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 * $wgActorTableSchemaMigrationStage no longer accepts MIGRATION_WRITE_BOTH or
  44   MIGRATION_WRITE_NEW. It instead uses SCHEMA_COMPAT_WRITE_BOTH |
  45   SCHEMA_COMPAT_READ_OLD and SCHEMA_COMPAT_WRITE_BOTH | SCHEMA_COMPAT_READ_NEW
  46   for intermediate stages of migration.
  47
  48 ==== Removed configuration ====
  49 * $wgEnableAPI and $wgEnableWriteAPI – These settings, deprecated in 1.31,
  50   have been removed. (T115414)
  51 * $wgSiteSupportPage – This setting, unused since 1.5, was removed.
  52 * $wgBrowserBlacklist – This setting, deprecated in 1.30, was removed.
  53 * $wgExperimentalHtmlIds – This setting, deprecated since 1.30, was removed.
  54   The 'html5-legacy' value for $wgFragmentMode is no longer accepted.
  55 * $wgPasswordSenderName - This setting, ignored since 1.23 by MediaWiki and
  56   most extensions, is no longer set. Instead, you can modify the system
  57   message `emailsender`.
  58 * $wgTidyConfig – The experimental Html5Internal and Html5Depurate tidy drivers
  59   were removed. RemexHtml, which is the default, should be used instead.
  60
  61 === New features in 1.32 ===
  62 * (T112474) Generalized the ResourceLoader mechanism for overriding modules
  63   using a particular page during edit previews.
  64 * (T12331) You can now log page creation events by setting $wgPageCreationLog
  65   to true.
  66 * Added 'ApiParseMakeOutputPage' hook.
  67 * (T174313) Added checkbox on Special:ListUsers to display only users in
  68   temporary user groups.
  69 * (T152462) A cookie can now be set when an IP user is blocked to track that
  70   user if they move to a new IP address. This is disabled by default.
  71 * (T194950) Added 'ApiMaxLagInfo' hook.
  72 * SpecialPage::checkLoginSecurityLevel() will now preserve POST data when
  73   reauthenticating.
  74 * FormSpecialPage::execute() will now call checkLoginSecurityLevel() if
  75   getLoginSecurityLevel() returns non-false.
  76 * The 'ImageBeforeProduceHTML' hook is now passed three new parameters, $parser,
  77   &$query and &$widthOption, allowing extensions even finer control over the
  78   resulting HTML code.
  79 * Added new 'ArticleShowPatrolFooter' hook, which allows extensions to determine
  80   if the [mark as patrolled] link should be shown at the footer of patrollable
  81   pages.
  82 * The array of hidden options ($opts) passed to the 'SpecialSearchPowerBox' hook
  83   is now passed by reference, allowing extensions to modify or even unset it.
  84 * Added new 'OutputPageAfterGetHeadLinksArray' hook, allowing extensions to
  85   modify the return value of OutputPage#getHeadLinksArray in order to add,
  86   remove or otherwise alter the elements to be output in the page <head>.
  87 * (T28934) The 'HistoryPageToolLinks' hook allows extensions to append
  88   additional links to the subtitle of a history page.
  89 * The 'GetLinkColours' hook now receives an additional $title parameter,
  90   the Title object of the page being parsed, on which the links will be shown.
  91 * (T194731) DifferenceEngine supports multiple slots. Added SlotDiffRenderer to
  92   render diffs between two Content objects, and DifferenceEngine::setRevisions()
  93   to render diffs between two custom (potentially multi-content) revisions.
  94   Added GetSlotDiffRenderer hook which works like GetDifferenceEngine for slots.
  95 * Added a temporary action=mcrundo to the web UI, as the normal undo logic
  96   can't yet handle MCR and deadlines are forcing is to put off fixing that.
  97   This action should be considered deprecated and should not be used directly.
  98 * Extensions overriding ContentHandler::getUndoContent() will need to be
  99   updated for the changed method signature.
 100 * Added a new hook, 'UserGetRightsRemove', which can be used to remove rights
 101   from user. Unlike the 'UserGetRights' it will ensure that removed rights
 102   will not be reinserted.
 103
 104 === External library changes in 1.32 ===
 105
 106 ==== New external libraries ====
 107 * Added wikimedia/xmp-reader 0.6.0.
 108 * Added Add pear/Net_SMTP 1.8.0.
 109 * …
 110
 111 ==== Changed external libraries ====
 112 * Updated qunitjs from 2.4.0 to 2.6.2.
 113 * Updated wikimedia/scoped-callback from 1.0.0 to 2.0.0.
 114 ** ScopedCallback objects can no longer be serialized.
 115 * Updated wikimedia/wrappedstring from 2.3.0 to 3.0.1.
 116 * Updated mediawiki/mediawiki-codesniffer from v20.0.0 to v21.0.0.
 117 * Updated composer/spdx-licenses from 1.3.0 to 1.4.0.
 118 * Updated jquery.i18n from 1.0.4 to 1.0.5.
 119 * Updated wikimedia/timestamp from 1.0.0 to 2.2.0.
 120 * Updated wikimedia/remex-html from 1.0.3 to 2.0.0.
 121 * Updated jquery from v3.2.1 to v3.3.1.
 122
 123 ==== Removed external libraries ====
 124 * pear/mail_mime-decode was removed.
 125 * …
 126
 127 === Bug fixes in 1.32 ===
 128 * SpecialPage::execute() will now only call checkLoginSecurityLevel() if
 129   getLoginSecurityLevel() returns non-false.
 130 * (T43720, T46197) Improved page display title handling for category pages
 131 * (T65080) Fixed resetting options of some types via API action=options.
 132
 133 === Action API changes in 1.32 ===
 134 * Added templated parameters.
 135   * A module can define a templated parameter like "{fruit}-quantity", where
 136     the actual parameters recognized correspond to the values of a multi-valued
 137     parameter. Then clients can make requests like
 138     "fruits=apples|bananas&apples-quantity=1&bananas-quantity=5".
 139   * action=paraminfo will return templated parameter definitions separately
 140     from normal parameters. All parameter definitions now include an "index"
 141     key to allow clients to maintain parameter ordering when merging normal and
 142     templated parameters.
 143 * It is now an error to submit too many values for a multi-valued parameter.
 144   This has generated a warning since MediaWiki 1.14.
 145 * Assertion failures from the 'assert' and 'assertuser' parameters will no
 146   longer use the action module's custom response format, for the few modules
 147   that use custom formatters that handle errors.
 148 * (T198935) User list preferences such as `email-blacklist` and similar
 149   extension preferences are no longer represented as arrays when returned by
 150   action=query&meta=userinfo&uiprop=options.
 151 * 'missingparam' errors will now use the prefixed parameter name in the code
 152   and error text, e.g. "noxxfoo" and "The 'xxfoo' parameter must be set" rather
 153   than "nofoo" and "The 'foo' parameter must be set".
 154 * action=query&prop=revisions now takes a 'rvslots' parameter to indicate the
 155   multi-content revision slots for which content should be returned. It also
 156   has a new rvprop, 'roles', to indicate which roles have slots. A deprecation
 157   warning will be issued if rvprop=content or rvprop=contentmodel are used
 158   without rvslots.
 159 * The rvcontentformat parameter to action=query&prop=revisions has been
 160   deprecated. Clients should be prepared to deal with the default format for
 161   relevant models.
 162 * Use of the deprecated parameters rvexpandtemplates, rvgeneratexml, rvparse,
 163   rvdiffto, rvdifftotext, rvdifftotextpst, rvcontentformat, or the deprecated
 164   rvprop=parsetree is forbidden with the new 'rvslots' parameter.
 165 * action=query&prop=deletedrevisions, action=query&list=allrevisions, and
 166   action=query&list=alldeletedrevisions are changed similarly to
 167   &prop=revisions (see the three previous items).
 168 * (T174032) action=compare now supports multi-content revisions.
 169   * It has a 'slots' parameter to select diffing of individual slots. The
 170     default behavior is to return one combined diff.
 171   * The 'fromtext', 'fromsection', 'fromcontentmodel', 'fromcontentformat',
 172     'totext', 'tosection', 'tocontentmodel', and 'tocontentformat' parameters
 173     are deprecated. Specify the new 'fromslots' and 'toslots' to identify which
 174     slots have text supplied and the corresponding templated parameters for
 175     each slot.
 176   * The behavior of 'fromsection' and 'tosection' of extracting one section's
 177     content is not being preserved. 'fromsection-{slot}' and 'tosection-{slot}'
 178     instead expand the given text as if for a section edit. This effectively
 179     declines T183823 in favor of T185723.
 180 * (T198214) The 'disabletidy' parameter to action=parse has been
 181   deprecated; untidy output will not be supported by future wikitext
 182   parsers.
 183
 184 === Action API internal changes in 1.32 ===
 185 * Added 'ApiParseMakeOutputPage' hook.
 186 * Parameter names may no longer contain '{' or '}', as these are now used for
 187   templated parameters.
 188 * (T194950) Added 'ApiMaxLagInfo' hook.
 189 * The following methods now take a RevisionRecord rather than a Revision. No
 190   external callers are known.
 191   * ApiFeedContributions::feedItemAuthor()
 192   * ApiFeedContributions::feedItemDesc()
 193   * ApiQueryRevisionsBase::extractRevisionInfo()
 194
 195 === Languages updated in 1.32 ===
 196 MediaWiki supports over 350 languages. Many localisations are updated regularly.
 197 Below only new and removed languages are listed, as well as changes to languages
 198 because of Phabricator reports.
 199
 200 * (T193566) Added language support for Ambonese Malay (abs).
 201 * (T194047) Added language support for Shawiya, Latin script (shy-latn).
 202 * (T195940) Added language support for Batak Mandailing (btm).
 203 * (T137491) Added language support for Standard Moroccan Amazigh (zgh).
 204 * (T198132) Added language support for Manipuri (mni).
 205 * (T201276) Added language support for Western Armenian (hyw).
 206 * (T201583) Added language support for Mon (mnw).
 207
 208 === Breaking changes in 1.32 ===
 209 * $wgRequestTime, deprecated in 1.25, was removed. Use
 210   $_SERVER['REQUEST_TIME_FLOAT'] or WebRequest::getElapsedTime() instead.
 211 * The MediaWikiI18N class, deprecated in 1.31, was removed.
 212 * QuickTemplate::setTranslator(), deprecated in 1.31, was removed. Use
 213   Skin::msg() instead.
 214 * wfInitShellLocale(), deprecated in 1.30, was removed.
 215 * wfShellExecDisabled(), deprecated in 1.30, was removed.
 216 * The type string for the parameter $lang of DateFormatter::getInstance,
 217   deprecated in 1.31, was removed.
 218 * The EDIT_TOKEN_SUFFIX constant deprecated in 1.27, was removed. Use
 219   MediaWiki\Session\Token::SUFFIX instead.
 220 * EditPage::isOouiEnabled() deprecated in 1.30, was removed.
 221 * mw.util.wikiGetlink(), deprecated in 1.23, was removed. Use mw.util.getUrl()
 222   instead.
 223 * (T61113) The following methods and constants from the Revision class, which
 224   were deprecated in 1.25, have now been removed:
 225   * Revision::getRawUser()
 226   * Revision::getRawUserText()
 227   * Revision::getRawComment()
 228 * window.gM() from mediawiki.jqueryMsg, deprecated in 1.23, was removed. Use
 229   mw.msg() or mw.message() instead.
 230 * mw.util.escapeId(), deprecated in 1.30, was removed. Use
 231   mw.util.escapeIdForAttribute or mw.util.escapeIdForLink instead.
 232 * mw.util.updateTooltipAccessKeys(), deprecated in 1.24, was removed. Use
 233   jquery.accessKeyLabel instead.
 234 * The SqlDataUpdate class, deprecated in 1.28, has been removed.
 235 * The Html5Internal and Html5Depurate tidy driver classes were removed, along
 236   with the Balancer tidy implementation. Both implementations were experimental,
 237   and were replaced by RemexHtml.
 238 * (T179624) Job::insert() and ::batchInsert(), deprecated in 1.21, were both
 239   removed. Use JobQueueGroup::singleton()->push() instead.
 240 * The jquery.footHovzer module, for mediawiki.debug, was removed.
 241 * The es5-shim module, empty and deprecated since 1.29, was removed.
 242 * the dom-level2-shim module, empty and deprecated since 1.29, was removed.
 243 * the json module, empty and deprecated since 1.29, was removed.
 244 * The mediawiki.widgets.visibleByteLimit module alias, deprecated in 1.32, was
 245   removed. Use mediawiki.widgets.visibleLengthLimit instead.
 246 * The jquery.farbtastic module, unused since 1.18, was removed.
 247 * The 'jquery.expandableField' module, unused since 1.22, was removed.
 248 * (T181318) The $wgStyleVersion setting and its appendage to various script and
 249   style URLs in OutputPage, deprecated in 1.31, was removed.
 250 * The hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend' may provide
 251   any HTMLForm object rather than PreferencesForm.
 252 * The non namespaced TimestampException class, deprecated in 1.29, was removed.
 253   Use Wikimedia\Timestamp\TimestampException instead.
 254 * The global functions codepointToUtf8, hexSequenceToUtf8, utf8ToHexSequence,
 255   utf8ToCodepoint, and escapeSingleString (deprecated in 1.25) were removed.
 256   The UtfNormal\Utils class from the utfnormal library should be used instead.
 257 * The deprecated UTF8_ and UNICODE_ constants were removed. The class constants
 258   from the UtfNormal\Constants class from the utfnormal library should be used
 259 * (T140807) The wgResourceLoaderLESSImportPaths configuration option was removed
 260   from ResourceLoader. Instead, use `@import` statements in LESS to import
 261   files directly from nearby directories within the same project.
 262 * (T140804) The wgResourceLoaderLESSVars configuration option, deprecated
 263   since 1.30, was removed. Instead, to expose variables from PHP to LESS, use
 264   the ResourceLoaderModule::getLessVars() method.
 265 * The protected methods PHPSessionHandler::returnSuccess() and returnFailure(),
 266   only needed for PHP5 compatibility, have been removed. It now uses the boolean
 267   values `true` and `false` respectively.
 268 * The $parserMemc global and wfGetParserCacheStorage(), deprecated since 1.30,
 269   were removed. Use the ParserCache class instead.
 270 * ScopedCallback (deprecated in 1.28) was removed. Use Wikimedia\ScopedCallback
 271   instead.
 272 * Support for ResourceLoaderModule::getModifiedTime() and getModifiedHash(),
 273   deprecated since 1.26, was removed. Use getDefinitionSummary() instead.
 274 * (T195256) Skins are recommended not to rely on JavaScript for the "mw-jump"
 275   and "jump-to-nav" accessibility links. To this end, the "jquery.mw-jump"
 276   is no longer loaded by default. The Vector and MonoBook skins have made a
 277   minor change to implement the toggle feature with CSS instead. To restore
 278   prior functionality, either explicitly load "jquery.mw-jump" in your skin
 279   or refer to T195256 for details on how to make the same change.
 280 * Hook 'EditPageBeforeEditChecks' was removed;
 281   use 'EditPageGetCheckboxesDefinition' instead.
 282 * Linker::getLinkColour() and DummyLinker::getLinkColour(), deprecated since
 283   1.28, were removed. LinkRenderer::getLinkClasses() should be used instead.
 284 * Wikimedia\Rdbms\LoadBalancer::getLaggedSlaveMode(), deprecated in 1.28, has
 285   been removed. Use Wikimedia\Rdbms\LoadBalancer::getLaggedReplicaMode()
 286   instead.
 287 * mw.widgets.CategoryMultiselectWidget now uses TagMultiselectWidget instead of
 288   CapsuleMultiselectWidget. The following methods may no longer be used:
 289   * setItemsFromData: Use setValue instead
 290   * getItemsData: Use getItems instead and get the data property
 291 * Two OutputPage methods, addMetadataLink() and getMetadataAttribute(), were
 292   removed.  Use addLink() instead.
 293 * Another two OutputPage methods, setPageTitleActionText() and
 294   getPageTitleActionText(), were removed.  They did nothing since 1.15 (almost
 295   ten years).  Use setHTMLTitle() directly.
 296 * All MagicWord static member variables have been removed.  Use appropriate
 297   hooks or MagicWordFactory methods instead.
 298 * MagicWord::clearCache() has been removed.  Instead, create a new
 299   MagicWordFactory, such as by calling
 300   resetServiceForTesting( 'MagicWordFactory' ) on a MediaWikiServices.
 301 * mw.util.init() has been removed. This function is not needed anymore and was
 302   a no-op function since 1.30.
 303 * SpecialPageFactory::resetList() is a no-op.  Call overrideMwServices()
 304   instead.
 305 * MediaWiki no longer supports a StartProfiler.php file.
 306   Define $wgProfiler via LocalSettings.php instead.
 307 * The mw.loader.addSource() is now considered a private method, and no longer
 308   supports the `id, url` signature. Use the `Object` parameter instead.
 309 * The backwards-compatibility code in HTMLForm to add a drop-down control to an
 310   option that is not set to be a drop-down if the "mw-chosen" class is present,
 311   is now removed.
 312 * Several collations were removed. They were workarounds for bugs in the ICU
 313   library and they are no longer needed (as of ICU 57.1):
 314   * 'uppercase-se' (NorthernSamiUppercaseCollation) - use 'uca-se' instead
 315   * 'xx-uca-et' (CollationEt) - use 'uca-et' instead
 316   * 'xx-uca-fa' (CollationFa) - use 'uca-fa' instead
 317 * The hooks 'SpecialRecentChangesFilters' & 'SpecialWatchlistFilters' deprecated
 318   in 1.23 were removed. Instead, use 'ChangesListSpecialPageStructuredFilters'.
 319   The ChangesListSpecialPage code for these legacy hooks, and their use in
 320   SpecialRecentchanges.php and SpecialWatchlist, was also removed:
 321   * ChangesListSpecialPage->getCustomFilters()
 322   * ChangesListSpecialPage->getFilterGroupDefinitionFromLegacyCustomFilters()
 323   * ChangesListSpecialPage::customFilters
 324 * The global function wfUseMW, deprecated since 1.26, has now been removed. Use
 325   the "requires" property of static extension registration instead.
 326 * $wgSpecialPages no longer accepts array syntax, deprecated since 1.18.
 327 * The MailAddress constructor can no longer be called with a User object,
 328   behaviour which has been deprecated since 1.24.
 329 * LBFactory, deprecated since 1.28, has been removed. Instead, use
 330   Wikimedia\Rdbms\LBFactory.
 331 * The MimeMagic class, deprecated since 1.28 has been removed. Get a
 332   MimeAnalyzer instance from MediaWikiServices instead.
 333 * The '--tidy' option to maintenance/parse.php has been removed.  Tidying
 334   the output is now the default.  Use '--no-tidy' to bypass the tidy
 335   phase.
 336 * The global function wfErrorLog, deprecated since 1.25, has now been removed.
 337   Use MWLoggerLegacyLogger::emit or UDPTransport.
 338 * The hooks 'SpecialRecentChangesQuery' & 'SpecialWatchlistQuery', deprecated in
 339   1.23, were removed. Instead, use ChangesListSpecialPageStructuredFilters or
 340   ChangesListSpecialPageQuery.
 341 * The global function wfUsePHP, deprecated since 1.30, has now been removed. To
 342   assert a newer version of PHP than MediaWiki does, use extension registration.
 343 * The hook 'ChangesListSpecialPageFilters', deprecated in 1.29, has now been
 344   removed. Use the 'ChangesListSpecialPageStructuredFilters' hook instead.
 345 * DeferredUpdates::setImmediateMode(), deprecated since 1.29, has been removed.
 346 * File / MediaHandler::getStreamHeaders(), deprecated since 1.30, was removed.
 347 * The hook 'DoEditSectionLink', deprecated since 1.25, has been removed. Use
 348   the hook 'SkinEditSectionLinks' instead.
 349 * The hook 'UserGetImplicitGroups', deprecated since 1.25, has been removed.
 350 * The global function wfRunHooks, deprecated since 1.25, has now been removed.
 351   Use Hooks::run().
 352 * The hook 'UnknownAction', deprecated since 1.19, has now been removed.
 353 * The hook 'ParserLimitReport', deprecated since 1.22, has been removed. Use
 354   the hooks 'ParserLimitReportPrepare' and 'ParserLimitReportFormat' instead.
 355
 356 === Deprecations in 1.32 ===
 357 * HTMLForm::setSubmitProgressive() is deprecated. No need to call it. Submit
 358   button is already marked as progressive.
 359 * Skin::setupSkinUserCss() is deprecated. Adding of modules to load
 360   has been centralised to Skin::getDefaultModules(), which is now capable
 361   of queueing style modules as well.
 362 * OutputPage::addModuleScripts() and ParserOutput::addModuleScripts are
 363   deprecated. Use addModules() instead.
 364 * Overriding SearchEngine::{searchText,searchTitle,searchArchiveTitle}
 365   in extending classes is deprecated.  Extend related doSearch* methods
 366   instead.
 367 * The following 'mediawiki.api' plugin modules were merged into mediawiki.api
 368   and deprecated: mediawiki.api.category, mediawiki.api.edit,
 369   mediawiki.api.login, mediawiki.api.options, mediawiki.api.parse,
 370   mediawiki.api.upload, mediawiki.api.user, mediawiki.api.watch,
 371   mediawiki.api.messages, and mediawiki.api.rollback.
 372 * ApiBase::truncateArray() is deprecated. No replacement, as nothing is known
 373   to use it.
 374 * WatchAction::getUnwatchToken is deprecated. Use WatchAction::getWatchToken
 375   with the 'unwatch' action parameter instead.
 376 * IcuCollation::getICUVersion() is deprecated, as you can just use the PHP
 377   constant INTL_ICU_VERSION directly in all versions that MediaWiki supports.
 378 * Parser::fetchFile() is deprecated. Use ::fetchFileAndTitle() instead.
 379 * The ApiQueryContributions class has been renamed to ApiQueryUserContribs.
 380 * The XMPInfo, XMPReader, and XMPValidate classes have been deprecated in favor
 381   of the namespaced classes provided by the wikimedia/xmp-reader library.
 382 * SearchResultSet::{next,rewind} are deprecated. Calling code should
 383   use foreach on the SearchResultSet, or the extractResults method. Extending
 384   code should override extractResults.
 385 * Instantiating SearchResultSet directly is deprecated. SearchEngine
 386   implementations must subclass SearchResultSet for their purposes.
 387 * SearchResult::setExtensionData argument has been changed from accepting an
 388   array to accepting a Closure that returns the array when called.
 389 * Class CryptRand, everything in MWCryptRand except generateHex() and function
 390   MediaWikiServices::getCryptRand() are deprecated, use random_bytes() to
 391   generate cryptographically secure random byte sequences.
 392 * Parser::getConverterLanguage() is deprecated.  Use ::getTargetLanguage()
 393   instead.
 394 * Language::markNoConversion() is deprecated.  It confused readers because
 395   it had unexpected behavior (only marking text if it looked like a URL)
 396   and was only used in a single place in the code.  Use
 397   LanguageConverter::markNoConversion() instead.
 398 * (T197492) Language::truncate() was soft deprecated in 1.31 and is
 399   hard deprecated in this release.  It has been split into two similar
 400   methods, Language::truncateForVisual() and Language::truncateForDatabase(),
 401   which measure length in characters and bytes, respectively.  Use
 402   Language::truncateForVisual() when possible to provide equity to users
 403   of multibyte scripts.
 404 * (T176526) EditPage::getContextTitle() falling back to $wgTitle when the
 405   context title is unset is now deprecated; anything creating an EditPage
 406   instance should set the context title via ::setContextTitle().
 407 * The 'jquery.hidpi' module (polyfill for IMG srcset) is deprecated.
 408 * ResourceLoaderStartUpModule::getStartupModules() and ::getLegacyModules()
 409   are deprecated. These concepts are obsolete and have no replacement.
 410 * String type for $lang of DifferenceEngine::setTextLanguage is deprecated.
 411 * The following methods of OutputPage are now deprecated in favour
 412   of using showFatalError directly: OutputPage::showFileDeleteError()
 413   OutputPage::showFileNotFoundError(), OutputPage::showFileRenameError()
 414   OutputPage::showFileCopyError() and OutputPage::showUnexpectedValueError().
 415 * The Replacer, DoubleReplacer, HashtableReplacer, and RegexlikeReplacer
 416   classes are now deprecated. Use a Closure instead.
 417 * (T194263) ContentHandler::makeParserOptions() is deprecated. Use
 418   WikiPage::makeParserOptions() or ParserOptions::newCanonical() instead.
 419 * (T100681) Use of the Parsoid v1 API with the VirtualRESTService, deprecated in
 420   MediaWiki 1.26,  is now hard-deprecated. All known clients were converted to
 421   the Parsoid v3 API in May 2015.
 422 * $input is deprecated in hook 'LogEventsListGetExtraInputs'. Use
 423   $formDescriptor instead.
 424 * SearchEngine::transformSearchTerm( $term ) should no longer be called prior
 425   to running searchText. This method was mainly implemented to support the
 426   'prefix' URI param in SpecialSearch, but there are no reasons to expose this
 427   logic as it should be handled internally by SearchEngine implementations
 428   supporting this feature. SearchEngine implementations should no longer
 429   override this methods.
 430 * SearchEngine::replacePrefixes( $query ) should no longer be called prior
 431   to running searchText/searchTitle.
 432 * (T199657) Messages for $wgFilterLogTypes labels should be no longer be in the
 433   'log-show-hide-[type]' format. Instead use 'logeventslist-[type]-log'.
 434 * Global functions  wfArrayFilter() and wfArrayFilterByKey() are deprecated.
 435   use array_filter() directly.
 436 * The $wgShowSQLErrors global is deprecated and nonfunctional.
 437   Set $wgShowExceptionDetails and/or $wgShowHostnames instead.
 438 * The $wgShowDBErrorBacktrace global is deprecated and nonfunctional.
 439   Set $wgShowExceptionDetails instead.
 440 * Public access to the DifferenceEngine properties mOldid, mNewid, mOldRev,
 441   mNewRev, mOldPage, mNewPage, mOldContent, mNewContent, mRevisionsLoaded,
 442   mTextLoaded and mCacheHit is deprecated. Use getOldid() / getNewid() /
 443   getOldRevision() / getNewRevision() for the first four (note that the
 444   revision ones return a RevisionRecord, not a Revision), do your own lookup
 445   for page/content.
 446 * The $wgExternalDiffEngine value 'wikidiff2' is deprecated. To use wikidiff2
 447   just enable the PHP extension, and it will be autodetected.
 448 * (T194731) DifferenceEngine properties mOldContent and mNewContent and methods
 449   setContent(), generateContentDiffBody(), generateTextDiffBody() and textDiff()
 450   are deprecated. To interact with a single slot, use a SlotDiffRenderer (and
 451   subclass it to customize diff rendering); to diff custom (e.g. unsaved)
 452   content, use setRevisions(). Subclassing DifferenceEngine should only be done
 453   to customize page-level diff properties (such as the navigation header).
 454 * The wfUseMW function, soft-deprecated in 1.26, is now hard deprecated.
 455 * All MagicWord static methods are now deprecated.  Use the MagicWordFactory
 456   methods instead.
 457 * PasswordFactory::init is deprecated. To get a password factory with the
 458   standard configuration, use MediaWikiServices::getPasswordFactory.
 459 * $wgContLang is deprecated, use MediaWikiServices::getContentLanguage()
 460   instead.
 461 * $wgParser is deprecated, use MediaWikiServices::getParser() instead.
 462 * wfGetMainCache() is deprecated, use ObjectCache::getLocalClusterInstance()
 463   instead.
 464 * wfGetCache() is deprecated, use ObjectCache::getInstance() instead.
 465 * All SpecialPageFactory static methods are deprecated. Instead, call the
 466   methods on a SpecialPageFactory instance, which may be obtained from
 467   MediaWikiServices.
 468 * mw.user.stickyRandomId was renamed to the more explicit
 469   mw.user.getPageviewToken to better capture its function.
 470 * Passing Revision objects to ContentHandler::getUndoContent() is deprecated,
 471   Content object should be passed instead.
 472 * (T197179) Parameters 'notice', 'notice-messages', 'notice-message',
 473   previously used by OOUI HTMLForm fields, are now deprecated. Use
 474   'help', 'help-message', 'help-messages' instead.
 475 * (T197179) HTMLFormField::getNotices() is now deprecated.
 476 * The jquery.localize module is now deprecated. Use jquery.i18n instead.
 477 * The SecondaryDataUpdates hook was deprecated in favor of RevisionDataUpdates,
 478   or overriding ContentHandler::getSecondaryDataUpdates (T194038).
 479 * The WikiPageDeletionUpdates hook was deprecated in favor of
 480   PageDeletionDataUpdates, or overriding ContentHandler::getDeletionDataUpdates
 481   (T194038).
 482 * Content::getSecondaryDataUpdates has been deprecated in favor of
 483   ContentHandler::getSecondaryDataUpdates() for overriding by extensions
 484   (T194038).
 485   Application logic should call WikiPage::doSecondaryDataUpdates() (T194037).
 486 * Content::getDeletionUpdates has been deprecated in favor of
 487   ContentHandler::getDeletionUpdates() for overriding by extensions (T194038).
 488   Application logic should call WikiPage::doSecondaryDataUpdates() (T194037).
 489 * (T198214) Old Tidy-related configuration settings, which were soft-deprecated
 490   in MediaWiki 1.26, have now been hard deprecated. This affects $wgUseTidy,
 491   $wgTidyBin, $wgTidyConf, $wgTidyOpts, $wgTidyInternal, and $wgDebugTidy. Use
 492   $wgTidyConfig instead.
 493 * All Tidy configurations other than Remex have been hard deprecated;
 494   future parsers will not emit compatible output for these configurations.
 495 * (T198214) OutputPage::addWikiText(), OutputPage::addWikiTextWithTitle(),
 496   and OutputPage::addWikiTextTitle() have been deprecated, since they
 497   can result in untidy output.  In addition OutputPage::addWikiTextTidy()
 498   and OutputPage::addWikiTextTitleTidy() was deprecated to make naming new
 499   methods consistent.  Use OutputPage::addWikiTextAsInterface() or
 500   OutputPage::addWikiTextAsContent() instead, which ensures the output is
 501   tidy and clarifies whether content-language specific postprocessing should
 502   be done on the text.
 503 * QuickTemplate::msgHtml() and BaseTemplate::msgHtml() have been deprecated
 504   as they promote bad practises. I18n messages should always be properly
 505   escaped.
 506 * Skin::getDynamicStylesheetQuery() has been deprecated. It always
 507   returns action=raw&ctype=text/css which callers should use directly.
 508 * Class LegacyFormatter is deprecated.
 509 * Use of CommentStore::insertWithTempTable() with 'img_description' is
 510   deprecated. Use CommentStore::insert() instead.
 511 * Language::setCode is deprecated as public function. Use Language::factory
 512   to create a new Language object with a different language code.
 513 * Several classes have been moved from the MediaWiki\Storage\ namespace to the
 514   MediaWiki\Revision\ namespace. The old class names are aliased for
 515   compatibility, but are deprecated. Classes are IncompleteRevisionException,
 516   MutableRevisionRecord, MutableRevisionSlots, RevisionAccessException,
 517   RevisionArchiveRecord, RevisionFactory, RevisionLookup, RevisionRecord,
 518   RevisionSlots, RevisionStore, RevisionStoreRecord, SlotRecord, and
 519   SuppressedDataException.
 520 * When using OOUI HTMLForm containing an 'info' field which uses the 'rawrow'
 521   option, it is now deprecated to give its contents (the 'default' option)
 522   as a string. They should be given as a OOUI\FieldLayout object instead.
 523   Notably, this affects fields defined in the 'GetPreferences' hook, because
 524   Special:Preferences uses an OOUI form now. (If possible, don't use 'rawrow'.)
 525 * In Skin::doEditSectionLink omitting the parameters $tooltip and $lang is
 526   deprecated. For the $lang parameter, types other than Language are
 527   deprecated.
 528
 529 === Other changes in 1.32 ===
 530 * (T198811) The following tables have had their UNIQUE indexes turned into
 531   proper PRIMARY KEYs for increased maintainability: interwiki, page_props,
 532   protected_titles and site_identifiers.
 533 * OOUI HTMLForm will now display help text inline after the input field,
 534   rather than in a popup. Previous behavior can be restored by using
 535   `'help-inline' => false`.
 536 * The archive table's ar_rev_id field is now unique.
 537 * Special:BotPasswords now requires reauthentication.
 538 * (T174023) Multi-Content Revision (MCR) capabilities were introduced into the
 539   storage layer and have basic support for display. No user interface exists
 540   yet for creating or managing content in slots beides the main slot. See
 541   <https://www.mediawiki.org/wiki/Multi-Content_Revisions> for more
 542   information.
 543 * The image_comment_temp database table is merged into the image table and
 544   deprecated. Since access should be mediated by the CommentStore class, this
 545   change shouldn't affect external code.
 546 * (T206147) Database::close() will no longer commit any open transactions.
 547
 548 == Compatibility ==
 549 MediaWiki 1.32 requires PHP 7.0.0 or later. Although HHVM 3.18.5 or later is
 550 supported, it is generally advised to use PHP 7.0.0 or later for long term
 551 support.
 552
 553 MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
 554 but support for them is somewhat less mature. There is experimental support for
 555 Oracle and Microsoft SQL Server.
 556
 557 The supported versions are:
 558
 559 * MySQL 5.5.8 or later
 560 * PostgreSQL 9.2 or later
 561 * SQLite 3.3.7 or later
 562 * Oracle 9.0.1 or later
 563 * Microsoft SQL Server 2005 (9.00.1399)
 564
 565 == Upgrading ==
 566 1.32 has several database changes since 1.31, and will not work without schema
 567 updates. Note that due to changes to some very large tables like the revision
 568 table, the schema update may take quite long (minutes on a medium sized site,
 569 many hours on a large site).
 570
 571 Don't forget to always back up your database before upgrading!
 572
 573 See the file UPGRADE for more detailed upgrade instructions, including
 574 important information when upgrading from versions prior to 1.11.
 575
 576 For notes on 1.31.x and older releases, see HISTORY.
 577
 578 == Online documentation ==
 579 Documentation for both end-users and site administrators is available on
 580 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 581 for pages that explicitly state that their contents are in the public domain):
 582
 583        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 584
 585 == Mailing list ==
 586 A mailing list is available for MediaWiki user support and discussion:
 587
 588        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 589
 590 A low-traffic announcements-only list is also available:
 591
 592        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 593
 594 It's highly recommended that you sign up for one of these lists if you're
 595 going to run a public MediaWiki, so you can be notified of security fixes.
 596
 597 == IRC help ==
 598 There's usually someone online in #mediawiki on irc.freenode.net.