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 * $wgMultiContentRevisionSchemaMigrationStage now defaults to writing both the
  40   old and the new schema, but reading the new schema, so Multi-Content Revisions
  41   (MCR) are now functional per default. The new default value of the setting is
  42   SCHEMA_COMPAT_WRITE_BOTH | SCHEMA_COMPAT_READ_NEW.
  43
  44 ==== Removed configuration ====
  45 * $wgEnableAPI and $wgEnableWriteAPI – These settings, deprecated in 1.31,
  46   have been removed. (T115414)
  47 * $wgSiteSupportPage – This setting, unused since 1.5, was removed.
  48 * $wgBrowserBlacklist – This setting, deprecated in 1.30, was removed.
  49 * $wgExperimentalHtmlIds – This setting, deprecated since 1.30, was removed.
  50   The 'html5-legacy' value for $wgFragmentMode is no longer accepted.
  51 * $wgPasswordSenderName - This setting, ignored since 1.23 by MediaWiki and
  52   most extensions, is no longer set. Instead, you can modify the system
  53   message `emailsender`.
  54 * $wgTidyConfig – The experimental Html5Internal and Html5Depurate tidy drivers
  55   were removed. RemexHtml, which is the default, should be used instead.
  56
  57 === New features in 1.32 ===
  58 * (T112474) Generalized the ResourceLoader mechanism for overriding modules
  59   using a particular page during edit previews.
  60 * (T12331) You can now log page creation events by setting $wgPageCreationLog
  61   to true.
  62 * Added 'ApiParseMakeOutputPage' hook.
  63 * (T174313) Added checkbox on Special:ListUsers to display only users in
  64   temporary user groups.
  65 * (T152462) A cookie can now be set when an IP user is blocked to track that
  66   user if they move to a new IP address. This is disabled by default.
  67 * (T194950) Added 'ApiMaxLagInfo' hook.
  68 * SpecialPage::checkLoginSecurityLevel() will now preserve POST data when
  69   reauthenticating.
  70 * FormSpecialPage::execute() will now call checkLoginSecurityLevel() if
  71   getLoginSecurityLevel() returns non-false.
  72 * The 'ImageBeforeProduceHTML' hook is now passed three new parameters, $parser,
  73   &$query and &$widthOption, allowing extensions even finer control over the
  74   resulting HTML code.
  75 * Added new 'ArticleShowPatrolFooter' hook, which allows extensions to determine
  76   if the [mark as patrolled] link should be shown at the footer of patrollable
  77   pages.
  78 * The array of hidden options ($opts) passed to the 'SpecialSearchPowerBox' hook
  79   is now passed by reference, allowing extensions to modify or even unset it.
  80 * Added new 'OutputPageAfterGetHeadLinksArray' hook, allowing extensions to
  81   modify the return value of OutputPage#getHeadLinksArray in order to add,
  82   remove or otherwise alter the elements to be output in the page <head>.
  83 * (T28934) The 'HistoryPageToolLinks' hook allows extensions to append
  84   additional links to the subtitle of a history page.
  85 * The 'GetLinkColours' hook now receives an additional $title parameter,
  86   the Title object of the page being parsed, on which the links will be shown.
  87 * (T194731) DifferenceEngine supports multiple slots. Added SlotDiffRenderer to
  88   render diffs between two Content objects, and DifferenceEngine::setRevisions()
  89   to render diffs between two custom (potentially multi-content) revisions.
  90   Added GetSlotDiffRenderer hook which works like GetDifferenceEngine for slots.
  91 * Added a temporary action=mcrundo to the web UI, as the normal undo logic
  92   can't yet handle MCR and deadlines are forcing is to put off fixing that.
  93   This action should be considered deprecated and should not be used directly.
  94 * Extensions overriding ContentHandler::getUndoContent() will need to be
  95   updated for the changed method signature.
  96 * Added a new hook, 'UserGetRightsRemove', which can be used to remove rights
  97   from user. Unlike the 'UserGetRights' it will ensure that removed rights
  98   will not be reinserted.
  99
 100 === External library changes in 1.32 ===
 101
 102 ==== New external libraries ====
 103 * Added wikimedia/xmp-reader 0.6.0
 104 * …
 105
 106 ==== Changed external libraries ====
 107 * Updated qunitjs from 2.4.0 to 2.6.2.
 108 * Updated wikimedia/scoped-callback from 1.0.0 to 2.0.0.
 109 ** ScopedCallback objects can no longer be serialized.
 110 * Updated wikimedia/wrappedstring from 2.3.0 to 3.0.1.
 111 * Updated mediawiki/mediawiki-codesniffer from v20.0.0 to v21.0.0.
 112 * Updated composer/spdx-licenses from 1.3.0 to 1.4.0.
 113 * Updated jquery.i18n from 1.0.4 to 1.0.5.
 114 * Updated wikimedia/timestamp from 1.0.0 to 2.2.0.
 115 * Updated wikimedia/remex-html from 1.0.3 to 2.0.0.
 116 * Updated jquery from v3.2.1 to v3.3.1.
 117
 118 ==== Removed external libraries ====
 119 * …
 120
 121 === Bug fixes in 1.32 ===
 122 * SpecialPage::execute() will now only call checkLoginSecurityLevel() if
 123   getLoginSecurityLevel() returns non-false.
 124 * (T43720, T46197) Improved page display title handling for category pages
 125 * (T65080) Fixed resetting options of some types via API action=options.
 126
 127 === Action API changes in 1.32 ===
 128 * Added templated parameters.
 129   * A module can define a templated parameter like "{fruit}-quantity", where
 130     the actual parameters recognized correspond to the values of a multi-valued
 131     parameter. Then clients can make requests like
 132     "fruits=apples|bananas&apples-quantity=1&bananas-quantity=5".
 133   * action=paraminfo will return templated parameter definitions separately
 134     from normal parameters. All parameter definitions now include an "index"
 135     key to allow clients to maintain parameter ordering when merging normal and
 136     templated parameters.
 137 * It is now an error to submit too many values for a multi-valued parameter.
 138   This has generated a warning since MediaWiki 1.14.
 139 * Assertion failures from the 'assert' and 'assertuser' parameters will no
 140   longer use the action module's custom response format, for the few modules
 141   that use custom formatters that handle errors.
 142 * (T198935) User list preferences such as `email-blacklist` and similar
 143   extension preferences are no longer represented as arrays when returned by
 144   action=query&meta=userinfo&uiprop=options.
 145 * 'missingparam' errors will now use the prefixed parameter name in the code
 146   and error text, e.g. "noxxfoo" and "The 'xxfoo' parameter must be set" rather
 147   than "nofoo" and "The 'foo' parameter must be set".
 148 * action=query&prop=revisions now takes a 'rvslots' parameter to indicate the
 149   multi-content revision slots for which content should be returned. It also
 150   has a new rvprop, 'roles', to indicate which roles have slots. A deprecation
 151   warning will be issued if rvprop=content or rvprop=contentmodel are used
 152   without rvslots.
 153 * The rvcontentformat parameter to action=query&prop=revisions has been
 154   deprecated. Clients should be prepared to deal with the default format for
 155   relevant models.
 156 * Use of the deprecated parameters rvexpandtemplates, rvgeneratexml, rvparse,
 157   rvdiffto, rvdifftotext, rvdifftotextpst, rvcontentformat, or the deprecated
 158   rvprop=parsetree is forbidden with the new 'rvslots' parameter.
 159 * action=query&prop=deletedrevisions, action=query&list=allrevisions, and
 160   action=query&list=alldeletedrevisions are changed similarly to
 161   &prop=revisions (see the three previous items).
 162 * (T174032) action=compare now supports multi-content revisions.
 163   * It has a 'slots' parameter to select diffing of individual slots. The
 164     default behavior is to return one combined diff.
 165   * The 'fromtext', 'fromsection', 'fromcontentmodel', 'fromcontentformat',
 166     'totext', 'tosection', 'tocontentmodel', and 'tocontentformat' parameters
 167     are deprecated. Specify the new 'fromslots' and 'toslots' to identify which
 168     slots have text supplied and the corresponding templated parameters for
 169     each slot.
 170   * The behavior of 'fromsection' and 'tosection' of extracting one section's
 171     content is not being preserved. 'fromsection-{slot}' and 'tosection-{slot}'
 172     instead expand the given text as if for a section edit. This effectively
 173     declines T183823 in favor of T185723.
 174 * (T198214) The 'disabletidy' parameter to action=parse has been
 175   deprecated; untidy output will not be supported by future wikitext
 176   parsers.
 177
 178 === Action API internal changes in 1.32 ===
 179 * Added 'ApiParseMakeOutputPage' hook.
 180 * Parameter names may no longer contain '{' or '}', as these are now used for
 181   templated parameters.
 182 * (T194950) Added 'ApiMaxLagInfo' hook.
 183 * The following methods now take a RevisionRecord rather than a Revision. No
 184   external callers are known.
 185   * ApiFeedContributions::feedItemAuthor()
 186   * ApiFeedContributions::feedItemDesc()
 187   * ApiQueryRevisionsBase::extractRevisionInfo()
 188
 189 === Languages updated in 1.32 ===
 190 MediaWiki supports over 350 languages. Many localisations are updated regularly.
 191 Below only new and removed languages are listed, as well as changes to languages
 192 because of Phabricator reports.
 193
 194 * (T193566) Added language support for Ambonese Malay (abs).
 195 * (T194047) Added language support for Shawiya, Latin script (shy-latn).
 196 * (T195940) Added language support for Batak Mandailing (btm).
 197 * (T137491) Added language support for Standard Moroccan Amazigh (zgh).
 198 * (T198132) Added language support for Manipuri (mni).
 199 * (T201276) Added language support for Western Armenian (hyw).
 200 * (T201583) Added language support for Mon (mnw).
 201
 202 === Breaking changes in 1.32 ===
 203 * $wgRequestTime, deprecated in 1.25, was removed. Use
 204   $_SERVER['REQUEST_TIME_FLOAT'] or WebRequest::getElapsedTime() instead.
 205 * The MediaWikiI18N class, deprecated in 1.31, was removed.
 206 * QuickTemplate::setTranslator(), deprecated in 1.31, was removed. Use
 207   Skin::msg() instead.
 208 * wfInitShellLocale(), deprecated in 1.30, was removed.
 209 * wfShellExecDisabled(), deprecated in 1.30, was removed.
 210 * The type string for the parameter $lang of DateFormatter::getInstance,
 211   deprecated in 1.31, was removed.
 212 * The EDIT_TOKEN_SUFFIX constant deprecated in 1.27, was removed. Use
 213   MediaWiki\Session\Token::SUFFIX instead.
 214 * EditPage::isOouiEnabled() deprecated in 1.30, was removed.
 215 * mw.util.wikiGetlink(), deprecated in 1.23, was removed. Use mw.util.getUrl()
 216   instead.
 217 * (T61113) The following methods and constants from the Revision class, which
 218   were deprecated in 1.25, have now been removed:
 219   * Revision::getRawUser()
 220   * Revision::getRawUserText()
 221   * Revision::getRawComment()
 222 * window.gM() from mediawiki.jqueryMsg, deprecated in 1.23, was removed. Use
 223   mw.msg() or mw.message() instead.
 224 * mw.util.escapeId(), deprecated in 1.30, was removed. Use
 225   mw.util.escapeIdForAttribute or mw.util.escapeIdForLink instead.
 226 * mw.util.updateTooltipAccessKeys(), deprecated in 1.24, was removed. Use
 227   jquery.accessKeyLabel instead.
 228 * The SqlDataUpdate class, deprecated in 1.28, has been removed.
 229 * The Html5Internal and Html5Depurate tidy driver classes were removed, along
 230   with the Balancer tidy implementation. Both implementations were experimental,
 231   and were replaced by RemexHtml.
 232 * (T179624) Job::insert() and ::batchInsert(), deprecated in 1.21, were both
 233   removed. Use JobQueueGroup::singleton()->push() instead.
 234 * The jquery.footHovzer module, for mediawiki.debug, was removed.
 235 * The es5-shim module, empty and deprecated since 1.29, was removed.
 236 * the dom-level2-shim module, empty and deprecated since 1.29, was removed.
 237 * the json module, empty and deprecated since 1.29, was removed.
 238 * The mediawiki.widgets.visibleByteLimit module alias, deprecated in 1.32, was
 239   removed. Use mediawiki.widgets.visibleLengthLimit instead.
 240 * The jquery.farbtastic module, unused since 1.18, was removed.
 241 * The 'jquery.expandableField' module, unused since 1.22, was removed.
 242 * (T181318) The $wgStyleVersion setting and its appendage to various script and
 243   style URLs in OutputPage, deprecated in 1.31, was removed.
 244 * The hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend' may provide
 245   any HTMLForm object rather than PreferencesForm.
 246 * The non namespaced TimestampException class, deprecated in 1.29, was removed.
 247   Use Wikimedia\Timestamp\TimestampException instead.
 248 * The global functions codepointToUtf8, hexSequenceToUtf8, utf8ToHexSequence,
 249   utf8ToCodepoint, and escapeSingleString (deprecated in 1.25) were removed.
 250   The UtfNormal\Utils class from the utfnormal library should be used instead.
 251 * The deprecated UTF8_ and UNICODE_ constants were removed. The class constants
 252   from the UtfNormal\Constants class from the utfnormal library should be used
 253 * (T140807) The wgResourceLoaderLESSImportPaths configuration option was removed
 254   from ResourceLoader. Instead, use `@import` statements in LESS to import
 255   files directly from nearby directories within the same project.
 256 * (T140804) The wgResourceLoaderLESSVars configuration option, deprecated
 257   since 1.30, was removed. Instead, to expose variables from PHP to LESS, use
 258   the ResourceLoaderModule::getLessVars() method.
 259 * The protected methods PHPSessionHandler::returnSuccess() and returnFailure(),
 260   only needed for PHP5 compatibility, have been removed. It now uses the boolean
 261   values `true` and `false` respectively.
 262 * The $parserMemc global and wfGetParserCacheStorage(), deprecated since 1.30,
 263   were removed. Use the ParserCache class instead.
 264 * ScopedCallback (deprecated in 1.28) was removed. Use Wikimedia\ScopedCallback
 265   instead.
 266 * Support for ResourceLoaderModule::getModifiedTime() and getModifiedHash(),
 267   deprecated since 1.26, was removed. Use getDefinitionSummary() instead.
 268 * (T195256) Skins are recommended not to rely on JavaScript for the "mw-jump"
 269   and "jump-to-nav" accessibility links. To this end, the "jquery.mw-jump"
 270   is no longer loaded by default. The Vector and MonoBook skins have made a
 271   minor change to implement the toggle feature with CSS instead. To restore
 272   prior functionality, either explicitly load "jquery.mw-jump" in your skin
 273   or refer to T195256 for details on how to make the same change.
 274 * Hook 'EditPageBeforeEditChecks' was removed;
 275   use 'EditPageGetCheckboxesDefinition' instead.
 276 * Linker::getLinkColour() and DummyLinker::getLinkColour(), deprecated since
 277   1.28, were removed. LinkRenderer::getLinkClasses() should be used instead.
 278 * Wikimedia\Rdbms\LoadBalancer::getLaggedSlaveMode(), deprecated in 1.28, has
 279   been removed. Use Wikimedia\Rdbms\LoadBalancer::getLaggedReplicaMode()
 280   instead.
 281 * mw.widgets.CategoryMultiselectWidget now uses TagMultiselectWidget instead of
 282   CapsuleMultiselectWidget. The following methods may no longer be used:
 283   * setItemsFromData: Use setValue instead
 284   * getItemsData: Use getItems instead and get the data property
 285 * Two OutputPage methods, addMetadataLink() and getMetadataAttribute(), were
 286   removed.  Use addLink() instead.
 287 * Another two OutputPage methods, setPageTitleActionText() and
 288   getPageTitleActionText(), were removed.  They did nothing since 1.15 (almost
 289   ten years).  Use setHTMLTitle() directly.
 290 * All MagicWord static member variables have been removed.  Use appropriate
 291   hooks or MagicWordFactory methods instead.
 292 * MagicWord::clearCache() has been removed.  Instead, create a new
 293   MagicWordFactory, such as by calling
 294   resetServiceForTesting( 'MagicWordFactory' ) on a MediaWikiServices.
 295 * mw.util.init() has been removed. This function is not needed anymore and was
 296   a no-op function since 1.30.
 297 * SpecialPageFactory::resetList() is a no-op.  Call overrideMwServices()
 298   instead.
 299 * MediaWiki no longer supports a StartProfiler.php file.
 300   Define $wgProfiler via LocalSettings.php instead.
 301 * The mw.loader.addSource() is now considered a private method, and no longer
 302   supports the `id, url` signature. Use the `Object` parameter instead.
 303 * The backwards-compatibility code in HTMLForm to add a drop-down control to an
 304   option that is not set to be a drop-down if the "mw-chosen" class is present,
 305   is now removed.
 306 * Several collations were removed. They were workarounds for bugs in the ICU
 307   library and they are no longer needed (as of ICU 57.1):
 308   * 'uppercase-se' (NorthernSamiUppercaseCollation) - use 'uca-se' instead
 309   * 'xx-uca-et' (CollationEt) - use 'uca-et' instead
 310   * 'xx-uca-fa' (CollationFa) - use 'uca-fa' instead
 311 * The hooks 'SpecialRecentChangesFilters' & 'SpecialWatchlistFilters' deprecated
 312   in 1.23 were removed. Instead, use 'ChangesListSpecialPageStructuredFilters'.
 313   The ChangesListSpecialPage code for these legacy hooks, and their use in
 314   SpecialRecentchanges.php and SpecialWatchlist, was also removed:
 315   * ChangesListSpecialPage->getCustomFilters()
 316   * ChangesListSpecialPage->getFilterGroupDefinitionFromLegacyCustomFilters()
 317   * ChangesListSpecialPage::customFilters
 318 * The global function wfUseMW, deprecated since 1.26, has now been removed. Use
 319   the "requires" property of static extension registration instead.
 320 * $wgSpecialPages no longer accepts array syntax, deprecated since 1.18.
 321 * The MailAddress constructor can no longer be called with a User object,
 322   behaviour which has been deprecated since 1.24.
 323 * LBFactory, deprecated since 1.28, has been removed. Instead, use
 324   Wikimedia\Rdbms\LBFactory.
 325 * The MimeMagic class, deprecated since 1.28 has been removed. Get a
 326   MimeAnalyzer instance from MediaWikiServices instead.
 327 * The '--tidy' option to maintenance/parse.php has been removed.  Tidying
 328   the output is now the default.  Use '--no-tidy' to bypass the tidy
 329   phase.
 330 * The global function wfErrorLog, deprecated since 1.25, has now been removed.
 331   Use MWLoggerLegacyLogger::emit or UDPTransport.
 332  The hooks 'SpecialRecentChangesQuery' & 'SpecialWatchlistQuery', deprecated in
 333   1.23, were removed. Instead, use ChangesListSpecialPageStructuredFilters or
 334   ChangesListSpecialPageQuery.
 335
 336 === Deprecations in 1.32 ===
 337 * HTMLForm::setSubmitProgressive() is deprecated. No need to call it. Submit
 338   button is already marked as progressive.
 339 * Skin::setupSkinUserCss() is deprecated. Adding of modules to load
 340   has been centralised to Skin::getDefaultModules(), which is now capable
 341   of queueing style modules as well.
 342 * OutputPage::addModuleScripts() and ParserOutput::addModuleScripts are
 343   deprecated. Use addModules() instead.
 344 * Overriding SearchEngine::{searchText,searchTitle,searchArchiveTitle}
 345   in extending classes is deprecated.  Extend related doSearch* methods
 346   instead.
 347 * The following 'mediawiki.api' plugin modules were merged into mediawiki.api
 348   and deprecated: mediawiki.api.category, mediawiki.api.edit,
 349   mediawiki.api.login, mediawiki.api.options, mediawiki.api.parse,
 350   mediawiki.api.upload, mediawiki.api.user, mediawiki.api.watch,
 351   mediawiki.api.messages, and mediawiki.api.rollback.
 352 * ApiBase::truncateArray() is deprecated. No replacement, as nothing is known
 353   to use it.
 354 * WatchAction::getUnwatchToken is deprecated. Use WatchAction::getWatchToken
 355   with the 'unwatch' action parameter instead.
 356 * IcuCollation::getICUVersion() is deprecated, as you can just use the PHP
 357   constant INTL_ICU_VERSION directly in all versions that MediaWiki supports.
 358 * Parser::fetchFile() is deprecated. Use ::fetchFileAndTitle() instead.
 359 * The ApiQueryContributions class has been renamed to ApiQueryUserContribs.
 360 * The XMPInfo, XMPReader, and XMPValidate classes have been deprecated in favor
 361   of the namespaced classes provided by the wikimedia/xmp-reader library.
 362 * SearchResultSet::{next,rewind} are deprecated. Calling code should
 363   use foreach on the SearchResultSet, or the extractResults method. Extending
 364   code should override extractResults.
 365 * Instantiating SearchResultSet directly is deprecated. SearchEngine
 366   implementations must subclass SearchResultSet for their purposes.
 367 * SearchResult::setExtensionData argument has been changed from accepting an
 368   array to accepting a Closure that returns the array when called.
 369 * Class CryptRand, everything in MWCryptRand except generateHex() and function
 370   MediaWikiServices::getCryptRand() are deprecated, use random_bytes() to
 371   generate cryptographically secure random byte sequences.
 372 * Parser::getConverterLanguage() is deprecated.  Use ::getTargetLanguage()
 373   instead.
 374 * Language::markNoConversion() is deprecated.  It confused readers because
 375   it had unexpected behavior (only marking text if it looked like a URL)
 376   and was only used in a single place in the code.  Use
 377   LanguageConverter::markNoConversion() instead.
 378 * (T197492) Language::truncate() was soft deprecated in 1.31 and is
 379   hard deprecated in this release.  It has been split into two similar
 380   methods, Language::truncateForVisual() and Language::truncateForDatabase(),
 381   which measure length in characters and bytes, respectively.  Use
 382   Language::truncateForVisual() when possible to provide equity to users
 383   of multibyte scripts.
 384 * (T176526) EditPage::getContextTitle() falling back to $wgTitle when the
 385   context title is unset is now deprecated; anything creating an EditPage
 386   instance should set the context title via ::setContextTitle().
 387 * The 'jquery.hidpi' module (polyfill for IMG srcset) is deprecated.
 388 * ResourceLoaderStartUpModule::getStartupModules() and ::getLegacyModules()
 389   are deprecated. These concepts are obsolete and have no replacement.
 390 * String type for $lang of DifferenceEngine::setTextLanguage is deprecated.
 391 * The following methods of OutputPage are now deprecated in favour
 392   of using showFatalError directly: OutputPage::showFileDeleteError()
 393   OutputPage::showFileNotFoundError(), OutputPage::showFileRenameError()
 394   OutputPage::showFileCopyError() and OutputPage::showUnexpectedValueError().
 395 * The Replacer, DoubleReplacer, HashtableReplacer, and RegexlikeReplacer
 396   classes are now deprecated. Use a Closure instead.
 397 * (T194263) ContentHandler::makeParserOptions() is deprecated. Use
 398   WikiPage::makeParserOptions() or ParserOptions::newCanonical() instead.
 399 * (T100681) Use of the Parsoid v1 API with the VirtualRESTService, deprecated in
 400   MediaWiki 1.26,  is now hard-deprecated. All known clients were converted to
 401   the Parsoid v3 API in May 2015.
 402 * $input is deprecated in hook 'LogEventsListGetExtraInputs'. Use
 403   $formDescriptor instead.
 404 * SearchEngine::transformSearchTerm( $term ) should no longer be called prior
 405   to running searchText. This method was mainly implemented to support the
 406   'prefix' URI param in SpecialSearch, but there are no reasons to expose this
 407   logic as it should be handled internally by SearchEngine implementations
 408   supporting this feature. SearchEngine implementations should no longer
 409   override this methods.
 410 * SearchEngine::replacePrefixes( $query ) should no longer be called prior
 411   to running searchText/searchTitle.
 412 * (T199657) Messages for $wgFilterLogTypes labels should be no longer be in the
 413   'log-show-hide-[type]' format. Instead use 'logeventslist-[type]-log'.
 414 * Global functions  wfArrayFilter() and wfArrayFilterByKey() are deprecated.
 415   use array_filter() directly.
 416 * The $wgShowSQLErrors global is deprecated and nonfunctional.
 417   Set $wgShowExceptionDetails and/or $wgShowHostnames instead.
 418 * The $wgShowDBErrorBacktrace global is deprecated and nonfunctional.
 419   Set $wgShowExceptionDetails instead.
 420 * Public access to the DifferenceEngine properties mOldid, mNewid, mOldRev,
 421   mNewRev, mOldPage, mNewPage, mOldContent, mNewContent, mRevisionsLoaded,
 422   mTextLoaded and mCacheHit is deprecated. Use getOldid() / getNewid() /
 423   getOldRevision() / getNewRevision() for the first four (note that the
 424   revision ones return a RevisionRecord, not a Revision), do your own lookup
 425   for page/content.
 426 * The $wgExternalDiffEngine value 'wikidiff2' is deprecated. To use wikidiff2
 427   just enable the PHP extension, and it will be autodetected.
 428 * (T194731) DifferenceEngine properties mOldContent and mNewContent and methods
 429   setContent(), generateContentDiffBody(), generateTextDiffBody() and textDiff()
 430   are deprecated. To interact with a single slot, use a SlotDiffRenderer (and
 431   subclass it to customize diff rendering); to diff custom (e.g. unsaved)
 432   content, use setRevisions(). Subclassing DifferenceEngine should only be done
 433   to customize page-level diff properties (such as the navigation header).
 434 * The wfUseMW function, soft-deprecated in 1.26, is now hard deprecated.
 435 * All MagicWord static methods are now deprecated.  Use the MagicWordFactory
 436   methods instead.
 437 * PasswordFactory::init is deprecated. To get a password factory with the
 438   standard configuration, use MediaWikiServices::getPasswordFactory.
 439 * $wgContLang is deprecated, use MediaWikiServices::getContentLanguage()
 440   instead.
 441 * $wgParser is deprecated, use MediaWikiServices::getParser() instead.
 442 * wfGetMainCache() is deprecated, use ObjectCache::getLocalClusterInstance()
 443   instead.
 444 * wfGetCache() is deprecated, use ObjectCache::getInstance() instead.
 445 * All SpecialPageFactory static methods are deprecated. Instead, call the
 446   methods on a SpecialPageFactory instance, which may be obtained from
 447   MediaWikiServices.
 448 * mw.user.stickyRandomId was renamed to the more explicit
 449   mw.user.getPageviewToken to better capture its function.
 450 * Passing Revision objects to ContentHandler::getUndoContent() is deprecated,
 451   Content object should be passed instead.
 452 * (T197179) Parameters 'notice', 'notice-messages', 'notice-message',
 453   previously used by OOUI HTMLForm fields, are now deprecated. Use
 454   'help', 'help-message', 'help-messages' instead.
 455 * (T197179) HTMLFormField::getNotices() is now deprecated.
 456 * The jquery.localize module is now deprecated. Use jquery.i18n instead.
 457 * The SecondaryDataUpdates hook was deprecated in favor of RevisionDataUpdates,
 458   or overriding ContentHandler::getSecondaryDataUpdates (T194038).
 459 * The WikiPageDeletionUpdates hook was deprecated in favor of
 460   PageDeletionDataUpdates, or overriding ContentHandler::getDeletionDataUpdates
 461   (T194038).
 462 * Content::getSecondaryDataUpdates has been deprecated in favor of
 463   ContentHandler::getSecondaryDataUpdates() for overriding by extensions
 464   (T194038).
 465   Application logic should call WikiPage::doSecondaryDataUpdates() (T194037).
 466 * Content::getDeletionUpdates has been deprecated in favor of
 467   ContentHandler::getDeletionUpdates() for overriding by extensions (T194038).
 468   Application logic should call WikiPage::doSecondaryDataUpdates() (T194037).
 469 * (T198214) Old Tidy-related configuration settings, which were soft-deprecated
 470   in MediaWiki 1.26, have now been hard deprecated. This affects $wgUseTidy,
 471   $wgTidyBin, $wgTidyConf, $wgTidyOpts, $wgTidyInternal, and $wgDebugTidy. Use
 472   $wgTidyConfig instead.
 473 * All Tidy configurations other than Remex have been hard deprecated;
 474   future parsers will not emit compatible output for these configurations.
 475 * QuickTemplate::msgHtml() and BaseTemplate::msgHtml() have been deprecated
 476   as they promote bad practises. I18n messages should always be properly
 477   escaped.
 478 * Skin::getDynamicStylesheetQuery() has been deprecated. It always
 479   returns action=raw&ctype=text/css which callers should use directly.
 480 * Class LegacyFormatter is deprecated.
 481 * Use of CommentStore::insertWithTempTable() with 'img_description' is
 482   deprecated. Use CommentStore::insert() instead.
 483 * Language::setCode is deprecated as public function. Use Language::factory
 484   to create a new Language object with a different language code.
 485 * Several classes have been moved from the MediaWiki\Storage\ namespace to the
 486   MediaWiki\Revision\ namespace. The old class names are aliased for
 487   compatibility, but are deprecated. Classes are IncompleteRevisionException,
 488   MutableRevisionRecord, MutableRevisionSlots, RevisionAccessException,
 489   RevisionArchiveRecord, RevisionFactory, RevisionLookup, RevisionRecord,
 490   RevisionSlots, RevisionStore, RevisionStoreRecord, SlotRecord, and
 491   SuppressedDataException.
 492
 493 === Other changes in 1.32 ===
 494 * (T198811) The following tables have had their UNIQUE indexes turned into
 495   proper PRIMARY KEYs for increased maintainability: interwiki, page_props,
 496   protected_titles and site_identifiers.
 497 * OOUI HTMLForm will now display help text inline after the input field,
 498   rather than in a popup. Previous behavior can be restored by using
 499   `'help-inline' => false`.
 500 * The archive table's ar_rev_id field is now unique.
 501 * Special:BotPasswords now requires reauthentication.
 502 * (T174023) Multi-Content Revision (MCR) capabilities were introduced into the
 503   storage layer and have basic support for display. No user interface exists
 504   yet for creating or managing content in slots beides the main slot. See
 505   <https://www.mediawiki.org/wiki/Multi-Content_Revisions> for more
 506   information.
 507 * The image_comment_temp database table is merged into the image table and
 508   deprecated. Since access should be mediated by the CommentStore class, this
 509   change shouldn't affect external code.
 510 * (T206147) Database::close() will no longer commit any open transactions.
 511
 512 == Compatibility ==
 513 MediaWiki 1.32 requires PHP 7.0.0 or later. Although HHVM 3.18.5 or later is
 514 supported, it is generally advised to use PHP 7.0.0 or later for long term
 515 support.
 516
 517 MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
 518 but support for them is somewhat less mature. There is experimental support for
 519 Oracle and Microsoft SQL Server.
 520
 521 The supported versions are:
 522
 523 * MySQL 5.5.8 or later
 524 * PostgreSQL 9.2 or later
 525 * SQLite 3.3.7 or later
 526 * Oracle 9.0.1 or later
 527 * Microsoft SQL Server 2005 (9.00.1399)
 528
 529 == Upgrading ==
 530 1.32 has several database changes since 1.31, and will not work without schema
 531 updates. Note that due to changes to some very large tables like the revision
 532 table, the schema update may take quite long (minutes on a medium sized site,
 533 many hours on a large site).
 534
 535 Don't forget to always back up your database before upgrading!
 536
 537 See the file UPGRADE for more detailed upgrade instructions, including
 538 important information when upgrading from versions prior to 1.11.
 539
 540 For notes on 1.31.x and older releases, see HISTORY.
 541
 542 == Online documentation ==
 543 Documentation for both end-users and site administrators is available on
 544 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 545 for pages that explicitly state that their contents are in the public domain):
 546
 547        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 548
 549 == Mailing list ==
 550 A mailing list is available for MediaWiki user support and discussion:
 551
 552        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 553
 554 A low-traffic announcements-only list is also available:
 555
 556        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 557
 558 It's highly recommended that you sign up for one of these lists if you're
 559 going to run a public MediaWiki, so you can be notified of security fixes.
 560
 561 == IRC help ==
 562 There's usually someone online in #mediawiki on irc.freenode.net.