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