MediaWiki

Release notes/1.38

< Release notes

MediaWiki 1.38

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MediaWiki 1.38.7

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This is a security and maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.6

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MediaWiki 1.38.6

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This is a security and maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.5

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  • Localisation updates.
  • (task T325872) ChangeTags: Remove table name from condition.
  • (task T324895) MWCallbackStream: Add explicit $stream property.
  • (task T297031, task T326039) PostgresUpdater: Move setDefault ahead of changeNullableField.
  • Remove /images .htaccess rules that are no longer relevent.
  • Disable php in .htaccess of images directory as a hardening measure.
  • (task T322583) Include missing message parameter in message.
  • Fix phan error when Excimer is enabled.
  • (task T323373) Parser: Fix extractSections() behavior for PHP >= 8.0
  • (task T326021) Add matrix: to $wgUrlProtocols.
  • (task T326377) rdbms: Use DBConnRef in SelectQueryBuilder.
  • api/en.json: api-help-datatype-expiry add missing 'may'.
  • (task T328222) Pass empty string to strlen() if schema is null for PostgresDatabase.
  • (task T317329) OutputPage: Fix undefined ['host'] in ImagePreconnect code.
  • (task T289926) SpecialRevisionDelete: Set default of for wpReason.
  • (task T155582, task T328503) Fix XML dumps for content types with non-string getNativeData().
  • (task T314099) revisiondelete: Replace dynamic property Status::$itemStatuses.
  • (task T329198) ParamValidator: Improve paramvalidator-help-multi-max message.
  • (task T292348) WikiImporter: do not fail if upload entry in dump lacks 'text' tag.
  • (task T295637) Add no to fallback chain of nb and nn.
  • (task T329484) API: Fix query+allimages user parameter description.
  • (task T330529) SpecialEditTags: Set default of for wpReason.
  • (task T330526) htmlform: Handle null from HTMLFormField::getDefault in multiselects.
  • (task T285159, CVE-2023-29141) SECURITY: Do not apply autoblocks to untrusted XFF headers.

MediaWiki 1.38.5

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This is a security and maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.4

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  • Localisation updates.
  • Tests: Explicit cast to int in RandomImageGenerator test (php8 warnings).
  • (task T319000) WebInstaller: Don't try and run trim() on null.
  • (task T318753) Installer: Disable logo dropper for now.
  • (task T320864) When calling mail(), use an array for headers.
  • (task T311567) In ManualLogEntry, cast the comment to string.
  • (task T289926) api: Fix minor PHP 8.1 incompatibility in ApiOptions.
  • (task T322803) SpecialBotPasswords: Don't pass null to trim().
  • (task T323082) Upgrading wikimedia/xmp-reader (0.8.1 => 0.8.5).
  • Language: Handle ronna and quetta.
  • PostgresUpdater: Remove trailing space from 'user_id ' column.
  • (task T304515) LCStoreStaticArray: atomically replace the cache file.
  • (task T324890, task T324891, task T324901) Parser: Allow dynamic properties on PHP 8.2.
  • (task T324910) On pages using multi-content revisions, the raw content of a specific slot can be retrieved using the action=raw&slot=<role-name> query parameters.
  • (task T322637) SECURITY: sqlite should not create DB file world-readable.

MediaWiki 1.38.4

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This is a maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.3

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  • Fix missing use statement from backport of fix for task T307278.

MediaWiki 1.38.3

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This is a security and maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.2

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  • Localisation updates.
  • (task T311568) UploadBase::setTempFile() handle $tempPath being passed as null.
  • (task T311559) SpecialListFiles: user parameter isn't always present.
  • (task T311561) ImageListPager: Don't call htmlspecialchars() on null.
  • (task T311920) SpecialBlockList: Prevent passing null to trim().
  • (task T311921) SpecialUserrights: Don't pass null to str_replace.
  • (task T311570) SpecialWithoutInterwiki: Don't pass null through to Title::capitalize().
  • (task T311574, task T311576) SpecialLinkSearch: Don't pass null through to the parser.
  • (task T311360) RecentChange: Straight join to actor table when needed.
  • (task T311360) RecentChange: Make join to comment table also straight.
  • Remove messages in en-gb.json.
  • (task T312519, task T312520) Parser::extensionSubstitution() Don't run substr() on null.
  • (task T287564) populateInterwiki: Include not null columns iw_api/iw_wikiid.
  • (task T312302) SpecialRedirect: Don't pass null to explode.
  • RemoveInvalidEmails: Fix quoting for postgres.
  • (task T312678) import: UploadSourceAdapter::stream_read() don't pass null to strlen().
  • (task T312300) SpecialDiff: Don't pass null to explode().
  • (task T312680) parser: Fix CoreParserFunctions::urlencode() null coalescence $arg.
  • (task T289926) Handle null passed to wfShorthandToInteger() and Html::element().
  • (task T289926) Ensure that strlen() does not get passed a (valid) null.
  • (task T312301) SpecialDiff: Don't pass null to trim().
  • Hooks: Use more meaningful name for SkinAfterPortlet hook parameter.
  • (task T289926) Ensure we don't pass null to mb_strlen.
  • (task T312305, task T311572, task T311571, task T311578) HtmlForm: Null coalescence in trim() calls.
  • (task T289926) site: Consistently return null from Site::getDomain().
  • (task T307304, task T289879) filebackend,jobqueue: Add signature for FilterIterator::accept().
  • (task T304559) Use page ID from parent revision, improve logging.
  • (task T312183) rdbms: Adapt hasOrMadeRecentPrimaryChanges test mock for PHP 8.1.
  • Add application/vnd.ms-opentype to MIME list.
  • Allow composer/installers plugin in composer.json.
  • (task T313663) Make ReadOnlyModeTest work in php8.
  • (task T313663) Make HandlerTestTrait compatible with php8.1.
  • (task T313663) [php8] Make DeletePageTest stop giving warnings on php8.1.
  • Change type hints for BatchRowIterator and NotRecursiveIterator for compatibility with PHP 8.1.
  • (task T313663) [php8.1] Change override of $wgResourceBasePath for CSP tests.
  • (task T313663) parser: Mock WikiPage::getContentModel in ParserCacheTest to fix php8.1.
  • (task T313663) [php8.1] Make WikiImporterFactoryTest use better mock for ImportSource.
  • Fix tests so getName() doesn't return null.
  • (task T313663) [php8] Don't use strlen on potentially null string.
  • (task T313663) [php8.1] Suppress test warning about providing null.
  • (task T313663) [php8.1] mock User::getTitleKey() in DeaultPreferencesFactoryTest.
  • (task T313663) Parser will use current timestamp instead of null if passed a RevisionRecord that does not have a timestamp.
  • (task T313663) Add explicit null check for $sha in FileBackend [php8.1].
  • (task T313663) LogFormatter: Cast argument of ctype_digit to string [php8.1].
  • (task T313663) Mock UserOptionsManager::getOption for php8.1.
  • (task T289879, task T289926) Get rid of warnings on PHP 8.1.
  • (task T313663) Check for null return of preg_replace in MediaWikiTitleCodec.
  • (task T313663) cast db name to string when checking if it is read only [php8.1].
  • (task T313663) Avoid testing strlen on null in ApiQuerySiteinfo [php 8.1 compat].
  • (task T313663) Use default timezone UTC for SpecialWatchlistTest [php 8.1].
  • (task T313663) Mock User::getTitleKey in SpecialPreferencesTest [php 8.1].
  • (task T314096) Migrate use of ${var}-style string interpolation.
  • (task T314099) preprocessor: Add missing field declarations.
  • (task T313663, task T313662) Make default value for optional args 0 be not null.
  • (task T313663) [php8.1] Mock out getLocalDomainID for WatchedItemStore tests.
  • (task T313663) Suppress warnings for the null test of addIdentifierQuotes.
  • (task T314225) SpecialCategories: Null coalescene $par.
  • (task T314099) User: Allow dynamic properties on PHP 8.2.
  • (task T314404) SpecialGoToInterwiki: Null coalescene $par.
  • (task T314397) SpecialBlock: Better handle null in getTargetUserTitle.
  • (task T314099) phpunit: Fix trivial dynamic property usages in tests.
  • (task T314405) UploadStash: Check if us_prop is set in the fileMetadata.
  • (task T313663) Make ChangesListSpecialPageTest cast to string for php 8.1.
  • (task T313663) Do not test giving a null fragment to Title::makeTitle.
  • (task T314550) SpecialMergeHistory: Set timestamp to if no mergepoint.
  • (task T314551) SpecialMergeHistory: Set defaults for target and dest parameters.
  • (task T313663) Cast results of Sqlite test to string [php 8.1].
  • (task T314208) Set $wgServer for HttpRequestFactoryTest to prevent warnings on php8.1.
  • (task T314208, task T297082) phpunit: Fallback to global default user options.
  • (task T307282) Avoid passing null to strcasecmp(), for PHP 8.1.
  • Fix a couple deprecation warnings in the installer under PHP 8.1.
  • api: Add rel=nofollow to help examples.
  • (task T307613) Validate length of user email on Special:ChangeEmail/Special:CreateAccount.
  • (task T314226) LoginSignupSpecialPage: Check if $value is a string before length.
  • (task T314824) tests: Update parser test after i18n change.
  • (task T313663, task T296083) context: Replace deprecated User::getOption.
  • (task T295958, task T278847) MediaWiki-Docker: Switch PHP images to PHP7.4.
  • (task T314906, task T314907) SpecialBlock: Set defaults for wpPageRestrictions and wpNamespaceRestrictions.
  • (task T315309) ImportStreamSource::newFromURL() Prevent passing null to fwrite.
  • (task T315892) composer.json: Pin phpunit to 8.5.28.
  • (task T313663) Do not compare byte-for-byte of serialized items in tests [php8.1].
  • objectcache: avoid php 8.1 argument type warnings in genericKeyFromComponents().
  • (task T317750) session: Fix broken SessionTest case due to PHPUnit dependency change.
  • ManualLogEntry: Don't pass null to trim() as PHP 8.1 whines.
  • (task T313663) Add a null check VueComponentParser to prevent php8.1 issues.
  • (task T313049) Bump wikimedia/parsoid to v0.15.1.
  • (task T318754) WebInstallerOptions::addPersonalizationOptions(): Close fieldset.
  • (task T318460) SpecialChangeEmail: Set default for returntoquery.
  • (task T318307) Update docs for HTMLFormField::validate() to permit all data types.
  • (task T316304, CVE-2022-41767) SECURITY: reassignEdits doesn't update results in an IP range check on Special:Contributions.
  • (task T309894, CVE-2022-41765) SECURITY: HTMLUserTextField exposes existence of hidden users.
  • (task T307278, CVE-2022-41766) SECURITY: On action=rollback the message "alreadyrolled" can leak revision deleted user name.

MediaWiki 1.38.2

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This is a security and maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.1

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  • Localisation updates.
  • (task T309426) Repair language selector for SVGs.
  • (task T310013) Fix default value for $wgShowEXIF and $wgUsePathInfo.
  • (task T308471) SECURITY: Escape welcomeuser message passed to showSuccessPage().
  • (task T308473) SECURITY: Escape contributions-title msg for use within page title.
  • (task T311272) Call parent constructor of AddSite maintenance script first.
  • MediaWiki: Don't eagerly initialize action name.
  • (task T311384, CVE-2022-27776) Updated guzzlehttp/guzzle from 7.4.1 to 7.4.5.
  • (task T289926) Avoid passing null to trim() in SkinTemplate.
  • (task T289879) Address deprecations for PHP 8.1.
  • (task T311473) rollbackEdits: Pass user identity to RollbackPage.
  • Upgrade wikimedia/remex-html from 3.0.1 to 3.0.2.
  • (task T311551) ShellboxClientFactory::getUrl(): Check if $this->key is null.
  • (task T311552) ChangesListSpecialPage: Don't pass null to FormatJson::decode().
  • (task T311569) FileBackend::isStoragePath() Handle being passed null.
  • (task T311544) Pass int to ApiUsageException::newWithMessage()'s $httpCode param.
  • (task T311678) SpecialEditWatchlist: Prevent passing null to strtolower().
  • (task T311554) ChangeTags: Return early in formatSummaryRow() if $tags === null.
  • Upgrade wikimedia/common-passwords from 0.3.0 to 0.4.0.

MediaWiki 1.38.1

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This is a maintenance release of the MediaWiki 1.38 branch.

Changes since MediaWiki 1.38.0

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  • (task T309860) Add justinrainbow/json-schema to vendor.
  • (task T309933) Drop PHP 7.2 support in MediaWiki 1.38; require 7.3.19.

MediaWiki 1.38.0

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Changes since MediaWiki 1.38.0-rc.1

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  • Localisation updates.
  • (task T309114) LocalFile::prerenderThumbnails: Limit the number of thumbnail jobs triggered.
  • (task T305779) phpunit: Support setting skin context in BundleSizeTest subclasses.
  • (task T309028) SECURITY: ApiEditPage: update title after redirects.
  • (task T308967) notifications: prevent log spam when invalid user object listed.
  • composer: Lock Parsoid version to specific 0.15.0 release.
  • (task T306362, task T308680) change-your-logo.svg: Resize to 135px square, re-crush, and manually minify.

MediaWiki 1.38.0-rc.1

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Changes since MediaWiki 1.38.0-rc.0

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  • Localisation updates.
  • (task T305028) Undeprecate EditPage::$textbox2.
  • (task T305635) LogActions is a map, not a list.
  • (task T306721) Add wikimedia/equivset to vendor; needed by bundled AbuseFilter.
  • (task T307284) Simplify TransactionManager::pendingWriteQueryDuration.
  • (task T307307) Add symfony/yaml to vendor.
  • Fix old_name in UserLogoutComplete hook.
  • REST: don't send stack trace in error responses.
  • (task T307998) SessionManager: stop storing an ObjectFactory instance.
  • (task T193565) UserGroupManager: Fix dbDomain in addUserToGroup() deferred update.

Upgrading notes for 1.38

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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 1.29.

Some specific notes for MediaWiki 1.38 upgrades are below:

  • (task T191740) The AbuseFilter extension is now bundled with MediaWiki. This is an anti-abuse feature that lets privileged users to set specific actions to be taken when actions by users, such as edits or file uploads, match certain criteria.
  • (task T232948) The Math extension is now bundled with MediaWiki. This is a content feature that lets users create mathematical formulæ, written in a sub-set of LaTeX and rendered in MathML with a fallback SVG image. By default, it will use Wikimedia's mathoid service to render each formula, but local rendering can be set up for network isolation or performance.
  • (task T191743) The Minerva skin is now bundled with MediaWiki. This is a simple, light-weight, and scalable skin that is particularly optimised for mobile use, and integrates well with the MobileFrontend extension (available separately), but can also be used as a regular desktop skin.

For notes on 1.37.x and older releases, see HISTORY.

Configuration changes for system administrators in 1.38

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New configuration

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  • (task T297708) $wgMaxExecutionTimeForExpensiveQueries - This setting can be used to control the maximum execution time for several expensive query pages (e.g. RecentChanges and UserContribs).
  • $wgBrowserFormatDetection – This setting allows overriding browsers' automatic detection and handling of formats. It's initially used to prevent auto-linking of possible telephone numbers in wiki pages' output in Safari on iOS; this can be re-enabled if you wish, or locally extended for other browsers' quirks.
  • (task T240685) $wgMetricsTarget, $wgMetricsFormat, $wgMetricsPrefix - These provide configuration for a new MetricsFactory service with support for the dogstatsd format, intended for integration with Prometheus integration.
  • $wgGroupInheritsPermissions – This setting allows inheriting permissions, both granted and revoked, from another group.
  • $wgForeignApiRepos – ForeignAPIRepo now has a apiMetadataExpiry option to control for how long file metadata is cached. Additionally the default changed from 1 hour to 4 hours.
  • $wgSkinsPreferred – This lets you set a list of preferred skins to be listed higher in Special:Preferences.
  • $wgWikiFarmSettingsDirectory – A directory that contains site-specific configuration files. Setting this will enable multi-tenant ("wiki farm") mode, causing site-specific settings to be loaded based on information from the web request. EXPERIMENTAL.
  • $wgWikiFarmSettingsExtension – The file extension to be used when looking up site-specific settings files in $wgWikiFarmSettingsDirectory, such as 'json' or 'yaml'. EXPERIMENTAL.
  • $wgWikiFarmSiteDetector – A callback function that returns the name of the wiki for the current request. This is used in multi-tenant ("wiki farm") mode to determine which settings file to load from $wgWikiFarmSettingsDirectory. EXPERIMENTAL.
  • $wgEnableRemoteBagOStuffTests – This replaces the environment variable PHPUNIT_USE_BAGOSTUFF.
  • (task T230211) $wgForceDeferredUpdatesPreSend – Force deferred updates to be run before sending a response to the client, instead of attempting to run them after sending the response. Setting this to true is useful for end-to-end testing, to ensure that the effects of a request are visible to any subsequent requests, even if they are made immediately after the first one. Note however that this does not ensure that database replication is complete, nor does it execute any jobs enqueued for later.
  • $wgTemplateLinksSchemaMigrationStage – Templatelinks table schema migration stage, for normalizing tl_namespace and tl_title fields.

Changed configuration

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  • $wgStyleDirectory and $wgExtensionDirectory – These are now set later, so can no longer be used within LocalSettings.php unless explicitly set in that file.
  • $wgFileBackends – This setting no longer takes 'fileJournal' as an option.
  • $wgMaxImageArea - This setting may now be set to false to disable size, checking before scaling. Extensions can still override its value by using the BitmapHandlerCheckImageArea hook.
  • $wgAjaxUploadDestCheck – This is now deprecated, and act as always-true.
  • $wgInterwikiCache – This no longer supports the string value for CDB files.
  • $wgParserOutputHooks – This is now deprecated; adjustments using this should be done with OutputPageParserOutputHook instead. (task T292321)
  • $wgExternalStores – This is newly documentated in includes/externalstore/README.md.

Removed configuration

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  • $wgShellLocale - This setting has been removed as it was a flawed solution to the problem of locale dependence, MediaWiki will now always set a locale of C.UTF-8 or C and works around the remaining problems of the C locale by not using escapeshellarg. This follows the direction of PHP 8.0, which sets a locale of C by default instead of respecting LC_CTYPE.
  • $wgLoggedOutMaxAge - Experiment removed, originally added in 1.35. (task T293848)
  • $wgIncludejQueryMigrate - Deprecated in 1.36. We only support jQuery v3.
  • $wgUseCategoryBrowser - This experimental feature has been removed. If you still need to use this feature, please see mw:Extension:CategoryExplorer.
  • $wgStyleSheetPath - alias for $wgStylePath, deprecated since 1.3 (2004).

User-facing changes in 1.38

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  • (task T284921) The "auto-number headings" feature was removed following a consultation, due to performance reasons.

New operator/developer features in 1.38

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  • EXPERIMENTAL: The environment variable MW_CONFIG_FILE can be used to specify the location of the settings file. This allows alternative settings files to be loaded depending on the environment. Settings files may be given as PHP files like the traditional LocalSettings.php file, or they may use JSON or YAML format. See https://www.mediawiki.org/wiki/Manual:YAML_settings_file_format
  • Added a deleteUserEmail maintenance script - This file enables the deletion of a given user's associated email address. It can be helpful for privacy-preserving operations.
  • The description array for constructing an HTMLForm now can use 'disable-if' to disable fields on condition easily, supported expressions are the same as 'hide-if'.
  • There is a new interface, IForeignRepoWithMWApi, to allows you to mark file repos provided by an extension as supporting making API queries against the foreign file repo so that extensions like TimedMediaHandler that depend on this can stop hard-coding looking for specific class names.
  • Added EXPERIMENTAL support for an easy to configure multi-tenant ("wiki farm") mode:
    • Settings for each site can be placed in a directory specified by $wgWikiFarmSettingsDirectory. Site detection is controlled by $wgWikiFarmSiteDetector and defaults to the requested host name. For example, setting $wgWikiFarmSettingsDirectory = "sites" would cause the settings for wiki.example.com to be loaded from "sites/wiki_example_com.yaml". WARNING: YAML files under the web root may be accessible to browsers, please take appropriate measures to protect them from access via HTTP.
  • Running QUnit tests for an individual test suite module is possible with `grunt qunit --qunit-component={componentName}`, where {componentName} is "MediaWiki" to run core's QUnit tests or the skin or extension name.
  • The 'mediawiki.mixins' module now has a `.user-select()` Less mixin.

External library changes in 1.38

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New external libraries

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  • symfony/yaml was promoted from development-only.

Changed external libraries

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  • Updated OOUI from v0.42.0 to v0.43.2.
  • Updated Vue from 2.6.11 to 3.2.23.
  • Updated WVUI from v0.3.0 to v0.4.0.
  • Updated composer/semver from 3.2.5 to 3.2.6.
  • Updated guzzlehttp/guzzle from 7.2.0 to 7.4.1.
  • Updated pear/mail_mime from 1.10.9 to 1.10.11.
  • Updated pear/net_smtp from 1.9.2 to 1.10.0.
  • Updated psr/log from 1.1.3 to 1.1.4.
  • Updated psy/psysh from 0.10.5 to 0.11.1.
  • Updated symfony/polyfill-php80 from 1.23.1 to 1.25.0.
  • Updated wikimedia/assert from 0.5.0 to 0.5.1.
  • Updated wikimedia/cdb from 1.4.1 to 2.0.0.
  • Updated wikimedia/ip-utils from 3.0.2 to 4.0.0.
  • Updated wikimedia/minify from 2.2.4 to 2.2.6.
  • Updated wikimedia/object-factory from 3.0.2 to 4.0.0.
  • Updated wikimedia/parsoid from v0.14.0-a14 to v0.15.0.
  • Updated wikimedia/purtle from 1.0.7 to 1.0.8.
  • Updated wikimedia/request-timeout from 1.1.0 to 1.2.0.
  • Updated wikimedia/shellbox from 2.0.0 to 3.0.0.
  • Updated wikimedia/wrappedstring from 3.2.0 to 4.0.1.
Changed development-only external libraries
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  • Updated QUnit from 2.16.0 to 2.18.0.
  • Updated composer/semver from 3.5.4 to 3.5.5.
  • Updated composer/spdx-licenses from 1.5.4 to 1.5.5.
  • Updated doctrine/dbal for PHP < 7.3 from 2.10.4 to 2.13.6.
  • Updated doctrine/dbal for PHP >= 7.3 from 3.0.0 to 3.1.5.

Removed external libraries

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  • jquery.jStorage, deprecated since MW 1.28; use "mediawiki.storage" instead.

Action API changes in 1.38

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  • New `deletetalk` parameter on action=delete that allows you to delete the associated talk page of a subject page.
  • New `variant` parameter for all API actions, for specifying language variant (akin to the existing `variant` parameter for index.php). Task task T117549.

Languages updated in 1.38

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MediaWiki supports over 400 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Phabricator reports.

  • (task T292166) Updated namespace names for the Lombard language.
  • (task T299201) Changed the autonym of the Angika language to अंगिका
  • (task T298309) Changed the autonym of the Abkhaz language to аԥсшәа
  • (task T302972) Changed the autonym of the Kirundi language to ikirundi
  • (task T220303) Show numbered lists with Burmese numerals in relevant languages
  • (task T291899) Added language support for Xiang Chinese (hsn).
  • (task T292612) Added language support for S'gaw Karen (ksw).
  • (task T293656) Added language support for Farefare (gur).
  • (task T294729) Added language support for Pa'O (blk).
  • (task T296286) Added language support for Skolt Sámi (sms).
  • (task T296612) Added language support for Makhuwa (vmw).
  • (task T296707) Added language support for Ga (gaa).
  • (task T297073) Added language support for Nanai (gld).
  • (task T297074) Added language support for Nawdm (nmz).
  • (task T298075) Added language support for Northern Thai (nod).
  • (task T298182) Added language support for Cape Verdean Creole (kea).
  • (task T298385) Added language support for Nheengatu (yrl).
  • (task T299329) Added language support for Fon (fon).
  • (task T300474) Added language support for Nkore (nyn).
  • (task T302556) Added language support for Pannonian Rusyn (rsk).

Breaking changes in 1.38

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  • (task T291008) The IP class, deprecated since 1.35 in favor of the IPUtils library, has been removed. The IP related regexes which were also deprecated in favor of the IPUtils library were also removed, IPUtils::RE_* should be used instead.
  • (task T293043) The MediaWikiIntegrationTestCase class alias 'MediaWikiTestCase' has been removed.
  • LinkCache::singleton(), deprecated since 1.28, has been removed.
  • RepoGroup::singleton(), ::destroySingletons() and setSingleton(), all deprecated since 1.34, have been removed.
  • The following methods from FileDeleteForm were removed:
    • ::__construct (the class is no longer newable)
    • ::execute()
    • ::haveDeletableFile()
    Use FileDeleteAction instead.
  • MessageCache::singleton(), deprecated since 1.34, has been removed.
  • LockManagerGroup::singleton() and ::destroySingletons(), both deprecated since 1.34, have been removed.
  • FileBackendGroup::singleton() and ::destroySingletons(), both deprecated since 1.35, have been removed.
  • TemplateParser used to support disabling the cache with a boolean parameter in its constructor. This was deprecated in 1.35 and has now been removed.
  • The ArticleUndeleteLogEntry hook, deprecated in 1.37, was removed.
  • The BeforeResetNotificationTimestamp hook, deprecated in 1.37, was removed.
  • The global function mimeTypeMatch() has been removed without a deprecation process.
  • The following JavaScript mw.config keys have been removed:
    • $wgCookiePrefix
    • $wgCookieDomain
    • $wgCookiePath
    • $wgCookieExpiration
    Use mw.cookie from the mediawiki.cookie module instead.
  • The signature of PageUpdater::markAsRevert method was changed. It has never been used outside of MediaWiki core.
  • If you want to use interwiki titles with HTMLTitleTextField, you now need to pass 'interwiki' => true. In 1.37, the default behavior was to let interwiki title through by default, logging a deprecation warning.
  • The `UndeleteForm::undelete` hook, deprecated in 1.37, was removed.
  • BagOStuff::setDebug(), deprecated since 1.36, has been removed.
  • The `jquery.mw-jump` ResourceLoader module was removed.
  • The `wgForeignUploadTargets` and `wgEnableUploads` configuration values were removed from mw.config. They had previously been documented as being included for internal use by the mediawiki.ForeignUpload module.
  • The `&$hasHistory` parameter to WikiPage::getAutoDeleteReason() and ContentHandler::getAutoDeleteReason() was hard-deprecated with no replacement.
  • Several Skin methods, which have emitted deprecation warnings since 1.36, have been removed. These include:
    • Skin::privacyLink()
    • Skin::aboutLink()
    • Skin::disclaimerLink()
      For these, instead use Skin::footerLink() to alter footer links.
    • Skin::getLogo()
      For this, use ResourceLoaderSkinModule::getAvailableLogos() instead.
    • Skin::getIndicatorsHTML()
      For this, use Skin::getIndicatorsData() instead.
    • Skin::subPageSubtitle()
      For this, use Skin::prepareSubtitle() instead.
    • Skin::makeVariablesScript()
      For this, use ResourceLoader::makeInlineScript() instead.
    • Skin::getAllowedSkins()
    • Skin::getSkinNames()
      For these, use SkinFactory::getAllowedSkins() or ::getInstalledSkins().
    • Skin::makeUrl()
    • Skin::getSearchLink()
    • Skin::mainPageLink()
  • Parser::getUser and ::mUser, as well as ParserOptions::getUser, deprecated since 1.37, has been removed.
  • Parser::$mStripState, deprecated in 1.35, has been made private. Use Parser::getStripState() instead.
  • The following deprecated features in blocks were removed:
    • DatabaseBlock constructor 'byText' property with blocker's name, use 'by' property with UserIdentity value instead.
    • DatabaseBlock constructor 'by' property with blocker's ID, use 'by' property with UserIdentity value instead.
    • DatabaseBlock::isWhitelistedFromAutoblocks, use ::isExemptedFromAutoblocks.
    • DatabaseBlock::setBlocker now only accepts UserIdentity.
    • AbstractBlock::getTargetAndType and ::getTarget, use ::getTargetName, ::getTargetUserIdentity and ::getType instead
  • The following functions, emitting deprecations since 1.37, have been removed:
    • Title::isWatchable()
    • WatchAction::doWatchOrUnwatch(), WatchAction::doWatch(), WatchAction::doUnwatch(), WatchAction::getWatchToken()
    • User::isWatched(), User::isTempWatched(), User::addWatch(), User::removeWatch()
  • ParserOptions::setTidy() that had no effect and was deprecated since 1.35 has been removed.
  • The "YAML" encoding option of EtcdConfig, has been removed without deprecation.
  • The constant ApiBase::PARAM_VALUE_LINKS, deprecated since 1.35 has been removed.
  • UserLoadOptions, UserSaveOptions and UserResetAllOptions hooks, deprecated since 1.37, were removed.
  • The experimental FileJournal system has been removed without deprecation. This includes the FileJournal abstract class, its implementation classes DBFileJournal and NullFileJournal, various minor getters and setters, and the option for the wiki configuration $wgFileBackends.
  • The return values for each `bind` function in checkboxHack.js has been changed from an object to a function. In addition, the `unbind` function has been removed. A deprecation process was assumed unnecessary as there were no known usages.
  • File::getUser, ::getImageSize, ArchivedFile::getRawDescription, ::getUser, ::getRawUser and ::getRawDescription, deprecated since 1.37, has been removed.
  • ShellboxHttpClient class has been removed without deprecation. It was an internal class used by ShellboxClientFactory.
  • The following hard deprecated User methods have been removed:
    • ::resetIdByNameCache,
    • ::getStubThreshold,
    • ::matchEditTokenNoSuffix,
    • ::changeableByGroup,
    • ::changeableGroups,
    • ::isAllowUsertalk,
    • ::getRights
    • ::isAllowUsertalk
    • ::isIP,
    • ::isIPRange,
    • ::isValidUserName,
    • ::isUsableName,
    • ::isCreatableName,
    • ::getCanonicalName,
    • ::addAutopromoteOnceGroups,
    • ::getDefaultOptions,
    • ::getDefaultOption,
    • ::getOptions,
    • ::getBoolOption,
    • ::getIntOption,
    • ::setOption
    • ::listOptionKinds
    • ::getOptionKinds,
    • ::resetOptions,
    • ::getEffectiveGroups,
    • ::getAutomaticGroups,
    • ::getFormerGroups
    • ::isLoggedIn
    • ::getFirstEditTimestamp
    • ::getLatestEditTimestamp
  • Http::$httpEngine, deprecated since 1.34, has been removed. The only available HTTP engine is now Guzzle. CurlHttpRequest and PhpHttpRequest classes were removed.
  • The UserRightsProxy class was deprecated. Pass the correct domain to UserGroupManagerFactory instead.
  • Parser option enableLimitReport was deprecated. The report is now generated post-parse and can be included by providing 'includeDebugInfo' option to ParserOutput::getText. Thus, ParserOptions::enableLimitReport and ::getEnableLimitReport methods were deprecated.
  • Ajax action that was deprecated in 1.27 now has been removed.
  • The following methods have been removed from IDatabase without deprecation as they were completely unused:
    • ::preCommitCallbacksPending()
    • ::pendingWriteRowsAffected()
    • ::getServerUptime()
    • ::maxListLen()
  • The following deprecated methods have been removed from IDatabase:
    • ::aggregateValue() soft-deprecated since 1.33
    • ::getTopologyRootMaster() since 1.37
    • ::masterPosWait() since 1.37
    • ::dataSeek() soft-deprecated since 1.37
    • ::numFields() soft-deprecated since 1.37
    • ::fieldName() soft-deprecated since 1.37
    • ::onTransactionIdle() soft-deprecated since 1.32
    • ::getMasterPos() since 1.37
  • DatabaseMysqlBase::fieldType() and DatabasePostgres::fieldType(), deprecated since 1.37, have been removed.
  • Database::assertIsWritableMaster(), deprecated since 1.37, has been removed.
  • ResultWrapper::getInternalResult(), soft-deprecated since 1.37 and ResultWrapper::unwrap(), deprecated since 1.37, have been removed.
  • Language::AS_AUTONYMS, deprecated since 1.34, has been removed. You can use the LanguageNameUtils::AUTONYMS constant instead.
  • Several Language class variables deprecated in 1.35 have been removed; they are each replaced by a constant, as listed after the arrow:
    • ::$mWeekdayMsgs → WEEKDAY_MESSAGES
    • ::$mWeekdayAbbrevMsg → WEEKDAY_ABBREVIATED_MESSAGES
    • ::$mMonthGenMsgs → MONTH_GENITIVE_MESSAGES
    • ::$mIranianCalendarMonthMsgs → IRANIAN_CALENDAR_MONTHS_MESSAGES
    • ::$mHebrewCalendarMonthMsgs → HEBREW_CALENDAR_MONTHS_MESSAGES
    • ::$mHebrewCalendarMonthGenMsgs → HEBREW_CALENDAR_MONTH_GENITIVE_MESSAGES
    • ::$mHijriCalendarMonthMsgs → HIJRI_CALENDAR_MONTH_MESSAGES
  • wfIncrStats, deprecated since 1.36, has been removed.
  • Profiler::profileIn and ::profileOut, deprecated in 1.33, has been removed.
  • IEditObject::AS_CANNOT_USE_CUSTOM_MODEL, deprecated in 1.35, was removed.
  • Several protected methods in EditPage were made private. None of these was used outside of EditPage itself. Since the class is not stable to extend, this change happened without a deprecation phase.
  • The following public methods in EditPage, unused externally, were made private:
    • ::getCancelLink()
    • ::isSupportedContentModel()
    • ::getParentRevId()
  • EditPage::setApiEditOverride() was marked as @internal for use by ApiEditPage only.
  • SelectQueryBuilder::straightJoin() was renamed to straightJoinOption().
  • The following deprecated methods have been removed from ILBFactory:
    • ::beginMasterChanges() since 1.37
    • ::commitMasterChanges() since 1.37
    • ::rollbackMasterChanges() since 1.37
    • ::hasMasterChanges() since 1.37
    • ::hasOrMadeRecentMasterChanges() since 1.37
  • The "groupLoadsByDB" option to LBFactoryMulti has been removed. Consider using "groupLoadsBySection" instead.
  • The following methods have been removed from ILoadBalancer without deprecation as they were completely unused:
    • ::waitForOne()
    • ::allowLagged()
    • ::forEachOpenReplicaConnection()
  • The following deprecated methods have been removed from ILoadBalancer:
    • ::getMasterPos() since 1.37
    • ::finalizeMasterChanges() since 1.37
    • ::approveMasterChanges() since 1.37
    • ::beginMasterChanges() since 1.37
    • ::commitMasterChanges() since 1.37
    • ::runMasterTransactionIdleCallbacks() since 1.37
    • ::runMasterTransactionListenerCallbacks() since 1.37
    • ::rollbackMasterChanges() since 1.37
    • ::flushMasterSnapshots() since 1.37
    • ::hasMasterConnection() since 1.37
    • ::hasMasterChanges() since 1.37
    • ::lastMasterChangeTimestamp() since 1.37
    • ::hasOrMadeRecentMasterChanges() since 1.37
    • ::pendingMasterChangeCallers() since 1.37
    • ::forEachOpenMasterConnection() since 1.37
    • ::waitForMasterPos() since 1.37
  • LoadBalancer::safeGetLag() which has been soft-deprecated since 1.34 has been removed.
  • The following properties of the EditPage class, deprecated since 1.35, were made private:
    • ::$deletedSinceEdit
    • ::$lastDelete
    • ::$mTokenOk
    • ::$mTriedSave
    • ::$incompleteForm
    • ::$tooBig
    • ::$missingComment
    • ::$missingSummary
    • ::$allowBlankSummary
    • ::$autoSumm
    • ::$mParserOutput
    • ::$hasPresetSummary
    • ::$minoredit
    • ::$watchthis
    • ::$recreate
    • ::$nosummaryparentRevId
    • ::$editintro
    • ::$scrolltop
    • ::$markAsBot
  • Special:ListFiles and Special:NewFiles no longer allows to search for parts of file names (option was not available for $wgMiserMode = true)
  • DBAccessBase, deprecated since 1.37, has been removed.
  • The UserNamePrefixSearch service no longer supports a UserIdentity parameter to search(), to check for a specific audience an Authority object is required.
  • The methods CoreParserFunctions::register() and CoreTagHooks::register() have been marked @internal, and had a seconds parameter added. These methods are intended for use in Parser's constructor, and are not used by any known extension.
  • LoadBalancer::openConnection(), deprecated since 1.34, has been removed.
  • Skin::preloadExistence has been made private. There is no known usages outside of MediaWiki core.

Deprecations in 1.38

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  • The MWGrants class is deprecated in favor of the new GrantsInfo and GrantsLocalization services.
  • The global functions wfReadOnly() and wfReadOnlyReason() have been deprecated in favor of the ReadOnlyMode service.
  • PageProps::getInstance() has been deprecated. Use MediaWikiServices::getPageProps() instead.
  • User::setOption(), deprecated since 1.35, now emits deprecation warnings.
  • Linker::formatComment(), ::formatLinksInComment(), ::commentBlock() and revComment() were deprecated. Use the new CommentFormatter service.
  • Several Skin methods have been deprecated.
    • Skin::setSearchPageTitle(), Skin::getSearchPageTitle(). For these, use SpecialPage::newSearchPage() or associated user preference instead.
    • Skin::getSkinStylePath now triggers deprecation warnings. Direct string path should be used instead.
    • SkinTemplate::getPersonalToolsList(), deprecated since 1.35, now emits deprecation warnings.
    • In preparation for SkinTemplate::getPortletData becoming a private function, extending the method is no longer permitted. Use SkinTemplate::getTemplateData instead.
    • SkinTemplate::buildContentNavigationUrls is now deprecated. Skins can use the runOnSkinTemplateNavigationHooks method or the SkinTemplateNavigation__Universal hook if they need access to this data.
  • Usage of several template data keys in QuickTemplate are now deprecated:
    • searchaction, poweredbyico, copyrightico
  • DatabaseBlock::purgeExpired(), deprecated since 1.36, now emits deprecation warnings.
  • The following methods from the User class now trigger deprecation warnings:
    • ::blockedBy
    • ::getBlockId
  • Content::getParserOutput and AbstractContent::fillParserOutput was hard-deprecated, use ContentRenderer::getParserOutput instead. Extensions defining a content model should override ContentHandler::fillParserOutput.
  • Title::newFromIDs and TitleFactory::newFromIDs have been hard deprecated. Use a PageSelectQueryBuilder from a PageStore instead.
  • Content::getRedirectChain() and Content::getUltimateRedirectTarget() have been deprecated with no replacement because support for $wgMaxRedirect will be removed completely. See task T296430 for more information.
  • WikiPage::getRedirectTarget() has been deprecated. Use the equivalent RedirectLookup::getRedirectTarget() instead.
  • Article::doDelete() was deprecated. Use WikiPage::doDeleteArticleReal if you only need to delete the article. If you also need things to happen with OutputPage, you may want to check the hooks in DeleteAction instead.
  • Instantiating the MessageContent class now emits deprecation notices.
  • Message::content() now triggers deprecation warnings.
  • Parser::setDefaultSort(), Parser::getDefaultSort(), and Parser::getCustomDefaultSort() now trigger deprecation warnings. Use ParserOutput::{get,set}PageProperty('defaultsort') instead.
  • The following methods from the ParserOutput class now emit deprecation warnings:
    • ::hideNewSection() - use ::setHideNewSection()
    • ::preventClickjacking() - use ::{get,set}PreventClickjacking()
    • ::getProperty() - use ::getPageProperty() (return value changed)
    • ::setProperty() - use ::setPageProperty()
    • ::unsetProperty() - use ::unsetPageProperties()
    • ::getProperties() - use ::getPageProperties()
    • ::getCategoryLinks() - use ::getCategoryNames()
    • ::setCategoryLinks() - use ::setCategories()
    • ::addTrackingCategory() - use Parser::addTrackingCategory() or TrackingCategories::addTrackingCategory()
    • ::addWarning() - use ::addWarningMsg()
    • ::hasDynamicContent() - use ::hasReducedExpiry()
  • The following methods from the ParserOutput class were deprecated:
    • ::getFlag() - use ::getOutputFlag()
    • ::setFlag() - use ::setOutputFlag()
    • ::getAllFlags() - this method is now marked @internal
    • ::addJsConfigVars() - use ::setJsConfigVar() or ::appendJsConfigVar()
    • ::addOutputHook() / ::getOutputHooks() - these hooks should be migrated to use the OutputPageParserOutput hook instead
  • The use of ParserOutput::setExtensionData() to overwrite previous values stored under a given key has been deprecated; use the new ::appendExtensionData() to collect multiple values in the ParserOutput rather than destructively updating stored values. (task T300981)
  • The signatures of the following methods from the ParserOutput class were narrowed, restricting the permitted argument types:
    • ::addModules() - if you formerly passed a string, pass an array with the string as the only element.
    • ::addModuleStyles() - if you formerly passed a string, pass an array with the string as the only element.
  • Access to the following public or protected properties of OutputPage was deprecated; they will be made private or removed in a future release. Use accessor functions instead.
    • ::$mCategoryLinks
    • ::$mCategories
    • ::$mIndicators
    • ::$mHeadItems
    • ::$mModules
    • ::$mModuleStyles
    • ::$mJsConfigVars
    • ::$mTemplateIds
    • ::$mEnableClientCache
    • ::$mNewSectionLink
    • ::$mHideNewSectionLink
    • ::$mNoGallery
  • The following methods were deprecated; use ::setPreventClickjacking(..) instead:
    • OutputPage::preventClickjacking()
    • OutputPage::allowClickjacking()
    • ImageHistoryList::preventClickjacking()
    • ImageHistoryPseudoPager::preventClickjacking()
    • ContribsPager::preventClickjacking()
  • OutputPage::enableClientCache() was deprecated, because it is universally used to do the opposite -- use OutputPage::disableClientCache() instead.
  • Sanitizer::removeHTMLtags() has been deprecated. Its output can include unbalanced or ill-formed HTML and thus external callers may be misled about how to safely incorporate its output into a page. It is recommended to use the new Sanitizer::removeSomeTags() method instead, which will always return balanced HTML.
  • EventRelayerKafka was deprecated. To use $wgEventRelayerConfig with Kafka, add a similar class to your code.
  • MediaWiki\Logger\Monolog\KafkaHandler was deprecated. Consider using $wgMWLoggerDefaultSpi with SyslogHandler, or to use Kafka, add a similar Monolog handler class to your code.
  • Collation::singleton() and ::factory() now trigger deprecation warnings.
  • The following methods in MWNamespace, all deprecated since 1.34, now emit deprecation warnings:
    • isTalk()
    • exists()
    • subjectEquals()
    • getCanonicalNamespaces()
    • getCanonicalName()
    • getCanonicalIndex()
    • getValidNamespaces()
    • isContent()
    • hasSubpages()
    • getContentNamespaces()
  • Return values in the parameter $pageLang of the hook PageContentLanguage with other types than a Language object, deprecated since 1.33, now emits deprecation warnings.
  • Passing a db to BlockRestrictionStore::loadByBlockId() is deprecated. BlockRestrictionStoreFactory should be used to fetch a correct BlockRestrictionStore instead.
  • All external access to ParserOutput and CacheTime classes properties will now emit deprecation warnings. Use getters and setters instead.
  • The custom jQuery event `watchpage.mw` emitted on #ca-watch and #ca-unwatch is now deprecated in favour of the new `wikipage.watchlistChange` hook.
  • The global function wfLogProfilingData() has been deprecated without a replacement. The logic has been moved to the MediaWiki class.
  • The "trace" option of SectionProfiler has been deprecated.
  • The PageArchive class has had several methods deprecated. The replacements are as follows:
    • Use UndeletePage instead of ::undeleteAsUser(), ::getFileStatus() and ::getRevisionStatus().
    • Use the respective methods of the new ArchivedRevisionLookup service instead of ::listRevisions, ::getRevisionRecordByTimestamp, ::getArchivedRevisionRecord, ::getPreviousRevisionRecord and ::getLastRevisionId.
    • Use ArchivedRevisionLookup::hasArchivedRevisions instead of ::isDeleted.
  • PageUpdater::isUnchanged() has been deprecated, use wasRevisionCreated() instead.
  • The `mediawiki.pager.tablePager` module was deprecated in favor of the more generic `mediawiki.pager.styles`.
  • wfGetCache() and wfGetMainCache(), both deprecated since 1.32, now emit deprecation warnings.
  • LinkCache::addGoodLinkObj() has been hard deprecated.
  • ApiStashEdit::parseAndStash has been hard deprecated.
  • Content::prepareSave was hard-deprecated, now emits deprecation warnings. Use ContentHandler::validateSave instead.
  • The hooks LinksUpdateAfterInsert and LinksUpdateConstructed were deprecated.
  • Access to all public properties in LinksUpdate was deprecated.
  • The global variable $IP has been deprecated for use in application logic. It will remain available for use in LocalSettings.php for now, though $wgBaseDirectory is preferred. Application logic should use the BaseDirectory setting from the main config. Tests and framework code that need to function without MediaWiki being fully initialized should use the MW_INSTALL_PATH constant.
  • The global function wfWikiID(), deprecated since 1.35, now emits deprecation warnings.
  • AbstractBlock::getBy() now takes a wikiId as a parameter and emits deprecation warnings in case of cross-wiki accesses.
  • The `button` parameter for `bindUpdateAriaExpandedOnInput` and `updateAriaExpanded` in checkboxHack.js have been deprecated. `bindToggleOnSpaceEnter` has also been deprecated in favor of `bindToggleOnEnter`.
  • IDatabase::lockTables() and IDatabase::unlockTables() have been deprecated with no replacement. Instead, callers should batch updates into atomic transactions, using FOR UPDATE for SELECT queries.
  • EditPage::addNewLineAtEnd() was deprecated; use TextboxBuilder::addNewLineAtEnd instead.
  • EditPage::getCopywarn() was deprecated; use EditPage::getCopyrightWarning instead.
  • EditPage::getCopyrightWarning() without passing a MessageLocalizer parameter has been deprecated.
  • Passing the $formCallback parameter to EditPage::showEditForm, deprecated in 1.25 and previously emitting a warn notice, now emits a deprecation notice.
  • EditPage::$action has been deprecated.
  • The following properties in EditPage now emit deprecation notices when used from another class:
    • mArticle (use ::getArticle() instead)
    • mTitle (use ::getTitle() instead)
    • isNew (no replacement)
    • allowBlankArticle (no replacement)
    • selfRedirect (no replacement)
    • allowSelfRedirect (no replacement)
    • diff (no replacement)
    • textbox2 (no replacement)
    • undoAfter (no replacement)
    • edit (no replacement)
    • contentLength (no replacement)
  • The HTMLForm methods getPreText, setPreText, addPreText, getPostText, setPostText, addPostText, getHeaderText, setHeaderText, addHeaderText, getFooterText, setFooterText and addFooterText have been renamed to getPreHtml, setPreHtml, addPreHtml, getPostHtml, setPostHtml, addPostHtml, getHeaderHtml, setHeaderHtml, addHeaderHtml, getFooterHtml, setFooterHtml and addFooterHtml respectively.
  • The FormSpecialPage methods preText and postText have been renamed to preHtml and postHtml respectively.
  • Article::doDelete, deprecated in 1.37, now emits deprecation notices.
  • The following Less mediawiki.mixins have been deprecated:
    • .background-image()
    • .list-style-image()
  • Category::getPageCount now takes a parameter. Category::COUNT_ALL_MEMBERS return count of all members while Category::COUNT_CONTENT_PAGES return that of content pages. For the former behavior use Category::getMemberCount()
  • Using `new HTMLForm( … )` or `HTMLForm::factory( … )` without the $context parameter is now deprecated.
  • BagOStuff::incr() and BagOStuff::decr() are now deprecated.
  • Action::exists() and ActionFactory::actionExists() are deprecated, use (bool)ActionFactory::getAction().

Other changes in 1.38

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  • The following things were changed in the file deletion form:
    • The name and ID of the submit button are now `wpConfirmB`, not `mw-filedelete-submit`
    • The ID of the form is now `deleteconfirm`, not `mw-img-deleteconfirm`
    • The `mw-filedelete-editreasons` class was replaced with `mw-delete-editreasons`
    The goal of these changes is to make the HTML more similar to that of normal page deletion.
  • ParserOptions created with ::newFrom* or ::newCanonical are now identical.
  • MediaWiki initialization order have been changed to load vendor autoload earlier. This means that extensions that are installed via composer and execute code upon autoloading can not depend on any MediaWiki classes, constants or globals in that code.
  • The source of truth for configuration defaults is now the MainConfigSchema class. DefaultSettings.php still exists for backwards compatibility. A PHP file generated for optimized loading will be used in Setup.php to initialize configuration variables. Setup.php can be made to load DefaultSettings.php as before by setting MW_USE_LEGACY_DEFAULT_SETTINGS as an environment variable (e.g. via SetEnv in htaccess) or a PHP constant (e.g. via auto_prepend_file in php.ini).

Compatibility

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MediaWiki 1.38 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

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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

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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

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

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