RELEASE-NOTES-1.31

   1 == MediaWiki 1.31.2 ==
   2
   3 THIS IS NOT A RELEASE YET
   4
   5 === Changes since MediaWiki 1.31.1 ===
   6 * (T204729) WatchedItemStore::countVisitingWatchersMultiple() shouldn't query all
   7   titles when asked for none
   8 * (T205967) Fix syntax error typo in postgres database upgrade file.
   9 * (T200254) Add pear/Net_SMTP 1.7.3 to composer dependencies.
  10 * (T206765) Load installer i18n when running update.php.
  11 * (T109121) Remove deprecated pear/mail_mime-decode from composer suggested libraries.
  12   [Also in the bundled composer /vendor directory.]
  13 * Various PHP 7.2 and 7.3 compatibility fixes:
  14   * (T200595, T206974) Fix PHP 7.3 warnings of using "continue" in some scenarios instead
  15     of "break".
  16     * (T206976, T206977) Also in the bundled LocalisationUpdate and ParserFunctions extensions.
  17   * (T206979) Fix PHP 7.3 warnings of using "compact()" when some variables may
  18     not be set.
  19   * Fix PHP 7.3 warnings "preg_replace(): [...] invalid range in character class"
  20   * Avoid PHP 7.2 warnings in DBConRefTest about count() on non-Countable
  21   * Suppress "Headers already sent" in PHP 7.2 too
  22   * (T206476) Output only to stderr in unit tests
  23   * (T207112) Add session_write_close() calls to SessionManager tests
  24 * (T207540) Include IP address in "Login for $1 succeeded" log entry.
  25 * (T201781) Database: Allow selectFieldValues() to accept SQL fragments
  26 * (T205765) installer: Don't link to the obsolete "Extension Matrix" page
  27 * (T206013) Update ImportableUploadRevisionImporter for interwiki usernames
  28 * (T207541) Pass an email address, not a MailAddress, to mail().
  29 * (T207603) User JS may no longer be loaded with mime type text/javascript if
  30   there is no account associated with the username.
  31 * (T112937, T113042) Do not allow loading pages raw with a text/javascript MIME
  32   type if non-admins can edit the page.
  33 * (T17491) <ins>/<del> elements can be phrasing or flow
  34 * (T200827) RemexCompatMunger: Don't call endTag() in case B/b
  35 * (T207088) Upgrade wikimedia/remex-html to 2.0.1
  36   [Also in the bundled composer /vendor directory.]
  37 * (T194052) Updated wikimedia/base-convert from 1.0.1 to 2.0.0.
  38   [Also in the bundled composer /vendor directory.]
  39 * (T199494) Fix notices in maintenance/removeUnusuedAccounts.php
  40 * Require ext-fileinfo in composer.json, per PHPVersionCheck
  41 * (T176390) Bundled LocalisationUpdate extension: Handle exceptions from GitHubFetcher
  42 * (T208255) Completion search should not change the search query
  43
  44 * (T209870) Fix SQL syntax error in MS-SQL initialisation file for new wikis
  45 * (T185049) LogFormatter: Fail softer when trying to link an invalid titles
  46
  47 == MediaWiki 1.31.1 ==
  48
  49 This is a security and maintenance release of the MediaWiki 1.31 branch.
  50
  51 === Changes since MediaWiki 1.31.0 ===
  52 * (T169545, CVE-2018-0503) SECURITY: $wgRateLimits entry for 'user' overrides
  53   'newbie'.
  54 * (T194605, CVE-2018-0505) SECURITY: BotPasswords can bypass CentralAuth's
  55   account lock.
  56 * (T199029, CVE-2018-13258) SECURITY: Tarball was missing .htaccess files.
  57 * (T197229) Bundle Nuke extension, it was accidentally omitted.
  58 * (T193995) Fix undefined patchPath() method call in parser tests.
  59 * (T198687) Fix various selectFields methods to use the string 'NULL', not null.
  60 * Special:BotPasswords now requires reauthentication.
  61 * (T191608, T187638) Add 'logid' parameter to Special:Log.
  62 * (T193829) Indicate when a Bot Password needs reset.
  63 * (T198037) GitInfo: Don't try shelling out if it's disabled.
  64 * (T151415) Log email changes.
  65 * (T197206) Fix performance regression when multiple DB used without caching.
  66 * (T197030) PHPSessionHandler: Suppress headers warnings in initialize().
  67 * (T182377, T196793) Exif: Guard against uncountable tag values.
  68 * (T200861) Fix total breakage of SQLite web upgrade.
  69 * (T200864) Fix pingback over-reporting on non-MySQL databases
  70 * (T202550) Unbreak SpecialListusersHeaderForm and SpecialListusersHeader
  71   hooks.
  72
  73 === Changes since MediaWiki 1.31.0-rc.2 ===
  74 * (T195783) Initialize PSR-4 namespaces at same stage as normal autoloader.
  75 * (T196092) Hide MySQL binary/utf-8 charset option in the installer.
  76 * (T196185) Don't allow setting $wgDBmysql5 in the installer.
  77 * (T196125) php-memcached 3.0 (provided with PHP 7.0) is now supported.
  78 * (T182366) UploadBase::checkXMLEncodingMissmatch() now works on PHP 7.1+
  79 * (T118683) Fix exception from &$user deref on HHVM in the TitleMoveComplete hook.
  80 * (T196672) The mtime of extension.json files is now able to be zero
  81 * (T180403) Validate $length in padleft/padright parser functions.
  82 * (T143790) Make $wgEmailConfirmToEdit only affect edit actions.
  83
  84 === Changes since MediaWiki 1.31.0-rc.0 ===
  85 * (T33223) Drop archive.ar_text and ar_flags.
  86 * Add default edit rate limit of 90 edits/minute for all users.
  87 * (T187645) Use codepoint as tiebreaker when getting first-letters in
  88   IcuCollation.
  89 * (T191947) Don't shell during the installer if shelling out is disabled.
  90 * (T194319) Improve duplicate config setting exception as part of extension
  91   registration.
  92 * (T195211) Don't require trailing slash in PSR-4 autoloader directory.
  93 * (T186565) Fix PHP Notice from `ob_end_flush()` in `FileRepo::streamFile()`.
  94 * Do not incorrectly hide namespace input field in the installer.
  95 * (T186456) Refactor checks looking for PEAR maik libraries to be clearer.
  96
  97 === Important pre-upgrade notes for 1.31 ===
  98 * If you're using MySQL, SQLite, or MSSQL, are not using update.php to apply
  99   schema changes, and cannot have downtime to run migrateArchiveText.php and
 100   apply patch-drop-ar_text.sql manually, you'll have to apply a default value
 101   to the ar_text and ar_flags columns of the archive table or make those
 102   columns nullable before upgrading to MediaWiki 1.31.
 103   maintenance/archives/patch-nullable-ar_text.sql shows how to do this for MySQL.
 104 * The CologneBlue and Modern skins are no longer bundled with the tarball. You
 105   will need to remove the wfLoadSkin() calls from your LocalSettings.php or
 106   download them separately
 107   (<https://www.mediawiki.org/wiki/Special:SkinDistributor>).
 108
 109 === Configuration changes in 1.31 ===
 110 * $wgEnableAPI and $wgEnableWriteAPI are now deprecated and will be removed in
 111   a future version. The API is now considered to be stable, secure and
 112   essential.
 113 * $wgUsejQueryThree was removed, as it is now the default. This was documented
 114   as a temporary variable during the migration period, deprecated since 1.29.
 115 * $wgLogoHD has been updated to support svg images and uses $wgLogo where
 116   possible for fallback images such as png.
 117 * (T44246) $wgFilterLogTypes will no longer ignore 'patrol' when user does not
 118   have the right to mark things patrolled.
 119 * Wikis that contain imported revisions or CentralAuth global blocks should run
 120   maintenance/cleanupUsersWithNoId.php.
 121 * The configuration settings $wgResourceLoaderMinifierStatementsOnOwnLine and
 122   $wgResourceLoaderMinifierMaxLineLength, deprecated since 1.27, were removed.
 123 * (T180921) $wgReferrerPolicy now supports having fallbacks for browsers that
 124   are not using the latest version of the Referrer Policy specification.
 125 * $wgFragmentMode is now set to [ 'legacy', 'html5' ] by default. This is a
 126   first step of migration to human-readable section IDs that will later result
 127   in 'html5' being the default mode.
 128 * CACHE_ACCEL now only supports APC(u) or WinCache. XCache support was removed
 129   as upstream is inactive and has no plans to move to PHP 7.
 130 * The old CategorizedRecentChanges feature, including its related configuration
 131   option $wgAllowCategorizedRecentChanges, has been removed.
 132 * (T188472) The 'comma' value for $wgArticleCountMethod is no longer supported
 133   for performance reasons, and installations with this setting will now work as
 134   if it was configured with 'any'.
 135 * (T185753) MediaWiki now defaults to using RemexHtml to tidy up user input,
 136   rather than being off by default. If you wish to disable HTML tidying
 137   entirely, set $wgTidyConfig to null; if you wish to use the old, deprecated
 138   Tidy external binary, both set $wgTidyConfig to null and $wgUseTidy to true.
 139 * $wgLogAutopatrol now defaults to false instead of true.
 140 * $wgValidateAllHtml was removed and will be ignored.
 141 * $wgScriptExtension, deprecated and ignored since 1.25, was removed. See the
 142   1.25 release notes for more information.
 143 * $wgUseAjax is now marked as deprecated, just like the deprecated AJAX
 144   framework that it enables. Some extensions mistakenly used this to check
 145   whether any AJAX functionality at all should be enabled, further making this
 146   problematic to retain.
 147 * $wgDBmysql5 is now deprecated, and will be removed in a future version. It
 148   has been marked as experimental ever since it was introduced.
 149
 150 === New features in 1.31 ===
 151 * (T76554) User sub-pages named ….json are now protected in the same way that
 152   ….js and ….css pages are, so that configuration options can safely be placed
 153   there.
 154 * Wikimedia\Rdbms\IDatabase->select() and similar methods now support joins
 155   with parentheses for grouping.
 156 * As a first pass in standardizing dialog boxes across the MediaWiki product,
 157   Html class now provides helper methods for messageBox, successBox, errorBox
 158   and warningBox generation.
 159 * (T9240) Imports will now record unknown (and, optionally, known) usernames in
 160   a format like "iw>Example".
 161 * (T20209) Linker (used on history pages, log pages, and so on) will display
 162   usernames formed like "iw>Example" as interwiki links, as if by wikitext like
 163   [[iw:User:Example|iw>Example]].
 164 * (T111605) The 'ImportHandleUnknownUser' hook allows extensions to auto-create
 165   users during an import.
 166 * Added a hook, ParserOutputPostCacheTransform, to allow extensions to affect
 167   the ParserOutput::getText() post-cache transformations.
 168 * Added a hook, UploadForm:getInitialPageText, to allow extensions to alter the
 169   initial page text for file uploads.
 170 * (T181651) The info page for File pages now displays the file's base-16 SHA1
 171   hash value in the table of basic information.
 172 * Style tags with a 'data-mw-deduplicate' attribute will be deduplicated as a
 173   ParserOutput::getText() post-cache transformation. This may be disabled by
 174   passing 'deduplicateStyles' => false to that method.
 175 * The identity of the logged-in or IP "actor" for logged actions is being moved
 176   into a new actor table, with the rows in tables such as revision and logging
 177   referring to the actor ID instead of storing the user ID and name/IP in
 178   every row.
 179   * This is currently gated by $wgActorTableSchemaMigrationStage. Most wikis
 180     can set this to MIGRATION_NEW and run maintenance/migrateActors.php as
 181     soon as any necessary extensions are updated.
 182   * Most code accessing rows for logged actions from the database should use
 183     the relevant getQueryInfo() methods to get the information needed to build
 184     the SQL query. The ActorMigration class may also be used to get feature
 185     -flagged information needed to access actor-related fields during the
 186     migration period.
 187 * Added Wikimedia\Rdbms\IDatabase::cancelAtomic(), to roll back an atomic
 188   section without having to roll back the whole transaction.
 189 * Wikimedia\Rdbms\IDatabase::doAtomicSection(), non-native ::insertSelect(),
 190   and non-MySQL ::replace() and ::upsert() no longer roll back the whole
 191   transaction on failure.
 192 * (T189785) Added a monthly heartbeat ping to the pingback feature.
 193 * The CLI installer (maintenance/install.php) learned to detect and include
 194   extensions. Pass --with-extensions to enable that feature.
 195 * (T184791) rc_patrolled now has three states: "0" for unpatrolled,
 196   "1" for manually patrolled and "2" for autopatrolled actions.
 197 * Extensions can now set their type to "editor" if they provide an editor or
 198   enhance the editing experience.
 199 * Extensions can use a PSR-4 autoloader by setting an "AutoloadNamespaces"
 200   property in extension.json. See the documentation at
 201   <https://mediawiki.org/wiki/Manual:Extension.json/Schema#AutoloadNamespaces>
 202   for more details and an example.
 203 * (T19099) Tabs which link to pages that don't exist (like those to uncreated
 204   discussion pages) now have a tooltip to indicate state, not just colour.
 205
 206 === External library changes in 1.31 ===
 207 * pear/mail, pear/mail_mime and pear/mail_mime-decode have been moved from
 208   suggested to required. These packages now must be installed via composer
 209   and not via PEAR itself.
 210
 211 ==== Upgraded external libraries ====
 212 * Updated jquery.chosen from v0.9.14 to v1.8.2.
 213 * Updated composer/spdx-licenses from 1.1.4 to 1.3.0 (development dependency).
 214 * Updated nikic/php-parser from 2.1.0 to 3.1.3 (development dependency).
 215 * Updated wikimedia/ip-set from 1.1.0 to 1.2.0.
 216 * Updated wikimedia/relpath from 2.0.0 to 2.1.1.
 217 * Updated wikimedia/running-stat from 1.1.0 to 1.2.0.
 218 * Updated wikimedia/wrappedstring from 2.2.0 to 2.3.0.
 219 * Updated mediawiki/at-ease from 1.1.0 to 1.2.0.
 220 * Updated wikimedia/php-session-serializer from 1.0.4 to 1.0.6.
 221 * Updated wikimedia/remex-html from 1.0.2 to 1.0.3.
 222 * Updated wikimedia/html-formatter from 1.0.1 to 1.0.2.
 223
 224 ==== New external libraries ====
 225 * Added wikimedia/object-factory 1.0.0
 226
 227 ==== Removed and replaced external libraries ====
 228 * (T17845) The deprecated 'jquery.badge' module was removed.
 229 * The deprecated 'jquery.autoEllipsis' module was removed. Use the CSS
 230   text-overflow property instead.
 231 * The deprecated 'jquery.placeholder' module was removed.
 232 * The deprecated 'jquery.appear' module was removed. Use the
 233   'mediawiki.viewport' module instead.
 234 * mediawiki/at-ease was replaced with wikimedia/at-ease.
 235
 236 === Bug fixes in 1.31 ===
 237 * (T90902) Non-breaking space in header ID breaks anchor.
 238 * (T189375) CSSMin now allows quoted urls in `url()` syntax to start with a
 239   space.
 240 * (T2087, T10897, T87753, T174639) Whitespace created by category and language
 241   links is now stripped rather than leaving blank lines in odd places.
 242 * (T3780) Uploads with UTF-8 names now work on PHP7.1+ on Windows servers.
 243 * (T182366) UploadBase::checkXMLEncodingMissmatch() now works on PHP 7.1+
 244
 245 === Action API changes in 1.31 ===
 246 * (T185058) The 'name' value to tgprop for action=query&list=tags has been
 247   removed. It has never made a difference in the output, the name was always
 248   returned regardless.
 249 * The 'watch' and 'unwatch' parameters for action=move have been removed. They
 250   were deprecated and also accidentally nonfunctional since 1.17 in 2010. Use
 251   'watchlist' instead.
 252
 253 === Action API internal changes in 1.31 ===
 254 * ApiBase::getProfileDBTime, deprecated since 1.25, was removed.
 255 * ApiBase::getModuleProfileName, deprecated since 1.25, was removed.
 256 * ApiBase::getProfileTime, deprecated since 1.25, was removed.
 257
 258 === Languages updated in 1.31 ===
 259 MediaWiki supports over 350 languages. Many localisations are updated
 260 regularly. Below only new and removed languages are listed, as well as
 261 changes to languages because of Phabricator reports.
 262
 263 * (T180052) Mirandese (mwl) now supports gendered NS_USER/NS_USER_TALK.
 264 * (T182305) New language support: Nyungar (nys).
 265 * (T186359) New language support: Siberian Tatar [cебертатар] (sty).
 266 * (T186635) New language support: Guianan Creole (gcr).
 267 * (T186647) New language support: Kumyk [къумукъ] (kum).
 268 * (T187750) New language support: Spanish formal address (es-formal).
 269 * (T187824) New language support: Hungarian formal address (hu-formal).
 270 * (T189127) New language support: Gorontalo (gor).
 271
 272 === Breaking changes in 1.31 ===
 273 * MessageBlobStore::insertMessageBlob(), deprecated in 1.27, was removed.
 274 * The OutputPage class constructor now requires a context parameter.
 275   Instantiating without context was deprecated in 1.18.
 276 * The mw.page JavaScript singleton, deprecated in 1.30, was removed.
 277 * Article::getLastPurgeTimestamp(), WikiPage::getLastPurgeTimestamp(), and the
 278   related WikiPage::PURGE_* constants, deprecated in 1.29, were removed.
 279 * The Article::selectFields(), ::onArticleCreate(), ::onArticleDelete(), and
 280   ::onArticleEdit() methods, deprecated in 1.24, were removed.
 281 * Installer::locateExecutable() and ::locateExecutableInDefaultPaths() were
 282   removed. Use ExecutableFinder::findInDefaultPaths() instead.
 283 * The deprecated MW_DIFF_VERSION constant was removed.
 284   DifferenceEngine::MW_DIFF_VERSION should be used instead.
 285 * Due to significant refactoring, method ContribsPager::getUserCond() that had
 286   no access restriction has been removed.
 287 * The Block class will no longer accept usable-but-missing usernames for
 288   'byText' or ->setBlocker(). Callers should either ensure the blocker exists
 289   locally or use a new interwiki-format username like "iw>Example".
 290 * The following methods and constants from the WatchedItem class, which were
 291   deprecated in 1.27, have been removed:
 292   * WatchedItem::getTitle()
 293   * WatchedItem::fromUserTitle()
 294   * WatchedItem::addWatch()
 295   * WatchedItem::removeWatch()
 296   * WatchedItem::isWatched()
 297   * WatchedItem::duplicateEntries()
 298   * WatchedItem::IGNORE_USER_RIGHTS
 299   * WatchedItem::CHECK_USER_RIGHTS
 300   * WatchedItem::DEPRECATED_USAGE_TIMESTAMP
 301 * The $statementsOnOwnLine parameter of JavaScriptMinifier::minify was removed.
 302   $wgResourceLoaderMinifierStatementsOnOwnLine, the corresponding configuration
 303   variable, has been deprecated since 1.27 and was removed as well.
 304 * The $maxLineLength parameter of JavaScriptMinifier::minify was removed.
 305   $wgResourceLoaderMinifierMaxLineLength, the corresponding configuration
 306   variable, has been deprecated since 1.27 and was removed as well.
 307 * The HtmlFormatter class, deprecated in 1.27, was removed. The namespaced
 308   HtmlFormatter\HtmlFormatter class should be used instead.
 309 * The driver 'mysql' for MySQL, deprecated in MediaWiki 1.30, has been removed.
 310   The driver has been deprecated since PHP 5.5 and was removed in PHP 7.0. The
 311   default driver for MySQL has been 'mysqli' since MediaWiki 1.22.
 312 * The following properties of PreparedEdit were deprecated in 1.21 and have
 313   been removed:
 314   * PreparedEdit->newText
 315   * PreparedEdit->oldText
 316   * PreparedEdit->pst
 317 * ParserOutput objects which are generated using a non-default value for
 318   ParserOptions::setWrapOutputClass() can no longer be added to the parser
 319   cache.
 320 * The following deprecated methods from the OutputPage class have been removed:
 321   * OutputPage::addExtensionStyle(); deprecated in 1.27
 322   * OutputPage::getExtStyle(); deprecated in 1.27
 323   * OutputPage::setETag(); deprecated in 1.28 (obsolete no-op)
 324   * OutputPage::setSquidMaxage(); deprecated in 1.27
 325   * OutputPage::readOnlyPage(); deprecated in 1.25
 326   * OutputPage::rateLimited(); deprecated in 1.25
 327   * Additionally, the protected OutputPage::$mExtStyles array, only accessed
 328     through the above and with no known uses, was removed.
 329 * The no-op method Skin::showIPinHeader(), deprecated in 1.27, was removed.
 330 * The following variables and methods in EditPage, deprecated in MediaWiki 1.30,
 331   were removed:
 332   * $isCssJsSubpage — use ::isUserConfigPage()
 333   * $isCssSubpage — use ::isUserCssConfigPage()
 334   * $isJsSubpage — use ::isUserJsConfigPage()
 335   * $isWrongCaseCssJsPage – use ::isWrongCaseUserConfigPage()
 336   * ::getSummaryInput() – use ::getSummaryInputWidget()
 337   * ::getSummaryInputOOUI() – use ::getSummaryInputWidget()
 338   * ::getCheckboxes() – use ::getCheckboxesWidget() or
 339       ::getCheckboxesDefinition()
 340   * ::getCheckboxesOOUI() – use ::getCheckboxesWidget() or
 341       ::getCheckboxesDefinition()
 342 * ResourceLoaderModule::getPosition(), deprecated in 1.29, has been removed.
 343 * In User, the cookie-related methods which were wrappers for the functions on
 344   the response object, and were deprecated in 1.27, have been removed:
 345   * ::setCookie()
 346   * ::clearCookie()
 347   * ::setExtendedLoginCookie()
 348   Note that User::setCookies() remains, and is not deprecated.
 349 * Also in User, some auth-related methods which were deprecated in 1.27 have
 350   been removed:
 351   * ::getEditTokenTimestamp() – use MediaWiki\Session\Token::getTimestamp()
 352   * ::getPasswordFactory() – create a PasswordFactory directly
 353   * ::passwordChangeInputAttribs()
 354 * The global functions wfProfileIn and wfProfileOut, deprecated in 1.25, have
 355   been removed.
 356 * SpecialPageFactory::getList(), deprecated in 1.24, has been removed. You can
 357   use ::getNames() instead.
 358 * OpenSearch::getOpenSearchTemplate(), deprecated in 1.25, has been removed. You
 359   can use ApiOpenSearch::getOpenSearchTemplate() instead.
 360 * The global function wfBaseConvert, deprecated in 1.27, has been removed. Use
 361   Wikimedia\base_convert() directly.
 362 * Calling Database::begin() explicitly during an implicit transaction or when
 363   DBO_TRX is set results in an exception. Calling Database::commit() explicitly
 364   for an implicit transaction also results in an exception. Previously these
 365   were logged as errors. The startAtomic() and endAtomic() methods, or
 366   AtomicSectionUpdate should be used instead.
 367 * The global function wfOutputHandler() was removed, use the its replacement
 368   MediaWiki\OutputHandler::handle() instead. The global function was only
 369   sometimes defined. Its replacement is always available via the autoloader.
 370 * ChangeTags::listExtensionActivatedTags and ::listExtensionDefinedTags,
 371   deprecated in 1.28, have been removed. Use ::listSoftwareActivatedTags() and
 372   ::listSoftwareDefinedTags() instead.
 373 * Title::getTitleInvalidRegex(), deprecated in 1.25, has been removed. You can
 374   use MediaWikiTitleCodec::getTitleInvalidRegex() instead.
 375 * HTMLForm & VFormHTMLForm::isVForm(), deprecated in 1.25, have been removed.
 376 * The ProfileSection class, deprecated in 1.25 and unused, has been removed.
 377 * The ResourceLoaderGetLessVars hook, deprecated in 1.30, has been removed. Use
 378   ResourceLoaderModule::getLessVars() to expose local variables instead of
 379   global ones.
 380 * As part of work to modernise user-generated content clean-up, a config option
 381   and some methods related to HTML validity were removed without deprecation.
 382   The public methods MWTidy::checkErrors() and the path through which it was
 383   called, TidyDriverBase::validate(), are removed, as are the testing methods
 384   MediaWikiTestCase::assertValidHtmlSnippet() and ::assertValidHtmlDocument().
 385   The $wgValidateAllHtml configuration option is removed and will be ignored.
 386 * Execution of external programs using MediaWiki\Shell\Command now applies
 387   the RESTRICT_DEFAULT Firejail restriction by default.
 388 * The ResourceLoaderModule::getHashMtime() and ::getDefinitionMtime() methods,
 389   deprecated in 1.26, were removed.
 390 * The deprecated 'mediawiki.widgets.CategorySelector' module alias was removed.
 391   Use the 'mediawiki.widgets.CategoryMultiselectWidget' module directly.
 392
 393 === Deprecations in 1.31 ===
 394 * The Revision class was deprecated in favor of RevisionStore, BlobStore, and
 395   RevisionRecord and its subclasses.
 396 * The global function wfBCP47 is deprecated in favour of LanguageCode::bcp47.
 397 * The global function wfCountDown is now deprecated in favor of
 398   Maintenance::countDown.
 399 * Several methods for returning lists of fields to select from the database
 400   have been deprecated in favor of similar methods that also return the tables
 401   to select from and the join conditions for those tables.
 402   * Block::selectFields() → Block::getQueryInfo()
 403   * RecentChange::selectFields() → RecentChange::getQueryInfo()
 404   * ArchivedFile::selectFields() → ArchivedFile::getQueryInfo()
 405   * LocalFile::selectFields() → LocalFile::getQueryInfo()
 406   * LocalFile::getCacheFields() with a prefix no longer works
 407   * LocalFile::getLazyCacheFields() with a prefix no longer works
 408   * OldLocalFile::selectFields() → OldLocalFile::getQueryInfo()
 409   * RecentChange::selectFields() → RecentChange::getQueryInfo()
 410   * Revision::userJoinCond() → Revision::getQueryInfo( [ 'user' ] )
 411   * Revision::selectUserFields() → Revision::getQueryInfo( [ 'user' ] )
 412   * Revision::pageJoinCond() → Revision::getQueryInfo( [ 'page' ] )
 413   * Revision::selectPageFields() → Revision::getQueryInfo( [ 'page' ] )
 414   * Revision::selectTextFields() → Revision::getQueryInfo( [ 'text' ] )
 415   * Revision::selectFields() → Revision::getQueryInfo()
 416   * Revision::selectArchiveFields() → Revision::getArchiveQueryInfo()
 417   * User::selectFields() → User::getQueryInfo()
 418   * WikiPage::selectFields() → WikiPage::getQueryInfo()
 419 * Revision::setUserIdAndName() was deprecated.
 420 * Access to TitleValue class properties was deprecated, the relevant getters
 421   should be used instead.
 422 * DifferenceEngine::getDiffBodyCacheKey() is deprecated. Subclasses should
 423   override DifferenceEngine::getDiffBodyCacheKeyParams() instead.
 424 * Use of Maintenance::error( $err, $die ) to exit script was deprecated. Use
 425   Maintenance::fatalError() instead.
 426 * Passing a ParserOptions object to OutputPage::parserOptions() is deprecated.
 427 * The RevisionInsertComplete hook is now deprecated; use instead the hook
 428   RevisionRecordInserted. RevisionInsertComplete is still called, but the second
 429   and third parameter will always be null. Hard deprecation is scheduled for 1.32.
 430 * The following methods that get and set ParserOutput state are deprecated.
 431   Callers should use the new stateless $options parameter to
 432   ParserOutput::getText() instead.
 433   * ParserOptions::getEditSection()
 434   * ParserOptions::setEditSection()
 435   * ParserOutput::getEditSectionTokens()
 436   * ParserOutput::setEditSectionTokens()
 437   * ParserOutput::getTOCEnabled()
 438   * ParserOutput::setTOCEnabled()
 439   * OutputPage::enableSectionEditLinks()
 440   * OutputPage::sectionEditLinksEnabled()
 441   * The public ParserOutput state fields $mTOCEnabled and $mEditSectionTokens
 442     are also deprecated.
 443 * License::getLicenses has been deprecated; use License::getLines instead.
 444 * QuickTemplate::setRef() was deprecated in favour of QuickTemplate::set().
 445   Setting template variables by reference allowed violating the principle of
 446   data being immutable once added to the skin template. In practice, this method
 447   was not being used for that. Rather, setRef() existed as memory optimisation
 448   for PHP 4.
 449 * QuickTemplate::setTranslator() and MediaWikiI18N::set() were deprecated in
 450   favour of Skin::msg() parameters.
 451 * MediaWikiI18N::translate() was deprecated in favour of Skin::msg() or
 452   wfMessage().
 453 * Passing false to ParserOptions::setWrapOutputClass() is deprecated. Use the
 454   'unwrap' transform to ParserOutput::getText() instead.
 455 * \ObjectFactory (no namespace) is deprecated, the namespaced class
 456   \Wikimedia\ObjectFactory from the wikimedia/object-factory library should be
 457   used instead.
 458 * CommentStore::newKey is deprecated. Instead, get an instance from
 459   MediaWikiServices.
 460 * The following CommentStore methods have had their signatures changed to
 461   introduce a $key parameter, usage of the methods on instances retrieved from
 462   CommentStore::newKey will remain unchanged but deprecated:
 463   * CommentStore::getFields
 464   * CommentStore::getJoin
 465   * CommentStore::getComment
 466   * CommentStore::getCommentLegacy
 467   * CommentStore::insert
 468   * CommentStore::insertWithTemplate
 469 * The following methods in Title have been renamed, and the old ones are
 470   deprecated:
 471   * Title::getSkinFromCssJsSubpage – use ::getSkinFromConfigSubpage
 472   * Title::isCssOrJsPage – use ::isSiteConfigPage
 473   * Title::isCssJsSubpage – use ::isUserConfigPage
 474   * Title::isCssSubpage – use ::isUserCssConfigPage
 475   * Title::isJsSubpage – use ::isUserJsConfigPage
 476 * The following methods related to caching of half-parsed HTML were deprecated:
 477   * Parser::serializeHalfParsedText()
 478   * Parser::unserializeHalfParsedText()
 479   * Parser::isValidHalfParsedText()
 480   * StripState::getSubState()
 481   * StripState::merge()
 482 * The DeferredStringifier class is deprecated, use Message::listParam() instead.
 483 * The type string for the parameter $lang of DateFormatter::getInstance is
 484   deprecated.
 485 * Wikimedia\Rdbms\SavepointPostgres is deprecated.
 486 * The DO_MAINTENANCE constant is deprecated. RUN_MAINTENANCE_IF_MAIN should be
 487   used instead.
 488 * The function wfShellWikiCmd() has been deprecated, use
 489   MediaWiki\Shell::makeScriptCommand().
 490 * In the future, the hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend'
 491   will be allowed to provide any HTMLForm object rather than PreferencesForm.
 492
 493 === Other changes in 1.31 ===
 494 * Browser support for Internet Explorer 10 was lowered from Grade A to Grade C.
 495 * Browser support for Opera 12 and older was dropped entirely. Opera 15+
 496   continues at Grade A.
 497 * Multi-content-revision capability was introduced into the storage layer. See
 498   <https://mediawiki.org/wiki/Requests_for_comment/Multi-Content_Revisions>.
 499 * The "free" CSS class is now only applied to unbracketed URLs in wikitext.
 500   Links written using square brackets will get the class "text" not "free".
 501 * RFC 157418: Whitespace is trimmed from wikitext headings, wikitext list items,
 502   wikitext table captions, wikitext table headings, wikitext table cells. HTML
 503   headings, HTML list items, HTML table captions, HTML table headings, HTML
 504   table cells will not have this trimming behavior.
 505
 506 == Compatibility ==
 507 MediaWiki 1.31 requires PHP 7.0.0 or later. Although HHVM 3.18.5 or later is
 508 supported, it is generally advised to use PHP 7.0.0 or later for long term
 509 support. MediaWiki requires that the mbstring, xml, ctype, json, iconv and
 510 fileinfo PHP extensions are loaded to work.
 511
 512 MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
 513 but support for them is somewhat less mature. There is experimental support for
 514 Oracle and Microsoft SQL Server.
 515
 516 The supported versions are:
 517
 518 * MySQL 5.5.8 or later
 519 * PostgreSQL 9.2 or later
 520 * SQLite 3.3.7 or later
 521 * Oracle 9.0.1 or later
 522 * Microsoft SQL Server 2005 (9.00.1399)
 523
 524 == Upgrading ==
 525 1.31 has several database changes since 1.30, and will not work without schema
 526 updates. Note that due to changes to some very large tables like the revision
 527 table, the schema update may take quite long (minutes on a medium sized site,
 528 many hours on a large site).
 529
 530 Don't forget to always back up your database before upgrading!
 531
 532 See the file UPGRADE for more detailed upgrade instructions, including
 533 important information when upgrading from versions prior to 1.11.
 534
 535 For notes on 1.30.x and older releases, see HISTORY.
 536
 537 == Online documentation ==
 538 Documentation for both end-users and site administrators is available on
 539 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 540 for pages that explicitly state that their contents are in the public domain):
 541
 542        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 543
 544 == Mailing list ==
 545 A mailing list is available for MediaWiki user support and discussion:
 546
 547        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 548
 549 A low-traffic announcements-only list is also available:
 550
 551        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 552
 553 It's highly recommended that you sign up for one of these lists if you're
 554 going to run a public MediaWiki, so you can be notified of security fixes.
 555
 556 == IRC help ==
 557 There's usually someone online in #mediawiki on irc.freenode.net.