RELEASE-NOTES-1.32

   1 == MediaWiki 1.32 ==
   2
   3 THIS IS NOT A RELEASE YET
   4
   5 MediaWiki 1.32 is an alpha-quality branch and is not recommended for use in
   6 production.
   7
   8 === Configuration changes in 1.32 ===
   9
  10 ==== New configuration ====
  11 * $wgJpegQuality – The quality of JPEG thumbnails is now configurable through
  12   this setting. The default is 80, which matches the quality of JPEG thumbnails
  13   previously generated by ImageMagick. The quality of JPEG thumbnails generated
  14   by GD was previously 95, but now uses the $wgJpegQuality setting as well.
  15 * $wgCookieSetOnIpBlock - This determines whether to set a cookie when an IP
  16   user is blocked. Doing so means that a blocked user, even after moving to a
  17   new IP address, will still be blocked.
  18 * $wgRawHtmlMessages – This new configuration setting is added for listing
  19   messages which are displayed as raw HTML.
  20 * $wgCSPHeader and $wgCSPReportOnlyHeader – You can now define a
  21   "Content Security Policy" for your wiki. This adds a defense-in-depth feature
  22   to stop an attacker who has found a bug in the parser allowing them to insert
  23   malicious attributes. Disabled by default. (T135963)
  24 * $wgGroupPermissions – A new user group, 'interface-admin', is added for
  25   controlling access to sitewide CSS/JS (and editing other users' CSS/JS). No
  26   other group has 'editsitecss', 'editusercss', 'editsitejs' or 'edituserjs'
  27   by default.
  28 * $wgGrantPermissions – A new grant group, 'editsiteconfig', is added for
  29   granting the above rights.
  30
  31 ==== Changed configuration ====
  32 * $wgUseAjax – This setting, deprecated in 1.31, is now ignored.
  33 * $wgDefaultUserOptions – The default watchlist view time (watchlistdays) has
  34   been increased from 3 to 7 days. (T194414)
  35 * $wgGroupPermissions – The right to edit sitewide Javascript
  36   (e.g. MediaWiki:Common.js), CSS or JSON was separated from 'editinterface'
  37   and is available under 'editsitejs'/'editsitecss'/'editsitejson'. Having
  38   'editinterface' is still necessary to edit such pages.
  39
  40 ==== Removed configuration ====
  41 * $wgEnableAPI and $wgEnableWriteAPI – These settings, deprecated in 1.31,
  42   have been removed. (T115414)
  43 * $wgSiteSupportPage – This setting, unused since 1.5, was removed.
  44 * $wgBrowserBlacklist – This setting, deprecated in 1.30, was removed.
  45 * $wgExperimentalHtmlIds – This setting, deprecated since 1.30, was removed.
  46   The 'html5-legacy' value for $wgFragmentMode is no longer accepted.
  47 * $wgPasswordSenderName - This setting, ignored since 1.23 by MediaWiki and
  48   most extensions, is no longer set. Instead, you can modify the system
  49   message `emailsender`.
  50 * $wgTidyConfig – The experimental Html5Internal and Html5Depurate tidy drivers
  51   were removed. RemexHtml, which is the default, should be used instead.
  52
  53 === New features in 1.32 ===
  54 * (T112474) Generalized the ResourceLoader mechanism for overriding modules
  55   using a particular page during edit previews.
  56 * (T12331) You can now log page creation events by setting $wgPageCreationLog
  57   to true.
  58 * Added 'ApiParseMakeOutputPage' hook.
  59 * (T174313) Added checkbox on Special:ListUsers to display only users in
  60   temporary user groups.
  61 * (T152462) A cookie can now be set when an IP user is blocked to track that
  62   user if they move to a new IP address. This is disabled by default.
  63 * (T194950) Added 'ApiMaxLagInfo' hook.
  64 * SpecialPage::checkLoginSecurityLevel() will now preserve POST data when
  65   reauthenticating.
  66 * FormSpecialPage::execute() will now call checkLoginSecurityLevel() if
  67   getLoginSecurityLevel() returns non-false.
  68 * The 'ImageBeforeProduceHTML' hook is now passed three new parameters, $parser,
  69   &$query and &$widthOption, allowing extensions even finer control over the
  70   resulting HTML code.
  71 * Added new 'ArticleShowPatrolFooter' hook, which allows extensions to determine
  72   if the [mark as patrolled] link should be shown at the footer of patrollable
  73   pages.
  74 * The array of hidden options ($opts) passed to the 'SpecialSearchPowerBox' hook
  75   is now passed by reference, allowing extensions to modify or even unset it.
  76 * Added new 'OutputPageAfterGetHeadLinksArray' hook, allowing extensions to
  77   modify the return value of OutputPage#getHeadLinksArray in order to add,
  78   remove or otherwise alter the elements to be output in the page <head>.
  79 * (T28934) The 'HistoryPageToolLinks' hook allows extensions to append
  80   additional links to the subtitle of a history page.
  81 * The 'GetLinkColours' hook now receives an additional $title parameter,
  82   the Title object of the page being parsed, on which the links will be shown.
  83 * (T194731) DifferenceEngine supports multiple slots. Added SlotDiffRenderer to
  84   render diffs between two Content objects, and DifferenceEngine::setRevisions()
  85   to render diffs between two custom (potentially multi-content) revisions.
  86   Added GetSlotDiffRenderer hook which works like GetDifferenceEngine for slots.
  87 * Added a temporary action=mcrundo to the web UI, as the normal undo logic
  88   can't yet handle MCR and deadlines are forcing is to put off fixing that.
  89   This action should be considered deprecated and should not be used directly.
  90 * Extensions overriding ContentHandler::getUndoContent() will need to be
  91   updated for the changed method signature.
  92
  93 === External library changes in 1.32 ===
  94
  95 ==== New external libraries ====
  96 * Added wikimedia/xmp-reader 0.6.0
  97 * …
  98
  99 ==== Changed external libraries ====
 100 * Updated qunitjs from 2.4.0 to 2.6.2.
 101 * Updated wikimedia/scoped-callback from 1.0.0 to 2.0.0.
 102 ** ScopedCallback objects can no longer be serialized.
 103 * Updated wikimedia/wrappedstring from 2.3.0 to 3.0.1.
 104 * Updated mediawiki/mediawiki-codesniffer from v20.0.0 to v21.0.0.
 105 * Updated composer/spdx-licenses from 1.3.0 to 1.4.0.
 106 * Updated jquery.i18n from 1.0.4 to 1.0.5.
 107 * Updated wikimedia/timestamp from 1.0.0 to 2.0.0.
 108 * Updated wikimedia/remex-html from 1.0.3 to 2.0.0.
 109 * Updated jquery from v3.2.1 to v3.3.1.
 110
 111 ==== Removed external libraries ====
 112 * …
 113
 114 === Bug fixes in 1.32 ===
 115 * SpecialPage::execute() will now only call checkLoginSecurityLevel() if
 116   getLoginSecurityLevel() returns non-false.
 117 * (T43720, T46197) Improved page display title handling for category pages
 118
 119 === Action API changes in 1.32 ===
 120 * Added templated parameters.
 121   * A module can define a templated parameter like "{fruit}-quantity", where
 122     the actual parameters recognized correspond to the values of a multi-valued
 123     parameter. Then clients can make requests like
 124     "fruits=apples|bananas&apples-quantity=1&bananas-quantity=5".
 125   * action=paraminfo will return templated parameter definitions separately
 126     from normal parameters. All parameter definitions now include an "index"
 127     key to allow clients to maintain parameter ordering when merging normal and
 128     templated parameters.
 129 * It is now an error to submit too many values for a multi-valued parameter.
 130   This has generated a warning since MediaWiki 1.14.
 131 * Assertion failures from the 'assert' and 'assertuser' parameters will no
 132   longer use the action module's custom response format, for the few modules
 133   that use custom formatters that handle errors.
 134 * (T198935) User list preferences such as `email-blacklist` and similar
 135   extension preferences are no longer represented as arrays when returned by
 136   action=query&meta=userinfo&uiprop=options.
 137 * 'missingparam' errors will now use the prefixed parameter name in the code
 138   and error text, e.g. "noxxfoo" and "The 'xxfoo' parameter must be set" rather
 139   than "nofoo" and "The 'foo' parameter must be set".
 140 * action=query&prop=revisions now takes a 'rvslots' parameter to indicate the
 141   multi-content revision slots for which content should be returned. It also
 142   has a new rvprop, 'roles', to indicate which roles have slots. A deprecation
 143   warning will be issued if rvprop=content or rvprop=contentmodel are used
 144   without rvslots.
 145 * The rvcontentformat parameter to action=query&prop=revisions has been
 146   deprecated. Clients should be prepared to deal with the default format for
 147   relevant models.
 148 * Use of the deprecated parameters rvexpandtemplates, rvgeneratexml, rvparse,
 149   rvdiffto, rvdifftotext, rvdifftotextpst, rvcontentformat, or the deprecated
 150   rvprop=parsetree is forbidden with the new 'rvslots' parameter.
 151 * action=query&prop=deletedrevisions, action=query&list=allrevisions, and
 152   action=query&list=alldeletedrevisions are changed similarly to
 153   &prop=revisions (see the three previous items).
 154 * (T174032) action=compare now supports multi-content revisions.
 155   * It has a 'slots' parameter to select diffing of individual slots. The
 156     default behavior is to return one combined diff.
 157   * The 'fromtext', 'fromsection', 'fromcontentmodel', 'fromcontentformat',
 158     'totext', 'tosection', 'tocontentmodel', and 'tocontentformat' parameters
 159     are deprecated. Specify the new 'fromslots' and 'toslots' to identify which
 160     slots have text supplied and the corresponding templated parameters for
 161     each slot.
 162   * The behavior of 'fromsection' and 'tosection' of extracting one section's
 163     content is not being preserved. 'fromsection-{slot}' and 'tosection-{slot}'
 164     instead expand the given text as if for a section edit. This effectively
 165     declines T183823 in favor of T185723.
 166
 167 === Action API internal changes in 1.32 ===
 168 * Added 'ApiParseMakeOutputPage' hook.
 169 * Parameter names may no longer contain '{' or '}', as these are now used for
 170   templated parameters.
 171 * (T194950) Added 'ApiMaxLagInfo' hook.
 172 * Added 'ApiParseMakeOutputPage' hook.
 173 * The following methods now take a RevisionRecord rather than a Revision. No
 174   external callers are known.
 175   * ApiFeedContributions::feedItemAuthor()
 176   * ApiFeedContributions::feedItemDesc()
 177   * ApiQueryRevisionsBase::extractRevisionInfo()
 178
 179 === Languages updated in 1.32 ===
 180 MediaWiki supports over 350 languages. Many localisations are updated regularly.
 181 Below only new and removed languages are listed, as well as changes to languages
 182 because of Phabricator reports.
 183
 184 * (T193566) Added language support for Ambonese Malay (abs).
 185 * (T194047) Added language support for Shawiya, Latin script (shy-latn).
 186 * (T195940) Added language support for Batak Mandailing (btm).
 187 * (T137491) Added language support for Standard Moroccan Amazigh (zgh).
 188 * (T198132) Added language support for Manipuri (mni).
 189 * (T201276) Added language support for Western Armenian (hyw).
 190 * (T201583) Added language support for Mon (mnw).
 191
 192 === Breaking changes in 1.32 ===
 193 * $wgRequestTime, deprecated in 1.25, was removed. Use
 194   $_SERVER['REQUEST_TIME_FLOAT'] or WebRequest::getElapsedTime() instead.
 195 * The MediaWikiI18N class, deprecated in 1.31, was removed.
 196 * QuickTemplate::setTranslator(), deprecated in 1.31, was removed. Use
 197   Skin::msg() instead.
 198 * wfInitShellLocale(), deprecated in 1.30, was removed.
 199 * wfShellExecDisabled(), deprecated in 1.30, was removed.
 200 * The type string for the parameter $lang of DateFormatter::getInstance,
 201   deprecated in 1.31, was removed.
 202 * The EDIT_TOKEN_SUFFIX constant deprecated in 1.27, was removed. Use
 203   MediaWiki\Session\Token::SUFFIX instead.
 204 * EditPage::isOouiEnabled() deprecated in 1.30, was removed.
 205 * mw.util.wikiGetlink(), deprecated in 1.23, was removed. Use mw.util.getUrl()
 206   instead.
 207 * (T61113) The following methods and constants from the Revision class, which
 208   were deprecated in 1.25, have now been removed:
 209   * Revision::getRawUser()
 210   * Revision::getRawUserText()
 211   * Revision::getRawComment()
 212 * window.gM() from mediawiki.jqueryMsg, deprecated in 1.23, was removed. Use
 213   mw.msg() or mw.message() instead.
 214 * mw.util.escapeId(), deprecated in 1.30, was removed. Use
 215   mw.util.escapeIdForAttribute or mw.util.escapeIdForLink instead.
 216 * mw.util.updateTooltipAccessKeys(), deprecated in 1.24, was removed. Use
 217   jquery.accessKeyLabel instead.
 218 * The SqlDataUpdate class, deprecated in 1.28, has been removed.
 219 * The Html5Internal and Html5Depurate tidy driver classes were removed, along
 220   with the Balancer tidy implementation. Both implementations were experimental,
 221   and were replaced by RemexHtml.
 222 * (T179624) Job::insert() and ::batchInsert(), deprecated in 1.21, were both
 223   removed. Use JobQueueGroup::singleton()->push() instead.
 224 * The jquery.footHovzer module, for mediawiki.debug, was removed.
 225 * The es5-shim module, empty and deprecated since 1.29, was removed.
 226 * the dom-level2-shim module, empty and deprecated since 1.29, was removed.
 227 * the json module, empty and deprecated since 1.29, was removed.
 228 * The mediawiki.widgets.visibleByteLimit module alias, deprecated in 1.32, was
 229   removed. Use mediawiki.widgets.visibleLengthLimit instead.
 230 * The jquery.farbtastic module, unused since 1.18, was removed.
 231 * The 'jquery.expandableField' module, unused since 1.22, was removed.
 232 * (T181318) The $wgStyleVersion setting and its appendage to various script and
 233   style URLs in OutputPage, deprecated in 1.31, was removed.
 234 * The hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend' may provide
 235   any HTMLForm object rather than PreferencesForm.
 236 * The non namespaced TimestampException class, deprecated in 1.29, was removed.
 237   Use Wikimedia\Timestamp\TimestampException instead.
 238 * The global functions codepointToUtf8, hexSequenceToUtf8, utf8ToHexSequence,
 239   utf8ToCodepoint, and escapeSingleString (deprecated in 1.25) were removed.
 240   The UtfNormal\Utils class from the utfnormal library should be used instead.
 241 * The deprecated UTF8_ and UNICODE_ constants were removed. The class constants
 242   from the UtfNormal\Constants class from the utfnormal library should be used
 243 * (T140807) The wgResourceLoaderLESSImportPaths configuration option was removed
 244   from ResourceLoader. Instead, use `@import` statements in LESS to import
 245   files directly from nearby directories within the same project.
 246 * (T140804) The wgResourceLoaderLESSVars configuration option, deprecated
 247   since 1.30, was removed. Instead, to expose variables from PHP to LESS, use
 248   the ResourceLoaderModule::getLessVars() method.
 249 * The protected methods PHPSessionHandler::returnSuccess() and returnFailure(),
 250   only needed for PHP5 compatibility, have been removed. It now uses the boolean
 251   values `true` and `false` respectively.
 252 * The $parserMemc global and wfGetParserCacheStorage(), deprecated since 1.30,
 253   were removed. Use the ParserCache class instead.
 254 * ScopedCallback (deprecated in 1.28) was removed. Use Wikimedia\ScopedCallback
 255   instead.
 256 * Support for ResourceLoaderModule::getModifiedTime() and getModifiedHash(),
 257   deprecated since 1.26, was removed. Use getDefinitionSummary() instead.
 258 * (T195256) Skins are recommended not to rely on JavaScript for the "mw-jump"
 259   and "jump-to-nav" accessibility links. To this end, the "jquery.mw-jump"
 260   is no longer loaded by default. The Vector and MonoBook skins have made a
 261   minor change to implement the toggle feature with CSS instead. To restore
 262   prior functionality, either explicitly load "jquery.mw-jump" in your skin
 263   or refer to T195256 for details on how to make the same change.
 264 * Hook 'EditPageBeforeEditChecks' was removed;
 265   use 'EditPageGetCheckboxesDefinition' instead.
 266 * Linker::getLinkColour() and DummyLinker::getLinkColour(), deprecated since
 267   1.28, were removed. LinkRenderer::getLinkClasses() should be used instead.
 268 * Wikimedia\Rdbms\LoadBalancer::getLaggedSlaveMode(), deprecated in 1.28, has
 269   been removed. Use Wikimedia\Rdbms\LoadBalancer::getLaggedReplicaMode()
 270   instead.
 271 * mw.widgets.CategoryMultiselectWidget now uses TagMultiselectWidget instead of
 272   CapsuleMultiselectWidget. The following methods may no longer be used:
 273   * setItemsFromData: Use setValue instead
 274   * getItemsData: Use getItems instead and get the data property
 275 * Two OutputPage methods, addMetadataLink() and getMetadataAttribute(), were
 276   removed.  Use addLink() instead.
 277 * Another two OutputPage methods, setPageTitleActionText() and
 278   getPageTitleActionText(), were removed.  They did nothing since 1.15 (almost
 279   ten years).  Use setHTMLTitle() directly.
 280 * All MagicWord static member variables have been removed.  Use appropriate
 281   hooks or MagicWordFactory methods instead.
 282 * MagicWord::clearCache() has been removed.  Instead, create a new
 283   MagicWordFactory, such as by calling
 284   resetServiceForTesting( 'MagicWordFactory' ) on a MediaWikiServices.
 285 * mw.util.init() has been removed. This function is not needed anymore and was
 286   a no-op function since 1.30.
 287 * SpecialPageFactory::resetList() is a no-op.  Call overrideMwServices()
 288   instead.
 289 * MediaWiki no longer supports a StartProfiler.php file.
 290   Define $wgProfiler via LocalSettings.php instead.
 291 * The mw.loader.addSource() is now considered a private method, and no longer
 292   supports the `id, url` signature. Use the `Object` parameter instead.
 293 * Several collations were removed. They were workarounds for bugs in the ICU
 294   library and they are no longer needed (as of ICU 57.1):
 295   * 'uppercase-se' (NorthernSamiUppercaseCollation) - use 'uca-se' instead
 296   * 'xx-uca-et' (CollationEt) - use 'uca-et' instead
 297   * 'xx-uca-fa' (CollationFa) - use 'uca-fa' instead
 298 * The hooks 'SpecialRecentChangesFilters' & 'SpecialWatchlistFilters' deprecated
 299   in 1.23 were removed. Instead, use 'ChangesListSpecialPageStructuredFilters'.
 300   The ChangesListSpecialPage code for these legacy hooks, and their use in
 301   SpecialRecentchanges.php and SpecialWatchlist, was also removed:
 302   * ChangesListSpecialPage->getCustomFilters()
 303   * ChangesListSpecialPage->getFilterGroupDefinitionFromLegacyCustomFilters()
 304   * ChangesListSpecialPage::customFilters
 305
 306 === Deprecations in 1.32 ===
 307 * HTMLForm::setSubmitProgressive() is deprecated. No need to call it. Submit
 308   button is already marked as progressive.
 309 * Skin::setupSkinUserCss() is deprecated. Adding of modules to load
 310   has been centralised to Skin::getDefaultModules(), which is now capable
 311   of queueing style modules as well.
 312 * OutputPage::addModuleScripts() and ParserOutput::addModuleScripts are
 313   deprecated. Use addModules() instead.
 314 * Overriding SearchEngine::{searchText,searchTitle,searchArchiveTitle}
 315   in extending classes is deprecated.  Extend related doSearch* methods
 316   instead.
 317 * The following 'mediawiki.api' plugin modules were merged into mediawiki.api
 318   and deprecated: mediawiki.api.category, mediawiki.api.edit,
 319   mediawiki.api.login, mediawiki.api.options, mediawiki.api.parse,
 320   mediawiki.api.upload, mediawiki.api.user, mediawiki.api.watch,
 321   mediawiki.api.messages, and mediawiki.api.rollback.
 322 * ApiBase::truncateArray() is deprecated. No replacement, as nothing is known
 323   to use it.
 324 * WatchAction::getUnwatchToken is deprecated. Use WatchAction::getWatchToken
 325   with the 'unwatch' action parameter instead.
 326 * IcuCollation::getICUVersion() is deprecated, as you can just use the PHP
 327   constant INTL_ICU_VERSION directly in all versions that MediaWiki supports.
 328 * Parser::fetchFile() is deprecated. Use ::fetchFileAndTitle() instead.
 329 * The ApiQueryContributions class has been renamed to ApiQueryUserContribs.
 330 * The XMPInfo, XMPReader, and XMPValidate classes have been deprecated in favor
 331   of the namespaced classes provided by the wikimedia/xmp-reader library.
 332 * SearchResultSet::{next,rewind} are deprecated. Calling code should
 333   use foreach on the SearchResultSet, or the extractResults method. Extending
 334   code should override extractResults.
 335 * Instantiating SearchResultSet directly is deprecated. SearchEngine
 336   implementations must subclass SearchResultSet for their purposes.
 337 * SearchResult::setExtensionData argument has been changed from accepting an
 338   array to accepting a Closure that returns the array when called.
 339 * Class CryptRand, everything in MWCryptRand except generateHex() and function
 340   MediaWikiServices::getCryptRand() are deprecated, use random_bytes() to
 341   generate cryptographically secure random byte sequences.
 342 * Parser::getConverterLanguage() is deprecated.  Use ::getTargetLanguage()
 343   instead.
 344 * Language::markNoConversion() is deprecated.  It confused readers because
 345   it had unexpected behavior (only marking text if it looked like a URL)
 346   and was only used in a single place in the code.  Use
 347   LanguageConverter::markNoConversion() instead.
 348 * (T197492) Language::truncate() was soft deprecated in 1.31 and is
 349   hard deprecated in this release.  It has been split into two similar
 350   methods, Language::truncateForVisual() and Language::truncateForDatabase(),
 351   which measure length in characters and bytes, respectively.  Use
 352   Language::truncateForVisual() when possible to provide equity to users
 353   of multibyte scripts.
 354 * (T176526) EditPage::getContextTitle() falling back to $wgTitle when the
 355   context title is unset is now deprecated; anything creating an EditPage
 356   instance should set the context title via ::setContextTitle().
 357 * The 'jquery.hidpi' module (polyfill for IMG srcset) is deprecated.
 358 * ResourceLoaderStartUpModule::getStartupModules() and ::getLegacyModules()
 359   are deprecated. These concepts are obsolete and have no replacement.
 360 * String type for $lang of DifferenceEngine::setTextLanguage is deprecated.
 361 * The following methods of OutputPage are now deprecated in favour
 362   of using showFatalError directly: OutputPage::showFileDeleteError()
 363   OutputPage::showFileNotFoundError(), OutputPage::showFileRenameError()
 364   OutputPage::showFileCopyError() and OutputPage::showUnexpectedValueError().
 365 * The Replacer, DoubleReplacer, HashtableReplacer, and RegexlikeReplacer
 366   classes are now deprecated. Use a Closure instead.
 367 * (T194263) ContentHandler::makeParserOptions() is deprecated. Use
 368   WikiPage::makeParserOptions() or ParserOptions::newCanonical() instead.
 369 * (T100681) Use of the Parsoid v1 API with the VirtualRESTService, deprecated in
 370   MediaWiki 1.26,  is now hard-deprecated. All known clients were converted to
 371   the Parsoid v3 API in May 2015.
 372 * $input is deprecated in hook 'LogEventsListGetExtraInputs'. Use
 373   $formDescriptor instead.
 374 * SearchEngine::transformSearchTerm( $term ) should no longer be called prior
 375   to running searchText. This method was mainly implemented to support the
 376   'prefix' URI param in SpecialSearch, but there are no reasons to expose this
 377   logic as it should be handled internally by SearchEngine implementations
 378   supporting this feature. SearchEngine implementations should no longer
 379   override this methods.
 380 * SearchEngine::replacePrefixes( $query ) should no longer be called prior
 381   to running searchText/searchTitle.
 382 * (T199657) Messages for $wgFilterLogTypes labels should be no longer be in the
 383   'log-show-hide-[type]' format. Instead use 'logeventslist-[type]-log'.
 384 * Global functions  wfArrayFilter() and wfArrayFilterByKey() are deprecated.
 385   use array_filter() directly.
 386 * The $wgShowSQLErrors global is deprecated and nonfunctional.
 387   Set $wgShowExceptionDetails and/or $wgShowHostnames instead.
 388 * The $wgShowDBErrorBacktrace global is deprecated and nonfunctional.
 389   Set $wgShowExceptionDetails instead.
 390 * Public access to the DifferenceEngine properties mOldid, mNewid, mOldRev,
 391   mNewRev, mOldPage, mNewPage, mOldContent, mNewContent, mRevisionsLoaded,
 392   mTextLoaded and mCacheHit is deprecated. Use getOldid() / getNewid() /
 393   getOldRevision() / getNewRevision() for the first four (note that the
 394   revision ones return a RevisionRecord, not a Revision), do your own lookup
 395   for page/content.
 396 * The $wgExternalDiffEngine value 'wikidiff2' is deprecated. To use wikidiff2
 397   just enable the PHP extension, and it will be autodetected.
 398 * (T194731) DifferenceEngine properties mOldContent and mNewContent and methods
 399   setContent(), generateContentDiffBody(), generateTextDiffBody() and textDiff()
 400   are deprecated. To interact with a single slot, use a SlotDiffRenderer (and
 401   subclass it to customize diff rendering); to diff custom (e.g. unsaved)
 402   content, use setRevisions(). Subclassing DifferenceEngine should only be done
 403   to customize page-level diff properties (such as the navigation header).
 404 * The wfUseMW function, soft-deprecated in 1.26, is now hard deprecated.
 405 * All MagicWord static methods are now deprecated.  Use the MagicWordFactory
 406   methods instead.
 407 * PasswordFactory::init is deprecated. To get a password factory with the
 408   standard configuration, use MediaWikiServices::getPasswordFactory.
 409 * $wgContLang is deprecated, use MediaWikiServices::getContentLanguage()
 410   instead.
 411 * $wgParser is deprecated, use MediaWikiServices::getParser() instead.
 412 * wfGetMainCache() is deprecated, use ObjectCache::getLocalClusterInstance()
 413   instead.
 414 * wfGetCache() is deprecated, use ObjectCache::getInstance() instead.
 415 * All SpecialPageFactory static methods are deprecated. Instead, call the
 416   methods on a SpecialPageFactory instance, which may be obtained from
 417   MediaWikiServices.
 418 * mw.user.stickyRandomId was renamed to the more explicit
 419   mw.user.getPageviewToken to better capture its function.
 420 * Passing Revision objects to ContentHandler::getUndoContent() is deprecated,
 421   Content object should be passed instead.
 422 * (T197179) Parameters 'notice', 'notice-messages', 'notice-message',
 423   previously used by OOUI HTMLForm fields, are now deprecated. Use
 424   'help', 'help-message', 'help-messages' instead.
 425 * (T197179) HTMLFormField::getNotices() is now deprecated.
 426 * The jquery.localize module is now deprecated. Use jquery.i18n instead.
 427
 428 === Other changes in 1.32 ===
 429 * (T198811) The following tables have had their UNIQUE indexes turned into
 430   proper PRIMARY KEYs for increased maintainability: interwiki, page_props,
 431   protected_titles and site_identifiers.
 432 * OOUI HTMLForm will now display help text inline after the input field,
 433   rather than in a popup. Previous behavior can be restored by using
 434   `'help-inline' => false`.
 435 * The archive table's ar_rev_id field is now unique.
 436 * Special:BotPasswords now requires reauthentication.
 437 * …
 438
 439 == Compatibility ==
 440 MediaWiki 1.32 requires PHP 7.0.0 or later. Although HHVM 3.18.5 or later is
 441 supported, it is generally advised to use PHP 7.0.0 or later for long term
 442 support.
 443
 444 MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
 445 but support for them is somewhat less mature. There is experimental support for
 446 Oracle and Microsoft SQL Server.
 447
 448 The supported versions are:
 449
 450 * MySQL 5.5.8 or later
 451 * PostgreSQL 9.2 or later
 452 * SQLite 3.3.7 or later
 453 * Oracle 9.0.1 or later
 454 * Microsoft SQL Server 2005 (9.00.1399)
 455
 456 == Upgrading ==
 457 1.32 has several database changes since 1.31, and will not work without schema
 458 updates. Note that due to changes to some very large tables like the revision
 459 table, the schema update may take quite long (minutes on a medium sized site,
 460 many hours on a large site).
 461
 462 Don't forget to always back up your database before upgrading!
 463
 464 See the file UPGRADE for more detailed upgrade instructions, including
 465 important information when upgrading from versions prior to 1.11.
 466
 467 For notes on 1.31.x and older releases, see HISTORY.
 468
 469 == Online documentation ==
 470 Documentation for both end-users and site administrators is available on
 471 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 472 for pages that explicitly state that their contents are in the public domain):
 473
 474        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 475
 476 == Mailing list ==
 477 A mailing list is available for MediaWiki user support and discussion:
 478
 479        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 480
 481 A low-traffic announcements-only list is also available:
 482
 483        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 484
 485 It's highly recommended that you sign up for one of these lists if you're
 486 going to run a public MediaWiki, so you can be notified of security fixes.
 487
 488 == IRC help ==
 489 There's usually someone online in #mediawiki on irc.freenode.net.