RELEASE-NOTES-1.24

   1 Security reminder: If you have PHP's register_globals option set, you must
   2 turn it off. MediaWiki will no longer work with it enabled.
   3
   4 == MediaWiki 1.24 ==
   5
   6 THIS IS NOT A RELEASE YET
   7
   8 MediaWiki 1.24 is an alpha-quality branch and is not recommended for use in
   9 production.
  10
  11 === Configuration changes in 1.24 ===
  12 * MediaWiki will no longer run if register_globals is enabled. It has been
  13   deprecated for 5 years now, and was removed in PHP 5.4. For more information
  14   about why, see <https://www.mediawiki.org/wiki/register_globals>.
  15 * MediaWiki now requires PHP's iconv extension. openSUSE users may need to
  16   install the php5-iconv package. Users of other systems may need to add
  17   extension=iconv.so to php.ini or recompile PHP without --without-iconv.
  18 * MediaWiki will no longer function if magic quotes are enabled. It has
  19   been deprecated for 5 years now, and was removed in PHP 5.4.
  20 * The server's canonical hostname is available as $wgServerName, which is
  21   exposed in both mw.config and ApiQuerySiteInfo.
  22 * Introduced $wgPagePropsHaveSortkey as a backwards-compatibility switch,
  23   for using the old schema of the page_props table, in case the respective
  24   schema update was not applied.
  25 * $wgSearchEverythingOnlyLoggedIn was removed as the 'searcheverything'
  26   user option was removed. Use $wgNamespacesToBeSearchedDefault instead or
  27   if you used to have $wgDefaultUserOptions['searcheverything'] = 1.
  28 * $wgMasterWaitTimeout has been deprecated.
  29 * $wgDBClusterTimeout has been removed.
  30 * $wgProxyKey has been removed. It is no longer used by MediaWiki core.
  31   Ensure $wgSecretKey is set in LocalSettings.php.
  32 * $wgExtraInterlanguageLinkPrefixes is a new configuration variable that
  33   contains an array of interwiki prefixes that should be treated as language
  34   prefixes (i.e. turned into interlanguage links when $wgInterwikiMagic is set
  35   to true).
  36 * $wgParserTestRemote has been removed.
  37 * $wgCountTotalSearchHits has been removed. If you're concerned about efficiency
  38   of search, you should use something like CirrusSearch instead of built in
  39   search.
  40 * Users in the 'sysop' group have access to Special:MergeHistory by default.
  41 * $wgFileStore was removed after having been deprecated in 1.17. Alternative
  42   configurations are $wgDeletedDirectory and $wgHashedUploadDirectory.
  43 * The deprecated $wgUseCommaCount variable has been removed.
  44 * $wgEnableSorbs and $wgSorbsUrl have been removed.
  45 * The UserCryptPassword and UserComparePassword hooks are no longer called. Any extensions
  46   using them must be updated to use the Password Hashing API.
  47 * $wgCompiledFiles has been removed.
  48 * $wgSortSpecialPages was removed, the listing on Special:SpecialPages is
  49   now always sorted.
  50 * Users must be able to edit a page to be able to delete it.
  51 * $wgHTCPMulticastAddress, $wgHTCPMulticastRouting and $wgHTCPPort were removed.
  52 * $wgRC2UDPAddress, $wgRC2UDPInterwikiPrefix, $wgRC2UDPOmitBots, $wgRC2UDPPort
  53   and $wgRC2UDPPrefix have been removed.
  54 * The default password type for MediaWiki has been changed from MD5 to PBKDF2.
  55   Password hashes will automatically be updated as users log in. If necessary, the
  56   old MD5 hashing can be restored by changing $wgPasswordDefault to 'B'. In addition,
  57   there is a maintenance script wrapOldPassword.php that can wrap all passwords in
  58   PBKDF2 (or the hashing algorithm of your choice) if you don't want to wait for your
  59   users to log in.
  60 * $wgImportSources can now either be a regular array, or an associative map
  61   specifying subprojects on the interwiki map of the target wiki, or a mix of
  62   the two. Existing configurations will still work.
  63
  64 === New features in 1.24 ===
  65 * Added a new hook, "WhatLinksHereProps", to allow extensions to annotate
  66   WhatLinksHere entries.
  67 * Added a new hook, "ContentGetParserOutput", to customize parser output for
  68   a given content object.
  69 * Deprecated the hook "ShowRawCssJs", use "ContentGetParserOutput" instead.
  70 * HTMLForm's HTMLTextField now supports the 'url' type.
  71 * HTMLForm fields may now be dynamically hidden based on the values of other
  72   fields in the form.
  73 * HTMLForm now supports multiple copies of an input field or set of input
  74   fields, e.g. the form may request "one or more usernames" without having to
  75   have the user enter delimited list of names into a text field.
  76 * Added a new hook, "SidebarBeforeOutput", to allow to edit the structure of
  77   the sidebar just before its display.
  78 * (bug 49156) Added the mediawiki.cookie ResourceLoader module, which wraps
  79   jquery.cookie so that getting/setting a cookie is syntactically and
  80   functionally similar to using the WebRequest::getCookie() and
  81   WebResponse::setcookie() methods.
  82 * (bug 44740) jQuery upgraded from 1.8.3 to 1.11.1. A new configuration option,
  83   $wgIncludejQueryMigrate, also loads the jQuery Migrate hack to let extensions
  84   and gadgets use the long-deprecated functions that were removed in jQuery 1.9.
  85   This option is turned off by default, and will be removed in MediaWiki 1.25.
  86 * (bug 47076) jQuery UI upgraded from 1.8.24 to 1.9.2.
  87 * Changes to content typography (fonts, etc.). See
  88   https://www.mediawiki.org/wiki/Typography_refresh for further information.
  89 * WikitextContent will now render redirects with the expected "redirect"
  90   header, rather than as an ordered list. Code calling Article::viewRedirect
  91   can probably be changed to no longer special-case redirects.
  92 * Header font set to a serif font stack. See
  93   https://www.mediawiki.org/wiki/Typography_refresh for further information.
  94 * (bug 65567) Added a new hook, "BeforeHttpsRedirect", to allow cancellation of
  95   the HTTP to HTTPS redirect due to forceHTTPS cookie, userRequires, etc. This
  96   is only for page views, since this hook doesn't affect UserLogin, OAuth,
  97   CentralAuth, etc. ATTENTION: This hook is likely to be removed soon due to
  98   overall design of the system.
  99 * (bug 17367) It is now possible to add pages to your watchlist from
 100   Special:UnwatchedPages without reloading the special page.
 101 * New methods setVolatile and isVolatile are added to PPFrame, so that
 102   extensions such as Cite.php can mark that their output is volatile and
 103   shouldn't be cached.
 104 * (bug 52817) Advanced search options are now saved on the search page itself,
 105   rather than in a dedicated pane in the preferences panel.
 106 * (bug 44591) The dropdown actions menu (little triangle next to page tabs) in
 107   the Vector skin has gained a label that should make it more discoverable.
 108 * MWCryptHKDF added for fast, cryptographically secure random number generation
 109   that won't deplete openssl's entropy pool.
 110 * ResourceLoader: File modules can now provide a skip function that uses an
 111   inline feature test to bypass loading of the module.
 112 * (bug 20210) Special pages may now provide autocompletion of their subpage
 113   names in search suggestions. Right now the only useful implementation is in
 114   Special:Log, but more are to come.
 115 * Special:MostLinkedTemplates is no longer limited to transclusions from the
 116   Template namespace.
 117 * Skins can now use 'remoteSkinPath' when defining ResourceLoader modules.
 118   This works the same as 'remoteExtPath' but is relative to the skins/ folder
 119   instead of the extensions/ folder.
 120 * Added the json2.js polyfill for the ES5 JSON.stringify and JSON.parse methods.
 121   Exposed as module "json" with a skip function to optimise loading.
 122 * Extensions and skins may now use 'namemsg' in $wgExtensionCredits in addition
 123   to 'name', to allow for the name to be localizable. 'name' should still be
 124   specified for backwards-compatibility and to define the path Special:Version
 125   uses to find extension license information.
 126 * Browser tests are now included to verify basic wiki functionality in developer
 127   environments. For details on running tests, see tests/browser/README.mediawiki.
 128 * Upgrade jStorage to v0.4.10.
 129 * {{!}} is now a magic word that produces the | character. This removes the need
 130   for Template:! for purposes such as passing pipes inside of parameters.
 131 * (bug 20790) The block log snippet on Special:Contributions and while
 132   editing user and user talk pages now works for IP range blocks.
 133 * (bug 9360) Added ability to change the page language for MediaWiki pages using
 134   Special:PageLanguage. All pages are set to wiki language by default.
 135   The feature needs to be enabled with $wgPageLanguageUseDB=true and
 136   permission needs to be set for 'pagelang'.
 137 * Upgrade Moment.js to v2.8.1.
 138 * (bug 67042) Added support for the HTML5 <rtc> tag for East Asian typography.
 139 * Upgrade Sinon.JS to 1.10.3.
 140 * Added the es5-shim polyfill for older or non-compliant javascript engines.
 141 * Upgrade jQuery Cookie to v1.3.1.
 142 * (bug 20476) Add a "viewsuppressed" user right to be able to view
 143   suppressed content but not suppress it ("suppressrevision" right).
 144 * (bug 66440) The MediaWiki web installer will now allow you to choose the skins
 145   to enable (from the ones included in download tarball) and decide which one
 146   should be the default.
 147 * (bug 68085, 68802) Links like [[localInterwikiPrefix:languageCode:pageTitle]],
 148   where localInterwikiPrefix is a member of the $wgLocalInterwikis array, will
 149   no longer be displayed in the sidebar when $wgInterwikiMagic is true. In a
 150   similar way, links like [[localInterwikiPrefix:File:Image.png]] and
 151   [[localInterwikiPrefix:Category:Hello]] will now render as regular links, and
 152   will not include the file or add the page to the category.
 153 * New special page, MyLanguages, to redirect users to subpages with localised
 154   versions of a page. (Integrated from Extension:Translate)
 155 * MediaWiki now supports multiple password types, including bcrypt and PBKDF2.
 156   The default type can be changed with $wgPasswordDefault and the type
 157   configurations can be changed with $wgPasswordConfig.
 158 * Skins can now define custom styles for default ResourceLoader modules using
 159   the $wgResourceModuleSkinStyles global. See the Vector skin for examples.
 160 * (bug 4488) There is now a preference to watch pages where the user has
 161   rollbacked an edit by default.
 162 * (bug 15484) Users will now be redirected to the login page when they need to
 163   log in, rather than being shown a page asking them to log in and having to click
 164   another link to actually get to the login page.
 165 * A JSONContent and JSONContentHandler were added for extensions to extend.
 166
 167 === Bug fixes in 1.24 ===
 168 * (bug 50572) MediaWiki:Blockip should support gender
 169 * (bug 49116) Footer copyright notice is now always displayed in user language
 170   rather than content language (same as copyright notice for editing interface).
 171 * (bug 62258) A bug was fixed in File::getUnscaledThumb when a height
 172   restriction was present in the parameters. Images with both the "frame"
 173   option and a size specification set will now always ignore the provided
 174   size and display an unscaled image, as the documentation has always
 175   claimed it would.
 176 * (bug 39035) Improved Vector skin performance by removing collapsibleNav,
 177   which used to collapse some sidebar elements by default.
 178   This removes -list id suffixes like p-lang-list: instead of using things like
 179   #p-lang-list, you can do #p-lang .body ul.
 180 * (bug 890) Links in Special:RecentChanges and Special:Watchlist no longer
 181   follow redirects to their target pages.
 182 * Parser now dies early if called recursively, instead of producing subtle bugs.
 183 * (bug 14323) Redirect pages, when viewed with redirect=no, no longer hide the
 184   remaining page content.
 185 * (bug 52587) Maintenance script deleteBatch.php no longer follows redirects
 186   in the file namespace and delete the file on the target page. It will still
 187   however delete the redirect page.
 188 * (bug 22683) {{msgnw:}} and other uses of PPFrame::RECOVER_ORIG will correctly
 189   recover the original code of extension tags.
 190 * (bug 65757) MSSQL: Update script drops unnamed constraints to be prepared
 191   for future updates. Because it's doing so heuristically, it may fail or drop
 192   wrong constraints.
 193 * (bug 67870) wfShellExec() cuts off stdout at multiples of 8192 bytes.
 194 * $wgRunJobsAsync now works with private wikis (e.g. read requires login).
 195 * (bugs 57238, 65206) Blank pages can now be directly created.
 196
 197 === Web API changes in 1.24 ===
 198 * action=parse API now supports prop=modules, which provides the list of
 199   ResourceLoader modules that should be used to enhance the parsed content.
 200 * action=query&meta=siteinfo&siprop=interwikimap returns a new "protorel"
 201   field which is true iff protocol-relative urls can be used to access
 202   a particular interwiki map entry.
 203 * ApiQueryLogEvents now provides logpage, which is the page ID from the
 204   logging table, if ids are requested and the user has the permissions.
 205 * action=edit now requires that appendtext, prependtext, or section=new be used
 206   when using the 'redirect' parameter, to prevent clients accidentally
 207   overwriting the target page with the content of the redirect.
 208 * action=logevents will now return an error if both letitle and leprefix are
 209   specified.
 210 * action=logevents has a new parameter, lenamespace, to allow filtering by
 211   namespace.
 212 * action=expandtemplates has a new parameter, prop, and a new output format.
 213   The old format is still used if prop isn't provided, but this is deprecated.
 214 * meta=userinfo can now return the count of unread pages on the watchlist.
 215 * list=watchlist can now filter by unread status.
 216 * The deprecated action=parse&prop=languageshtml has been removed.
 217 * (bug 48071) action=setnotificationtimestamp no longer throws PHP or database
 218   errors when no pages are given.
 219 * (bug 60734) Actions that use ApiPageSet (e.g. purge, watch,
 220   setnotificationtimestamp) will now include continuation information when
 221   using a generator.
 222 * $wgAPIModules (and the related $wgAPIFormatModules, $wgAPIMetaModules,
 223   $wgAPIPropModules, and $wgAPIListModules settings) now allow API modules
 224   to be specified using a "module spec" array instead of a plain class name.
 225   A "module spec" is an associative array containing at least the 'class' key
 226   for the module's class, and optionally a 'factory' key for the factory function
 227   to use for the module. This is intended for extensions that want control over
 228   the instantiation of their API modules, to allow for proper dependency
 229   injection.
 230 * Removed 'props' and 'errors' from action=paraminfo, as they have extremely
 231   limited use and are generally inaccurate, unmaintained, and impossible to
 232   properly maintain. Also removed the corresponding methods from ApiBase and
 233   the 'APIGetPossibleErrors' and 'APIGetResultProperties' hooks.
 234 * Formats dbg, dump, txt, wddx, and yaml are now deprecated.
 235
 236 === Languages updated in 1.24 ===
 237
 238 MediaWiki supports over 350 languages. Many localisations are updated
 239 regularly. Below only new and removed languages are listed, as well as
 240 changes to languages because of Bugzilla reports.
 241
 242 === Other changes in 1.24 ===
 243 * The deprecated jquery.delayedBind ResourceLoader module was removed.
 244 * The deprecated function mw.util.toggleToc was removed.
 245 * The Special:Search hooks SpecialSearchGo and SpecialSearchResultsAppend
 246   were removed as they were unused.
 247 * (bug 65477) User::pingLimiter() now has an additional profile point varying
 248   by action being used.
 249 * mediawiki.util.$content no longer supports old versions of the Vector,
 250   Monobook, Modern and CologneBlue skins that don't yet implement the "mw-body"
 251   and/or "mw-body-primary" class name in their html.
 252 * Added pp_sortkey column to page_props table, so pages can be efficiently
 253   queried and sorted by property value (bug 58032).
 254   See $wgPagePropsHaveSortkey if you want to postpone the schema change.
 255 * BREAKING CHANGE: All four built-in MediaWiki skins (Vector, MonoBook, Modern
 256   and Cologne Blue) were moved out of MediaWiki core to their own respective
 257   repositories. They will be installed with the release tarball, but you must
 258   install them separately if installing MediaWiki from source code. A warning
 259   message displayed until you do it should guide you through the process. See
 260   also <https://www.mediawiki.org/wiki/Manual:Skin_configuration>.
 261 * BREAKING CHANGE: Skins built for MediaWiki 1.15 and earlier that do not use
 262   the "headelement" template key are no longer supported. Setting
 263   $useHeadElement = false; is no longer supported and will not cause old keys
 264   like "headlinks", "skinnameclass", etc. to be defined.
 265 * The deprecated 'SpecialVersionExtensionTypes' hook was removed.
 266 * (bug 63891) Add 'X-Robots-Tag: noindex' header in action=render pages.
 267 * SpecialPage no longer supports the syntax for invoking wfSpecial*() functions.
 268   Special pages should subclass SpecialPage and implement the execute() method.
 269 * (bug 63755) The deprecated constants RC_MOVE and RC_MOVE_OVER_REDIRECT were
 270   removed.
 271 * Special:MostLinkedTemplates has been renamed to Special:MostTranscludedPages.
 272 * The skin autodiscovery mechanism has been deprecated and will be removed in
 273   MediaWiki 1.25. See https://www.mediawiki.org/wiki/Manual:Skin_autodiscovery
 274   for migration guide for creators and users of custom skins that relied on it.
 275 * ResourceLoaderFileModule#getAllStyleFiles now returns all style files and all
 276   skin style files used by the module.
 277 * Removed getLang() from IContextSource and subclasses. (deprecated since 1.19)
 278 * Removed setLang() from subclasses of IContextSource. (deprecated since 1.19)
 279 * Removed WebRequest::escapeAppendQuery(). (deprecated since 1.20)
 280 * Removed info(), purge(), revert() and rollback() from the Article class; they
 281   have since become subclasses of the Action class. (deprecated since 1.19)
 282 * SearchEngineReplacePrefixesComplete hook was removed.
 283 * The "jquery.json" module has been deprecated. Use the "json" module instead.
 284 * Removed HTMLForm::addJS(). (deprecated since 1.18)
 285 * Removed LogEventsList::showHeader(). (deprecated since 1.19)
 286 * Removed ImageGalleryBase::useSkin(). (deprecated since 1.18)
 287 * Removed DatabaseMysqlBase::getLagFromProcesslist(). (deprecated since 1.19)
 288 * Removed LoadBalancer::closeConnecton(). (deprecated since 1.18)
 289 * Removed ApiBase::createContext(). (deprecated since 1.19)
 290 * BREAKING CHANGE: The undocumented Special{$this->getName()}BeforeFormDisplay
 291   set of hooks has been removed and replaced by a single new hook
 292   SpecialPageBeforeFormDisplay.
 293 * (bug 65781) Removed block warning on included {{Special:Contributions}}
 294 * Removed Skin::makeGlobalVariablesScript. (deprecated since 1.19)
 295 * Removed MWNamespace::isMain(). (deprecated since 1.19)
 296 * Removed Preferences::loadOldSearchNs(). (deprecated since 1.19)
 297 * Removed OutputPage::getStatusMessage(). (deprecated since 1.18)
 298 * Removed OutputPage::isUserJsAllowed(). (deprecated since 1.18)
 299 * Removed Title::updateTitleProtection(). (deprecated since 1.19)
 300 * Removed ParserOptions::setSkin(). (deprecated since 1.19)
 301 * Removed Title::escapeCanonicalURL(). (deprecated since 1.19)
 302 * Removed Title::escapeLocalURL(). (deprecated since 1.19)
 303 * Removed Title::escapeFullURL(). (deprecated since 1.19)
 304 * Removed User::isValidEmailAddr(). (deprecated since 1.18)
 305 * Removed Title::getEscapedText(). (deprecated since 1.19)
 306 * Removed Language::getFallbackLanguageCode(). (deprecated since 1.19)
 307 * Removed WikiPage::isBigDeletion(). (deprecated since 1.19)
 308 * Removed MWInit class which contained functions related to a now discontinued
 309   PHP compiler called hphpc. (deprecated since 1.22)
 310 * ApiResult::enableSizeCheck() and disableSizeCheck() are now obsolete.
 311 * Removed ResourceLoaderGetStartupModules hook. (deprecated since 1.23)
 312 * Removed getFormFields(), onSubmit() and onSuccess() from FormlessAction, as
 313   these were meant specifically for FormAction instead.
 314 * Removed Action::execute().
 315 * Removed AjaxAddScript which has been obsolete since ResourceLoader and
 316   is unused by any modern extension.
 317 * Removed maintenance/nextJobDB.php; no longer in use.
 318 * Removed global function wfViewPrevNext(). (deprecated since 1.19)
 319 * Removed global function xmlsafe() from Export.php. (moved to OAIRepo extension)
 320 * Removed Title::userCanRead(). (deprecated since 1.19)
 321 * Removed maintenance script importTextFile.php. Use edit.php script instead.
 322 * A _from_namespace field has been added to the templatelinks, pagelinks,
 323   and filelinks tables. Run update.php to apply this change to the schema.
 324 * Removed File::sha1Base36(). (deprecated since 1.19)
 325 * Removed File::getPropsFromPath(). (deprecated since 1.19)
 326 * Removed functions blockedPage(), noCreatePermission(), readOnlyPage() and
 327   userNotLoggedInPage() from EditPage.php. (deprecated since 1.19)
 328 * Removed functions getContent(), getPreloadedText(), mergeChangesInto() and
 329   setPreloadedText() from EditPage.php. (deprecated since 1.21)
 330 * Removed global functions wfArrayLookup(), wfArrayMerge(), wfDebugDieBacktrace()
 331   and wfTime(). (deprecated since 1.22)
 332 * Microsoft Internet Explorer 6 is now a "grade C" browser, meaning that
 333   JavaScript is no longer executed in this browser. The IEFixes script, which
 334   existed purely to provide support for MSIE versions below 7 and which was
 335   conditionally loaded for those browsers, was also removed.
 336 * Action::checkCanExecute() no longer has a return value.
 337 * Removed cleanupForIRC(), loadFromCurRow(), newFromCurRow(), notifyRC2UDP()
 338   and sendToUDP() from RecentChange.php. (deprecated since 1.22)
 339 * Removed EnhancedChangesList::arrow(), sideArrow(), downArrow(), spacerArrow().
 340
 341 ==== Renamed classes ====
 342 * CLDRPluralRuleConverter_Expression to CLDRPluralRuleConverterExpression
 343 * CLDRPluralRuleConverter_Fragment to CLDRPluralRuleConverterFragment
 344 * CLDRPluralRuleConverter_Operator to CLDRPluralRuleConverterOperator
 345 * CLDRPluralRuleEvaluator_Range to CLDRPluralRuleEvaluatorRange
 346 * CSSJanus_Tokenizer to CSSJanusTokenizer
 347 * MediaWiki_I18N to MediaWikiI18N
 348 * Parser_DiffTest to ParserDiffTest
 349 * RevDel_ArchiveItem to RevDelArchiveItem
 350 * RevDel_ArchiveList to RevDelArchiveList
 351 * RevDel_ArchivedFileItem to RevDelArchivedFileItem
 352 * RevDel_ArchivedFileList to RevDelArchivedFileList
 353 * RevDel_ArchivedRevisionItem to RevDelArchivedRevisionItem
 354 * RevDel_FileItem to RevDelFileItem
 355 * RevDel_FileList to RevDelFileList
 356 * RevDel_Item to RevDelItem
 357 * RevDel_List to RevDelList
 358 * RevDel_LogItem to RevDelLogItem
 359 * RevDel_LogList to RevDelLogList
 360 * RevDel_RevisionItem to RevDelRevisionItem
 361 * RevDel_RevisionList to RevDelRevisionList
 362 * WebInstaller_Complete to WebInstallerComplete
 363 * WebInstaller_Copying to WebInstallerCopying
 364 * WebInstaller_DBConnect to WebInstallerDBConnect
 365 * WebInstaller_DBSettings to WebInstallerDBSettings
 366 * WebInstaller_Document to WebInstallerDocument
 367 * WebInstaller_ExistingWiki to WebInstallerExistingWiki
 368 * WebInstaller_Install to WebInstallerInstall
 369 * WebInstaller_Language to WebInstallerLanguage
 370 * WebInstaller_Name to WebInstallerName
 371 * WebInstaller_Options to WebInstallerOptions
 372 * WebInstaller_Readme to WebInstallerReadme
 373 * WebInstaller_ReleaseNotes to WebInstallerReleaseNotes
 374 * WebInstaller_Restart to WebInstallerRestart
 375 * WebInstaller_Upgrade to WebInstallerUpgrade
 376 * WebInstaller_UpgradeDoc to WebInstallerUpgradeDoc
 377 * WebInstaller_Welcome to WebInstallerWelcome
 378
 379 ==== Removed classes ====
 380 * IPBlockForm - Use SpecialBlock directly
 381 * WatchlistEditor - Use SpecialEditWatchlist directly
 382 * FormatExif - Use FormatMetadata directly
 383 * RevertFileAction - Use RevertAction directly
 384 * HistoryPage - Use HistoryAction directly
 385 * RawPage - Use RawAction directly
 386 * StubContLang - Use Language::factory() instead
 387 * XMLReader2 - Use XMLReader directly
 388
 389 == Compatibility ==
 390
 391 MediaWiki 1.24 requires PHP 5.3.2 or later.
 392
 393 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 394 support for them is somewhat less mature. There is experimental support for
 395 Oracle and Microsoft SQL Server.
 396
 397 The supported versions are:
 398
 399 * MySQL 5.0.2 or later
 400 * PostgreSQL 8.3 or later
 401 * SQLite 3.3.7 or later
 402 * Oracle 9.0.1 or later
 403 * Microsoft SQL Server 2005 (9.00.1399)
 404
 405 == Upgrading ==
 406
 407 1.24 has several database changes since 1.23, and will not work without schema
 408 updates. Note that due to changes to some very large tables like the revision
 409 table, the schema update may take quite long (minutes on a medium sized site,
 410 many hours on a large site).
 411
 412 If upgrading from before 1.11, and you are using a wiki as a commons
 413 repository, make sure that it is updated as well. Otherwise, errors may arise
 414 due to database schema changes.
 415
 416 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 417 new database fields are filled with data.
 418
 419 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 420 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 421 with MediaWiki 1.21.
 422
 423 Don't forget to always back up your database before upgrading!
 424
 425 See the file UPGRADE for more detailed upgrade instructions.
 426
 427 For notes on 1.23.x and older releases, see HISTORY.
 428
 429 == Online documentation ==
 430
 431 Documentation for both end-users and site administrators is available on
 432 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 433 for pages that explicitly state that their contents are in the public domain):
 434
 435         https://www.mediawiki.org/wiki/Documentation
 436
 437 == Mailing list ==
 438
 439 A mailing list is available for MediaWiki user support and discussion:
 440
 441         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 442
 443 A low-traffic announcements-only list is also available:
 444
 445         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 446
 447 It's highly recommended that you sign up for one of these lists if you're
 448 going to run a public MediaWiki, so you can be notified of security fixes.
 449
 450 == IRC help ==
 451
 452 There's usually someone online in #mediawiki on irc.freenode.net.