RELEASE-NOTES-1.34

   1 = MediaWiki 1.34 =
   2
   3 == MediaWiki 1.34.0-PRERELEASE ==
   4
   5 THIS IS NOT A RELEASE YET
   6
   7 MediaWiki 1.34 is an alpha-quality development branch, and is not recommended
   8 for use in production.
   9
  10 == Upgrading notes for 1.34 ==
  11 1.34 has several database changes since 1.33, and will not work without schema
  12 updates. Note that due to changes to some very large tables like the revision
  13 table, the schema update may take quite long (minutes on a medium sized site,
  14 many hours on a large site).
  15
  16 Don't forget to always back up your database before upgrading!
  17
  18 See the file UPGRADE for more detailed upgrade instructions, including
  19 important information when upgrading from versions prior to 1.11.
  20
  21 Some specific notes for MediaWiki 1.34 upgrades are below:
  22
  23 * …
  24
  25 For notes on 1.33.x and older releases, see HISTORY.
  26
  27 === Configuration changes for system administrators in 1.34 ===
  28
  29 ==== New configuration ====
  30 * $wgAllowExternalReqID (T201409) - This configuration setting controls whether
  31   Mediawiki accepts the request ID set by the incoming request via the
  32   `X-Request-Id` header. If set to `true`, that value will be used throughout
  33   the code as the request identificator. Otherwise, the sent header will be
  34   ignored and the request ID will either be taken from Apache's mod_unique
  35   module or will be generated by Mediawiki itself (depending on the set-up).
  36 * $wgEnableSpecialMute (T218265) - This configuration controls whether
  37   Special:Mute is available and whether to include a link to it on emails
  38   originating from Special:Email.
  39
  40 ==== Changed configuration ====
  41 * $wgUseCdn, $wgCdnServers, $wgCdnServersNoPurge, and $wgCdnMaxAge – These four
  42   CDN-related config variables have been renamed from being specific to Squid –
  43   they were previously $wgUseSquid, $wgSquidServers, $wgSquidServersNoPurge, and
  44   $wgSquidMaxage respectively. This aligns them with the related existing
  45   variable $wgCdnMaxageLagged. The previous configuration variable names are
  46   deprecated, but will be used as the fall back if they are still set.
  47   Note that wgSquidPurgeUseHostHeader has not been renamed, as it is deprecated.
  48 * (T27707) File type checks for image uploads have been relaxed to allow files
  49   containing some HTML markup in metadata. As a result, the $wgAllowTitlesInSVG
  50   setting is no longer applied and is now always true. Note that MSIE 7 may
  51   still be able to misinterpret certain malformed PNG files as HTML.
  52 * Introduced $wgVerifyMimeTypeIE to allow disabling the MSIE 6/7 file type
  53   detection heuristic on upload, which is more conservative than the checks
  54   that were changed above.
  55 * …
  56
  57 ==== Removed configuration ====
  58 * $wgWikiDiff2MovedParagraphDetectionCutoff — If you still want a custom change
  59   size threshold, please specify in php.ini, using the configuration variable
  60   wikidiff2.moved_paragraph_detection_cutoff.
  61 * $wgDebugPrintHttpHeaders - The default of including HTTP headers in the
  62   debug log channel is no longer configurable. The debug log itself remains
  63   configurable via $wgDebugLogFile.
  64
  65 === New user-facing features in 1.34 ===
  66 * Special:Mute has been added as a quick way for users to block unwanted emails
  67   from other users originating from Special:EmailUser.
  68
  69 === New developer features in 1.34 ===
  70 * The ImgAuthModifyHeaders hook was added to img_auth.php to allow modification
  71   of headers in private wikis.
  72 * Language::formatTimePeriod now supports the new 'avoidhours' option to output
  73   strings like "5 days ago" instead of "5 days 13 hours ago".
  74
  75 === External library changes in 1.34 ===
  76
  77 ==== New external libraries ====
  78 * …
  79
  80 ==== Changed external libraries ====
  81 * Updated Mustache from 1.0.0 to v3.0.1.
  82 * Updated OOUI from v0.31.3 to v0.33.2.
  83 * Updated composer/semver from 1.4.2 to 1.5.0.
  84 * Updated composer/spdx-licenses from 1.4.0 to 1.5.1 (dev-only).
  85 * Updated mediawiki/codesniffer from 25.0.0 to 26.0.0 (dev-only).
  86 * Updated cssjanus/cssjanus from 1.2.1 to 1.3.0.
  87 * Updated wikimedia/at-ease from 1.2.0 to 2.0.0.
  88 * Updated wikimedia/remex-html from 2.0.1 to 2.0.3.
  89 * Updated monolog/monolog from 1.22.1 to 1.24.0 (dev-only).
  90 * Updated wikimedia/object-factory from 1.0.0 to 2.1.0.
  91 * Updated wikimedia/timestamp from 2.2.0 to 3.0.0.
  92 * Updated wikimedia/xmp-reader from 0.6.2 to 0.6.3.
  93 * Updated mediawiki/mediawiki-phan-config from 0.6.0 to 0.6.1 (dev-only).
  94 * …
  95
  96 ==== Removed external libraries ====
  97 * The jquery.async module, deprecated in 1.33, was removed.
  98 * …
  99
 100 === Bug fixes in 1.34 ===
 101 * (T222529) If a log entry or page revision is recorded in the database with an
 102   empty username, attempting to display it will log an error and return a "no
 103   username available" to the user instead of silently displaying nothing or
 104   invalid links.
 105
 106 === Action API changes in 1.34 ===
 107 * The 'recenteditcount' response property from action=query list=allusers,
 108   deprecated in 1.25, has been removed.
 109
 110 === Action API internal changes in 1.34 ===
 111 * …
 112
 113 === Languages updated in 1.34 ===
 114 MediaWiki supports over 350 languages. Many localisations are updated regularly.
 115 Below only new and removed languages are listed, as well as changes to languages
 116 because of Phabricator reports.
 117
 118 * (T152908) Added language support for N'Ko (nqo).
 119
 120 === Breaking changes in 1.34 ===
 121 * The global functions wfSuppressWarnings and wfRestoreWarnings, deprecated in
 122   1.26, have been removed. Use Wikimedia\AtEase\AtEase::suppressWarnings() and
 123   Wikimedia\AtEase\AtEase::restoreWarnings() directly.
 124 * Preferences class, deprecated in 1.31, has been removed.
 125 * The following parts of code, deprecated in 1.32, were removed in favor of
 126   built-in PHP functions:
 127   * CryptRand class
 128   * CryptRand service
 129   * Functions of the MWCryptRand class: singleton(), wasStrong() and generate().
 130 * Language::setCode, deprecated in 1.32, was removed. Use Language::factory to
 131   create a new Language object with a different language code.
 132 * MWNamespace::clearCaches() has been removed.  So has the $rebuild parameter
 133   to MWNamespace::getCanonicalNamespaces(), which was deprecated since 1.31.
 134   Instead, reset services, such as by calling $this->overrideMwServices() (if
 135   your test extends MediaWikiTestCase). Services will generally not pick up
 136   configuration changes from after they were created, so you must reset
 137   services after any configuration change. Even if your code works now, it is
 138   likely to break in future versions as more code is moved to services.
 139 * The ill-defined "DatabaseOraclePostInit" hook has been removed.
 140 * PreferencesFormLegacy and PreferencesForm classes, deprecated in 1.32, have
 141   been removed.
 142 * ObjectFactory class, deprecated in 1.31, has been removed.
 143 * HWLDFWordAccumudlator class, deprecated in 1.28, has been removed.
 144 * XMPInfo, XMPReader and XMPValidate, deprecated in 1.32, have been removed.
 145 * The RedirectSpecialPage::execute method could sometimes return a Title object.
 146   This behavior was removed, and the method now matches the parent signature
 147   (SpecialPage::execute) which is to return HTML string or void.
 148   To obtain the destination title, use RedirectSpecialPage::getRedirect.
 149 * The 'recenteditcount' response property from action API action=query
 150   list=allusers, deprecated in 1.25, has been removed.
 151 * SearchEngine::userNamespaces(), SearchEngine::namespacesAsText(),
 152   SearchEngine::create(), SearchEngine::getSearchTypes() and
 153   SearchEngine::getNearMatch(), methods deprecated in 1.27, have been removed.
 154 * FileRepo::streamFile(), deprecated in 1.26, has been removed.
 155 * User::randomPassword() method, deprecated in 1.27, have been removed.
 156 * MWNamespace::canTalk(), deprecated in 1.30, have been removed.
 157 * Parser class property $mUniqPrefix, deprecated in 1.26, has been removed.
 158 * wfArrayFilter() and wfArrayFilterByKey(), deprecated in 1.32, have been
 159   removed.
 160 * wfMakeUrlIndexes() function, deprecated in 1.33, have been removed.
 161 * Method signatures in WatchedItemQueryServiceExtension have changed from taking
 162   User objects to taking UserIdentity objects. Extensions implementing this
 163   interface need to be changed accordingly.
 164 * User::getGroupPage() and ::makeGroupLinkHTML(), deprecated in 1.29, have been
 165   removed. Use UserGroupMembership::getGroupPage and ::getLink instead.
 166 * User::makeGroupLinkWiki(), deprecated in 1.29, has been removed. Use
 167   UserGroupMembership::getLink() instead.
 168 * SavepointPostgres, deprecated in 1.31, has been removed.
 169 * OutputPage::enableSectionEditLinks(), OutputPage::sectionEditLinksEnabled(),
 170   ParserOptions::getEditSection(), ParserOptions::setEditSection(), and
 171   ParserOutput::getEditSectionTokens, ::getTOCEnabled, ::setEditSectionTokens,
 172   and ::setTOCEnabled, deprecated in 1.31, have been removed.
 173 * EditPage::safeUnicodeInput() and ::safeUnicodeOutput(), deprecated in 1.30,
 174   have been removed.
 175 * Four methods in OutputPage, deprecated in 1.32, have been removed. You should
 176   use OutputPage::showFatalError or throw a FatalError instead. The methods are
 177   ::showFileCopyError(), ::showFileRenameError(), ::showFileDeleteError(), and
 178   ::showFileNotFoundError().
 179 * ApiBase::truncateArray(), deprecated in 1.32, has been removed.
 180 * IcuCollation::getICUVersion(), deprecated in 1.32, has been removed. Use PHP's
 181   INTL_ICU_VERSION constant directly.
 182 * HTMLForm::setSubmitProgressive(), deprecated in 1.32, has been removed.
 183 * ResourceLoaderStartUpModules::getStartupModules() and ::getLegacyModules(),
 184   both deprecated in 1.32, have been removed.
 185 * BaseTemplate::msgHtml() and QuickTemplate::msgHtml(), deprecated in 1.32, have
 186   been removed. Use ->msg() or ->getMsg() instead.
 187 * WatchAction::getUnwatchToken(), deprecated in 1.32, has been removed. Instead,
 188   use WatchAction::getWatchToken() with action 'unwatch' directly.
 189 * Language::initEncoding(), ::recodeForEdit(), and recodeInput(), deprecated in
 190   1.28, have been removed.
 191 * PageArchive::getTextFromRow(), ::listAllPages(), and ::getLastRevisionText(),
 192   deprecated in 1.32, have been removed.
 193 * OutputPage::getModuleScripts(), ParserOutput::getModuleScripts(), deprecated
 194   in 1.33, have been removed.
 195 * User::getPasswordValidity(), deprecated in 1.33, has been removed.
 196 * ApiQueryBase::prepareUrlQuerySearchString(), deprecated in 1.33, has been
 197   removed.
 198 * ChangeTags::purgeTagUsageCache(), deprecated in 1.33, has been removed.
 199 * JobQueueGroup::pushLazyJobs(), deprecated in 1.33, has been removed.
 200 * MediaWikiTestCase::stashMwGlobals(), deprecated in 1.32, has been removed.
 201 * SearchEngine::transformSearchTerm(), deprecated in 1.32, has been removed.
 202 * The Block typehint only refers to blocks stored in the database. It should be
 203   updated to AbstractBlock in cases where any type of block could be expected.
 204 * FileRepoStatus, deprecated in 1.25, has been removed.
 205 * The LegacyHookPreAuthenticationProvider class, deprecated since its creation
 206   in 1.27, has been removed.
 207 * IP::isValidBlock(), deprecated in 1.30, has been removed.
 208 * WikiPage::prepareContentForEdit now doesn't accept an integer for $revision,
 209   was deprecated in 1.25.
 210 * The jquery.byteLength module, deprecated in 1.31, was removed.
 211   Use the mediawiki.String module instead.
 212 * mw.language.specialCharacters, deprecated in 1.33, has been removed.
 213   Use require( 'mediawiki.language.specialCharacters' ) instead.
 214 * EditPage::submit(), deprecated in 1.29, has been removed. Use $this->edit()
 215   directly.
 216 * HTMLForm::getErrors(), deprecated in 1.28, has been removed. Use
 217   getErrorsOrWarnings() instead.
 218 * SpecialPage::getTitle(), deprecated in 1.23, has been removed. Use
 219   SpecialPage::getPageTitle() instead.
 220 * jquery.ui.effect-bounce, jquery.ui.effect-explode, jquery.ui.effect-fold
 221   jquery.ui.effect-pulsate, jquery.ui.effect-slide, jquery.ui.effect-transfer,
 222   which are no longer used, have now been removed.
 223 * SpecialEmailUser::validateTarget(), ::getTarget() without a sender/user
 224   specified, deprecated in 1.30, have been removed.
 225 * BufferingStatsdDataFactory::getBuffer(), deprecated in 1.30, has been removed.
 226 * The constant DB_SLAVE, deprecated in 1.28, has been removed. Use DB_REPLICA.
 227 * The constants NS_IMAGE and NS_IMAGE_TALK, deprecated in 1.14, have been
 228   removed. Use NS_FILE and NS_FILE_TALK respectively.
 229 * Replacer, DoubleReplacer, HashtableReplacer and RegexlikeReplacer
 230   (deprecated in 1.32) have been removed. Closures should be used instead.
 231 * OutputPage::addWikiText(), ::addWikiTextWithTitle(), ::addWikiTextTitleTidy(),
 232   ::addWikiTextTidy(), ::addWikiTextTitle(), deprecated in 1.32, have been
 233   removed.
 234 * The $wgUseKeyHeader configuration option and the OutputPage::getKeyHeader()
 235   method, deprecated in 1.32, have been removed.
 236 * WebInstallerOutput::addWikiText(), deprecated in 1.32, has been removed.
 237 * Parser::fetchFile(), deprecated in 1.32, has been removed. Use the method
 238   Parser::fetchFileAndTitle() instead.
 239 * The global function wfBCP47, deprecated in 1.31, has been removed.
 240 * wfCountDown() function, deprecated in 1.31, has been removed. Use
 241   \Maintenance::countDown() method instead.
 242 * OutputPage::wrapWikiMsg() no longer accepts an options parameter. This was
 243   deprecated since 1.20.
 244 * Skin::outputPage() no longer accepts a context. This was deprecated in 1.20.
 245 * Linker::link() no longer accepts a string for the query array, as was
 246   deprecated in 1.20.
 247 * PrefixSearch::titleSearch(), deprecated in 1.23, has been removed. Use the
 248   SearchEngine::defaultPrefixSearch or ::completionSearch() methods instead.
 249 * The UserRights hook, deprecated in 1.26, has been removed. Instead, use the
 250   UserGroupsChanged hook.
 251 * Skin::getDefaultInstance(), deprecated in 1.27, has been removed. Get the
 252   instance from MediaWikiServices instead.
 253 * The UserLoadFromSession hook, deprecated in 1.27, has been removed.
 254 * The wfResetSessionID global function, deprecated in 1.27, has been removed.
 255   Use MediaWiki\Session\SessionManager instead.
 256 * The wfGetLBFactory global function, deprecated in 1.27, has been removed.
 257   Use MediaWikiServices::getInstance()->getDBLoadBalancerFactory().
 258 * The internal method OutputPage->addScriptFile() will no longer silently drop
 259   calls that use an invalid path (i.e., something other than an absolute path,
 260   protocol-relative URL, or full scheme URL), and will instead pass them to the
 261   client where they will likely 404. This usage was deprecated in 1.24.
 262 * Database::reportConnectionError, deprecated in 1.32, has been removed.
 263 * APIEditBeforeSave hook, deprecated in 1.28, has been removed. Please see
 264   EditFilterMergedContent hook for an alternative way to use this feature.
 265 * API module methods getDescription(), getParamDescription(), & getExamples(),
 266   all deprecated in 1.25 and ignored, have been removed.
 267 * The API module method getDescriptionMessage(), deprecated in 1.30, has been
 268   removed.
 269 * The JavaScript global variable wgLoadScript has been removed. Use
 270   mw.util.wikiScript( 'load' ) instead.
 271 * ResourceLoader no longer creates the 'mw.legacy' placeholder object. It has
 272   been unused since 1.16 and was deprecated in 1.22. To deprecate a property
 273   in JavaScript, use mw.log.deprecate() instead.
 274 * The 'user.groups' module, deprecated in 1.28, was removed.
 275   Use the 'user' module instead.
 276 * The ability to override User::$mRights has been removed.
 277 * Previously, when iterating ResultWrapper with foreach() or a similar
 278   construct, the range of the index was 1..numRows. This has been fixed to be
 279   0..(numRows-1).
 280 * The ChangePasswordForm hook, deprecated in 1.27, has been removed. Use the
 281   AuthChangeFormFields hook or security levels instead.
 282 * WikiMap::getWikiIdFromDomain(), deprecated in 1.33, has been removed.
 283   Use WikiMap::getWikiIdFromDbDomain() instead.
 284 * The config variables $wgHtml5, $wgJsMimeType, and $wgXhtmlDefaultNamespace,
 285   which were deprecated and ignored by core since 1.22, are no longer set to any
 286   value, and SkinTemplate no longer emits a 'jsmimetype' key. Any extensions not
 287   updated since 2013 to cope with this deprecation may now break.
 288 * (T222637) Passing ResourceLoaderModule objects to ResourceLoader::register()
 289   or $wgResourceModules is no longer supported.
 290   Use the 'class' or 'factory' option of the array format instead.
 291 * The parameter $lang of the functions generateTOC and tocList in Linker and
 292   DummyLinker must be in type Language when present. Other types are
 293   deprecated since 1.33.
 294 * The static properties mw.Api.errors and mw.Api.warnings, deprecated in 1.29,
 295   have been removed.
 296 * …
 297
 298 === Deprecations in 1.34 ===
 299 * The MWNamespace class is deprecated. Use NamespaceInfo.
 300 * ExtensionRegistry->load() is deprecated, as it breaks dependency checking.
 301   Instead, use ->queue().
 302 * User::isBlocked() is deprecated since it does not tell you if the user is
 303   blocked from editing a particular page. Use User::getBlock() or
 304   PermissionManager::isBlockedFrom() or PermissionManager::userCan() instead.
 305 * User::isLocallyBlockedProxy and User::inDnsBlacklist are deprecated and moved
 306   to the BlockManager as private helper methods.
 307 * User::isDnsBlacklisted is deprecated. Use BlockManager::isDnsBlacklisted
 308   instead.
 309 * The Config argument to ChangesListSpecialPage::checkStructuredFilterUiEnabled
 310   is deprecated. Pass only the User argument.
 311 * WatchedItem::getUser is deprecated. Use getUserIdentity.
 312 * Passing a Title as the first parameter to the getTimestampById method of
 313   RevisionStore is deprecated. Omit it, passing only the remaining parameters.
 314 * Title::getPreviousRevisionId and Title::getNextRevisionId are deprecated. Use
 315   RevisionLookup::getPreviousRevision and RevisionLookup::getNextRevision.
 316 * The Title parameter to RevisionLookup::getPreviousRevision and
 317   RevisionLookup::getNextRevision is deprecated and should be omitted.
 318 * MWHttpRequest::factory is deprecated. Use HttpRequestFactory.
 319 * The Http class is deprecated. For the request, get, and post methods, use
 320   HttpRequestFactory. For isValidURI, use MWHttpRequest::isValidURI.  For
 321   getProxy, use (string)$wgHTTPProxy. For createMultiClient, construct a
 322   MultiHttpClient directly.
 323 * Http::$httpEngine is deprecated and has no replacement. The default 'guzzle'
 324   engine will eventually be made the only engine for HTTP requests.
 325 * RepoGroup::singleton(), RepoGroup::destroySingleton(),
 326   RepoGroup::setSingleton(), wfFindFile(), and wfLocalFile() are all
 327   deprecated. Use MediaWikiServices instead.
 328 * The getSubjectPage, getTalkPage, and getOtherPage of Title are deprecated.
 329   Use NamespaceInfo's getSubjectPage, getTalkPage, and getAssociatedPage.
 330 * MWMessagePack class, no longer used, has been deprecated in 1.34.
 331 * The Block class is separated into DatabaseBlock (for blocks stored in the
 332   database), and SystemBlock (for temporary blocks created by the system).
 333   SystemBlock should be used when creating any temporary blocks. Block is
 334   a deprecated alias for DatabaseBlock.
 335 * Parser::$mConf is deprecated. It will be removed entirely in a later version.
 336   Some context can be found at T224165.
 337 * Constructing Parser directly is deprecated. Obtain one from ParserFactory.
 338 * Title::moveSubpages is deprecated. Use MovePage::moveSubpages or
 339   MovePage::moveSubpagesIfAllowed.
 340 * The MWNamespace class is deprecated. Use MediaWikiServices::getNamespaceInfo.
 341 * (T62260) Hard deprecate Language::getExtraUserToggles() method.
 342 * Language::viewPrevNext function is deprecated, use
 343   PrevNextNavigationRenderer::buildPrevNextNavigation instead
 344 * User::trackBlockWithCookie and DatabaseBlock::clearCookie are deprecated. Use
 345   BlockManager::trackBlockWithCookie and BlockManager::clearCookie instead.
 346 * DatabaseBlock::setCookie, DatabaseBlock::getCookieValue,
 347   DatabaseBlock::getIdFromCookieValue and AbstractBlock::shouldTrackWithCookie
 348   are moved to internal helper methods for BlockManager::trackBlockWithCookie.
 349 * ResourceLoaderContext::getConfig and ResourceLoaderContext::getLogger have
 350   been deprecated. Inside ResourceLoaderModule subclasses, use the local methods
 351   instead. Elsewhere, use the methods from the ResourceLoader class.
 352 * The Preprocessor_DOM implementation has been deprecated.  It will be
 353   removed in a future release.  Use the Preprocessor_Hash implementation
 354   instead.
 355 * Sanitizer::attributeWhitelist() and Sanitizer::setupAttributeWhitelist()
 356   have been deprecated; they will be made private in the future.
 357 * SearchResult::termMatches() method is deprecated. It was unreliable because
 358   only populated by few search engine implementations. Use
 359   SqlSearchResult::getTermMatches() if really needed.
 360 * SearchResult::getTextSnippet( $terms ) the $terms param is being deprecated
 361   and should no longer be passed. Search engine implemenations should be
 362   responsible for carrying relevant information needed for highlighting with
 363   their own SearchResultSet/SearchResult sub-classes.
 364 * SearchEngine::$searchTerms protected field is deprecated. Moved to
 365   SearchDatabase.
 366 * The use of the $terms param in the ShowSearchHit and ShowSearchHitTitle
 367   hooks is highly discouraged as it's only populated by SearchDatabase search
 368   engines.
 369 * Skin::escapeSearchLink() is deprecated. Use Skin::getSearchLink() or the skin
 370   template option 'searchaction' instead.
 371 * LoadBalancer::haveIndex() and LoadBalancer::isNonZeroLoad() have
 372   been deprecated.
 373 * User::getRights() and User::$mRights have been deprecated. Use
 374   PermissionManager::getUserPermissions() instead.
 375 * The LocalisationCacheRecache hook no longer allows purging of message blobs
 376   to be prevented. Modifying the $purgeBlobs parameter now has no effect.
 377
 378 === Other changes in 1.34 ===
 379 * …
 380
 381 == Compatibility ==
 382 MediaWiki 1.34 requires PHP 7.0.13 or later. Although HHVM 3.18.5 or later is
 383 supported, it is generally advised to use PHP 7.0.13 or later for long term
 384 support.
 385
 386 MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
 387 but support for them is somewhat less mature. There is experimental support for
 388 Oracle and Microsoft SQL Server.
 389
 390 The supported versions are:
 391
 392 * MySQL 5.5.8 or later
 393 * PostgreSQL 9.2 or later
 394 * SQLite 3.8.0 or later
 395 * Oracle 9.0.1 or later
 396 * Microsoft SQL Server 2005 (9.00.1399)
 397
 398 == Online documentation ==
 399 Documentation for both end-users and site administrators is available on
 400 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 401 for pages that explicitly state that their contents are in the public domain):
 402
 403        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 404
 405 == Mailing list ==
 406 A mailing list is available for MediaWiki user support and discussion:
 407
 408        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 409
 410 A low-traffic announcements-only list is also available:
 411
 412        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 413
 414 It's highly recommended that you sign up for one of these lists if you're
 415 going to run a public MediaWiki, so you can be notified of security fixes.
 416
 417 == IRC help ==
 418 There's usually someone online in #mediawiki on irc.freenode.net.