out where to write the cache.
• (T48143) SECURITY: Spam blacklist ineffective on encoded URLs inside file inclusion syntax's link parameter.
• (T108138) SECURITY: Sysops can undelete pages, although the page is protected against it.

== MediaWiki 1.28 ==

=== Changes since 1.28.0-rc1 ===

• (T148957) Replace wgShowExceptionDetails with wgShowDBErrorBacktrace on db errors.
• (T148956) Only apply wgDBschema to postgres/mssql.
• (T145991) Introduce separate log action for deleting pages on move.
• (T141474) (T110464) Bypass login page if no user input is required.

=== Changes since 1.28.0-rc0 ===

• (T142210) The changes to move the parser "NewPP limit report" from a HTML comment to a machine-readable JavaScript config option 'wgPageParseReport' have been undone. They caused the human-readable limit report to be shown incompletely or not at all. ParserOutput::setLimitReportData() and getLimitReportData() behave as they did in MediaWiki 1.27 again.
• (T149510) Value of {{DISPLAYTITLE:}} parser function will not be used for the text of subheadings on a category page when creating it. This wasn't working correctly.
• (T106793) MediaWiki will no longer try to perform a HTTP redirect to the canonical pretty URL when a non-pretty URL is used. It resulted in redirect loops in some clients and in some server configurations. This undoes a change made in MediaWiki 1.26.
• (T149759) manifest_version: 2 was removed.

=== Configuration changes in 1.28 ===

• $wgSend404Code now affects status code of action=history if the page is not there.
• BREAKING CHANGE: $wgHTTPProxy is now required for all external requests made by MediaWiki via a proxy. Relying on the http_proxy environment variable is no longer supported.
• The load.php entry point now enforces the existing policy of not allowing access to session data, which includes the session user and the session user's language. If such access is attempted, an exception will be thrown.
• The number of internal PBKDF2 iterations used to derive the session secret is configurable via $wgSessionPbkdf2Iterations.
• Upload dialog's file upload log comment can now be configured separately for local and foreign uploads.
• $wgForeignUploadTargets now defaults to [ 'local' ], where 'local' signifies local uploads. A value of [] (empty array) now means that no upload targets are allowed, effectively disabling the upload dialog.
• The deprecated $wgEditEncoding variable has been removed; it was only used for Esperanto language character conversion. You are now recommended to use input methods provided by the UniversalLanguageSelector extension.
• When $wgPingback is true, MediaWiki will periodically ping https://www.mediawiki.org/beacon with basic information about the local MediaWiki installation. This data includes, for example, the type of system, PHP version, and chosen database backend. This behavior is off by default.
• When $wgEditSubmitButtonLabelPublish is true, MediaWiki will label the button to store-to-database-and-show-to-others as "Publish page"/"Publish changes"; if false, the default, they will be "Save page"/"Save changes".
• The 'editcontentmodel' permission is now granted to all logged-in users ('user'). instead of just administrators ('sysop'). Documentation for this feature is available at https://www.mediawiki.org/wiki/Help:ChangeContentModel.
• $wgRevisionCacheExpiry is now set to one week by default instead of being disabled.
• Magic links are now disabled by default, and can be re-enabled by modifying the value of $wgEnableMagicLinks. Their usage is discouraged, but if they are manually enabled, a tracking category will be added to help identify usage and make it easier to migrate away from. If you depend upon magic link functionality, it is requested that you comment on https://www.mediawiki.org/wiki/Requests_for_comment/Future_of_magic_links and explain your use case(s).
• New config variable $wgCSPFalsePositiveUrls to control what URLs to ignore in upcoming Content-Security-Policy feature's reporting.

=== New features in 1.28 ===

• User::isBot() method for checking if an account is a bot role account.
• Added a new 'slideshow' mode for galleries.
• Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
• Added a new hook, 'ApiMakeParserOptions', to allow extensions to better interact with API parsing.
• Added a new hook, 'UploadVerifyUpload', which can be used to reject a file upload. Unlike 'UploadVerifyFile' it provides information about upload comment and the file description page, but does not run for uploads to stash.
• (T141604) Extensions can now provide a better error message when their maintenance scripts are run without the extension being installed.
• (T8948) Numeric sorting in categories is now supported by setting $wgCategoryCollation to 'uca-default-u-kn' or 'uca-<langcode>-u-kn'. If you can't use UCA collations, a 'numeric' collation is also available. If migrating from another collation, you will need to run the updateCollation.php maintenance script.
• Two new codes have been added to #time parser function: "xit" for days in current month, and "xiz" for days passed in the year, both in Iranian calendar.
• mw.Api has a new option, useUS, to use U+001F (Unit Separator) when appropriate for sending multi-valued parameters. This defaults to true when the mw.Api instance seems to be for the local wiki.
• After a client performs an action which alters a database that has replica databases, MediaWiki will wait for the replica databases to synchronize with the master database while it renders the HTML output. However, if the output is a redirect to another wiki on the wiki farm with a different domain, MediaWiki will instead alter the redirect URL to include a ?cpPosTime parameter that triggers the database synchronization when the URL is followed by the client. The same-domain case uses a new cpPosTime cookie.
• Added new hooks, 'ApiQueryBaseBeforeQuery', 'ApiQueryBaseAfterQuery', and 'ApiQueryBaseProcessRow', to make it easier for extensions to add 'prop' and 'show' parameters to existing API query modules.

=== External library changes in 1.28 ===

==== Upgraded external libraries ====

• Updated es5-shim from v4.1.5 to v4.5.8
• Updated composer/semver from v1.4.1 to v1.4.2
• Updated wikimedia/php-session-serializer from v1.0.3 to v1.0.4

==== New external libraries ====

• Added wikimedia/scoped-callback v1.0.0
• Added wikimedia/wait-condition-loop v1.0.1

=== Bug fixes in 1.28 ===

• (T146496) action=history pages should return 404 HTTP error code if the page does not exist
• (T137264) SECURITY: XSS in unclosed internal links
• (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
• (T133147) SECURITY: Require login to preview user CSS pages
• (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is the top file
• (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in permissions
• (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
• (T139670) Move 'UserGetRights' call before application of Session::getAllowedUserRights()

=== Action API changes in 1.28 ===

• Added 'maxarticlesize' property to action=query&meta=siteinfo which contains the value of $wgMaxArticleSize.
• Property 'modulemessages' from action=parse&prop=modules was removed (deprecated since 1.26).
• The following response properties from action=login, deprecated in 1.27, are now removed: lgtoken, cookieprefix, sessionid. Clients should handle cookies to properly manage session state.
• Submitting the lgtoken and lgpassword parameters in the query string to action=login is now deprecated and outputs a warning. They should be submitted in the POST body instead.
• Submitting sensitive authentication request parameters to action=clientlogin, action=createaccount, action=linkaccount, and action=changeauthenticationdata in the query string is now deprecated and outputs a warning. They should be submitted in the POST body instead.
• (T141960) Multi-valued parameters may now be separated using U+001F (Unit Separator) instead of the pipe character. This will be useful if some of the multiple values need to contain pipes, e.g. for action=options.
• The API will now warn if input is not NFC-normalized Unicode or if it contains invalid characters.
• The 'normalized' list output by action=query and other modules that use ApiPageSet may contain entries where the 'from' value is percent-encoded as the raw value cannot be represented in a valid API response. These are indicated by a 'fromencoded' boolean alongside the existing 'from' parameter.
• (T28680) action=paraminfo can now return info about all submodules of a module without listing them all explicitly.
• (T146770) It is now possible to assert that the current user is a specific named user, using the 'assertuser' parameter.
• (T141963) Added a 'known' property when missing-but-known titles (e.g. from the 'TitleIsAlwaysKnown' hook) are output in various modules.

=== Action API internal changes in 1.28 ===

• Added a new hook, 'ApiMakeParserOptions', to allow extensions to better interact with ApiParse and ApiExpandTemplates.
• (T139565) SECURITY: API: Generate head items in the context of the given title
• (T115333) SECURITY: Check read permission when loading page content in ApiParse
• ApiBase::getResultData() was removed (deprecated since 1.25)
• ApiBase::makeHelpArrayToString() was removed (deprecated since 1.25)
• ApiBase::makeHelpMsgParameters() was removed (deprecated since 1.25)
• ApiBase::makeHelpMsg() was removed (deprecated since 1.25)
• ApiFormatBase::formatHTML() was removed (deprecated since 1.25)
• ApiFormatBase::getNeedsRawData() was removed (deprecated since 1.25)
• ApiFormatBase::getWantsHelp() was removed (deprecated since 1.25)
• ApiFormatBase::setBufferResult() was removed (deprecated since 1.25)
• ApiFormatBase::setHelp() was removed (deprecated since 1.25)
• ApiFormatBase::setUnescapeAmps() was removed (deprecated since 1.25)
• ApiMain::makeHelpMsgHeader() was removed (deprecated since 1.25)
• ApiMain::reallyMakeHelpMsg() was removed (deprecated since 1.25)
• ApiMain::setHelp() was removed (deprecated since 1.25)
• ApiResult::beginContinuation() was removed (deprecated since 1.25)
• ApiResult::cleanUpUTF8() was removed (deprecated since 1.25)
• ApiResult::convertStatusToArray() was removed (deprecated since 1.25)
• ApiResult::disableSizeCheck() was removed (deprecated since 1.24)
• ApiResult::enableSizeCheck() was removed (deprecated since 1.24)
• ApiResult::endContinuation() was removed (deprecated since 1.25)
• ApiResult::getData() was removed (deprecated since 1.25)
• ApiResult::getIsRawMode() was removed (deprecated since 1.25)
• ApiResult::setContent() was removed (deprecated since 1.25)
• ApiResult::setContinueParam() was removed (deprecated since 1.25)
• ApiResult::setElement() was removed (deprecated since 1.25)
• ApiResult::setGeneratorContinueParam() was removed (deprecated since 1.25)
• ApiResult::setIndexedTagName_internal() was removed (deprecated since 1.25)
• ApiResult::setIndexedTagName_recursive() was removed (deprecated since 1.25)
• ApiResult::setMainForContinuation() was removed (deprecated since 1.25)
• ApiResult::setParsedLimit() was removed (deprecated since 1.25)
• ApiResult::setRawMode() was removed (deprecated since 1.25)
• ApiResult::size() was removed (deprecated since 1.25)
• Added new hooks, 'ApiQueryBaseBeforeQuery', 'ApiQueryBaseAfterQuery', and 'ApiQueryBaseProcessRow', to make it easier for extensions to add 'prop' and 'show' parameters to existing API query modules. A query module can enable these hooks by passing an array for $hookData to ApiQueryBase::select() and by calling ApiQueryBase->processRow() before adding a row's data to the result.

=== Languages updated in 1.28 ===

MediaWiki supports over 375 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru, BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
• (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha, Saiddzone Saimawnkham, Saosukham, and Sengwan.
• Czech (cs) and Slovak (sk) set as reciprocal fallbacks.
• (T146744) Livvi-Karelian (olo) namespace messages created thanks to translator Ilja.mos.

=== Other changes in 1.28 ===

• (T128697) Improved handling of large diffs.
• [BREAKING CHANGE] $wgExtendedLoginCookies has been removed. You can use or update a custom session provider if needed.
• Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
• The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
• SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
• The 'UserLoginComplete' hook has a new parameter to differentiate between actual login and visiting the login page while already logged in.
• ResourceLoader::makeLoaderURL() was removed (deprecated since 1.24).
• $.fn.liveAndTestAtStart was removed (deprecated since 1.24).
• mw.util.tooltipAccessKeyPrefix was removed (deprecated since 1.24).
• mw.util.tooltipAccessKeyRegexp was removed (deprecated since 1.24).
• Linker::link() and Linker::linkKnown() were deprecated; please instead use MediaWiki\Linker\LinkRenderer. In addition, the LinkBegin and LinkEnd hooks were replaced by HtmlPageLinkRendererBegin and HtmlPageLinkRendererEnd respectively. See docs/hooks.txt for the specific changes needed for those hooks.
• Linker::formatSize() was deprecated. Use Language::formatSize() directly.
• Aliases for Linker methods, deprecated since 1.21, were removed from Skin:
  • Skin::commentBlock() (use Linker::commentBlock() instead)
  • Skin::generateRollback() (use Linker::generateRollback() instead)
  • Skin::link() (use MediaWiki\Linker\LinkRenderer instead)
  • Skin::linkKnown() (use MediaWiki\Linker\LinkRenderer instead)
  • Skin::userLink() (use Linker::userLink() instead)
  • Skin::userToolLinks() (use Linker::userToolLinks() instead)
• Disabled "bug 2702" HTML tidying of parsed UI messages on wikis where Tidy is disabled.
• DifferenceEngine::generateDiffBody() was removed (deprecated since 1.21).
• UploadBase::stashFileGetKey() and UploadBase::stashSession() were deprecated. Use ...->stashFile()->getFileKey() instead.
• "Public domain" was removed as a wiki license option from the installer, in favour of CC-0.
• AuthenticationRequest::$required is now changed from REQUIRED to PRIMARY_REQUIRED on requests needed by primary providers even if all primaries need them. Primary providers are discouraged from returning multiple REQUIRED requests.
• OOjs UI PHP widgets constructed with the 'infusable' => true config option will no longer be automatically infused. You should call OO.ui.infuse() on them yourself from your JavaScript code.
• parserTests.php has moved to tests/parser/parserTests.php
• The command line options specific to parser tests have been removed from phpunit.php: --regex and --keep-uploads. Instead of --regex, use --filter. Instead of --keep-uploads, use the same option to parserTests.php, but you must specify a directory with --upload-dir.
• The 'jquery.arrowSteps' ResourceLoader module is now deprecated.
• IP::isConfiguredProxy() and IP::isTrustedProxy() were removed. Callers should migrate to using the same functions on a ProxyLookup instance, obtainable from MediaWikiServices.
• The ArticleAfterFetchContent, ArticleInsertComplete, ArticleSave, ArticleSaveComplete, ArticleViewCustom, EditFilterMerged, EditPageGetDiffText, EditPageGetPreviewText and ShowRawCssJs hooks will now emit deprecation warnings if used.
• (T68404) CSS3 attr() function with url type is no longer allowed in inline styles.
• Database::getSearchEngine() is deprecated, use SearchEngineFactory::getSearchEngineClass instead.

== Compatibility ==

MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for HHVM 3.6.5 or later.

MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but support for them is somewhat less mature. There is experimental support for Oracle and Microsoft SQL Server.

The supported versions are:

• MySQL 5.0.3 or later
• PostgreSQL 8.3 or later
• SQLite 3.3.7 or later
• Oracle 9.0.1 or later
• Microsoft SQL Server 2005 (9.00.1399)

== Upgrading ==

1.28 has several database changes since 1.27, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site).

If upgrading from before 1.11, and you are using a wiki as a commons repository, make sure that it is updated as well. Otherwise, errors may arise due to database schema changes.

If upgrading from before 1.7, you may want to run refreshLinks.php to ensure new database fields are filled with data.

If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed with MediaWiki 1.21.

Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed upgrade instructions.

For notes on 1.27.x and older releases, see HISTORY.

== Online documentation ==

Documentation for both end-users and site administrators is available on MediaWiki.org, and is covered under the GNU Free Documentation License (except for pages that explicitly state that their contents are in the public domain):

   https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation

== Mailing list ==

A mailing list is available for MediaWiki user support and discussion:

   https://lists.wikimedia.org/mailman/listinfo/mediawiki-l

A low-traffic announcements-only list is also available:

   https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce

It's highly recommended that you sign up for one of these lists if you're going to run a public MediaWiki, so you can be notified of security fixes.

== IRC help ==

There's usually someone online in #mediawiki on irc.freenode.net.

= MediaWiki 1.27 =

== MediaWiki 1.27.7 ==

This is a maintenance release of the MediaWiki 1.27 branch.

=== Changes since MediaWiki 1.27.6 ===

• Add missing use MediaWiki\MediaWikiServices; to LogEventsList.php.
• Remove broken tests from ApiBlockTest.php.

== MediaWiki 1.27.6 ==

This is a security and maintenance release of the MediaWiki 1.27 branch.

=== Changes since MediaWiki 1.27.5 ===

• (T204729) WatchedItemStore::countVisitingWatchersMultiple() shouldn't query all titles when asked for none.
• (T109121) Remove deprecated pear/mail_mime-decode from composer suggested libraries.
• (T207241) Augment precision of updatelist time.
• (T207540) Include IP address in "Login for $1 succeeded" log entry.
• (T205765) Don't link to the obsolete "Extension Matrix" page in installer.
• (T207603) SECURITY: User JS may no longer be loaded with mime type text/javascript if there is no account associated with the username.
• (T113042) SECURITY: Do not allow loading pages raw with a text/javascript MIME type if non-admins can edit the page.
• (T207541) Pass email address to mail().
• (T209335) Clarify the default sidebar 'Help' link is about MediaWiki itself.
• (T213359) Update mediawiki/mediawiki-codesniffer to 0.8.1.
• (T208871) The hard-coded Google search form on the database error page was removed.
• (T216968) Return pageid as int in both list=iwbacklinks and list=langbacklinks.
• (T218608) Fix an issue that prevents Extension:OAuth working when $wgBlockDisablesLogin is true.
• (T219728) Added support for new Japanese era name "Reiwa".
• (T25227) SECURITY: action=logout now requires to be posted and have a csrf token.
• SpecialPage::checkLoginSecurityLevel() will now preserve POST data when reauthenticating.
• FormSpecialPage::execute() will now call checkLoginSecurityLevel() if getLoginSecurityLevel() returns non-false.
• (T197279) SECURITY: Fix reauth in Special:ChangeEmail.
• (T208881) SECURITY: blacklist CSS var().
• (T209794) SECURITY: rate-limit and prevent blocked users from changing email.
• (T199540) SECURITY: API: Respect $wgBlockCIDRLimit in action=block.
• (T212118) SECURITY: Fix cache mode for (un)patrolled recent changes query.
• (T222036, T222038) SECURITY: Add permission check for user is permitted to view the log type.
• (T221739) SECURITY: resources: Patch jQuery 1.11.3 for CVE-2019-11358.

== MediaWiki 1.27.5 ==

This is a security and maintenance release of the MediaWiki 1.27 branch.

=== Changes since 1.27.4 ===

• (T169545, CVE-2018-0503) SECURITY: $wgRateLimits entry for 'user' overrides 'newbie'.
• (T194605, CVE-2018-0505) SECURITY: BotPasswords can bypass CentralAuth's account lock.
• Upgraded Moment.js from v2.8.4 to v2.19.3.
• (T160298) Fixed Special:ActiveUsers due to bad backport.
• (T87572) Make FormatMetadata::flattenArrayReal() work for an associative array.
• Updated list of SPDX licenses for extensions.
• (T189567) the CLI installer (maintenance/install.php) learned to detect and include extensions. Pass --with-extensions to enable that feature.
• (T192584) Stop incorrectly passing USE INDEX to RecentChange::newFromConds().
• Add default edit rate limit of 90 edits/minute for all users.
• (T196125) php-memcached 3.0 (provided with PHP 7.0) is now supported.
• (T196672) The mtime of extension.json files is now able to be zero.
• (T118683) Fix exception from &$user deref on HHVM in the TitleMoveComplete hook.
• (T180403) Validate $length in padleft/padright parser functions.
• (T143790) Make $wgEmailConfirmToEdit only affect edit actions.
• Special:BotPasswords now requires reauthentication.
• (T191608, T187638) Add 'logid' parameter to Special:Log.
• (T193829) Indicate when a Bot Password needs reset.
• (T151415) Log email changes.
• (T118420) Unbreak Oracle installer.

== MediaWiki 1.27.4 == This is a security and maintenance release of the MediaWiki 1.27 branch.

=== Changes since 1.27.3 ===

• (T100085) Better handling of jobs execution in post-connection shutdown.
• (T141604) Support conditionally registered namespaces.
• (T167798) Fix highlighting for phrase queries and phrase search.
• (T151136) Provide credits information to callbacks.
• (T160462) Allow namespaces defined in extension.json to be overwritten locally.
• (T168856) Allow SVGs created by Dia to be uploaded.
• (T144705) (T148662) Password reset link is no longer shown when no reset options are available.
• (T143788) (T174262) Various backports for PHP 7.0 and 7.1 support.
• (T66795) $wgUserEmailUseReplyTo is now true by default to work around restrictive DMARC policies.
• DB_REPLICA constant added from REL1_28+ to ease backports to extensions and core.
• (T175439) Unbreak Postgres Updater when setting defaults for a column.
• (T160298) Remove use of implicitGroupBy() in ActiveUsersPager.
• (T142304) Allow putting the app ID in the password for bot passwords.
• Updated dev dependancy phpunit/phpunit from v4.8.24 to v4.8.36.
• (T178451) SECURITY: Potential XSS when $wgShowExceptionDetails = false and browser sends non-standard url escaping.
• (T165846) SECURITY: BotPassword login attempts weren't throttled.
• (T128209) SECURITY: Reflected File Download from api.php.
• (T134100) SECURITY: Do not reveal if user exists during login failure.
• (T176247) SECURITY: Ensure Message::rawParams can't lead to XSS.
• (T125163) SECURITY: Make anchor for headlines escape > and <.
• (T180237) SECURITY: Protect vendor folder with .htaccess.
• (T180231) SECURITY: Remove PHPUnit file with known RCE if exists in update.php.
• (T124404) SECURITY: XSS in langconverter when regex hits pcre.backtrack_limit.
• (T119158) SECURITY: Handle -{}- syntax in attributes safely.

== MediaWiki 1.27.3 == Due to a packaging error, the wrong version of the SyntaxHighlight extension was included in the tarball version of MediaWiki 1.27.2. The version included had a serious security issue in it (T158689). There was also some minor code fixes in MediaWiki itself since 1.27.2, but none of them were security relevant.

=== Changes since 1.27.2 ===

• (T145664) Fix broken wincache merge() implementation
• (T163434) Add wikimedia/testing-access-wrapper for forwards compatibility
• (T153505) Fix php warnings on php 7.1 due to use of &$this

== MediaWiki 1.27.2 == This is a security and maintenance release of the MediaWiki 1.27 branch.

ApiCreateAccount was removed in 1.27.0. It was incorrectly still marked as deprecated (rather than already removed) in the RELEASE-NOTES at the point 1.27.0 was released.

=== Changes since 1.27.1 ===

• (T68404) CSS3 attr() function with url type argument is no longer allowed in inline styles.
• $wgRunJobsAsync is now false by default (T142751). This change only affects wikis with $wgJobRunRate > 0.
• (T152717) Better escaping for PHP mail() command
• Submitting the lgtoken and lgpassword parameters in the query string to action=login is now deprecated and outputs a warning. They should be submitted in the POST body instead.
• Submitting sensitive authentication request parameters to action=clientlogin, action=createaccount, action=linkaccount, and action=changeauthenticationdata in the query string is now deprecated and outputs a warning. They should be submitted in the POST body instead.
• (T158766) Avoid SQL error on MSSQL when using selectRowCount()
• (T145635) Fix too long index error when installing with MSSQL.
• (T156184) $wgRawHtml will no longer apply to internationalization messages.
• (T160519) CACHE_ANYTHING will not be CACHE_ACCEL if no accelerator is installed.
• (T109140) (T122209) SECURITY: Special:UserLogin and Special:Search allow redirect to interwiki links.
• (T144845) SECURITY: XSS in SearchHighlighter::highlightText() when $wgAdvancedSearchHighlighting is true.
• (T125177) SECURITY: API parameters may now be marked as "sensitive" to keep their values out of the logs.
• (T150044) SECURITY: "Mark all pages visited" on the watchlist now requires a CSRF token.
• (T156184) SECURITY: Escape content model/format url parameter in message.
• (T151735) SECURITY: SVG filter evasion using default attribute values in DTD declaration.
• (T161453) SECURITY: LocalisationCache will no longer use the temporary directory in it's fallback chain when trying to work out where to write the cache.
• (T48143) SECURITY: Spam blacklist ineffective on encoded URLs inside file inclusion syntax's link parameter.
• (T108138) SECURITY: Sysops can undelete pages, although the page is protected against it.

== MediaWiki 1.27.1 ==

This is a maintenance release of the MediaWiki 1.27 branch.

=== Changes since 1.27.0 ===

• BREAKING CHANGE: $wgHTTPProxy is now required for all external requests made by MediaWiki via a proxy. Relying on the http_proxy environment variable is no longer supported.
• (T139565) SECURITY: API: Generate head items in the context of the given title
• (T137264) SECURITY: XSS in unclosed internal links
• (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
• (T133147) SECURITY: Require login to preview user CSS pages
• (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is the top file
• (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in permissions
• (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
• (T115333) SECURITY: Check read permission when loading page content in ApiParse
• (T57548) Remove support for $wgWellFormedXml = false, all output is now well formed
• (T139670) Move 'UserGetRights' call before application of Session::getAllowedUserRights()

== MediaWiki 1.27.0 ==

=== PHP version requirement in 1.27 === As of 1.27, MediaWiki now requires PHP 5.5.9 or higher (see Compatibility section). Additionally, the following PHP extensions are required:

• ctype
• iconv
• json
• mbstring (new requirement in 1.27)
• xml The following PHP extensions are strongly recommended:
• openssl

=== Configuration changes in 1.27 ===

• $wgAllowMicrodataAttributes and $wgAllowRdfaAttributes were removed, now always enabled. If you use RDFa on your wiki, you now have to explicitly set $wgHtml5Version to 'HTML+RDFa 1.0' or 'XHTML+RDFa 1.0'.
• $wgUseLinkNamespaceDBFields was removed.
• Deprecated $wgResourceLoaderMinifierStatementsOnOwnLine and $wgResourceLoaderMinifierMaxLineLength, because there was little value in making the behavior configurable. The default values (false for the former, 1000 for the latter) are now hard-coded.
• $wgDebugDumpSqlLength was removed (deprecated in 1.24).
• $wgDebugDBTransactions was removed (deprecated in 1.20).
• $wgUseXVO has been removed, as it provides functionality only used by custom Wikimedia patches against Squid 2.x that probably noone uses in production anymore. There is now $wgUseKeyHeader that provides similar functionality but instead of the MediaWiki-specific X-Vary-Options header, uses the draft Key header standard.
• $wgScriptExtension (and support for '.php5' entry points) was removed. See the deprecation notice in the release notes for version 1.25 for advice on how to preserve support for '.php5' entry points via URL rewriting.
• Password handling via the User object has been deprecated and partially removed, pending the future introduction of AuthManager. In particular: ** expirePassword(), getPasswordExpireDate(), resetPasswordExpiration(), and getPasswordExpired() have been removed. They were unused outside of core. ** The mPassword, mNewpassword, mNewpassTime, and mPasswordExpires fields are now private and will be removed in the future. ** The getPassword() and getTemporaryPassword() methods now throw BadMethodCallException and will be removed in the future. ** The ability to pass 'password' and 'newpassword' to createNew() has been removed. The only users of it seem to have been using it to set invalid passwords, and so shouldn't be greatly affected. ** setPassword(), setInternalPassword(), and setNewpassword() have been deprecated, pending the introduction of AuthManager. ** User::randomPassword() is deprecated in favor of a new method PasswordFactory::generateRandomPasswordString() ** User::getPasswordFactory() is deprecated, callers should just create a PasswordFactory themselves. ** A new constructor, User::newSystemUser(), has been added to simplify the creation of passwordless "system" users for logged actions.
• $wgMaxSquidPurgeTitles was removed.
• $wgAjaxWatch was removed. This is now enabled by default.
• $wgUseInstantCommons now hotlinks Commons images by default instead of downloading originals and thumbnailing them locally. This allows wikis to save on CPU and bandwidth while reducing time to first byte for pages, even without a thumbnail handler. See $wgForeignFileRepos documentation for tweaks.
• (T27397) WebP is enabled by default as an uploadable filetype.
• (T48998) $wgArticlePath must now be either a full url, or start with a "/".
• $wgRateLimitLog was removed; use $wgDebugLogGroups['ratelimit'] instead.
• Deprecated API formats dbg, txt, and yaml have been removed.
• CLDRPluralRule* classes have been replaced with wikimedia/cldr-plural-rule-parser.
• Removed $wgProfilePerHost, $wgUDPProfilerHost, $wgUDPProfilerPort, $wgUDPProfilerFormatString, $wgStatsMethod, $wgAggregateStatsID, $wgStatsFormatString, and $wgProfileCallTree (deprecated since 1.20).
• For proper operation of LocalIdLookup with shared user tables, ensure that $wgSharedDB and $wgSharedTables are properly set even on the "central" wiki that all others are sharing from and that $wgLocalDatabases is set to the full list of sharing wikis on all those wikis.
• Massive overhaul to session handling: ** $wgSessionsInObjectCache is no longer supported and must be true, due to MediaWiki\Session\SessionManager. $wgSessionHandler is similarly no longer used. ** ObjectCacheSessionHandler is removed, replaced with MediaWiki\Session\PhpSessionHandler. ** PHP session handling in general ($_SESSION, session_id(), and so on) is deprecated. Use MediaWiki\Session\SessionManager instead. A new config variable, $wgPHPSessionHandling, is available to cause use of $_SESSION to issue a deprecation warning or to cause most PHP session handling to throw exceptions. ** Deprecated UserSetCookies hook. Session-handling extensions should generally be creating a custom subclass of CookieSessionProvider. Other extensions messing with cookies can no longer count on user data being saved in cookies versus other methods. ** Deprecated UserLoadFromSession hook, extensions should create a MediaWiki\Session\SessionProvider. ** The User cannot be loaded from session until after Setup.php completes. Attempts to do so will be ignored and the User will remain unloaded. ** CSRF tokens may be fetched from the MediaWiki\Session\Session, which uses the MediaWiki\Session\Token class.
• MediaWiki will now auto-create users as necessary, removing the need for extensions to do so. An 'autocreateaccount' right is added to allow auto-creation when 'createaccount' is not granted to all users.
• Deprecated AuthPluginAutoCreate hook in favor of LocalUserCreated.
• Most cookie-handling methods in User are deprecated.
• $wgAllowAsyncCopyUploads and $CopyUploadAsyncTimeout were removed. This was an experimental feature that has never worked.
• Login and createaccount tokens now vary by timestamp.
• LoginForm::getLoginToken() and LoginForm::getCreateaccountToken() return a MediaWiki\Session\Token, and tokens must be checked using that class's methods.
• $wgEnotifUseJobQ was removed and the job queue is always used.
• The functionality of the ApiSandbox extension has been merged into core. The extension should no longer be used.
• $wgPreloadJavaScriptMwUtil was removed (deprecated in 1.26). Extensions, skins, gadgets and scripts that use the mediawiki.util module must express a dependency on it.
• $wgIncludeLegacyJavaScript, deprecated in MediaWiki 1.26, now defaults false. Extensions, skins, gadgets and scripts that need the mediawiki.legacy.wikibits module should express a dependency on it.
• Removed configuration option $wgCopyrightIcon (deprecated since 1.18). Use $wgFooterIcons['copyright']['copyright'] instead.
• If the openssl and mcrypt PHP extensions are both unavailable, secure session storage (used for login) will raise an exception. This exception may be bypassed by setting $wgSessionInsecureSecrets = true.
• Massive overhaul to authentication: ** AuthPlugin and AuthPluginUser are deprecated. ** LoginForm and associated templates are deprecated. Extensions which called static LoginForm methods should be converted into authentication providers. ** The following hooks are deprecated: *** AbortAutoAccount (create a MediaWiki\Auth\PreAuthenticationProvider instead) *** AbortLogin (create a MediaWiki\Auth\PreAuthenticationProvider instead) *** AbortNewAccount (create a MediaWiki\Auth\PreAuthenticationProvider instead) *** AddNewAccount (use LocalUserCreated instead) *** AuthPluginSetup (create a MediaWiki\Auth\PrimaryAuthenticationProvider instead) *** ChangePasswordForm (use AuthChangeFormFields instead, or security levels) *** LoginUserMigrated (create a MediaWiki\Auth\PreAuthenticationProvider instead) *** UserCreateForm (create a MediaWiki\Auth\AuthenticationProvider of some type instead) *** UserLoginForm (create a MediaWiki\Auth\AuthenticationProvider of some type instead) ** The following hooks are removed: *** AbortChangePassword *** LoginPasswordResetMessage *** PrefsPasswordAudit ** The UserLoginComplete hook will no longer be called for all logins, only for those via the web UI. Use UserLoggedIn if you need to do something on all logins. ** $wgRequirePasswordforEmailChange is removed.

=== New features in 1.27 ===

• $wgDataCenterUpdateStickTTL was also added. This decides how long a user sticks to the primary DC (via cookies) after they make changes to the site.
• Added a new hook, 'UserMailerTransformContent', to transform the contents of an email. This is similar to the EmailUser hook but applies to all mail sent via UserMailer.
• Added a new hook, 'UserMailerTransformMessage', to transform the contents of an emai after MIME encoding.
• Added a new hook, 'UserMailerSplitTo', to control which users have to be emailed separately (ie. there is a single address in the To: field) so user-specific changes to the email can be applied safely.
• $wgCdnMaxageLagged was added, which limits the CDN cache TTL when any load balancer uses a DB that is lagged beyond the 'max lag' setting in the relevant section of $wgLBFactoryConf.
• User::newSystemUser() may be used to simplify the creation of passwordless "system" users for logged actions from scripts and extensions.
• Extensions can now return detailed error information via the API when preventing user actions using 'getUserPermissionsErrors' and similar hooks by using ApiMessage instances instead of strings for the $result value.
• $wgAPIMaxLagThreshold was added to limit bot changes when databases lag becomes too high.
• Skins and extensions can now use FlexBox mixins (.flex-display(@display: flex) and .flex(@grow: 1, @shrink: 1, @width: auto, @order: 1)) in Less to create cross-browser-compatible FlexBox rules. Users will still need to add fallback float rules or the like for compatibility with IE9- separately.
• Added MWTimestamp::getTimezoneString() which returns the localized timezone string, if available. To localize this string, see the comments of $wgLocaltimezone in includes/DefaultSettings.php.
• Added CentralIdLookup, a service that allows extensions needing a concept of "central" users to get that without having to know about specific central authentication extensions.
• $wgMaxUserDBWriteDuration added to limit huge user-generated transactions. Regular web request transactions that takes longer than this are aborted.
• Added a new hook, 'TitleMoveCompleting', which runs before a page move is committed.
• $wgCdnReboundPurgeDelay was added to provide secondary delayed purges of URLs from CDN to mitigate DB replication lag and WAN cache purge lag.
• (T49162) Installer will default to setting CACHE_ACCEL as the main cache type if it is available.
• It is now possible to patrol file uploads (both for new files and new versions of existing files). Special:NewFiles has gained an option to filter by patrol status. This functionality can be disabled using $wgUseFilePatrol.
• MediaWiki\Session infrastructure allows for easier use of session mechanisms other than the usual cookies. ** SessionMetadata and SessionCheckInfo hooks allow for setting and checking custom session metadata.
• Added MWGrants and associated configuration settings $wgGrantPermissions and $wgGrantPermissionGroups to hold configuration for authentication features such as OAuth that want to allow restricting the user rights a user may make use of. ** If you're already using the OAuth extension, these new variables are identical to (and will replace) $wgMWOAuthGrantPermissions and $wgMWOAuthGrantPermissionGroups.
• Added MWRestrictions as a class to check restrictions on a WebRequest, e.g. to assert that the request comes from a particular IP range.
• Added bot passwords, a rights-restricted login mechanism for API-using bots.
• Whitelisted the following HTML attributes for all elements in wikitext: aria-describedby, aria-flowto, aria-label, aria-labelledby, aria-owns.
• Removed "presentation" restriction on the HTML role attribute in wikitext. All values are now allowed for the role attribute.
• $wgContentHandlers now also supports callbacks to create an instance of the appropriate ContentHandler subclass.
• Added $wgAuthenticationTokenVersion, which if non-null prevents the user_token database field from being exposed in cookies. Setting this would be a good idea, but will log out all current sessions.
• $wgEventRelayerConfig was added, for managing PubSub event relay configuration, specifically for reliable CDN url purges.
• Requests have unique IDs, equal to the UNIQUE_ID environment variable (when MediaWiki is behind Apache+mod_unique_id or something similar) or a randomly- generated 24-character string. This request ID is used to annotate log records and error messages. It is available client-side via mw.config.get( 'wgRequestId' ). The request ID supplants exception IDs. Accordingly, MWExceptionHandler::getLogId() is deprecated.
• (T33313) Add a preference for watching uploads by default, also applies to API-based upload tools.
• $wgJpegPixelFormat was added to override chroma subsampling for JPEG image thumbnails created via ImageMagick. Defaults to 'yuv420', providing bandwidth savings versus the previous behavior on many files.
• MediaWiki\Auth infrastructure (called "AuthManager") allows for more flexible configuration of multiple authentication pieces that was possible with AuthPlugin. For example, it's now easy to plug in second-factor authentication, or add additional checks to the login process, or to support multiple login methods at once, or to support non-password-based login methods. ** Providers are configured via the global setting $wgAuthManagerConfig. ** A global, $wgDisableAuthManager, is temporarily available to disable AuthManager until extensions are ready to support it. ** New hook, AuthChangeFormFields, to adjust the form fields on AuthManager-related special pages. ** New hook, AuthManagerLoginAuthenticateAudit, for additional logging of AuthManager-related authentication requests. ** New hook, ChangeAuthenticationDataAudit, for additional logging of AuthManager-related authentication data changes. ** New hook, SecuritySensitiveOperationStatus, to work with the new mechanism for requiring a recent login before taking security-sensitive operations like changing a password. ** Two new globals, $wgChangeCredentialsBlacklist and $wgRemoveCredentialsBlacklist can be used to prevent the web UI and the API changing certain authentication data.
• The file upload dialog (available if you install WikiEditor or VisualEditor) can now be configured using $wgUploadDialog.

=== External library changes in 1.27 ===

==== Upgraded external libraries ====

• Updated oojs/oojs-ui from v0.12.12 to v0.13.3.
• Updated composer/semver from v1.0.0 to v1.2.0.
• Updated liuggio/statsd-php-client to 1.0.18.
• Updated QUnit from v1.18.0 to v1.22.0.

==== New external libraries ====

• Added wikimedia/base-convert v1.0.1.
• Added wikimedia/cldr-plural-rule-parser v1.0.0.
• Added wikimedia/relpath v1.0.3.
• Added wikimedia/running-stat v1.1.0.
• Added wikimedia/php-session-serializer v1.0.3.

==== Removed and replaced external libraries ====

=== Bug fixes in 1.27 ===

• Special:Upload will now display correct maximum allowed file size when running under HHVM (T116347).
• (T54077) The APIEditBeforeSave hook will once again give only the content of the section being edited, rather than the whole revision. This reverts the change made in MediaWiki 1.22.

=== Action API changes in 1.27 ===

• Added list=allrevisions.
• generator=recentchanges now has the option to generate revids.
• ApiPageSet::setRedirectMergePolicy() was added. This allows generator modules to define how generator data for a redirect source gets merged into the redirect destination.
• prop=imageinfo&iiprop=uploadwarning will no longer include the possibility of "was-deleted" warning.
• Added difftotextpst to query=revisions which preforms a pre-save transform on the text before diffing it.
• Deprecated formats dbg, txt, and yaml have been removed.
• (T47988) The protect log event details now use new-style formatting.
• The following response properties from action=login are deprecated, and may be removed in the future: lgtoken, cookieprefix, sessionid. Clients should handle cookies to properly manage session state.
• action=login transparently allows login using bot passwords. Clients should merely need to change the username and password used after setting up a bot password.
• action=upload no longer understands statuskey, asyncdownload or leavemessage.
• Several changes when $wgDisableAuthManager is false: ** action=login is deprecated for uses other than bot passwords. ** list=users can now indicate if a missing username is creatable. ** action=createaccount is changed in a non-backwards-compatible manner. ** Added action=query&meta=authmanagerinfo. ** Added action=clientlogin to be used to log into the main account instead of action=login. ** Added action=linkaccount. ** Added action=unlinkaccount. ** Added action=changeauthenticationdata. ** Added action=removeauthenticationdata. ** Added action=resetpassword.

=== Action API internal changes in 1.27 ===

• ApiQueryORM removed.
• The following classes have been removed: ** ApiFormatDbg ** ApiFormatTxt ** ApiFormatYaml
• ApiBase::addTokenProperties() was removed (deprecated since 1.24).
• ApiBase::getFinalPossibleErrors() was removed (deprecated since 1.24).
• ApiBase::getFinalResultProperties() was removed (deprecated since 1.24).
• ApiBase::getRequireAtLeastOneParameterErrorMessages() was removed (deprecated since 1.24).
• ApiBase::getPossibleErrors() was removed (deprecated since 1.24).
• ApiBase::getRequireMaxOneParameterErrorMessages() was removed (deprecated since 1.24).
• ApiBase::getRequireOnlyOneParameterErrorMessages() was removed (deprecated since 1.24).
• ApiBase::getResultProperties() was removed (deprecated since 1.24).
• ApiBase::getTitleOrPageIdErrorMessage() was removed (deprecated since 1.24).
• ApiBase::parseErrors() was removed (deprecated since 1.24).
• ApiQueryBase::titleToKey(), ApiQueryBase::keyToTitle() and ApiQueryBase::keyPartToTitle() all removed (deprecated since 1.24).
• ApiQueryBase::checkRowCount() was removed (deprecated since 1.24).
• ApiQueryBase::getDirectionDescription() was removed (deprecated since 1.25).
• ApiQuery::getGenerators() was removed (deprecated since 1.21).
• ApiQuery::getModules() was removed (deprecated since 1.21).
• ApiQuery::getModuleType() was removed (deprecated since 1.21).
• ApiQuery::setGeneratorContinue() was removed (deprecated since 1.24).
• ApiMain::getModules() was removed (deprecated since 1.21).
• ApiBase::getVersion() was removed (deprecated since 1.21).
• ApiMain::getShowVersions() was removed (deprecated in 1.21).
• ApiMain::addModule() was removed (deprecated in 1.21).
• ApiMain::addFormat() was removed (deprecated in 1.21).
• ApiMain::getFormats() was removed (deprecated in 1.21).
• ApiPageSet::finishPageSetGeneration() was removed (deprecated in 1.21).
• ApiCreateAccount was removed.

=== Languages updated in 1.27 ===

MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• (T113688) Change default numerals from Gurmukhi to Arabic for Punjabi locale.
• (T116020) Aliases of magic words in MessagesXx.php are sorted by usage.

=== Other changes in 1.27 ===

• Added dependency injection (DI) infrastructure, see docs/injection.txt for details. It is planned to incrementally move MediaWiki code towards using DI, using the service locator (SL) pattern as a stepping stone.
• ProfilerOutputUdp was removed. Note that there is a ProfilerOutputStats class.
• WikiPage::doDeleteArticleReal() and WikiPage::doDeleteArticle() now ignore the 2nd and 3rd arguments (formerly $id and $commit).
• Removed "loaderScripts" option from ResourceLoaderFileModule class.
• Removed ORM-like wrapper added in 1.20.
• LinkCache::getGoodLinks and LinkCache::getBadLinks were removed (deprecated in 1.26).
• WikiPage::doQuickEdit() was removed (deprecated since 1.21).
• Removed SiteObject and SiteArray classes (deprecated in 1.21).
• MessageBlobStore::getInstance() was removed (deprecated since 1.25).
• (T84937) Free external links ("autolinked" urls) will now be terminated by   and HTML entity encodings of &nbsp, <, and >.
• (T36948) The default file revert message's timestamp is now in $wgLocaltimezone, instead of UTC.
• The default name of the 'suppress' group page has been changed from 'Project:Oversight' to 'Project:Suppress'.
• DatabaseBase::resultObject() is now protected (use outside Database classes not necessary since 1.11).
• Calling ResourceLoaderFileModule::readStyleFiles() without a ResourceLoaderContext instance is deprecated.
• ResourceLoader::getLessCompiler() now takes an optional parameter of additional LESS variables to set for the compiler.
• wfBaseConvert() marked as deprecated, use Wikimedia\base_convert() directly instead.
• Obsolete maintenance scripts clearCacheStats.php and showCacheStats.php were removed. The underlying data is sent to StatsD (see $wgStatsdServer).
• Removed msg_resource_links database table and associated code.
• Removed msg_resource database table and associated code.
• Skin::getNamespaceNotice() was removed.
• wfIsConfiguredProxy() was removed (deprecated since 1.24).
• wfDebugTimer() was removed (deprecated since 1.25).
• wfIsTrustedProxy() was removed (deprecated since 1.24).
• wfGetIP() was removed (deprecated since 1.19).
• MWHookException was removed.
• OutputPage::appendSubtitle() was removed (deprecated since 1.19).
• OutputPage::loginToUse() was removed (deprecated since 1.19).
• Article::loadContent() was removed (deprecated since 1.19).
• User::editToken() was removed (deprecated since 1.19).
• Removed --force-normal option of dumpBackup.php, as it no longer served any useful purpose since 1.22.
• The functions processOption() and processArgs() on the BackupDumper and TextPassDumper classes have been removed.
• The maintenance/backupTextPass.inc file was deleted. You should include maintenance/dumpTextPass.php instead.
• WikiPage::getUsedTemplates() was removed (deprecated since 1.19).
• wfEmptyMsg() was removed (deprecated since 1.18).
• OutputPage::permissionRequired() was removed (deprecated since 1.18).
• OutputPage::blockedPage() was removed (deprecated since 1.18).
• User::getSkin() was removed (deprecated since 1.18).
• OutputPage::includeJQuery() was removed (deprecated since 1.17).
• WikiPage::updateRestrictions() was removed (deprecated since 1.19).
• WikiPage::testPreSaveTransform() was removed (deprecated since 1.19).
• LogPage::logName() was removed (deprecated since 1.19).
• LogPage::logHeader() was removed (deprecated since 1.19).
• wfCheckLimits() was removed (deprecated since 1.24).
• Linker::makeKnownLinkObj() was removed (deprecated since 1.16).
• Linker::makeLinkObj() was removed (deprecated since 1.16).
• wfMsgForContentNoTrans() was removed (deprecated since 1.18).
• ChangesList::usePatrol was removed (deprecated since 1.22).
• wfMsgNoTrans() was removed (deprecated since 1.18).
• Linker::makeImageLink2 was removed (deprecated since 1.20).
• Title::userIsWatching() was removed (deprecated since 1.20).
• Removed WaitForSlave maintenance script; use SELECT MASTER_POS_WAIT() database function directly instead.
• wfMsg() was removed (deprecated since 1.18).
• wfMsgForContent() was removed (deprecated since 1.18).
• wfMsgReal() was removed (deprecated since 1.18).
• wfMsgGetKey() was removed (deprecated since 1.18).
• wfMsgHtml() was removed (deprecated since 1.18).
• wfMsgWikiHtml() was removed (deprecated since 1.18).
• wfMsgExt() was removed (deprecated since 1.18).
• Language::armourMath() was removed (deprecated since 1.22).
• LanguageConverter::armourMath() was removed (deprecated since 1.22).
• FakeConverter::armourMath() was removed (deprecated since 1.22).
• The unused jquery.validate ResourceLoader module was removed.
• FileRepo::getRootUrl() was removed (deprecated since 1.20).
• User::generateToken() was removed (deprecated since 1.20).
• WikiPage::getRawText() was removed (deprecated since 1.21).
• ParserOutput::hasCustomDataUpdates() was removed (deprecated since 1.25).
• ParserOutput::addSecondaryDataUpdate() was removed (deprecated since 1.25).
• ParserOutput::getSecondaryDataUpdates() was removed (deprecated since 1.25).
• Gallery images with multiple caption pipes no longer concatenate them all together but instead pick the final one, similar to image syntax.
• XML-like parser tags (such as <gallery>), when unclosed, will be left unparsed rather than consume everything until the end of the page.
• New maintenance script resetUserEmail.php allows sysadmins to reset user emails in case a user forgot password/account was stolen.
• wfCheckEntropy() was removed (deprecated in 1.27).
• Browser support for Internet Explorer 8 lowered from Grade A to Grade C.
• ContentHandler::supportsCategories method added. Default is true. CategoryMembershipChangeJob updates are skipped for content that does not support categories.
• wikidiff difference engine is no longer supported, anyone still using it are encouraged to upgrade to wikidiff2 which is actively maintained and has better package availability.
• Database logic was removed from WatchedItem and a WatchedItemStore was created: ** WatchedItem::IGNORE_USER_RIGHTS and WatchedItem::CHECK_USER_RIGHTS were deprecated. User::IGNORE_USER_RIGHTS and User::CHECK_USER_RIGHTS were introduced. ** WatchedItem::fromUserTitle was deprecated in favour of the constructor. ** WatchedItem::resetNotificationTimestamp was deprecated. ** WatchedItem::batchAddWatch was deprecated. ** WatchedItem::addWatch was deprecated. ** WatchedItem::removeWatch was deprecated. ** WatchedItem::isWatched was deprecated. ** WatchedItem::duplicateEntries was deprecated. ** EmailNotification::updateWatchlistTimestamp was deprecated. ** User::getWatchedItem was removed.
• Unit tests don't work with external PHPUnit anymore, Composer is now the only supported way. Run composer install to install it and other dev dependencies to run unit tests.
• wl_id field added to the watchlist table.
• Revision::getRawText() was removed (deprecated since 1.21).
• WikiPage::replaceSection() was removed (deprecated since 1.21).
• Article::replaceSection() was removed (deprecated since 1.21).
• Language::getLangObj() was removed (deprecated since 1.24).
• Language::getLanguageName() was removed (deprecated since 1.20).
• Language::getLanguageNames() was removed (deprecated since 1.20).
• Language::getTranslatedLanguageNames() was removed (deprecated since 1.20).
• Language::specialPage() was removed (deprecated since 1.24).
• MediaWikiTestCase::assertException() was removed (deprecated since 1.22).
• OutputPage::getHeadItems() was removed (deprecated since 1.24).
• OutputPage::getScript() was removed (deprecated since 1.24).
• OutputPage::out() was removed (deprecated since 1.22).
• OutputPage::setAllowedModules() was removed (deprecated since 1.24).
• UserrightsPage::makeGroupNameListForLog() was removed (deprecated since 1.21).
• MediaWikiSite::newFromGlobalId() was removed (deprecated since 1.21).
• Title::newFromRedirect() was removed (deprecated since 1.21).
• Skin::commonPrintStylesheet() was removed (deprecated since 1.22).
• Skin::getCommonStylePath() was removed (deprecated since 1.24).
• Skin::newFromKey() was removed (deprecated since 1.24).
• Skin::getUsableSkins() was removed (deprecated since 1.23).
• LoadBalancer::pickRandom() was removed (deprecated in 1.21).
• Article::getUndoText() and WikiPage::getUndoText were removed (deprecated since 1.21).
• DifferenceEngine::setText() was removed (deprecated in 1.21).
• Title::newFromRedirectArray() was removed (deprecated in 1.21).
• UserMailer::send() no longer accepts $replyto as the 5th argument and $contentType as the 6th. These must be passed in the options array now.
• Title::newFromRedirectRecurse() was removed (deprecated in 1.21).
• Skin::accesskey was removed (deprecated since 1.21).
• Skin::blockLink was removed (deprecated since 1.21).
• Skin::buildRollbackLink was removed (deprecated since 1.21).
• Skin::emailLink was removed (deprecated since 1.21).
• Skin::formatComment was removed (deprecated since 1.21).
• Skin::formatHiddenCategories was removed (deprecated since 1.21).
• Skin::formatLinksInComment was removed (deprecated since 1.21).
• Skin::formatRevisionSize was removed (deprecated since 1.21).
• Skin::formatSize was removed (deprecated since 1.21).
• Skin::formatTemplates was removed (deprecated since 1.21).
• Skin::generateTOC was removed (deprecated since 1.21).
• Skin::getInternalLinkAttributes was removed (deprecated since 1.21).
• Skin::getInternalLinkAttributesObj was removed (deprecated since 1.21).
• Skin::getInterwikiLinkAttributes was removed (deprecated since 1.21).
• Skin::getInvalidTitleDescription was removed (deprecated since 1.21).
• Skin::getLinkColour was removed (deprecated since 1.21).
• Skin::getRevDeleteLink was removed (deprecated since 1.21).
• Skin::getRollbackEditCount was removed (deprecated since 1.21).
• Skin::makeBrokenImageLinkObj was removed (deprecated since 1.21).
• Skin::makeCommentLink was removed (deprecated since 1.21).
• Skin::makeExternalImage was removed (deprecated since 1.21).
• Skin::makeExternalLink was removed (deprecated since 1.21).
• Skin::makeHeadline was removed (deprecated since 1.21).
• Skin::makeImageLink was removed (deprecated since 1.21).
• Skin::makeMediaLinkFile was removed (deprecated since 1.21).
• Skin::makeMediaLinkObj was removed (deprecated since 1.21).
• Skin::makeSelfLinkObj was removed (deprecated since 1.21).
• Skin::makeThumbLink2 was removed (deprecated since 1.21).
• Skin::makeThumbLinkObj was removed (deprecated since 1.21).
• Skin::normaliseSpecialPage was removed (deprecated since 1.21).
• Skin::normalizeSubpageLink was removed (deprecated since 1.21).
• Skin::processResponsiveImages was removed (deprecated since 1.21).
• Skin::revComment was removed (deprecated since 1.21).
• Skin::revDeleteLink was removed (deprecated since 1.21).
• Skin::revDeleteLinkDisabled was removed (deprecated since 1.21).
• Skin::revUserLink was removed (deprecated since 1.21).
• Skin::revUserTools was removed (deprecated since 1.21).
• Skin::specialLink was removed (deprecated since 1.21).
• Skin::splitTrail was removed (deprecated since 1.21).
• Skin::titleAttrib was removed (deprecated since 1.21).
• Skin::tocIndent was removed (deprecated since 1.21).
• Skin::tocLine was removed (deprecated since 1.21).
• Skin::tocLineEnd was removed (deprecated since 1.21).
• Skin::tocList was removed (deprecated since 1.21).
• Skin::tocUnindent was removed (deprecated since 1.21).
• Skin::tooltip was removed (deprecated since 1.21).
• Skin::tooltipAndAccesskeyAttribs was removed (deprecated since 1.21).
• Skin::userTalkLink was removed (deprecated since 1.21).
• Skin::userToolLinksRedContribs was removed (deprecated since 1.21).
• wikidiff3 is now the default and only PHP diff engine. It provides improved diff performance on complex changes. $wgExternalDiffEngine = 'wikidiff3' therefore makes no difference now. Users are still recommended to use wikidiff2 if possible, though.
• User::addNewUserLogEntry() was deprecated.
• User::addNewUserLogEntryAutoCreate() was deprecated.
• User::isPasswordReminderThrottled() was deprecated.
• Bot-oriented parameters to Special:UserLogin (wpCookieCheck, wpSkipCookieCheck) were removed.
• Installer can now be customized without patching MediaWiki code, see mw-config/overrides/README for details.

=== Compatibility ===

MediaWiki 1.27 requires PHP 5.5.9 or later. There is experimental support for HHVM 3.6.5 or later.

MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but support for them is somewhat less mature. There is experimental support for Oracle and Microsoft SQL Server.

The supported versions are:

• MySQL 5.0.3 or later
• PostgreSQL 8.3 or later
• SQLite 3.3.7 or later
• Oracle 9.0.1 or later
• Microsoft SQL Server 2005 (9.00.1399)

=== Upgrading ===

1.27 has several database changes since 1.26, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site).

If upgrading from before 1.11, and you are using a wiki as a commons repository, make sure that it is updated as well. Otherwise, errors may arise due to database schema changes.

If upgrading from before 1.7, you may want to run refreshLinks.php to ensure new database fields are filled with data.

If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed with MediaWiki 1.21.

Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed upgrade instructions.

For notes on 1.26.x and older releases, see HISTORY.

= MediaWiki 1.26 =

== MediaWiki 1.26.4 ==

This is a maintenance release of the MediaWiki 1.26 branch.

=== Changes since 1.26.3 ===

• BREAKING CHANGE: $wgHTTPProxy is now required for all external requests made by MediaWiki via a proxy. Relying on the http_proxy environment variable is no longer supported.
• (T124163) Fixed fatal error in DifferenceEngine under HHVM.
• (T139565) SECURITY: API: Generate head items in the context of the given title
• (T137264) SECURITY: XSS in unclosed internal links
• (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
• (T133147) SECURITY: Require login to preview user CSS pages
• (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is the top file
• (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in permissions
• (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
• (T115333) SECURITY: Check read permission when loading page content in ApiParse
• Remove support for $wgWellFormedXml = false, all output is now well formed

== MediaWiki 1.26.3 ==

This is a maintenance release of the MediaWiki 1.26 branch.

=== Changes since 1.26.2 ===

• (T116266) Fixed undefined property notices in DairikiDiff under HHVM.
• (T123166) Fix fatal error when importing pages to titles which cannot be created, such as invalid titles or titles the user is not allowed to edit.
• (T122056) Old tokens are remaining valid within a new session
• (T127114) Login throttle can be tricked using non-canonicalized usernames
• (T123653) Cross-domain policy regexp is too narrow
• (T123071) Incorrectly identifying http link in a's href attributes, due to m modifier in regex
• (T129506) MediaWiki:Gadget-popups.js isn't renderable
• (T125283) Users occasionally logged in as different users after SessionManager deployment
• (T103239) Patrol allows click catching and patrolling of any page
• (T122807) [tracking] Check php crypto primatives
• (T98313) Graphs can leak tokens, leading to CSRF
• (T130947) Diff generation should use PoolCounter
• (T133507) Careless use of $wgExternalLinkTarget is insecure
• (T132874) API action=move is not rate limited
• (T110143) strip markers can be used to get around html attribute escaping in (many?) parser tags
• (T116030) Increase pbkdf2 parameter strengths
• (T127420) Pbkdf2Password does not check if hash_pbkdf2() succeeded
• (T126685) Globally throttle password attempts

== MediaWiki 1.26.2 ==

This is a maintenance release of the MediaWiki 1.26 branch.

=== Changes since 1.26.1 ===

• (T121892) Fix fatal error on some Special pages, introduced in 1.26.1.

== MediaWiki 1.26.1 ==

This is a maintenance release of the MediaWiki 1.26 branch.

=== Changes since 1.26.0 ===

• (T117899) SECURITY: $wgArticlePath can no longer be set to relative paths that do not begin with a slash. This enabled trivial XSS attacks. Configuration values such as "http://my.wiki.com/wiki/$1" are fine, as are "/wiki/$1". A value such as "$1" or "wiki/$1" is not and will now throw an error.
• (T119309) SECURITY: Use hash_compare() for edit token comparison
• (T118032) SECURITY: Don't allow cURL to interpret POST parameters starting with '@' as file uploads
• (T115522) SECURITY: Passwords generated by User::randomPassword() can no longer be shorter than $wgMinimalPasswordLength
• (T97897) SECURITY: Improve IP parsing and trimming. Previous behavior could result in improper blocks being issued
• (T109724) SECURITY: Special:MyPage, Special:MyTalk, Special:MyContributions and related pages no longer use HTTP redirects and are now redirected by MediaWiki
• Fixed ConfigException in ExpandTemplates due to AlwaysUseTidy.
• Fixed stray literal \n in Special:Search.
• Fix issue that breaks HHVM Repo Authorative mode.
• (T120267) Work around APCu memory corruption bug

== MediaWiki 1.26.0 ==

=== Configuration changes in 1.26 ===

• $wgPasswordResetRoutes['email'] = true by default.
• $wgEnableParserCache was deprecated, set $wgParserCacheType to CACHE_NONE instead if you want to disable the parser cache.
• New-style continuation is now the default for API action=continue. Clients may use the 'rawcontinue' parameter to receive raw query-continue data, but the new style is encouraged as it's harder to implement incorrectly.
• Deprecated API formats dump and wddx have been completely removed.
• (T7645) The "Signature" button on the edit toolbar is now hidden by default in non-talk namespaces. A new configuration variable, $wgExtraSignatureNamespaces, controls in which subject (non-talk) namespaces the "Signature" button on the edit toolbar will be displayed.
• $wgResourceLoaderUseESI was deprecated and removed. This was an experimental feature that was never enabled by default.
• $wgResourceLoaderExperimentalAsyncLoading was deprecated and removed. This experimental feature was never enabled by default and is obsolete as of MediaWiki 1.26, in where ResourceLoader became fully asynchronous.
• $wgMasterWaitTimeout was removed (deprecated in 1.24).
• Fields in ParserOptions are now private. Use the accessors instead.
• Custom LESS functions (defined via $wgResourceLoaderLESSFunctions or in extension.json) have been removed, after being deprecated in 1.24.
• $wgAlwaysUseTidy has been removed.
• ResetSessionID hook has been removed. Nothing seems to use it.
• Certain AuthPlugin methods are deprecated in favor of new hooks: ** AuthPlugin::initUser() is replaced by LocalUserCreated. ** AuthPlugin::updateUser() is replaced by UserLoggedIn. ** AuthPlugin::updateExternalDB() is replaced by the existing UserSaveSettings. ** AuthPlugin::updateExternalDBGroups() is replaced by UserGroupsChanged. ** AuthPluginUser::isHidden() is replaced by UserIsHidden. ** AuthPluginUser::isLocked() is replaced by UserIsLocked.
• The UserRights hook is deprecated in favor of the new UserGroupsChanged hook.
• AuthPlugin::initUser() and AuthPlugin::updateUser() should no longer replace the passed User object.
• $wgBlockAllowsUTEdit is now set to true by default. This allows blocked users to edit their talk pages unless explicitly disabled when they are being blocked.

=== New features in 1.26 ===

• (T51506) Now action=info gives estimates of actual watchers for a page. See $wgRCMaxAge, $wgWatchersMaxAge and $wgUnwatchedPageSecret to learn how to configure if needed.
• Change tags can now be hidden in the interface by disabling the associated "tag-<id>" interface message.
• ':' (colon) is now invalid in usernames for new accounts. Existing accounts are not affected.
• Added a new hook, 'LogException', to log exceptions in nonstandard ways.
• Revive the 'SpecialSearchResultsAppend' hook which occurs after the list of search results are rendered. The initial use case is to append a "give us feedback" link beneath the search results.
• Added a new hook, 'RejectParserCacheValue', which allows extensions to reject an otherwise-successful parser cache lookup. The intent is to allow extensions to manage the eviction of archaic HTML output from the cache.
• (T68699) The expiration of the UserID and Token login cookies ($wgExtendedLoginCookieExpiration) can be configured independently of the expiration of all other cookies ($wgCookieExpiration).
• (T50519) Support for generating JPEG/PNG thumbnails from WebP images added if ImageMagick is used as image scaler ($wgUseImageMagick = true). Uploading of WebP images still disabled by default. Add $wgFileExtensions[] = 'webp'; to LocalSettings.php to enable uploading of WebP images.
• Added new hooks 'EnhancedChangesListModifyLineData' & 'EnhancedChangesListModifyBlockLineData', to modify the data used to build lines in enhanced recentchanges and watchlist.
• Caches that need purging ability now use the WANObjectCache interface. This corresponds to a new $wgMainWANCache setting, which defaults to using the $wgMainCacheType settings.
• Callers needing fast light-weight data stores use $wgMainStash to select the store type from $wgObjectCaches. The default is the local database.
• Interface message overrides in the MediaWiki namespace will now be cached in memcached and APC (if available), rather than memcached and local files.
• Added a new hook, 'RandomPageQuery', to allow modification of the query used by Special:Random to select random pages.
• $wgTransactionalTimeLimit was added, which controls the request time limit for potentially slow POST requests that need to be as atomic as possible.
• ResourceLoader now loads all scripts asynchronously. The top-queue and startup modules are no longer synchronously loaded.
• 'mediawiki.ui.button' styles are no longer unconditionally loaded on every page. During the deprecation period, the styles will only be loaded on pages which contain 'mw-ui-button' in their HTML. Starting in 1.28, the styles will only be loaded if explicitly required.
• If search returns zero results and current search engine has a "did you mean" suggestion, results for suggestion will be shown. Can be disabled by setting $wgSearchRunSuggestedQuery to false.
• Added several JavaScript libraries for uploading files to MediaWiki from the client-side. See documentation for mw.Upload and its subclasses for more information.
• Added OOUI dialogs and layout for file upload interfaces. See documentation for mw.Upload.Dialog, mw.Upload.BookletLayout and its subclasses for more information.

=== extension.json changes in 1.26 ===

• (T99344) The extension.json schema is now versioned. All extensions and skins should set a "manifest_version" property corresponding to the schema version they were written for. The only supported version currently is "1".
• (T102523) The error message if a non-array attribute is set was improved.
• (T107646) Configuration settings can now specify how they should be merged, which is necessary for arrays using integer keys.
• (T110389) Adding namespaces through extension.json now actually works
• $wgNamespaceProtection can now be set in extension.json.
• $wgCapitalLinkOverrides can now be set in extension.json.
• (T97186) Extensions using a custom prefix for their configuration settings can now set a "_prefix" key to override the default of "wg".
• (T99084) Extensions can now specify what MediaWiki core versions they depend upon.
• (T105236) The extension.json schema now validates custom classes in the "ResourceModules" property properly.

=== External library changes in 1.26 === ==== Upgraded external libraries ====

• Updated es5-shim from v4.0.0 to v4.1.5.
• Updated json2 from revision 2014-02-04 to 2015-05-03.
• Updated Sinon.JS from 1.10.3 to 1.15.4.
• Updated jQuery Client from v1.0.0 to v2.0.0.
• Updated QUnit from v1.17.1 to v1.18.0.
• Updated liuggio/statsd-php-client from v1.0.12 to v1.0.16.
• Updated oojs/oojs-ui from v0.11.3 to v0.12.12.
• Updated wikimedia/cdb from v1.0.1 to v1.3.0.
• Updated wikimedia/utfnormal from v1.0.2 to v1.0.3.
• Updated wikimedia/composer-merge-plugin from v1.0.0 to v1.3.0.
• Updated zordius/lightncandy from v0.18 to v0.21.

==== New external libraries ====

• Added composer/semver v1.0.0.
• Added mediawiki/at-ease v1.1.0.
• Added wikimedia/assert v0.2.2.
• Added wikimedia/ip-set v1.0.1.
• Added wikimedia/wrappedstring v2.0.0.

==== Removed and replaced external libraries ====

• Replaced leafo/lessphp v0.5.0 with oyejorge/less.php v1.7.0.9.

=== Bug fixes in 1.26 ===

• (T53283) load.php sometimes sends 304 response without full headers
• (T65198) Talk page tabs now have a "rel=discussion" attribute
• (T98841) {{msgnw:}} now preserves comments even when subst: is not used.
• (T104142) $wgEmergencyContact and $wgPasswordSender now use their default value if set to an empty string.

=== Action API changes in 1.26 ===

• New-style continuation is now the default for action=continue. Clients may use the 'rawcontinue' parameter to receive raw query-continue data, but the new style is encouraged as it's harder to implement incorrectly.
• Deprecated API formats dump and wddx have been completely removed.
• API action=query&list=tags: The displayname can now be boolean false if the tag is meant to be hidden from user interfaces.
• action=import no longer allows both the namespace= and rootpage= parameters to be set. If they are both set, the value of rootpage= will be ignored.
• prop=revision output in enum mode is now sorted by timestamp rather than revision ID. This usually won't make any difference.
• (T102645) Namespace list from meta=siteinfo&siprop=namespaces is now an array with formatversion=2.
• Various other output from meta=siteinfo will now always be arrays instead of sometimes being numerically-indexed objects with formatversion=2.
• When errors about users being blocked are returned, they now include information about the relevant block.
• (T99926) list=random has higher limits, in line with other API modules.
• list=random's rnredirect parameter is deprecated in favor of a new rnfilterredir parameter that also allows for listing both redirects and non-redirects.
• list=random now supports continuation.
• API responses to GET requests may now include ETag and Last-Modified headers, and will honor corresponding If-None-Match and If-Modified-Since on such requests.

=== Action API internal changes in 1.26 ===

• New metadata item ApiResult::META_KVP_MERGE to allow for merging the KVP key into the value when the value is an assoc.
• API action modules may now provide values for the RFC 7232 ETag and Last-Modified headers. The API will check these against If-None-Match and If-Modified-Since request headers on GET requests and avoid executing the module when appropriate.

=== Languages updated in 1.26 ===

MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

• Languages added: ** ase (American sign language), thanks to translator Icemandeaf ** dty (डोटेली/Doteli), thanks to translators जनक राज भट्ट, बिप्लब आनन्द, मेश सिंह बोहरा, and राम प्रसाद जोशी ** luz (لئری دوٙمینی / Southern Luri) ** olo (Livvinкarjala / Livvi-Karelian), thanks to translators Denö, Hiloin Natoi, Ilja.mos, and Mashoi7

=== Other changes in 1.26 ===

• ChangeTags::tagDescription() will return false if the interface message for the tag is disabled.
• Added PageHistoryPager::doBatchLookups hook.
• Added $wikiId parameter to FormatAutocomments hook.
• Added ParserCacheSaveComplete to ParserCache
• supportsDirectEditing and supportsDirectApiEditing methods added to ContentHandler, to provide a way for ApiEditPage and EditPage to check if direct editing of content is allowed. These methods return false, by default for the ContentHandler base class and true for TextContentHandler and it's derivative classes (everything in core). For Content types that do not support direct editing, an alternative mechanism should be provided for editing, such as action overrides or specific api modules.
• mediaWiki.confirmCloseWindow now returns an object of functions, instead of one function. The callback can't be called directly any more. The callback function is replaced with confirmCloseWindow.release().
• BREAKING CHANGE: Added an optional ResouceLoaderContext parameter to ResourceLoaderModule::getDependencies(). Extension classes that override that method should be updated. If they aren't updated, PHP Strict standards warnings will appear when E_STRICT error reporting is enabled. Note: in the near future, this parameter will probably become non-optional.
• Removed maintenance script deleteImageMemcached.php.
• MWFunction::newObj() was removed (deprecated in 1.25). ObjectFactory::getObjectFromSpec() should be used instead.
• The parser will no longer randomize the string it uses to mark the place of items that were stripped during parsing. It will use a fixed string instead. This causes the parser to re-use the regular expressions it uses to search and replace markers rather than generate novel expressions on each parse. Re-using regular expressions will improve performance on HHVM and the forthcoming PHP 7. The interfaces changes accompanying this change are:
  • Parser::getRandomString() and Parser::uniqPrefix() have been deprecated.
  • The $uniq_prefix argument for Parser::extractTagsAndParams() and the $prefix argument for StripState::_construct() are deprecated and their value is ignored.
• wfSuppressWarnings() and wfRestoreWarnings() were split into a separate library, mediawiki/at-ease, and are now deprecated. Callers should use MediaWiki\suppressWarnings() and MediaWiki\restoreWarnings() directly.
• The Block class constructor now takes an associative array of parameters instead of many optional positional arguments. Calling the constructor the old way will issue a deprecation warning.
• The jquery.mwExtension module was deprecated.
• $wgSpecialPageGroups was removed (deprecated in 1.21).
• SpecialPageFactory::setGroup was removed (deprecated in 1.21).
• SpecialPageFactory::getGroup was removed (deprecated in 1.21).
• DatabaseBase::ignoreErrors() is now protected.
• BREAKING CHANGE: mediawiki.legacy.ajax has been removed, following a lengthy deprecation period.
• The ScopedPHPTimeout class was removed.
• Removed maintenance script fixSlaveDesync.php.
• Watchlist tokens, SpecialResetTokens, and User::getTokenFromOption() are deprecated. Applications using those can work via the OAuth extension instead. New tokens types should not be added.
• DatabaseBase::errorCount() was removed (unused).
• $wgDeferredUpdateList was removed.
• DeferredUpdates::addHTMLCacheUpdate() was removed.

= MediaWiki 1.25 =

== MediaWiki 1.25.6 ==

This is a maintenance release of the MediaWiki 1.25 branch.

=== Changes since 1.25.5 ===

• (T123166) Fix fatal error when importing pages to titles which cannot be created, such as invalid titles or titles the user is not allowed to edit.
• (T122056) Old tokens are remaining valid within a new session
• (T127114) Login throttle can be tricked using non-canonicalized usernames
• (T123653) Cross-domain policy regexp is too narrow
• (T123071) Incorrectly identifying http link in a's href attributes, due to m modifier in regex
• (T129506) MediaWiki:Gadget-popups.js isn't renderable
• (T125283) Users occasionally logged in as different users after SessionManager deployment
• (T103239) Patrol allows click catching and patrolling of any page
• (T122807) [tracking] Check php crypto primatives
• (T98313) Graphs can leak tokens, leading to CSRF
• (T130947) Diff generation should use PoolCounter
• (T133507) Careless use of $wgExternalLinkTarget is insecure
• (T132874) API action=move is not rate limited
• (T110143) strip markers can be used to get around html attribute escaping in (many?) parser tags
• (T116030) Increase pbkdf2 parameter strengths
• (T127420) Pbkdf2Password does not check if hash_pbkdf2() succeeded
• (T126685) Globally throttle password attempts

== MediaWiki 1.25.5 ==

This is a maintenance release of the MediaWiki 1.25 branch.

=== Changes since 1.25.4 ===

• (T121892) Fix fatal error on some Special pages, introduced in 1.25.4.

== MediaWiki 1.25.4 ==

This is a security and maintenance release of the MediaWiki 1.25 branch.

=== Changes since 1.25.3 ===

• (T117899) SECURITY: $wgArticlePath can no longer be set to relative paths that do not begin with a slash. This enabled trivial XSS attacks. Configuration values such as "http://my.wiki.com/wiki/$1" are fine, as are "/wiki/$1". A value such as "$1" or "wiki/$1" is not and will now throw an error.
• (T119309) SECURITY: Use hash_compare() for edit token comparison
• (T118032) SECURITY: Don't allow cURL to interpret POST parameters starting with '@' as file uploads
• (T115522) SECURITY: Passwords generated by User::randomPassword() can no longer be shorter than $wgMinimalPasswordLength
• (T97897) SECURITY: Improve IP parsing and trimming. Previous behavior could result in improper blocks being issued
• (T109724) SECURITY: Special:MyPage, Special:MyTalk, Special:MyContributions and related pages no longer use HTTP redirects and are now redirected by MediaWiki
• (T103237) $wgUseGzip had no effect when using file cache.
• (T114606) mw.notify was not correctly fixed to the page if initialized while not at the top of the page.
• Fix issue that breaks HHVM Repo Authorative mode.

== MediaWiki 1.25.3 ==

This is a security and maintenance release of the MediaWiki 1.25 branch.

=== Changes since 1.25.2 ===

• (T98975) Fix having multiple callbacks for a single hook.
• (T107632) maintenance/refreshLinks.php did not always remove all links pointing to nonexistent pages.
• (T104142) $wgEmergencyContact and $wgPasswordSender now use their default value if set to an empty string.
• (T62174) Provide fallbacks for use of mb_convert_encoding() in HtmlFormatter. It was causing an error when accessing the api help page if the mbstring PHP extension was not installed.
• (T105896) Confirmation emails would sometimes contain invalid codes.
• (T105597) Fixed edit stash inclusion queries.
• (T91850) SECURITY: Add throttle check in ApiUpload and SpecialUpload
• (T91203, T91205) SECURITY: API: Improve validation in chunked uploading
• (T95589) SECURITY: RevDel: Check all revisions for suppression, not just the first
• (T108616) SECURITY: Avoid exposure of local path in PNG thumbnails

== MediaWiki 1.25.2 ==

This is a security and maintenance release of the MediaWiki 1.25 branch.

=== Changes since 1.25.1 ===

• (T94116) SECURITY: Compare API watchlist token in constant time
• (T97391) SECURITY: Escape error message strings in thumb.php
• (T106893) SECURITY: Don't leak autoblocked IP addresses on Special:DeletedContributions
• (T102562) Fix InstantCommons parameters to handle the new HTTPS-only policy of Wikimedia Commons.
• (T100767) Setting a configuration setting for skin or extension to false in LocalSettings.php was not working.
• (T100635) API action=opensearch json output no longer breaks when $wgDebugToolbar is enabled.
• (T102522) Using an extension.json or skin.json file which has a "manifest_version" property for 1.26 compatability will no longer trigger warnings.
• (T86156) Running updateSearchIndex.php will not throw an error as page_restrictions has been added to the locked table list.
• Special:Version would throw notices if using SVN due to an incorrectly named variable. Add an additional check that an index is defined.

== MediaWiki 1.25.1 ==

This is a bug fix release of the MediaWiki 1.25 branch.

=== Changes since 1.25 ===

• (T100351) Fix syntax errors in extension.json of ConfirmEdit extension

== MediaWiki 1.25.0 ==

=== Configuration changes in 1.25 ===

• $wgPageShowWatchingUsers was removed.
• $wgLocalVirtualHosts has been added to replace $wgConf->localVHosts.
• $wgAntiLockFlags was removed.
• $wgJavaScriptTestConfig was removed.
• Edit tokens returned from User::getEditToken may change on every call. Token validity must be checked by passing the user-supplied token to User::matchEditToken rather than by testing for equality with a newly-generated token.
• (T74951) The UserGetLanguageObject hook may be passed any IContextSource for its $context parameter. Formerly it was documented as receiving a RequestContext specifically.
• Profiling was restructured and $wgProfiler now requires an 'output' parameter. See StartProfiler.sample for details.
• $wgMangleFlashPolicy was added to make MediaWiki's mangling of anything that might be a flash policy directive configurable.
• ApiOpenSearch now supports XML output. The OpenSearchXml extension should no longer be used. If extracts and page images are desired, the TextExtracts and PageImages extensions are required.
• $wgOpenSearchTemplate is deprecated in favor of $wgOpenSearchTemplates.
• Edits are now prepared via AJAX as users type edit summaries. This behavior can be disabled via $wgAjaxEditStash.
• (T46740) The temporary option $wgIncludejQueryMigrate was removed, along with the jQuery Migrate library, as indicated when this option was provided in MediaWiki 1.24.
• ProfilerStandard and ProfilerSimpleTrace were removed. Make sure that any StartProfiler.php config is updated to reflect this. Xhprof is available for zend/hhvm. Also, for hhvm, one can consider using its xenon profiler.
• Default value of $wgSVGConverters['rsvg'] now uses the 'rsvg-convert' binary rather than 'rsvg'.
• Default value of $wgSVGConverters['ImageMagick'] now uses transparent background with white fallback color, rather than just white background.
• MediaWikiBagOStuff class removed, make sure any object cache config uses SqlBagOStuff instead.
• The 'daemonized' flag must be set to true in $wgJobTypeConf for any redis job queues. This means that mediawiki/services/jobrunner service has to be installed and running for any such queues to work.
• $wgAutopromoteOnce no longer supports the 'view' event. For keeping some compatibility, any 'view' event triggers will still trigger on 'edit'.
• $wgExtensionDirectory was added for when your extensions directory is somewhere other than $IP/extensions (as $wgStyleDirectory does with the skins directory).

=== New features in 1.25 ===

• (T64861) Updated plural rules to CLDR 26. Includes incompatible changes for plural forms in Russian, Prussian, Tagalog, Manx and several languages that fall back to Russian.
• (T60139) ResourceLoaderFileModule now supports language fallback for 'languageScripts'.
• Added a new hook, "ContentAlterParserOutput", to allow extensions to modify the parser output for a content object before links update.
• (T37785) Enhanced recent changes and extended watchlist are now default. Documentation: https://meta.wikimedia.org/wiki/Help:Enhanced_recent_changes and https://www.mediawiki.org/wiki/Manual:$wgDefaultUserOptions
• (T69341) SVG images will no longer be base64-encoded when being embedded in CSS. This results in slight size increase before gzip compression (due to percent-encoding), but up to 20% decrease after it.
• Update jStorage to v0.4.12.
• MediaWiki now natively supports page status indicators: icons (or short text snippets) usually displayed in the top-right corner of the page. They have been in use on Wikipedia for a long time, implemented using templates and CSS absolute positioning.
  • Basic wikitext syntax: <indicator name="foo">[[File:Foo.svg|20px]]</indicator>
  • Usage instructions: https://www.mediawiki.org/wiki/Help:Page_status_indicators
  • Adjusting custom skins to support indicators: https://www.mediawiki.org/wiki/Manual:Skinning#Page_status_indicators
• Edit tokens may now be time-limited: passing a maximum age to User::matchEditToken will reject any older tokens.
• The debug logging internals have been overhauled, and are now using the PSR-3 interfaces.
• Update CSSJanus to v1.1.1.
• Update lessphp to v0.5.0.
• Added a hook, "ApiOpenSearchSuggest", to allow extensions to provide extracts and images for ApiOpenSearch output. The semantics are identical to the "OpenSearchXml" hook provided by the OpenSearchXml extension.
• PrefixSearchBackend hook now has an $offset parameter. Combined with $limit, this allows for pagination of prefix results. Extensions using this hook should implement supporting behavior. Not doing so can result in undefined behavior from API clients trying to continue through prefix results.
• Update jQuery from v1.11.1 to v1.11.3.
• External libraries installed via composer will now be displayed on Special:Version in their own section. Extensions or skins that are installed via composer will not be shown in this section as it is assumed they will add the proper credits to the skins or extensions section. They can also be accessed through the API via the new siprop=libraries to ApiQuerySiteinfo.
• Update QUnit from v1.14.0 to v1.16.0.
• Update Moment.js from v2.8.3 to v2.8.4.
• Special:Tags now allows for manipulating the list of user-modifiable change tags.
• Added 'managetags' user right and 'ChangeTagCanCreate', 'ChangeTagCanDelete', and 'ChangeTagCanCreate' hooks to allow for managing user-modifiable change tags.
• Added 'ChangeTagsListActive' hook, to separate the concepts of "defined" and "active" formerly conflated by the 'ListDefinedTags' hook.
• Added TemplateParser class that provides a server-side interface to cachable dynamically-compiled Mustache templates (currently uses lightncandy library).
• Clickable anchors for each section heading in the content are now generated and appear in the gutter on hovering over the heading.
• Added 'CategoryViewer::doCategoryQuery' and 'CategoryViewer::generateLink' hooks to allow extensions to override how links to pages are rendered within NS_CATEGORY
• (T19665) Special:WantedPages only lists page which having at least one red link pointing to it.
• New hooks 'ApiMain::moduleManager' and 'ApiQuery::moduleManager', can be used for conditional registration of API modules.
• New hook 'EnhancedChangesList::getLogText' to alter, remove or add to the links of a group of changes in EnhancedChangesList.
• A full interface for StatsD metric reporting has been added to the context interface, reachable via IContextSource::getStats().
• Move the jQuery Client library from being mastered in MediaWiki as v0.1.0 to a proper, published library, which is now tagged as v1.0.0.
• A new message (defaulting to blank), 'editnotice-notext', can be shown to users when they are editing if no edit notices apply to the page being edited.
• (T94536) You can now make the sitenotice appear to logged-in users only by editing MediaWiki:Anonnotice and replacing its content with "". Setting it to "-" (default) will continue disable it and fallback to MediaWiki:Sitenotice.
• Modifying the tagging of a revision or log entry is now available via Special:EditTags, generally accessed via the revision-deletion-like interface on history pages and Special:Log is likely to be more useful.
• Added 'applychangetags' and 'changetags' user rights.
• (T35235) LogFormatter subclasses are now responsible for formatting the parameters for API log event output. Extensions should implement the new getParametersForApi() method in their log formatters.

==== External libraries ====

• MediaWiki now requires certain external libraries to be installed. In the past these were bundled inside the Git repository of MediaWiki core, but now they need to be installed separately. For users using the tarball, this will be taken care of and no action will be required. Users using Git will either need to use composer to fetch dependencies or use the mediawiki/vendor repository which includes all dependencies for MediaWiki core and ones used in Wikimedia deployment. Detailed instructions can be found at: https://www.mediawiki.org/wiki/Download_from_Git#Fetch_external_libraries
• The following libraries are now required: ** psr/log This library provides the interfaces set by the PSR-3 standard (http://www.php-fig.org/psr/psr-3/) which are used by MediaWiki internally via the MediaWiki\Logger\LoggerFactory class. See the structured logging RfC https://www.mediawiki.org/wiki/Requests_for_comment/Structured_logging for more background information. ** cssjanus/cssjanus This library was formerly bundled with MediaWiki core and has been removed. It automatically flips CSS for RTL support. ** leafo/lessphp This library was formerly bundled with MediaWiki core and has been removed. It compiles LESS files into CSS. ** wikimedia/cdb This library was formerly a part of MediaWiki core, and has been moved into a separate library. It provides CDB functions which are used in the Interwiki and Localization caches. More information about the library can be found at https://www.mediawiki.org/wiki/CDB. ** liuggio/statsd-php-client This library provides a StatsD client API for logging application metrics to a remote server.

=== Bug fixes in 1.25 ===

• (T73003) No additional code will be generated to try to load CSS-embedded SVG images in Internet Explorer 6 and 7, as they don't support them anyway.
• (T69021) On Special:BookSources, corrected validation of ISBNs (both 10- and 13-digit forms) containing "X".
• Page moving was refactored into a MovePage class. As part of that: ** The AbortMove hook was removed. ** MovePageIsValidMove is for extensions to specify whether a page cannot be moved for technical reasons, and should not be overridden. ** MovePageCheckPermissions is for checking whether the given user is allowed to make the move. ** Title::moveNoAuth() was deprecated. Use the MovePage class instead. ** Title::moveTo() was deprecated. Use the MovePage class instead. ** Title::isValidMoveOperation() broken down into MovePage::isValidMove() and MovePage::checkPermissions().
• (T18530) Multiple autocomments are now formatted in an edit summary.
• (T70361) Autocomments containing "/*" are parsed correctly.
• The Special:WhatLinksHere page linked from 'Number of redirects to this page' on action=info about a file page does not list file links anymore.
• (T78637) Search bar is not autofocused unless it is empty so that proper scrolling using arrow keys is possible.
• (T50853) Database::makeList() modified to handle 'NULL' separately when building IN clause
• (T85192) Captcha position modified in Usercreate template. As a result: ** extrafields parameter added to Usercreate.php to insert additional data ** 'extend' method added to QuickTemplate to append additional values to any field of data array
• (T86974) Several Title methods now load from the database when necessary (instead of returning incorrect results) even when the page ID is known.
• (T74070) Duplicate search for archived files on file upload now omits the extension. This requires the fa_sha1 field being populated.
• Removed rel="archives" from the "View history" link, as it did not pass HTML validation.
• $wgUseTidy is now set when parserTests are run with the tidy option to match output on wiki.
• (T37472) update.php will purge ResourceLoader cache unless --nopurge is passed to it.
• (T72109) mediawiki.language should respect $wgTranslateNumerals in convertNumber().

=== Action API changes in 1.25 ===

• (T67403) XML tag highlighting is now only performed for formats "xmlfm" and "wddxfm".
• action=paraminfo supports generalized submodules (modules=query+value), querymodules and formatmodules are deprecated
• action=paraminfo no longer outputs descriptions and other help text by default. If needed, it may be requested using the new 'helpformat' parameter.
• action=help has been completely rewritten, and outputs help in HTML rather than plain text.
• Hitting api.php without specifying an action now displays only the help for the main module, with links to submodule help.
• API help is no longer displayed on errors.
• 'uselang' is now a recognized API parameter; "uselang=user" may be used to explicitly select the language from the current user's preferences, and "uselang=content" may be used to select the wiki's content language.
• Default output format for the API is now jsonfm.
• Simplified continuation will return a "batchcomplete" property in the result when a batch of pages is complete.
• Pretty-printed HTML output now has nicer formatting and (if available) better syntax highlighting.
• Deprecated list=deletedrevs in favor of newly-added prop=deletedrevisions and list=alldeletedrevisions.
• prop=revisions will gracefully continue when given too many revids or titles, rather than just ignoring the extras.
• prop=revisions will no longer die if rvcontentformat doesn't match a revision's content model; it will instead warn and omit the content.
• If the user has the 'deletedhistory' right, action=query's revids parameter will now recognize deleted revids.
• prop=revisions may be used as a generator, generating revids.
• (T68776) format=json results will no longer be corrupted when $wgMangleFlashPolicy is in effect. format=php results will cleanly return an error instead of returning invalid serialized data.
• Generators may now return data for the generated pages when used with action=query.
• Query page data for generator=search and generator=prefixsearch will now include an "index" field, which may be used by the client for sorting the search results.
• ApiOpenSearch now supports XML output.
• ApiOpenSearch will now output descriptions and URLs as array indexes 2 and 3 in JSON format.
• (T76051) list=tags will now continue correctly.
• (T76052) list=tags can now indicate whether a tag is defined.
• (T75522) list=prefixsearch now supports continuation
• (T78737) action=expandtemplates can now return page properties.
• (T78690) list=allimages now accepts multiple pipe-separated values for the 'aimime' parameter.
• prop=info with inprop=protections will now return applicable protection types with the 'restrictiontypes' key.
• (T85417) When resolving redirects, ApiPageSet will now add the targets of interwiki redirects to the list of interwiki titles.
• (T85417) When outputting the list of redirect titles, a 'tointerwiki' property (like the existing 'tofragment' property) will be set.
• Added action=managetags to allow for managing the list of user-modifiable change tags. Actually modifying the tagging of a revision or log entry is not implemented yet.
• list=tags has additional properties to indicate 'active' status and tag sources.
• siprop=libraries was added to ApiQuerySiteinfo to list installed external libraries.
• (T88010) Added action=checktoken, to test a CSRF token's validity.
• (T88010) Added intestactions to prop=info, to allow querying of Title::userCan() via the API.
• Default type param for query list=watchlist and list=recentchanges has been changed from all types (e.g. including 'external') to 'edit|new|log'.
• Added formatversion to format=json. Still "experimental" as further changes to the output formatting might still be made.
• (T73020) Log event details are now always under a 'params' subkey for list=logevents, and a 'logparams' subkey for list=watchlist and list=recentchanges.
• Log event details are changing formatting:
  • block events now report flags as an array rather than as a comma-separated list.
  • patrol events now report the 'auto' flag as a boolean (absent/empty string for BC formats) rather than as an integer.
  • rights events now report the old and new group lists as arrays rather than as comma-separated lists.
  • merge events use new-style formatting.
  • delete/event and delete/revision events use new-style formatting.
• The root node and various other nodes will now always be an object in formats such as json that distinguish between arrays and objects.
  • Except for action=opensearch where the spec requires an array.

=== Action API internal changes in 1.25 ===

• ApiHelp has been rewritten to support i18n and paginated HTML output. Most existing modules should continue working without changes, but should do the following:
  • Add an i18n message "apihelp-{$moduleName}-description" to replace getDescription().
  • Add i18n messages "apihelp-{$moduleName}-param-{$param}" for each parameter to replace getParamDescription(). If necessary, the settings array returned by getParams() can use the new ApiBase::PARAM_HELP_MSG key to override the message.
  • Implement getExamplesMessages() to replace getExamples().
• Modules with submodules (like action=query) must have their submodules override ApiBase::getParent() to return the correct parent object.
• The 'APIGetDescription' and 'APIGetParamDescription' hooks are deprecated, and will have no effect for modules using i18n messages. Use 'APIGetDescriptionMessages' and 'APIGetParamDescriptionMessages' instead.
• Api formatters will no longer be asked to display the help screen on errors.
• ApiMain::getCredits() was removed. The credits are available in the 'api-credits' i18n message.
• ApiFormatBase has been changed to support i18n and syntax highlighting via extensions with the new 'ApiFormatHighlight' hook. Core syntax highlighting has been removed.
• ApiFormatBase now always buffers. Output is done when ApiFormatBase::closePrinter is called.
• Much of the logic in ApiQueryRevisions has been split into ApiQueryRevisionsBase.
• The 'revids' parameter supplied by ApiPageSet will now count deleted revisions as "good" if the user has the 'deletedhistory' right. New methods ApiPageSet::getLiveRevisionIDs() and ApiPageSet::getDeletedRevisionIDs() are provided to access just the live or just the deleted revids.
• Added ApiPageSet::setGeneratorData() and ApiPageSet::populateGeneratorData() to allow generators to include data in the action=query result.
• New hooks 'ApiMain::moduleManager' and 'ApiQuery::moduleManager', can be used for conditional registration of API modules.
• Added ApiBase::lacksSameOriginSecurity() to allow modules to easily check if the current request was sent with the 'callback' parameter (or any future method that breaks the same-origin policy).
• Profiling methods in ApiBase are deprecated and no longer need to be called.
• ApiResult was greatly overhauled. See inline documentation for details.
• ApiResult will automatically convert objects to strings or arrays (depending on whether a __toString() method exists on the object), and will refuse to add unsupported value types.
  • An informal interface, ApiSerializable, exists to override the default object conversion.
• ApiResult/ApiFormatBase "raw mode" is deprecated.
• ApiFormatXml now assumes defaults and so on instead of throwing errors when metadata isn't set.
• (T35235) LogFormatter subclasses are now responsible for formatting log event parameters for the API.
• Many modules have changed result data formats. While this shouldn't affect clients not using the experimental formatversion=2, code using ApiResult::getResultData() without the transformations for backwards compatibility may need updating, as will code that wasn't following the old conventions for API boolean output.
• The following methods have been deprecated and may be removed in a future release:
  • ApiBase::getDescription
  • ApiBase::getParamDescription
  • ApiBase::getExamples
  • ApiBase::makeHelpMsg
  • ApiBase::makeHelpArrayToString
  • ApiBase::makeHelpMsgParameters
  • ApiBase::getModuleProfileName
  • ApiBase::profileIn
  • ApiBase::profileOut
  • ApiBase::safeProfileOut
  • ApiBase::getProfileTime
  • ApiBase::profileDBIn
  • ApiBase::profileDBOut
  • ApiBase::getProfileDBTime
  • ApiBase::getResultData
  • ApiFormatBase::setUnescapeAmps
  • ApiFormatBase::getWantsHelp
  • ApiFormatBase::setHelp
  • ApiFormatBase::formatHTML
  • ApiFormatBase::setBufferResult
  • ApiFormatBase::getDescription
  • ApiFormatBase::getNeedsRawData
  • ApiMain::setHelp
  • ApiMain::reallyMakeHelpMsg
  • ApiMain::makeHelpMsgHeader
  • ApiResult::setRawMode
  • ApiResult::getIsRawMode
  • ApiResult::getData
  • ApiResult::setElement
  • ApiResult::setContent
  • ApiResult::setIndexedTagName_recursive
  • ApiResult::setIndexedTagName_internal
  • ApiResult::setParsedLimit
  • ApiResult::beginContinuation
  • ApiResult::setContinueParam
  • ApiResult::setGeneratorContinueParam
  • ApiResult::endContinuation
  • ApiResult::size
  • ApiResult::convertStatusToArray
  • ApiQueryImageInfo::getPropertyDescriptions
  • ApiQueryLogEvents::addLogParams
• The following classes have been deprecated and may be removed in a future release:
  • ApiQueryDeletedrevs

=== Languages updated in 1.25 ===

MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Bugzilla reports.

• Languages added: ** awa (अवधी / Awadhi), thanks to translator 1AnuraagPandey; ** bgn (بلوچی رخشانی / Western Balochi), thanks to translators Baloch Afghanistan, Ibrahim khashrowdi and Rachitrali; ** ses (Koyraboro Senni), thanks to translator Songhay.
• (T66440) Kazakh (kk) wikis should no longer forcefully reset the user's interface language to kk where unexpected.
• The Chinese conversion table was substantially updated to fix a lot of bugs and ensure better reading experience for different variants.

=== Other changes in 1.25 ===

• (T45591) Links to MediaWiki.org translatable help were added to indicators, mostly in special pages. Local custom target titles can be placed in the relevant '(namespace-X|action name|special page name)-helppage' system message. Extensions can use the addHelpLink() function to do the same.

• The skin autodiscovery mechanism, deprecated in MediaWiki 1.23, has been removed. See https://www.mediawiki.org/wiki/Manual:Skin_autodiscovery for migration guide for creators and users of custom skins that relied on it.

• Javascript variables 'wgFileCanRotate' and 'wgFileExtensions' now only available on Special:Upload.

• (T58257) Set site logo from mediawiki.skinning.interface module instead of inline styles in the HTML.

• Removed ApiQueryUsers::getAutoGroups(). (deprecated since 1.20)

• Removed XmlDumpWriter::schemaVersion(). (deprecated since 1.20)

• Removed LogEventsList::getDisplayTitle(). (deprecated since 1.20)

• Removed Preferences::trySetUserEmail(). (deprecated since 1.20)

• Removed mw.user.name() and mw.user.anonymous() methods. (deprecated since 1.20)

• Removed 'ok' and 'err' parameters in the mediawiki.api modules. (deprecated since 1.20)

• Removed 'async' parameter from the mw.Api#getCategories() method. (deprecated since 1.20)

• Removed 'jquery.json' module. (deprecated since 1.24) Use the 'json' module and global JSON object instead.

• Deprecated OutputPage::readOnlyPage() and OutputPage::rateLimited(). Also, the former will now throw an MWException if called with one or more arguments.

• Removed hitcounters and associated code.

• The "temp" zone of the upload respository is now considered private. If it already exists (such as under the images/ directory), please make sure that the directory is not web readable (e.g. via a .htaccess file).

• BREAKING CHANGE: In the XML dump format used by Special:Export and dumpBackup.php, the <model> and <format> tags now apprear before the <text> tag, instead of after the <text> and <sha1> tags. The new schema version is 0.10, the new schema URI is: https://www.mediawiki.org/xml/export-0.10.xsd

• MWFunction::call() and MWFunction::callArray() were removed, having being deprecated in 1.22.

• Deprecated the getInternalLinkAttributes, getInternalLinkAttributesObj, and getInternalLinkAttributes methods in Linker, and removed getExternalLinkAttributes method, which was deprecated in MediaWiki 1.18.

• Removed Sites class, which was deprecated in 1.21 and replaced by SiteSQLStore.

• Added wgRelevantArticleId to the client-side config, for use on special pages.

• Deprecated the TitleIsCssOrJsPage hook. Superseded by the ContentHandlerDefaultModelFor hook since MediaWiki 1.21.

• Deprecated the TitleIsWikitextPage hook. Superseded by the ContentHandlerDefaultModelFor hook since MediaWiki 1.21.

• Changed parsing of variables in schema (.sql) files: ** The substituted values are no longer parsed. (Formerly, several passes were made for each variable, so depending on the order in which variables were defined, variables might have been found inside encoded values. This is no longer the case.) ** Variables are no longer string encoded when the /$var/ syntax is used. If string encoding is necessary, use the '{$var}' syntax instead. ** Variable names must only consist of one or more of the characters "A-Za-z0-9_". ** In source text of the form '{$A}'{$B}' or {$A}{$B}`, where variable A does not exist yet variable B does, the latter may not be replaced. However, this difference is unlikely to arise in practice.

• (T67278) RFC, PMID, and ISBN "magic links" must be surrounded by non-word characters on both sides.

• The FormatAutocomments hook will now receive $pre and $post as booleans, rather than as strings that must be prepended or appended to $comment.

• (T30950, T31025) RFC, PMID, and ISBN "magic links" can no longer contain newlines; but they can contain   and other non-newline whitespace.

• The 'mediawiki.action.edit' ResourceLoader module no longer generates the edit toolbar, which has been moved to a separate 'mediawiki.toolbar' module. If you relied on this behavior, update your scripts' dependencies.

• HTMLForm's 'vform' display style has been separated to a subclass. Therefore:

  • HTMLForm::isVForm() is now deprecated.
  • You can no longer do this: $form = new HTMLForm( … ); $form->setDisplayFormat( 'vform' ); // throws exception Instead, do this: $form = HTMLForm::factory( 'vform', … );

• Deprecated Revision methods getRawUser(), getRawUserText() and getRawComment().

• BREAKING CHANGE: mediawiki.user.generateRandomSessionId: The alphabet of the prior string returned was A-Za-z0-9 and now it is 0-9A-F

• (T87504) Avoid serving SVG background-images in CSS for Opera 12, which renders them incorrectly when combined with border-radius or background-size.

• Removed maintenance script dumpSisterSites.php.

• DatabaseBase class constructors must be called using the array argument style. Ideally, DatabaseBase:factory() should be used instead in most cases.

• Deprecated ParserOutput::addSecondaryDataUpdate and ParserOutput::getSecondaryDataUpdates. This is a hard deprecation, with getSecondaryDataUpdates returning an empty array and addSecondaryDataUpdate throwing an exception. These functions will be removed in 1.26, since they interfere with caching of ParserOutput objects.

• Introduced new hook 'SecondaryDataUpdates' that allows extensions to inject custom updates.

• Introduced new hook 'OpportunisticLinksUpdate' that allows extensions to perform updates when a page is re-rendered.

• EditPage::attemptSave has been modified not to call handleStatus itself and instead just returns the Status object. Extension calling it should be aware of this.

• Removed class DBObject. (unused since 1.10)

• wfDiff() is deprecated.

• The -m (maximum replication lag) option of refreshLinks.php was removed. It had no effect since MediaWiki 1.18 and should be removed from any cron jobs or similar scripts you may have set up.

• (T85864) The following messages no longer support raw html: redirectto, thisisdeleted, viewdeleted, editlink, retrievedfrom, version-poweredby-others, retrievedfrom, thisisdeleted, viewsourcelink, lastmodifiedat, laggedslavemode, protect-summary-cascade

• All BloomCache related code has been removed. This was largely experimental.

• $wgResourceModuleSkinStyles no longer supports per-module local or remote paths. They can only be set for the entire skin.

• Removed global function swap(). (deprecated since 1.24)

• Deprecated the ".php5" file extension entry points and the $wgScriptExtension configuration variable. Refer to the ".php" files instead. If you want ".php5" URLs to continue to work, set up redirects. In Apache, this can be done by enabling mod_rewrite and adding the following rules to your configuration:

  RewriteEngine On RewriteBase / RewriteRule ^(.*).php5 $1.php [R=301,L]

• The global importScriptURI and importStylesheetURI functions, as well as the loadedScripts object, from wikibits.js (deprecated since 1.17) now emit warnings through mw.log.warn when accessed.

= MediaWiki 1.24 =

== MediaWiki 1.24.6 ==

This is a maintenance release of the MediaWiki 1.24 branch.

=== Changes since 1.24.5 ===

• (T121892) Fix fatal error on some Special pages, introduced in 1.24.5.

== MediaWiki 1.24.5 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.24.4 ===

• (T117899) SECURITY: $wgArticlePath can no longer be set to relative paths that do not begin with a slash. This enabled trivial XSS attacks. Configuration values such as "http://my.wiki.com/wiki/$1" are fine, as are "/wiki/$1". A value such as "$1" or "wiki/$1" is not and will now throw an error.
• (T119309) SECURITY: Use hash_compare() for edit token comparison
• (T118032) SECURITY: Don't allow cURL to interpret POST parameters starting with '@' as file uploads
• (T115522) SECURITY: Passwords generated by User::randomPassword() can no longer be shorter than $wgMinimalPasswordLength
• (T97897) SECURITY: Improve IP parsing and trimming. Previous behavior could result in improper blocks being issued
• (T109724) SECURITY: Special:MyPage, Special:MyTalk, Special:MyContributions and related pages no longer use HTTP redirects and are now redirected by MediaWiki
• (T103237) $wgUseGzip had no effect when using file cache.

== MediaWiki 1.24.4 ==

This is a security and maintenance release of the MediaWiki 1.24 branch.

=== Changes since 1.24.3 ===

• (T91653) Minimal PSR-3 debug logger to support backports from 1.25+.
• (T68650) Fix indexing of moved pages with PostgreSQL. Requires running update.php to fix.
• (T91850) SECURITY: Add throttle check in ApiUpload and SpecialUpload
• (T91203, T91205) SECURITY: API: Improve validation in chunked uploading
• (T95589) SECURITY: RevDel: Check all revisions for suppression, not just the first
• (T108616) SECURITY: Avoid exposure of local path in PNG thumbnails

== MediaWiki 1.24.3 ==

This is a security and maintenance release of the MediaWiki 1.24 branch.

=== Changes since 1.24.2 ===

• (T94116) SECURITY: Compare API watchlist token in constant time
• (T97391) SECURITY: Escape error message strings in thumb.php
• (T106893) SECURITY: Don't leak autoblocked IP addresses on Special:DeletedContributions
• Update jQuery from v1.11.2 to v1.11.3.
• (T102562) Fix InstantCommons parameters to handle the new HTTPS-only policy of Wikimedia Commons.

== MediaWiki 1.24.2 ==

This is a security and maintenance release of the MediaWiki 1.24 branch.

=== Changes since 1.24.1 ===

• (T85848, T71210) SECURITY: Don't parse XMP blocks that contain XML entities, to prevent various DoS attacks.
• (T85848) SECURITY: Don't allow directly calling Xml::isWellFormed, to reduce likelihood of DoS.
• (T88310) SECURITY: Always expand xml entities when checking SVG's.
• (T73394) SECURITY: Escape > in Html::expandAttributes to prevent XSS.
• (T85855) SECURITY: Don't execute another user's CSS or JS on preview.
• (T64685) SECURITY: Allow setting maximal password length to prevent DoS when using PBKDF2.
• (T85349, T85850, T86711) SECURITY: Multiple issues fixed in SVG filtering to prevent XSS and protect viewer's privacy.
• Fix case of SpecialAllPages/SpecialAllMessages in SpecialPageFactory to fix loading these special pages when $wgAutoloadAttemptLowercase is false.
• (bug T70087) Fix Special:ActiveUsers page for installations using PostgreSQL.
• (bug T76254) Fix deleting of pages with PostgreSQL. Requires a schema change and running update.php to fix.

== MediaWiki 1.24.1 ==

This is a security and maintenance release of the MediaWiki 1.24 branch.

=== Changes since 1.24.0 ===

• (bug T76686) [SECURITY] thumb.php outputs wikitext message as raw HTML, which could lead to xss. Permission to edit MediaWiki namespace is required to exploit this.
• (bug T77028) [SECURITY] Malicious site can bypass CORS restrictions in $wgCrossSiteAJAXdomains in API calls if it only included an allowed domain as part of its name.
• (bug T74222) The original patch for T74222 was reverted as unnecessary.
• Fixed a couple of entries in RELEASE-NOTES-1.24.
• (bug T76168) OutputPage: Add accessors for some protected properties.
• (bug T74834) Make 1.24 branch directly installable under PostgreSQL.

== MediaWiki 1.24.0 ==

=== Configuration changes in 1.24 ===

• MediaWiki will no longer run if register_globals is enabled. It has been deprecated for 5 years now, and was removed in PHP 5.4. For more information about why, see https://www.mediawiki.org/wiki/register_globals.
• MediaWiki now requires PHP's iconv extension. openSUSE users may need to install the php5-iconv package. Users of other systems may need to add extension=iconv.so to php.ini or recompile PHP without --without-iconv.
• MediaWiki will no longer function if magic quotes are enabled. It has been deprecated for 5 years now, and was removed in PHP 5.4.
• The server's canonical hostname is available as $wgServerName, which is exposed in both mw.config and ApiQuerySiteinfo.
• Introduced $wgPagePropsHaveSortkey as a backwards-compatibility switch, for using the old schema of the page_props table, in case the respective schema update was not applied.
• $wgSearchEverythingOnlyLoggedIn was removed as the 'searcheverything' user option was removed. Use $wgNamespacesToBeSearchedDefault instead or if you used to have $wgDefaultUserOptions['searcheverything'] = 1.
• $wgMasterWaitTimeout has been deprecated.
• $wgDBClusterTimeout has been removed.
• $wgProxyKey has been removed. It is no longer used by MediaWiki core. Ensure $wgSecretKey is set in LocalSettings.php.
• $wgExtraInterlanguageLinkPrefixes is a new configuration variable that contains an array of interwiki prefixes that should be treated as language prefixes (i.e. turned into interlanguage links when $wgInterwikiMagic is set to true).
• $wgParserTestRemote has been removed.
• $wgCountTotalSearchHits has been removed. If you're concerned about efficiency of search, you should use something like CirrusSearch instead of built in search.
• Users in the 'sysop' group have access to Special:MergeHistory by default.
• $wgFileStore was removed after having been deprecated in 1.17. Alternative configurations are $wgDeletedDirectory and $wgHashedUploadDirectory.
• The deprecated $wgUseCommaCount variable has been removed.
• $wgEnableSorbs and $wgSorbsUrl have been removed.
• The UserCryptPassword and UserComparePassword hooks are no longer called. Any extensions using them must be updated to use the Password Hashing API.
• $wgCompiledFiles has been removed.
• $wgSortSpecialPages was removed, the listing on Special:SpecialPages is now always sorted.
• $wgSpecialPages may now use callback functions as an alternative to plain class names. This allows more control over constructor parameters.
• $wgHTCPMulticastAddress, $wgHTCPMulticastRouting and $wgHTCPPort were removed.
• $wgRC2UDPAddress, $wgRC2UDPInterwikiPrefix, $wgRC2UDPOmitBots, $wgRC2UDPPort and $wgRC2UDPPrefix have been removed.
• The default password type for MediaWiki has been changed from MD5 to PBKDF2. Password hashes will automatically be updated as users log in. If necessary, the old MD5 hashing can be restored by changing $wgPasswordDefault to 'B'. In addition, there is a maintenance script wrapOldPassword.php that can wrap all passwords in PBKDF2 (or the hashing algorithm of your choice) if you don't want to wait for your users to log in.
• $wgImportSources can now either be a regular array, or an associative map specifying subprojects on the interwiki map of the target wiki, or a mix of the two. Existing configurations will still work.
• Users must be able to edit through a page's protection to be able to delete it.
• The default thumb size ($wgDefaultUserOptions['thumbsize']) is now 300px, up from 180px. If you have altered the number of entries in $wgThumbLimits for your wiki, you may need to adjust your default user settings to compensate for the index change.
• $wgDeferredUpdateList is now deprecated, you should use DeferredUpdates::addUpdate() instead.
• $wgCanonicalLanguageLinks has been removed. Per Google recommendations, we will not send a rel=canonical pointing to a variant-neutral page, however we will send rel=alternate.
• $wgResourceLoaderLESSFunctions has been deprecated and will be removed in the future.
• $wgGoToEdit has been removed. Use the SpecialSearchNogomatch hook for similar functionality.

=== New features in 1.24 ===

• Added new hook WatchlistEditorBeforeFormRender, allowing subscribers to manipulate the list of pages and/or preload lots of data at once.
• Added new argument &$link in hook WatchlistEditorBuildRemoveLine, allowing the link to the title to be changed.
• Added a new hook, "WhatLinksHereProps", to allow extensions to annotate WhatLinksHere entries.
• Added a new hook, "ContentGetParserOutput", to customize parser output for a given content object.
• Deprecated the hook "ShowRawCssJs", use "ContentGetParserOutput" instead.
• HTMLForm's HTMLTextField now supports the 'url' type.
• HTMLForm fields may now be dynamically hidden based on the values of other fields in the form.
• HTMLForm now supports multiple copies of an input field or set of input fields, e.g. the form may request "one or more usernames" without having to have the user enter delimited list of names into a text field.
• Added a new hook, "SidebarBeforeOutput", to allow to edit the structure of the sidebar just before its display.
• (bug 49156) Added the mediawiki.cookie ResourceLoader module, which wraps jquery.cookie so that getting/setting a cookie is syntactically and functionally similar to using the WebRequest::getCookie() and WebResponse::setcookie() methods.
• (bug 44740) jQuery upgraded from 1.8.3 to 1.11.1. A new configuration option, $wgIncludejQueryMigrate, also loads the jQuery Migrate hack to let extensions and gadgets use the long-deprecated functions that were removed in jQuery 1.9. This option is turned off by default, and will be removed in MediaWiki 1.25.
• (bug 47076) jQuery UI upgraded from 1.8.24 to 1.9.2.
• Changes to content typography (fonts, etc.). See https://www.mediawiki.org/wiki/Typography_refresh for further information.
• WikitextContent will now render redirects with the expected "redirect" header, rather than as an ordered list. Code calling Article::viewRedirect can probably be changed to no longer special-case redirects.
• Header font set to a serif font stack. See https://www.mediawiki.org/wiki/Typography_refresh for further information.
• (bug 65567) Added a new hook, "BeforeHttpsRedirect", to allow cancellation of the HTTP to HTTPS redirect due to forceHTTPS cookie, userRequires, etc. This is only for page views, since this hook doesn't affect UserLogin, OAuth, CentralAuth, etc. ATTENTION: This hook is likely to be removed soon due to overall design of the system.
• (bug 17367) It is now possible to add pages to your watchlist from Special:UnwatchedPages without reloading the special page.
• New methods setVolatile and isVolatile are added to PPFrame, so that extensions such as Cite.php can mark that their output is volatile and shouldn't be cached.
• (bug 52817) Advanced search options are now saved on the search page itself, rather than in a dedicated pane in the preferences panel.
• (bug 44591) The dropdown actions menu (little triangle next to page tabs) in the Vector skin has gained a label that should make it more discoverable.
• MWCryptHKDF added for fast, cryptographically secure random number generation that won't deplete openssl's entropy pool.
• ResourceLoader: File modules can now provide a skip function that uses an inline feature test to bypass loading of the module.
• (bug 20210) Special pages may now provide autocompletion of their subpage names in search suggestions. Right now the only useful implementation is in Special:Log, but more are to come.
• Special:MostLinkedTemplates is no longer limited to transclusions from the Template namespace.
• Skins can now use 'remoteSkinPath' when defining ResourceLoader modules. This works the same as 'remoteExtPath' but is relative to the skins/ folder instead of the extensions/ folder.
• Added the json2.js polyfill for the ES5 JSON.stringify and JSON.parse methods. Exposed as module "json" with a skip function to optimise loading.
• Extensions and skins may now use 'namemsg' in $wgExtensionCredits in addition to 'name', to allow for the name to be localizable. 'name' should still be specified for backwards-compatibility and to define the path Special:Version uses to find extension license information.
• Browser tests are now included to verify basic wiki functionality in developer environments. For details on running tests, see tests/browser/README.mediawiki.
• Upgrade jStorage to v0.4.10.
• {{!}} is now a magic word that produces the | character. This removes the need for Template:! for purposes such as passing pipes inside of parameters.
• (bug 20790) The block log snippet on Special:Contributions and while editing user and user talk pages now works for IP range blocks.
• (bug 9360) Added ability to change the page language for MediaWiki pages using Special:PageLanguage. All pages are set to wiki language by default. The feature needs to be enabled with $wgPageLanguageUseDB=true and permission needs to be set for 'pagelang'.
• Upgrade Moment.js to v2.8.3.
• (bug 67042) Added support for the HTML5 <rtc> tag for East Asian typography.
• Upgrade Sinon.JS to 1.10.3.
• Added the es5-shim polyfill for older or non-compliant javascript engines.
• Upgrade jQuery Cookie to v1.3.1.
• (bug 20476) Add a "viewsuppressed" user right to be able to view suppressed content but not suppress it ("suppressrevision" right).
• (bug 66440) The MediaWiki web installer will now allow you to choose the skins to enable (from the ones included in download tarball) and decide which one should be the default.
• (bug 68085, 68802) Links like [[localInterwikiPrefix:languageCode:pageTitle]], where localInterwikiPrefix is a member of the $wgLocalInterwikis array, will no longer be displayed in the sidebar when $wgInterwikiMagic is true. In a similar way, links like [[localInterwikiPrefix:File:Image.png]] and [[localInterwikiPrefix:Category:Hello]] will now render as regular links, and will not include the file or add the page to the category.
• New special page, MyLanguage, to redirect users to subpages with localised versions of a page. (Integrated from Extension:Translate)
• MediaWiki now supports multiple password types, including bcrypt and PBKDF2. The default type can be changed with $wgPasswordDefault and the type configurations can be changed with $wgPasswordConfig.
• Skins can now define custom styles for default ResourceLoader modules using the $wgResourceModuleSkinStyles global. See the Vector skin for examples.
• (bug 4488) There is now a preference to watch pages where the user has rollbacked an edit by default.
• (bug 15484) Users will now be redirected to the login page when they need to log in, rather than being shown a page asking them to log in and having to click another link to actually get to the login page.
• A JsonContent and JsonContentHandler were added for extensions to extend.
• (bug 35045) Redirects to sections will now update the URL in browser's address bar using the HTML5 History API. When [[Dog]] redirects to [[Animals#Dog]], the user will now see "Animals#Dog" in their browser instead of "Dog#Dog".
• API token handling has been rewritten. Any API module using tokens will need to be updated. See the entry below under "Action API internal changes".
• Added HTMLAutoCompleteSelectField.
• Added a new hook, "SkinPreloadExistence", to allow extensions to add titles to link existence cache before the page is rendered.
• Config::set() was moved to its own interface, MutableConfig. GlobalVarConfig::set() is now deprecated, does not implement MutableConfig.
• A MutableConfig named HashConfig was added, that stores an array of configuration settings.
• (bug 69418) A MultiConfig implementation was added that supports fallback to multiple Config instances.
• Update CSSJanus to v1.1.0.
• Added FormatJson::parse() returning status with result or localized error message
• Added DeletedContribsPager::reallyDoQuery hook allowing extensions to data to Special:DeletedContributions
• Added DeletedContributionsLineEnding hook allowing extensions to format Special:DeletedContributions lines
• (T69525) You can now make MediaWiki speed up its thumbnail rendering by using intermediary thumbnails. $wgThumbnailBuckets must be set to a list of target thumbnail widths; when a new thumbnail needs to be rendered, MediaWiki will find the smallest bucket smaller than the original but larger than the target width + $wgThumbnailMinimumBucketDistance, and it will scale that thumbnail, rather than the original, down to the target size at greater speed in return for minor loss of fidelity.

=== Bug fixes in 1.24 ===

• (bug 50572) MediaWiki:Blockip should support gender
• (bug 49116) Footer copyright notice is now always displayed in user language rather than content language (same as copyright notice for editing interface).
• (bug 62258) A bug was fixed in File::getUnscaledThumb when a height restriction was present in the parameters. Images with both the "frame" option and a size specification set will now always ignore the provided size and display an unscaled image, as the documentation has always claimed it would.
• (bug 39035) Improved Vector skin performance by removing collapsibleNav, which used to collapse some sidebar elements by default. This removes -list id suffixes like p-lang-list: instead of using things like #p-lang-list, you can do #p-lang .body ul.
• (bug 890) Links in Special:RecentChanges and Special:Watchlist no longer follow redirects to their target pages.
• Parser now dies early if called recursively, instead of producing subtle bugs.
• (bug 14323) Redirect pages, when viewed with redirect=no, no longer hide the remaining page content.
• (bug 52587) Maintenance script deleteBatch.php no longer follows redirects in the file namespace and delete the file on the target page. It will still however delete the redirect page.
• (bug 22683) {{msgnw:}} and other uses of PPFrame::RECOVER_ORIG will correctly recover the original code of extension tags.
• (bug 65757) MSSQL: Update script drops unnamed constraints to be prepared for future updates. Because it's doing so heuristically, it may fail or drop wrong constraints.
• (bug 67870) wfShellExec() cuts off stdout at multiples of 8192 bytes.
• $wgRunJobsAsync now works with private wikis (e.g. read requires login).
• (bugs 57238, 65206) Blank pages can now be directly created.
• (bug 69789) Title::getContentModel() now loads from the database when necessary instead of incorrectly returning the default content model.
• (bug 69249) wfBaseConvert() now works around PHP Bug #50175 when using GMP.
• (bug 57909) URLs in the externallinks table will no longer have certain characters decoded in the query string.
• (bug 67368) LESS mixins like .background-image() correctly flip image references for RTL stylesheets now.

=== Action API changes in 1.24 ===

• action=parse API now supports prop=modules, which provides the list of ResourceLoader modules that should be used to enhance the parsed content.
• action=query&meta=siteinfo&siprop=interwikimap returns a new "protorel" field which is true if protocol-relative urls can be used to access a particular interwiki map entry.
• list=logevents now provides logpage, which is the page ID from the logging table, if ids are requested and the user has the permissions.
• action=edit now requires that appendtext, prependtext, or section=new be used when using the 'redirect' parameter, to prevent clients accidentally overwriting the target page with the content of the redirect.
• list=logevents will now return an error if both letitle and leprefix are specified.
• list=logevents has a new parameter, lenamespace, to allow filtering by namespace.
• action=expandtemplates has a new parameter, prop, and a new output format. The old format is still used if prop isn't provided, but this is deprecated.
• meta=userinfo can now return the count of unread pages on the watchlist.
• list=watchlist can now filter by unread status.
• The deprecated action=parse&prop=languageshtml has been removed.
• (bug 48071) action=setnotificationtimestamp no longer throws PHP or database errors when no pages are given.
• (bug 60734) Actions that use ApiPageSet (e.g. purge, watch, setnotificationtimestamp) will now include continuation information when using a generator.
• Removed 'props' and 'errors' from action=paraminfo, as they have extremely limited use and are generally inaccurate, unmaintained, and impossible to properly maintain.
• Formats dbg, dump, txt, wddx, and yaml are now deprecated.
• action=paraminfo now indicates when a parameter is specifying a submodule.
• The iwurl parameter to prop=iwlinks is deprecated in favor of iwprop=url, for parallelism with prop=langlinks.
• All tokens should be fetched from action=query&meta=tokens; all other methods of fetching tokens are deprecated. The value needed for meta=tokens's 'type' parameter for each module is documented in the action=help output and is returned from action=paraminfo.
• New action ClearHasMsg that can be used to clear HasMsg flag.
• The cmstartsortkey and cmendsortkey parameters to list=categorymembers are deprecated in favor of cmstarthexsortkey and cmendhexsortkey.
• (bug 63326) Add blockedtimestamp field to output of blockinfo property for the list=allusers and list=users modules.
• prop=imageinfo no longer requires iiurlwidth to be set when using iiurlparam.
• Added prop=linkshere, prop=fileusage, and prop=transcludedin, which are roughly equivalent to list=backlinks, list=imageusage, and list=embeddedin but can work on a list of titles (including titles from a generator).
• prop=redirects can now filter returned redirects by namespace.

=== Action API internal changes in 1.24 ===

• Methods for handling continuation are added to ApiResult, so actions other than query that use generators can easily support continuation.
• $wgAPIModules (and the related $wgAPIFormatModules, $wgAPIMetaModules, $wgAPIPropModules, and $wgAPIListModules settings) now allow API modules to be specified using a "module spec" array instead of a plain class name. A "module spec" is an associative array containing at least the 'class' key for the module's class, and optionally a 'factory' key for the factory function to use for the module. This is intended for extensions that want control over the instantiation of their API modules, to allow for proper dependency injection.
• A new param type 'submodule' is available. Parameters of this type will take the list of valid values from the module's ApiModuleManager for the group corresponding to the parameter name.
• The 'APIGetPossibleErrors' and 'APIGetResultProperties' hooks are no longer used.
• API token handling has been rewritten. Any API module using tokens will need to be updated:
  • ApiBase::needsToken now returns a token type instead of boolean true when a token is needed. Returning true will throw an exception. See documentation of that method for details.
  • Information for the 'token' parameter is automatically set by ApiBase getFinalParams and getFinalParamDescription.
  • ApiBase::getTokenSalt has been removed.
  • The hooks APIQueryInfoTokens, APIQueryRevisionsTokens, APIQueryRecentChangesTokens, APIQueryUsersTokens, and ApiTokensGetTokenTypes are deprecated, but are still called to support backwards-compatible token access.
• ApiBase::validateLimit and ApiBase::validateTimestamp are now protected.
• ApiQueryRedirects was removed; prop=redirects is now implemented by ApiQueryBacklinksProp along with the newly-added prop modules.
• The following methods have been deprecated and may be removed in a future release:
  • ApiBase::getResultProperties
  • ApiBase::getFinalResultProperties
  • ApiBase::addTokenProperties
  • ApiBase::getRequireOnlyOneParameterErrorMessages
  • ApiBase::getRequireMaxOneParameterErrorMessages
  • ApiBase::getRequireAtLeastOneParameterErrorMessages
  • ApiBase::getTitleOrPageIdErrorMessage
  • ApiBase::getPossibleErrors
  • ApiBase::getFinalPossibleErrors
  • ApiBase::parseErrors
  • ApiQuery::setGeneratorContinue
  • ApiQueryBase::checkRowCount
  • ApiQueryBase::titleToKey
  • ApiQueryBase::keyToTitle
  • ApiQueryBase::keyPartToTitle
  • ApiQueryInfo::getTokenFunctions
  • ApiQueryInfo::resetTokenCache
  • ApiQueryInfo::getEditToken
  • ApiQueryInfo::getDeleteToken
  • ApiQueryInfo::getProtectToken
  • ApiQueryInfo::getMoveToken
  • ApiQueryInfo::getBlockToken
  • ApiQueryInfo::getUnblockToken
  • ApiQueryInfo::getEmailToken
  • ApiQueryInfo::getImportToken
  • ApiQueryInfo::getWatchToken
  • ApiQueryInfo::getOptionsToken
  • ApiQueryRecentChanges::getTokenFunctions
  • ApiQueryRecentChanges::getPatrolToken
  • ApiQueryRevisions::getTokenFunctions
  • ApiQueryRevisions::getRollbackToken
  • ApiQueryUsers::getTokenFunctions
  • ApiQueryUsers::getUserrightsToken
• The following classes have been deprecated and may be removed in a future release:
  • ApiFormatDbg
  • ApiFormatDump
  • ApiFormatTxt
  • ApiFormatWddx
  • ApiFormatYaml
  • ApiTokens
• The following class constants have been deprecated and may be removed in a future release:
  • ApiBase::PROP_ROOT
  • ApiBase::PROP_LIST
  • ApiBase::PROP_TYPE
  • ApiBase::PROP_NULLABLE

=== Languages updated in 1.24 ===

MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Bugzilla reports.

=== Other changes in 1.24 ===

• The deprecated jquery.delayedBind ResourceLoader module was removed.
• The deprecated function mw.util.toggleToc was removed.
• The Special:Search hooks SpecialSearchGo and SpecialSearchResultsAppend were removed as they were unused.
• (bug 65477) User::pingLimiter() now has an additional profile point varying by action being used.
• mediawiki.util.$content no longer supports old versions of the Vector, Monobook, Modern and CologneBlue skins that don't yet implement the "mw-body" and/or "mw-body-primary" class name in their html.
• Added pp_sortkey column to page_props table, so pages can be efficiently queried and sorted by property value (bug 58032). See $wgPagePropsHaveSortkey if you want to postpone the schema change.
• BREAKING CHANGE: All four built-in MediaWiki skins (Vector, MonoBook, Modern and Cologne Blue) were moved out of MediaWiki core to their own respective repositories. They will be installed with the release tarball, but you must install them separately if installing MediaWiki from source code. A warning message displayed until you do it should guide you through the process. See also https://www.mediawiki.org/wiki/Manual:Skin_configuration.
• BREAKING CHANGE: Skins built for MediaWiki 1.15 and earlier that do not use the "headelement" template key are no longer supported. Setting $useHeadElement = false; is no longer supported and will not cause old keys like "headlinks", "skinnameclass", etc. to be defined.
• BREAKING CHANGE: The files commonElements.css, commonContent.css and commonInterface.css (in skins/common/) have been removed. Skins may no longer rely on their presence and include them in their style modules. ResourceLoader modules introduced in MediaWiki 1.23 should be loaded instead:
  • skins/common/commonElements.css → 'mediawiki.skinning.elements' module
  • skins/common/commonContent.css → 'mediawiki.skinning.content' module
  • skins/common/commonInterface.css → 'mediawiki.skinning.interface' module
• The deprecated 'SpecialVersionExtensionTypes' hook was removed.
• (bug 63891) Add 'X-Robots-Tag: noindex' header in action=render pages.
• SpecialPage no longer supports the syntax for invoking wfSpecial*() functions. Special pages should subclass SpecialPage and implement the execute() method.
• (bug 63755) The deprecated constants RC_MOVE and RC_MOVE_OVER_REDIRECT were removed.
• Special:MostLinkedTemplates has been renamed to Special:MostTranscludedPages.
• The skin autodiscovery mechanism has been deprecated and will be removed in MediaWiki 1.25. See https://www.mediawiki.org/wiki/Manual:Skin_autodiscovery for migration guide for creators and users of custom skins that relied on it.
• ResourceLoaderFileModule#getAllStyleFiles now returns all style files and all skin style files used by the module.
• Removed getLang() from IContextSource and subclasses. (deprecated since 1.19)
• Removed setLang() from subclasses of IContextSource. (deprecated since 1.19)
• Removed WebRequest::escapeAppendQuery(). (deprecated since 1.20)
• Removed info(), purge(), revert() and rollback() from the Article class; they have since become subclasses of the Action class. (deprecated since 1.19)
• SearchEngineReplacePrefixesComplete hook was removed.
• The "jquery.json" module has been deprecated. Use the "json" module instead.
• Removed HTMLForm::addJS(). (deprecated since 1.18)
• Removed LogEventsList::showHeader(). (deprecated since 1.19)
• Removed ImageGalleryBase::useSkin(). (deprecated since 1.18)
• Removed DatabaseMysqlBase::getLagFromProcesslist(). (deprecated since 1.19)
• Removed LoadBalancer::closeConnecton(). (deprecated since 1.18)
• Removed ApiBase::createContext(). (deprecated since 1.19)
• BREAKING CHANGE: The undocumented Special{$this->getName()}BeforeFormDisplay set of hooks has been removed and replaced by a single new hook SpecialPageBeforeFormDisplay.
• (bug 65781) Removed block warning on included {{Special:Contributions}}
• Removed Skin::makeGlobalVariablesScript(). (deprecated since 1.19)
• Removed MWNamespace::isMain(). (deprecated since 1.19)
• Removed Preferences::loadOldSearchNs(). (deprecated since 1.19)
• Removed OutputPage::getStatusMessage(). (deprecated since 1.18)
• Removed OutputPage::isUserJsAllowed(). (deprecated since 1.18)
• Removed Title::updateTitleProtection(). (deprecated since 1.19)
• Removed ParserOptions::setSkin(). (deprecated since 1.19)
• Removed Title::escapeCanonicalURL(). (deprecated since 1.19)
• Removed Title::escapeLocalURL(). (deprecated since 1.19)
• Removed Title::escapeFullURL(). (deprecated since 1.19)
• Removed User::isValidEmailAddr(). (deprecated since 1.18)
• Removed Title::getEscapedText(). (deprecated since 1.19)
• Removed Language::getFallbackLanguageCode(). (deprecated since 1.19)
• Removed WikiPage::isBigDeletion(). (deprecated since 1.19)
• Removed MWInit class which contained functions related to a now discontinued PHP compiler called hphpc. (deprecated since 1.22)
• ApiResult::enableSizeCheck() and disableSizeCheck() are now obsolete.
• Removed ResourceLoaderGetStartupModules hook. (deprecated since 1.23)
• Removed getFormFields(), onSubmit() and onSuccess() from FormlessAction, as these were meant specifically for FormAction instead.
• Removed Action::execute().
• Removed AjaxAddScript which has been obsolete since ResourceLoader and is unused by any modern extension.
• Removed maintenance/nextJobDB.php; no longer in use.
• Removed global function wfViewPrevNext(). (deprecated since 1.19)
• Removed global function xmlsafe() from Export.php. (moved to OAIRepo extension)
• Removed Title::userCanRead(). (deprecated since 1.19)
• Removed maintenance script importTextFile.php. Use edit.php script instead.
• A _from_namespace field has been added to the templatelinks, pagelinks, and filelinks tables. Run update.php to apply this change to the schema.
• Removed File::sha1Base36(). (deprecated since 1.19)
• Removed File::getPropsFromPath(). (deprecated since 1.19)
• Removed functions blockedPage(), noCreatePermission(), readOnlyPage() and userNotLoggedInPage() from EditPage.php. (deprecated since 1.19)
• Removed functions getContent(), getPreloadedText(), mergeChangesInto() and setPreloadedText() from EditPage.php. (deprecated since 1.21)
• Removed global functions wfArrayLookup(), wfArrayMerge(), wfDebugDieBacktrace() and wfTime(). (deprecated since 1.22)
• Browser support for Internet Explorer 6 and 7 lowered from Grade A to Grade C, meaning that JavaScript is no longer executed in these browser versions.
• Browser support for Opera 11 lowered from Grade A to Grade C.
• Removed IEFixes module which existed purely to provide support for MSIE versions below 7 (conditionally loaded only for those browsers).
• Deprecated SpecialPageFactory::getList() in favor of SpecialPageFactory::getNames()
• Action::checkCanExecute() no longer has a return value.
• Removed cleanupForIRC(), loadFromCurRow(), newFromCurRow(), notifyRC2UDP() and sendToUDP() from RecentChange.php. (deprecated since 1.22)
• Removed EnhancedChangesList::arrow(), sideArrow(), downArrow(), spacerArrow().
• Removed Xml::namespaceSelector(). (deprecated since 1.19)
• Removed WikiPage::estimateRevisionCount(). (deprecated since 1.19)
• MYSQL: Enum item added to "major MIME type" columns. Running update.php on MySQL < v5.1 may result in heavy processing.
• RSS and Atom feeds generated by MediaWiki no longer include a fallback stylesheet. It was ignored by most browsers these days anyway.
• SpecialSearchNoResults hook has been removed. SpecialSearchResults is now called unconditionally.
• TablePager::getBody() is now 'final' and can't be overridden in subclasses.
• TablePager::getBody() is deprecated, use getBodyOutput() or getFullOutput().
• Added $outputPage parameter to the SkinTemplateGetLanguageLink hook.
• log_page for move log entries store the original page ID, rather than that of the new redirect page. This is not retroactive.
• LCStoreAccel was removed. $wgLocalisationCacheConf can no longer be set to use this store class.
• Html::infoBox() no longer accepts paths relative to skins/common/images/.
• Deprecated defunct Skin::getCommonStylePath().
• Some extensions had their ResourceLoader modules depend on the "mediawiki" and "jquery" modules. In the past, this behavior was undefined, now it will throw an error.
• Removed BagOStuff::replace(). (deprecated since 1.23)
• In Linker.php, link(), linkText() and makeBrokenImageLinkObj() now display warnings if their first parameter is not a Title object. Also makeImageLink() now requires a Parser as its first parameter.
• (bug 67368) LESS functions embed() and embeddable(), added in MediaWiki 1.23 and broken by design, have been removed. Use appropriate LESS mixins instead.
• Removed cssjanus.py from maintenance directory as it was unused.
• Removed maintenance/purgeOldText.inc and the PurgeRedundantText() function it contained (superseded by Maintenance::purgeRedundantText() in 1.16). The purgeOldText.php maintenance script has been retained.
• PHPUnit tests can be found by directory discovery, by adding the directory path from your UnitTestsList callback. Older versions of MediaWiki core will barf at this usage.

==== Renamed classes ====

• CLDRPluralRuleConverter_Expression to CLDRPluralRuleConverterExpression
• CLDRPluralRuleConverter_Fragment to CLDRPluralRuleConverterFragment
• CLDRPluralRuleConverter_Operator to CLDRPluralRuleConverterOperator
• CLDRPluralRuleEvaluator_Range to CLDRPluralRuleEvaluatorRange
• CSSJanus_Tokenizer to CSSJanusTokenizer
• MediaWiki_I18N to MediaWikiI18N
• Parser_DiffTest to ParserDiffTest
• RevDel_ArchiveItem to RevDelArchiveItem
• RevDel_ArchiveList to RevDelArchiveList
• RevDel_ArchivedFileItem to RevDelArchivedFileItem
• RevDel_ArchivedFileList to RevDelArchivedFileList
• RevDel_ArchivedRevisionItem to RevDelArchivedRevisionItem
• RevDel_FileItem to RevDelFileItem
• RevDel_FileList to RevDelFileList
• RevDel_Item to RevDelItem
• RevDel_List to RevDelList
• RevDel_LogItem to RevDelLogItem
• RevDel_LogList to RevDelLogList
• RevDel_RevisionItem to RevDelRevisionItem
• RevDel_RevisionList to RevDelRevisionList
• WebInstaller_Complete to WebInstallerComplete
• WebInstaller_Copying to WebInstallerCopying
• WebInstaller_DBConnect to WebInstallerDBConnect
• WebInstaller_DBSettings to WebInstallerDBSettings
• WebInstaller_Document to WebInstallerDocument
• WebInstaller_ExistingWiki to WebInstallerExistingWiki
• WebInstaller_Install to WebInstallerInstall
• WebInstaller_Language to WebInstallerLanguage
• WebInstaller_Name to WebInstallerName
• WebInstaller_Options to WebInstallerOptions
• WebInstaller_Readme to WebInstallerReadme
• WebInstaller_ReleaseNotes to WebInstallerReleaseNotes
• WebInstaller_Restart to WebInstallerRestart
• WebInstaller_Upgrade to WebInstallerUpgrade
• WebInstaller_UpgradeDoc to WebInstallerUpgradeDoc
• WebInstaller_Welcome to WebInstallerWelcome

==== Removed classes ====

• IPBlockForm - Use SpecialBlock directly
• WatchlistEditor - Use SpecialEditWatchlist directly
• FormatExif - Use FormatMetadata directly
• RevertFileAction - Use RevertAction directly
• HistoryPage - Use HistoryAction directly
• RawPage - Use RawAction directly
• StubContLang - Use Language::factory() instead
• XMLReader2 - Use XMLReader directly
• ResourceLoaderLESSFunctions - No longer in use, not intended for public usage

==== Removed files ==== The skins/common/ directory, previously containing some assets intended to be used by skins and a number of legacy styles and scripts, has been removed. Its contents have been deleted or relocated into the resources/ directory. Full list of files that are no longer available follows.

• skins/common/ajax.js
• skins/common/commonContent.css
• skins/common/commonElements.css
• skins/common/commonInterface.css
• skins/common/commonPrint.css
• skins/common/config-cc.css
• skins/common/config.css
• skins/common/config.js
• skins/common/feed.css
• skins/common/IEFixes.js
• skins/common/oldshared.css
• skins/common/protect.js
• skins/common/shared.css
• skins/common/upload.js
• skins/common/wikibits.js
• skins/common/images/add.png
• skins/common/images/ajax-loader.gif
• skins/common/images/arrow_disabled_first_25.png
• skins/common/images/arrow_disabled_last_25.png
• skins/common/images/arrow_disabled_left_25.png
• skins/common/images/arrow_disabled_right_25.png
• skins/common/images/arrow_first_25.png
• skins/common/images/arrow_last_25.png
• skins/common/images/arrow_left_25.png
• skins/common/images/arrow_right_25.png
• skins/common/images/Arr_.png
• skins/common/images/Arr_d.png
• skins/common/images/Arr_l.png
• skins/common/images/Arr_r.png
• skins/common/images/Arr_u.png
• skins/common/images/bullet.gif
• skins/common/images/button_bold.png
• skins/common/images/button_extlink.png
• skins/common/images/button_headline.png
• skins/common/images/button_hr.png
• skins/common/images/button_image.png
• skins/common/images/button_italic.png
• skins/common/images/button_link.png
• skins/common/images/button_media.png
• skins/common/images/button_nowiki.png
• skins/common/images/button_sig.png
• skins/common/images/button_template.png
• skins/common/images/cc-0.png
• skins/common/images/cc-by-nc-sa.png
• skins/common/images/cc-by-sa.png
• skins/common/images/cc-by.png
• skins/common/images/Checker-16x16.png
• skins/common/images/closewindow.png
• skins/common/images/closewindow19x19.png
• skins/common/images/critical-32.png
• skins/common/images/diffunderline.gif
• skins/common/images/download-32.png
• skins/common/images/feed-icon.png
• skins/common/images/feed-icon.svg
• skins/common/images/gnu-fdl.png
• skins/common/images/help-question-hover.gif
• skins/common/images/help-question.gif
• skins/common/images/info-32.png
• skins/common/images/link_icon.gif
• skins/common/images/magnify-clip-rtl.png
• skins/common/images/magnify-clip.png
• skins/common/images/mediawiki.png
• skins/common/images/nextredirectltr.png
• skins/common/images/nextredirectrtl.png
• skins/common/images/poweredby_mediawiki_88x31.png
• skins/common/images/public-domain.png
• skins/common/images/question-small.png
• skins/common/images/question.svg
• skins/common/images/redirectltr.png
• skins/common/images/redirectrtl.png
• skins/common/images/remove.png
• skins/common/images/spinner.gif
• skins/common/images/tick-32.png
• skins/common/images/tipsy-arrow.gif
• skins/common/images/tooltip_icon.png
• skins/common/images/warning-32.png
• skins/common/images/wiki.png
• skins/common/images/Zoom_sans.gif
• skins/common/images/ar/button_bold.png
• skins/common/images/ar/button_headline.png
• skins/common/images/ar/button_italic.png
• skins/common/images/ar/button_link.png
• skins/common/images/ar/button_nowiki.png
• skins/common/images/be-tarask/button_bold.png
• skins/common/images/be-tarask/button_italic.png
• skins/common/images/be-tarask/button_link.png
• skins/common/images/cyrl/button_bold.png
• skins/common/images/cyrl/button_italic.png
• skins/common/images/cyrl/button_link.png
• skins/common/images/de/button_bold.png
• skins/common/images/de/button_italic.png
• skins/common/images/fa/button_bold.png
• skins/common/images/fa/button_headline.png
• skins/common/images/fa/button_italic.png
• skins/common/images/fa/button_link.png
• skins/common/images/fa/button_nowiki.png
• skins/common/images/icons/fileicon-c.png
• skins/common/images/icons/fileicon-cpp.png
• skins/common/images/icons/fileicon-deb.png
• skins/common/images/icons/fileicon-djvu.png
• skins/common/images/icons/fileicon-djvu.xcf
• skins/common/images/icons/fileicon-dvi.png
• skins/common/images/icons/fileicon-exe.png
• skins/common/images/icons/fileicon-h.png
• skins/common/images/icons/fileicon-html.png
• skins/common/images/icons/fileicon-iso.png
• skins/common/images/icons/fileicon-java.png
• skins/common/images/icons/fileicon-mid.png
• skins/common/images/icons/fileicon-mov.png
• skins/common/images/icons/fileicon-o.png
• skins/common/images/icons/fileicon-ogg.png
• skins/common/images/icons/fileicon-ogg.xcf
• skins/common/images/icons/fileicon-pdf.png
• skins/common/images/icons/fileicon-ps.png
• skins/common/images/icons/fileicon-psd.png
• skins/common/images/icons/fileicon-rm.png
• skins/common/images/icons/fileicon-rpm.png
• skins/common/images/icons/fileicon-svg.png
• skins/common/images/icons/fileicon-tar.png
• skins/common/images/icons/fileicon-tex.png
• skins/common/images/icons/fileicon-ttf.png
• skins/common/images/icons/fileicon-txt.png
• skins/common/images/icons/fileicon.png
• skins/common/images/ksh/button_S_italic.png

= MediaWiki 1.23 =

== MediaWiki 1.23.17 ==

=== Changes since 1.23.16 === <!--T:69-->

• Fix syntax errors introduced in 1.23.16 when running PHP 5.3.

== MediaWiki 1.23.16 == This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.15 ===

• (T68404) CSS3 attr() function with url type is no longer allowed in inline styles.
• (T156184) $wgRawHtml will no longer apply to internationalization messages.
• Submitting the lgtoken and lgpassword parameters in the query string to action=login is now deprecated and outputs a warning. They should be submitted in the POST body instead.
• (T109140) (T122209) SECURITY: Special:UserLogin and Special:Search allow redirect to interwiki links.
• (T144845) SECURITY: XSS in SearchHighlighter::highlightText() when $wgAdvancedSearchHighlighting is true.
• (T125177) SECURITY: API parameters may now be marked as "sensitive" to keep their values out of the logs.
• (T150044) SECURITY: "Mark all pages visited" on the watchlist now requires a CSRF token.
• (T156184) SECURITY: Escape content model/format url parameter in message.
• (T151735) SECURITY: SVG filter evasion using default attribute values in DTD declaration.
• (T48143) SECURITY: Spam blacklist ineffective on encoded URLs inside file inclusion syntax's link parameter.
• (T108138) SECURITY: Sysops can undelete pages, although the page is protected against it.

== MediaWiki 1.23.15 ==

This is a maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.14 ===

• BREAKING CHANGE: $wgHTTPProxy is now required for all external requests made by MediaWiki via a proxy. Relying on the http_proxy environment variable is no longer supported.
• (T139565) SECURITY: API: Generate head items in the context of the given title
• (T137264) SECURITY: XSS in unclosed internal links
• (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
• (T133147) SECURITY: Require login to preview user CSS pages
• (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is the top file
• (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in permissions
• (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
• (T115333) SECURITY: Check read permission when loading page content in ApiParse
• Remove support for $wgWellFormedXml = false, all output is now well formed

== MediaWiki 1.23.13 ==

This is a maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.12 ===

• (T121892) Fix fatal errors on some Special pages, introduced in 1.23.12.

== MediaWiki 1.23.12 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.11 ===

• (T117899) SECURITY: $wgArticlePath can no longer be set to relative paths that do not begin with a slash. This enabled trivial XSS attacks. Configuration values such as "http://my.wiki.com/wiki/$1" are fine, as are "/wiki/$1". A value such as "$1" or "wiki/$1" is not and will now throw an error.
• (T119309) SECURITY: Use hash_compare() for edit token comparison
• (T118032) SECURITY: Don't allow cURL to interpret POST parameters starting with '@' as file uploads
• (T115522) SECURITY: Passwords generated by User::randomPassword() can no longer be shorter than $wgMinimalPasswordLength
• (T97897) SECURITY: Improve IP parsing and trimming. Previous behavior could result in improper blocks being issued
• (T109724) SECURITY: Special:MyPage, Special:MyTalk, Special:MyContributions and related pages no longer use HTTP redirects and are now redirected by MediaWiki

== MediaWiki 1.23.11 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.10 ===

• (T91850) SECURITY: Add throttle check in ApiUpload and SpecialUpload
• (T91203, T91205) SECURITY: API: Improve validation in chunked uploading
• (T108616) SECURITY: Avoid exposure of local path in PNG thumbnails

== MediaWiki 1.23.10 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.9 ===

• (T94116) SECURITY: Compare API watchlist token in constant time
• (T97391) SECURITY: Escape error message strings in thumb.php
• (T106893) SECURITY: Don't leak autoblocked IP addresses on Special:DeletedContributions
• (bug 67644) Make AutoLoaderTest handle namespaces
• (T91653) Minimal PSR-3 debug logger to support backports from 1.25+.
• (T102562) Fix InstantCommons parameters to handle the new HTTPS-only policy of Wikimedia Commons.

== MediaWiki 1.23.9 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.8 ===

• (T85848, T71210) SECURITY: Don't parse XMP blocks that contain XML entities, to prevent various DoS attacks.
• (T85848) SECURITY: Don't allow directly calling Xml::isWellFormed, to reduce likelihood of DoS.
• (T88310) SECURITY: Always expand xml entities when checking SVG's.
• (T73394) SECURITY: Escape > in Html::expandAttributes to prevent XSS.
• (T85855) SECURITY: Don't execute another user's CSS or JS on preview.
• (T85349, T85850, T86711) SECURITY: Multiple issues fixed in SVG filtering to prevent XSS and protect viewer's privacy.
• (bug T68650) Fix indexing of moved pages with PostgreSQL. Requires running update.php to fix.
• (bug T70087) Fix Special:ActiveUsers page for installations using PostgreSQL.

== MediaWiki 1.23.8 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.7 ===

• (bug T76686) [SECURITY] thumb.php outputs wikitext message as raw HTML, which could lead to xss. Permission to edit MediaWiki namespace is required to exploit this.
• (bug T77028) [SECURITY] Malicious site can bypass CORS restrictions in $wgCrossSiteAJAXdomains in API calls if it only included an allowed domain as part of its name.
• (bug T74222) The original patch for T74222 was reverted as unnecessary.

== MediaWiki 1.23.7 ==

This is a security and maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.6 ===

• (bugs 66776, 71478) SECURITY: User PleaseStand reported a way to inject code into API clients that used format=php to process pages that underwent flash policy mangling. This was fixed along with improving how the mangling was done for format=json, and allowing sites to disable the mangling using $wgMangleFlashPolicy.
• (bug 70901) SECURITY: User Jackmcbarn reported that the ability to update the content model for a page could allow an unprivileged attacker to edit another user's common.js under certain circumstances. The user right "editcontentmodel" was added, and is needed to change a revision's content model.
• (bug 71111) SECURITY: User PleaseStand reported that on wikis that allow raw HTML, it is not safe to preview wikitext coming from an untrusted source such as a cross-site request. Thus add an edit token to the form, and when raw HTML is allowed, ensure the token is provided before showing the preview. This check is not performed on wikis that both allow raw HTML and anonymous editing, since there are easier ways to exploit that scenario.
• (bug 72222) SECURITY: Do not show log action when the entry is revdeleted with DELETED_ACTION. NOTICE: this may be reverted in a future release pending a public RFC about the desired functionality. This issue was reported by user Bawolff.
• (bug 71621) Make allowing site-wide styles on restricted special pages a config option.
• (bug 42723) Added updated version history from 1.19.2 to 1.22.13
• $wgMangleFlashPolicy was added to make MediaWiki's mangling of anything that might be a flash policy directive configurable.

== MediaWiki 1.23.6 ==

This is a maintenance release of the MediaWiki 1.23 branch.

=== Changes since 1.23.5 ===

• (Bug 72274) Job queue not runnin

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