3 THIS IS NOT A RELEASE YET
5 === Changes since MediaWiki 1.31.2 ===
6 * (T202211) Fix SQLite patch-(image|page|template)links-fix-pk.sql column order.
10 This is a security and maintenance release of the MediaWiki 1.31 branch.
12 Required PHP version has been increased from 7.0.0 to 7.0.13.
14 === Changes since MediaWiki 1.31.1 ===
15 * (T204729) WatchedItemStore::countVisitingWatchersMultiple() shouldn't query all
16 titles when asked for none.
17 * (T205967) Fix syntax error typo in postgres database upgrade file.
18 * (T200254) Add pear/Net_SMTP 1.7.3 to composer dependencies.
19 * (T206765) Load installer i18n when running update.php.
20 * (T109121) Remove deprecated pear/mail_mime-decode from composer suggested libraries.
21 [Also in the bundled composer /vendor directory.]
22 * Various PHP 7.2 and 7.3 compatibility fixes:
23 * (T200595, T206974) Fix PHP 7.3 warnings of using "continue" in some scenarios instead
25 * (T206976, T206977) Also in the bundled LocalisationUpdate and ParserFunctions extensions.
26 * (T206979) Fix PHP 7.3 warnings of using "compact()" when some variables may
28 * (T215632) FormatMetadata and UploadStash regexes fixed to be PHP 7.3-compatible.
29 * Fix PHP warnings "preg_replace(): [...] invalid range in character class.
30 * Avoid PHP 7.2 warnings in DBConRefTest about count() on non-Countable.
31 * Suppress "Headers already sent" in PHP 7.2 too.
32 * (T206476) Output only to stderr in unit tests.
33 * (T207112) Add session_write_close() calls to SessionManager tests.
34 * oyejorge/less.php replaced with our fork wikimedia/less.php
35 * (T209756) Updated wikimedia/ip-set from 1.2.0 to 1.3.0.
36 * (T213489) Avoid session double-start in Setup.php.
37 * (T206975) Switch to our fork of less.php.
38 * (T207540) Include IP address in "Login for $1 succeeded" log entry.
39 * (T201781) Database: Allow selectFieldValues() to accept SQL fragments.
40 * (T205765) installer: Don't link to the obsolete "Extension Matrix" page.
41 * (T206013) Update ImportableUploadRevisionImporter for interwiki usernames.
42 * (T207541) Pass an email address, not a MailAddress, to mail().
43 * (T207603) SECURITY: User JS may no longer be loaded with mime type text/javascript if
44 there is no account associated with the username.
45 * (T112937, T113042) SECURITY: Do not allow loading pages raw with a text/javascript MIME
46 type if non-admins can edit the page.
47 * (T17491) <ins>/<del> elements can be phrasing or flow.
48 * (T200827) RemexCompatMunger: Don't call endTag() in case B/b
49 * (T207088) Upgrade wikimedia/remex-html to 2.0.1.
50 [Also in the bundled composer /vendor directory.]
51 * (T194052) Updated wikimedia/base-convert from 1.0.1 to 2.0.0.
52 [Also in the bundled composer /vendor directory.]
53 * (T199494) Fix notices in maintenance/removeUnusuedAccounts.php.
54 * Require ext-fileinfo in composer.json, per PHPVersionCheck.
55 * (T176390) Bundled LocalisationUpdate extension: Handle exceptions from GitHubFetcher.
56 * (T208255) Completion search should not change the search query.
57 * (T209870) Fix SQL syntax error in MS-SQL initialisation file for new wikis.
58 * (T185049) LogFormatter: Fail softer when trying to link an invalid titles.
59 * (T210998) Properly set $wgLanguageCode in the generated LocalSettings.php
60 if --lang is used with the command-line installer (install.php).
61 * (T211061) ImageListPager: Actor migration for buildQueryConds().
62 * (T209335) Clarify the default sidebar 'Help' link is about MediaWiki itself.
63 * Fix addition of ug_expiry column to user_groups table on MSSQL.
64 * (T204767) Add join conditions to ActiveUsersPager.
65 * (T210621) User: Bypass repeatable-read when creating an actor_id.
66 * (T204531) rdbms: reduce LoadBalancer replication log spam.
67 * (T195525) Fix db error outage page.
68 * (T208871) The hard-coded Google search form on the database error page was
70 * (T176097) Fix flaky MessageBlobStoreTest assertion failures.
71 * (T209423) Update required PHP version to 7.0.13.
72 * (T209885) Prevent populateSearchIndex.php from breaking once actor migration
74 * (T216968) Return pageid as int in both list=iwbacklinks and list=langbacklinks.
75 * (T215169) Fix for Database::update() with IGNORE option fails on PostgreSQL.
76 * (T204423) Backport support for hyphenated DB names in JobQueueGroup.
77 * (T199474) Fix typo in rebuildrecentchanges.php resulting in rogue flags.
78 * (T218608) SECURITY: Fix an issue that prevents Extension:OAuth working when
79 $wgBlockDisablesLogin is true.
80 * (T216029) Chrome redirects to Special:BadTitle after editing a section with
81 a non-Latin name on a page with non-Latin characters in title.
82 * (T219728) Added support for new Japanese era name "Reiwa".
83 * (T25227) SECURITY: action=logout now requires to be posted and have a csrf token.
84 * Updated cssjanus/cssjanus from 1.2.0 to 1.3.0.
85 * (T222385) resourceloader: Use AND instead of OR for upsert conds in
86 saveFileDependencies().
87 * (T224374) Fix message parameters so that the message that says SQLite is out of date
89 * SpecialPage::checkLoginSecurityLevel() will now preserve POST data when
91 * FormSpecialPage::execute() will now call checkLoginSecurityLevel() if
92 getLoginSecurityLevel() returns non-false.
93 * (T197279) SECURITY: Fix reauth in Special:ChangeEmail.
94 * (T208881) SECURITY: blacklist CSS var().
95 * (T209794) SECURITY: rate-limit and prevent blocked users from changing email.
96 * (T199540) SECURITY: API: Respect $wgBlockCIDRLimit in action=block.
97 * (T212118) SECURITY: Fix cache mode for (un)patrolled recent changes query.
98 * (T222036, T222038) SECURITY: Add permission check for user is permitted to
100 * (T221739) SECURITY: resources: Patch jQuery 3.2.1 for CVE-2019-11358.
102 == MediaWiki 1.31.1 ==
104 This is a security and maintenance release of the MediaWiki 1.31 branch.
106 === Changes since MediaWiki 1.31.0 ===
107 * (T169545, CVE-2018-0503) SECURITY: $wgRateLimits entry for 'user' overrides
109 * (T194605, CVE-2018-0505) SECURITY: BotPasswords can bypass CentralAuth's
111 * (T199029, CVE-2018-13258) SECURITY: Tarball was missing .htaccess files.
112 * (T197229) Bundle Nuke extension, it was accidentally omitted.
113 * (T193995) Fix undefined patchPath() method call in parser tests.
114 * (T198687) Fix various selectFields methods to use the string 'NULL', not null.
115 * Special:BotPasswords now requires reauthentication.
116 * (T191608, T187638) Add 'logid' parameter to Special:Log.
117 * (T193829) Indicate when a Bot Password needs reset.
118 * (T198037) GitInfo: Don't try shelling out if it's disabled.
119 * (T151415) Log email changes.
120 * (T197206) Fix performance regression when multiple DB used without caching.
121 * (T197030) PHPSessionHandler: Suppress headers warnings in initialize().
122 * (T182377, T196793) Exif: Guard against uncountable tag values.
123 * (T200861) Fix total breakage of SQLite web upgrade.
124 * (T200864) Fix pingback over-reporting on non-MySQL databases
125 * (T202550) Unbreak SpecialListusersHeaderForm and SpecialListusersHeader
128 === Changes since MediaWiki 1.31.0-rc.2 ===
129 * (T195783) Initialize PSR-4 namespaces at same stage as normal autoloader.
130 * (T196092) Hide MySQL binary/utf-8 charset option in the installer.
131 * (T196185) Don't allow setting $wgDBmysql5 in the installer.
132 * (T196125) php-memcached 3.0 (provided with PHP 7.0) is now supported.
133 * (T182366) UploadBase::checkXMLEncodingMissmatch() now works on PHP 7.1+
134 * (T118683) Fix exception from &$user deref on HHVM in the TitleMoveComplete hook.
135 * (T196672) The mtime of extension.json files is now able to be zero
136 * (T180403) Validate $length in padleft/padright parser functions.
137 * (T143790) Make $wgEmailConfirmToEdit only affect edit actions.
139 === Changes since MediaWiki 1.31.0-rc.0 ===
140 * (T33223) Drop archive.ar_text and ar_flags.
141 * Add default edit rate limit of 90 edits/minute for all users.
142 * (T187645) Use codepoint as tiebreaker when getting first-letters in
144 * (T191947) Don't shell during the installer if shelling out is disabled.
145 * (T194319) Improve duplicate config setting exception as part of extension
147 * (T195211) Don't require trailing slash in PSR-4 autoloader directory.
148 * (T186565) Fix PHP Notice from `ob_end_flush()` in `FileRepo::streamFile()`.
149 * Do not incorrectly hide namespace input field in the installer.
150 * (T186456) Refactor checks looking for PEAR maik libraries to be clearer.
152 === Important pre-upgrade notes for 1.31 ===
153 * If you're using MySQL, SQLite, or MSSQL, are not using update.php to apply
154 schema changes, and cannot have downtime to run migrateArchiveText.php and
155 apply patch-drop-ar_text.sql manually, you'll have to apply a default value
156 to the ar_text and ar_flags columns of the archive table or make those
157 columns nullable before upgrading to MediaWiki 1.31.
158 maintenance/archives/patch-nullable-ar_text.sql shows how to do this for MySQL.
159 * The CologneBlue and Modern skins are no longer bundled with the tarball. You
160 will need to remove the wfLoadSkin() calls from your LocalSettings.php or
161 download them separately
162 (<https://www.mediawiki.org/wiki/Special:SkinDistributor>).
164 === Configuration changes in 1.31 ===
165 * $wgEnableAPI and $wgEnableWriteAPI are now deprecated and will be removed in
166 a future version. The API is now considered to be stable, secure and
168 * $wgUsejQueryThree was removed, as it is now the default. This was documented
169 as a temporary variable during the migration period, deprecated since 1.29.
170 * $wgLogoHD has been updated to support svg images and uses $wgLogo where
171 possible for fallback images such as png.
172 * (T44246) $wgFilterLogTypes will no longer ignore 'patrol' when user does not
173 have the right to mark things patrolled.
174 * Wikis that contain imported revisions or CentralAuth global blocks should run
175 maintenance/cleanupUsersWithNoId.php.
176 * The configuration settings $wgResourceLoaderMinifierStatementsOnOwnLine and
177 $wgResourceLoaderMinifierMaxLineLength, deprecated since 1.27, were removed.
178 * (T180921) $wgReferrerPolicy now supports having fallbacks for browsers that
179 are not using the latest version of the Referrer Policy specification.
180 * $wgFragmentMode is now set to [ 'legacy', 'html5' ] by default. This is a
181 first step of migration to human-readable section IDs that will later result
182 in 'html5' being the default mode.
183 * CACHE_ACCEL now only supports APC(u) or WinCache. XCache support was removed
184 as upstream is inactive and has no plans to move to PHP 7.
185 * The old CategorizedRecentChanges feature, including its related configuration
186 option $wgAllowCategorizedRecentChanges, has been removed.
187 * (T188472) The 'comma' value for $wgArticleCountMethod is no longer supported
188 for performance reasons, and installations with this setting will now work as
189 if it was configured with 'any'.
190 * (T185753) MediaWiki now defaults to using RemexHtml to tidy up user input,
191 rather than being off by default. If you wish to disable HTML tidying
192 entirely, set $wgTidyConfig to null; if you wish to use the old, deprecated
193 Tidy external binary, both set $wgTidyConfig to null and $wgUseTidy to true.
194 * $wgLogAutopatrol now defaults to false instead of true.
195 * $wgValidateAllHtml was removed and will be ignored.
196 * $wgScriptExtension, deprecated and ignored since 1.25, was removed. See the
197 1.25 release notes for more information.
198 * $wgUseAjax is now marked as deprecated, just like the deprecated AJAX
199 framework that it enables. Some extensions mistakenly used this to check
200 whether any AJAX functionality at all should be enabled, further making this
201 problematic to retain.
202 * $wgDBmysql5 is now deprecated, and will be removed in a future version. It
203 has been marked as experimental ever since it was introduced.
204 * Fix $magicWords for the Sanskrit language
206 === New features in 1.31 ===
207 * (T76554) User sub-pages named ….json are now protected in the same way that
208 ….js and ….css pages are, so that configuration options can safely be placed
210 * Wikimedia\Rdbms\IDatabase->select() and similar methods now support joins
211 with parentheses for grouping.
212 * As a first pass in standardizing dialog boxes across the MediaWiki product,
213 Html class now provides helper methods for messageBox, successBox, errorBox
214 and warningBox generation.
215 * (T9240) Imports will now record unknown (and, optionally, known) usernames in
216 a format like "iw>Example".
217 * (T20209) Linker (used on history pages, log pages, and so on) will display
218 usernames formed like "iw>Example" as interwiki links, as if by wikitext like
219 [[iw:User:Example|iw>Example]].
220 * (T111605) The 'ImportHandleUnknownUser' hook allows extensions to auto-create
221 users during an import.
222 * Added a hook, ParserOutputPostCacheTransform, to allow extensions to affect
223 the ParserOutput::getText() post-cache transformations.
224 * Added a hook, UploadForm:getInitialPageText, to allow extensions to alter the
225 initial page text for file uploads.
226 * (T181651) The info page for File pages now displays the file's base-16 SHA1
227 hash value in the table of basic information.
228 * Style tags with a 'data-mw-deduplicate' attribute will be deduplicated as a
229 ParserOutput::getText() post-cache transformation. This may be disabled by
230 passing 'deduplicateStyles' => false to that method.
231 * The identity of the logged-in or IP "actor" for logged actions is being moved
232 into a new actor table, with the rows in tables such as revision and logging
233 referring to the actor ID instead of storing the user ID and name/IP in
235 * This is currently gated by $wgActorTableSchemaMigrationStage. Most wikis
236 can set this to MIGRATION_NEW and run maintenance/migrateActors.php as
237 soon as any necessary extensions are updated.
238 * Most code accessing rows for logged actions from the database should use
239 the relevant getQueryInfo() methods to get the information needed to build
240 the SQL query. The ActorMigration class may also be used to get feature
241 -flagged information needed to access actor-related fields during the
243 * Added Wikimedia\Rdbms\IDatabase::cancelAtomic(), to roll back an atomic
244 section without having to roll back the whole transaction.
245 * Wikimedia\Rdbms\IDatabase::doAtomicSection(), non-native ::insertSelect(),
246 and non-MySQL ::replace() and ::upsert() no longer roll back the whole
247 transaction on failure.
248 * (T189785) Added a monthly heartbeat ping to the pingback feature.
249 * The CLI installer (maintenance/install.php) learned to detect and include
250 extensions. Pass --with-extensions to enable that feature.
251 * (T184791) rc_patrolled now has three states: "0" for unpatrolled,
252 "1" for manually patrolled and "2" for autopatrolled actions.
253 * Extensions can now set their type to "editor" if they provide an editor or
254 enhance the editing experience.
255 * Extensions can use a PSR-4 autoloader by setting an "AutoloadNamespaces"
256 property in extension.json. See the documentation at
257 <https://mediawiki.org/wiki/Manual:Extension.json/Schema#AutoloadNamespaces>
258 for more details and an example.
259 * (T19099) Tabs which link to pages that don't exist (like those to uncreated
260 discussion pages) now have a tooltip to indicate state, not just colour.
262 === External library changes in 1.31 ===
263 * pear/mail, pear/mail_mime and pear/mail_mime-decode have been moved from
264 suggested to required. These packages now must be installed via composer
265 and not via PEAR itself.
267 ==== Upgraded external libraries ====
268 * Updated jquery.chosen from v0.9.14 to v1.8.2.
269 * Updated composer/spdx-licenses from 1.1.4 to 1.3.0 (development dependency).
270 * Updated nikic/php-parser from 2.1.0 to 3.1.3 (development dependency).
271 * Updated wikimedia/ip-set from 1.1.0 to 1.2.0.
272 * Updated wikimedia/relpath from 2.0.0 to 2.1.1.
273 * Updated wikimedia/running-stat from 1.1.0 to 1.2.0.
274 * Updated wikimedia/wrappedstring from 2.2.0 to 2.3.0.
275 * Updated mediawiki/at-ease from 1.1.0 to 1.2.0.
276 * Updated wikimedia/php-session-serializer from 1.0.4 to 1.0.6.
277 * Updated wikimedia/remex-html from 1.0.2 to 1.0.3.
278 * Updated wikimedia/html-formatter from 1.0.1 to 1.0.2.
280 ==== New external libraries ====
281 * Added wikimedia/object-factory 1.0.0
283 ==== Removed and replaced external libraries ====
284 * (T17845) The deprecated 'jquery.badge' module was removed.
285 * The deprecated 'jquery.autoEllipsis' module was removed. Use the CSS
286 text-overflow property instead.
287 * The deprecated 'jquery.placeholder' module was removed.
288 * The deprecated 'jquery.appear' module was removed. Use the
289 'mediawiki.viewport' module instead.
290 * mediawiki/at-ease was replaced with wikimedia/at-ease.
292 === Bug fixes in 1.31 ===
293 * (T90902) Non-breaking space in header ID breaks anchor.
294 * (T189375) CSSMin now allows quoted urls in `url()` syntax to start with a
296 * (T2087, T10897, T87753, T174639) Whitespace created by category and language
297 links is now stripped rather than leaving blank lines in odd places.
298 * (T3780) Uploads with UTF-8 names now work on PHP7.1+ on Windows servers.
299 * (T182366) UploadBase::checkXMLEncodingMissmatch() now works on PHP 7.1+
301 === Action API changes in 1.31 ===
302 * (T185058) The 'name' value to tgprop for action=query&list=tags has been
303 removed. It has never made a difference in the output, the name was always
305 * The 'watch' and 'unwatch' parameters for action=move have been removed. They
306 were deprecated and also accidentally nonfunctional since 1.17 in 2010. Use
309 === Action API internal changes in 1.31 ===
310 * ApiBase::getProfileDBTime, deprecated since 1.25, was removed.
311 * ApiBase::getModuleProfileName, deprecated since 1.25, was removed.
312 * ApiBase::getProfileTime, deprecated since 1.25, was removed.
314 === Languages updated in 1.31 ===
315 MediaWiki supports over 350 languages. Many localisations are updated
316 regularly. Below only new and removed languages are listed, as well as
317 changes to languages because of Phabricator reports.
319 * (T180052) Mirandese (mwl) now supports gendered NS_USER/NS_USER_TALK.
320 * (T182305) New language support: Nyungar (nys).
321 * (T186359) New language support: Siberian Tatar [cебертатар] (sty).
322 * (T186635) New language support: Guianan Creole (gcr).
323 * (T186647) New language support: Kumyk [къумукъ] (kum).
324 * (T187750) New language support: Spanish formal address (es-formal).
325 * (T187824) New language support: Hungarian formal address (hu-formal).
326 * (T189127) New language support: Gorontalo (gor).
328 === Breaking changes in 1.31 ===
329 * MessageBlobStore::insertMessageBlob(), deprecated in 1.27, was removed.
330 * The OutputPage class constructor now requires a context parameter.
331 Instantiating without context was deprecated in 1.18.
332 * The mw.page JavaScript singleton, deprecated in 1.30, was removed.
333 * Article::getLastPurgeTimestamp(), WikiPage::getLastPurgeTimestamp(), and the
334 related WikiPage::PURGE_* constants, deprecated in 1.29, were removed.
335 * The Article::selectFields(), ::onArticleCreate(), ::onArticleDelete(), and
336 ::onArticleEdit() methods, deprecated in 1.24, were removed.
337 * Installer::locateExecutable() and ::locateExecutableInDefaultPaths() were
338 removed. Use ExecutableFinder::findInDefaultPaths() instead.
339 * The deprecated MW_DIFF_VERSION constant was removed.
340 DifferenceEngine::MW_DIFF_VERSION should be used instead.
341 * Due to significant refactoring, method ContribsPager::getUserCond() that had
342 no access restriction has been removed.
343 * The Block class will no longer accept usable-but-missing usernames for
344 'byText' or ->setBlocker(). Callers should either ensure the blocker exists
345 locally or use a new interwiki-format username like "iw>Example".
346 * The following methods and constants from the WatchedItem class, which were
347 deprecated in 1.27, have been removed:
348 * WatchedItem::getTitle()
349 * WatchedItem::fromUserTitle()
350 * WatchedItem::addWatch()
351 * WatchedItem::removeWatch()
352 * WatchedItem::isWatched()
353 * WatchedItem::duplicateEntries()
354 * WatchedItem::IGNORE_USER_RIGHTS
355 * WatchedItem::CHECK_USER_RIGHTS
356 * WatchedItem::DEPRECATED_USAGE_TIMESTAMP
357 * The $statementsOnOwnLine parameter of JavaScriptMinifier::minify was removed.
358 $wgResourceLoaderMinifierStatementsOnOwnLine, the corresponding configuration
359 variable, has been deprecated since 1.27 and was removed as well.
360 * The $maxLineLength parameter of JavaScriptMinifier::minify was removed.
361 $wgResourceLoaderMinifierMaxLineLength, the corresponding configuration
362 variable, has been deprecated since 1.27 and was removed as well.
363 * The HtmlFormatter class, deprecated in 1.27, was removed. The namespaced
364 HtmlFormatter\HtmlFormatter class should be used instead.
365 * The driver 'mysql' for MySQL, deprecated in MediaWiki 1.30, has been removed.
366 The driver has been deprecated since PHP 5.5 and was removed in PHP 7.0. The
367 default driver for MySQL has been 'mysqli' since MediaWiki 1.22.
368 * The following properties of PreparedEdit were deprecated in 1.21 and have
370 * PreparedEdit->newText
371 * PreparedEdit->oldText
373 * ParserOutput objects which are generated using a non-default value for
374 ParserOptions::setWrapOutputClass() can no longer be added to the parser
376 * The following deprecated methods from the OutputPage class have been removed:
377 * OutputPage::addExtensionStyle(); deprecated in 1.27
378 * OutputPage::getExtStyle(); deprecated in 1.27
379 * OutputPage::setETag(); deprecated in 1.28 (obsolete no-op)
380 * OutputPage::setSquidMaxage(); deprecated in 1.27
381 * OutputPage::readOnlyPage(); deprecated in 1.25
382 * OutputPage::rateLimited(); deprecated in 1.25
383 * Additionally, the protected OutputPage::$mExtStyles array, only accessed
384 through the above and with no known uses, was removed.
385 * The no-op method Skin::showIPinHeader(), deprecated in 1.27, was removed.
386 * The following variables and methods in EditPage, deprecated in MediaWiki 1.30,
388 * $isCssJsSubpage — use ::isUserConfigPage()
389 * $isCssSubpage — use ::isUserCssConfigPage()
390 * $isJsSubpage — use ::isUserJsConfigPage()
391 * $isWrongCaseCssJsPage – use ::isWrongCaseUserConfigPage()
392 * ::getSummaryInput() – use ::getSummaryInputWidget()
393 * ::getSummaryInputOOUI() – use ::getSummaryInputWidget()
394 * ::getCheckboxes() – use ::getCheckboxesWidget() or
395 ::getCheckboxesDefinition()
396 * ::getCheckboxesOOUI() – use ::getCheckboxesWidget() or
397 ::getCheckboxesDefinition()
398 * ResourceLoaderModule::getPosition(), deprecated in 1.29, has been removed.
399 * In User, the cookie-related methods which were wrappers for the functions on
400 the response object, and were deprecated in 1.27, have been removed:
403 * ::setExtendedLoginCookie()
404 Note that User::setCookies() remains, and is not deprecated.
405 * Also in User, some auth-related methods which were deprecated in 1.27 have
407 * ::getEditTokenTimestamp() – use MediaWiki\Session\Token::getTimestamp()
408 * ::getPasswordFactory() – create a PasswordFactory directly
409 * ::passwordChangeInputAttribs()
410 * The global functions wfProfileIn and wfProfileOut, deprecated in 1.25, have
412 * SpecialPageFactory::getList(), deprecated in 1.24, has been removed. You can
413 use ::getNames() instead.
414 * OpenSearch::getOpenSearchTemplate(), deprecated in 1.25, has been removed. You
415 can use ApiOpenSearch::getOpenSearchTemplate() instead.
416 * The global function wfBaseConvert, deprecated in 1.27, has been removed. Use
417 Wikimedia\base_convert() directly.
418 * Calling Database::begin() explicitly during an implicit transaction or when
419 DBO_TRX is set results in an exception. Calling Database::commit() explicitly
420 for an implicit transaction also results in an exception. Previously these
421 were logged as errors. The startAtomic() and endAtomic() methods, or
422 AtomicSectionUpdate should be used instead.
423 * The global function wfOutputHandler() was removed, use the its replacement
424 MediaWiki\OutputHandler::handle() instead. The global function was only
425 sometimes defined. Its replacement is always available via the autoloader.
426 * ChangeTags::listExtensionActivatedTags and ::listExtensionDefinedTags,
427 deprecated in 1.28, have been removed. Use ::listSoftwareActivatedTags() and
428 ::listSoftwareDefinedTags() instead.
429 * Title::getTitleInvalidRegex(), deprecated in 1.25, has been removed. You can
430 use MediaWikiTitleCodec::getTitleInvalidRegex() instead.
431 * HTMLForm & VFormHTMLForm::isVForm(), deprecated in 1.25, have been removed.
432 * The ProfileSection class, deprecated in 1.25 and unused, has been removed.
433 * The ResourceLoaderGetLessVars hook, deprecated in 1.30, has been removed. Use
434 ResourceLoaderModule::getLessVars() to expose local variables instead of
436 * As part of work to modernise user-generated content clean-up, a config option
437 and some methods related to HTML validity were removed without deprecation.
438 The public methods MWTidy::checkErrors() and the path through which it was
439 called, TidyDriverBase::validate(), are removed, as are the testing methods
440 MediaWikiTestCase::assertValidHtmlSnippet() and ::assertValidHtmlDocument().
441 The $wgValidateAllHtml configuration option is removed and will be ignored.
442 * Execution of external programs using MediaWiki\Shell\Command now applies
443 the RESTRICT_DEFAULT Firejail restriction by default.
444 * The ResourceLoaderModule::getHashMtime() and ::getDefinitionMtime() methods,
445 deprecated in 1.26, were removed.
446 * The deprecated 'mediawiki.widgets.CategorySelector' module alias was removed.
447 Use the 'mediawiki.widgets.CategoryMultiselectWidget' module directly.
449 === Deprecations in 1.31 ===
450 * The Revision class was deprecated in favor of RevisionStore, BlobStore, and
451 RevisionRecord and its subclasses.
452 * The global function wfBCP47 is deprecated in favour of LanguageCode::bcp47.
453 * The global function wfCountDown is now deprecated in favor of
454 Maintenance::countDown.
455 * Several methods for returning lists of fields to select from the database
456 have been deprecated in favor of similar methods that also return the tables
457 to select from and the join conditions for those tables.
458 * Block::selectFields() → Block::getQueryInfo()
459 * RecentChange::selectFields() → RecentChange::getQueryInfo()
460 * ArchivedFile::selectFields() → ArchivedFile::getQueryInfo()
461 * LocalFile::selectFields() → LocalFile::getQueryInfo()
462 * LocalFile::getCacheFields() with a prefix no longer works
463 * LocalFile::getLazyCacheFields() with a prefix no longer works
464 * OldLocalFile::selectFields() → OldLocalFile::getQueryInfo()
465 * RecentChange::selectFields() → RecentChange::getQueryInfo()
466 * Revision::userJoinCond() → Revision::getQueryInfo( [ 'user' ] )
467 * Revision::selectUserFields() → Revision::getQueryInfo( [ 'user' ] )
468 * Revision::pageJoinCond() → Revision::getQueryInfo( [ 'page' ] )
469 * Revision::selectPageFields() → Revision::getQueryInfo( [ 'page' ] )
470 * Revision::selectTextFields() → Revision::getQueryInfo( [ 'text' ] )
471 * Revision::selectFields() → Revision::getQueryInfo()
472 * Revision::selectArchiveFields() → Revision::getArchiveQueryInfo()
473 * User::selectFields() → User::getQueryInfo()
474 * WikiPage::selectFields() → WikiPage::getQueryInfo()
475 * Revision::setUserIdAndName() was deprecated.
476 * Access to TitleValue class properties was deprecated, the relevant getters
477 should be used instead.
478 * DifferenceEngine::getDiffBodyCacheKey() is deprecated. Subclasses should
479 override DifferenceEngine::getDiffBodyCacheKeyParams() instead.
480 * Use of Maintenance::error( $err, $die ) to exit script was deprecated. Use
481 Maintenance::fatalError() instead.
482 * Passing a ParserOptions object to OutputPage::parserOptions() is deprecated.
483 * The RevisionInsertComplete hook is now deprecated; use instead the hook
484 RevisionRecordInserted. RevisionInsertComplete is still called, but the second
485 and third parameter will always be null. Hard deprecation is scheduled for 1.32.
486 * The following methods that get and set ParserOutput state are deprecated.
487 Callers should use the new stateless $options parameter to
488 ParserOutput::getText() instead.
489 * ParserOptions::getEditSection()
490 * ParserOptions::setEditSection()
491 * ParserOutput::getEditSectionTokens()
492 * ParserOutput::setEditSectionTokens()
493 * ParserOutput::getTOCEnabled()
494 * ParserOutput::setTOCEnabled()
495 * OutputPage::enableSectionEditLinks()
496 * OutputPage::sectionEditLinksEnabled()
497 * The public ParserOutput state fields $mTOCEnabled and $mEditSectionTokens
499 * License::getLicenses has been deprecated; use License::getLines instead.
500 * QuickTemplate::setRef() was deprecated in favour of QuickTemplate::set().
501 Setting template variables by reference allowed violating the principle of
502 data being immutable once added to the skin template. In practice, this method
503 was not being used for that. Rather, setRef() existed as memory optimisation
505 * QuickTemplate::setTranslator() and MediaWikiI18N::set() were deprecated in
506 favour of Skin::msg() parameters.
507 * MediaWikiI18N::translate() was deprecated in favour of Skin::msg() or
509 * Passing false to ParserOptions::setWrapOutputClass() is deprecated. Use the
510 'unwrap' transform to ParserOutput::getText() instead.
511 * \ObjectFactory (no namespace) is deprecated, the namespaced class
512 \Wikimedia\ObjectFactory from the wikimedia/object-factory library should be
514 * CommentStore::newKey is deprecated. Instead, get an instance from
516 * The following CommentStore methods have had their signatures changed to
517 introduce a $key parameter, usage of the methods on instances retrieved from
518 CommentStore::newKey will remain unchanged but deprecated:
519 * CommentStore::getFields
520 * CommentStore::getJoin
521 * CommentStore::getComment
522 * CommentStore::getCommentLegacy
523 * CommentStore::insert
524 * CommentStore::insertWithTemplate
525 * The following methods in Title have been renamed, and the old ones are
527 * Title::getSkinFromCssJsSubpage – use ::getSkinFromConfigSubpage
528 * Title::isCssOrJsPage – use ::isSiteConfigPage
529 * Title::isCssJsSubpage – use ::isUserConfigPage
530 * Title::isCssSubpage – use ::isUserCssConfigPage
531 * Title::isJsSubpage – use ::isUserJsConfigPage
532 * The following methods related to caching of half-parsed HTML were deprecated:
533 * Parser::serializeHalfParsedText()
534 * Parser::unserializeHalfParsedText()
535 * Parser::isValidHalfParsedText()
536 * StripState::getSubState()
537 * StripState::merge()
538 * The DeferredStringifier class is deprecated, use Message::listParam() instead.
539 * The type string for the parameter $lang of DateFormatter::getInstance is
541 * Wikimedia\Rdbms\SavepointPostgres is deprecated.
542 * The DO_MAINTENANCE constant is deprecated. RUN_MAINTENANCE_IF_MAIN should be
544 * The function wfShellWikiCmd() has been deprecated, use
545 MediaWiki\Shell::makeScriptCommand().
546 * In the future, the hooks 'PreferencesFormPreSave' and 'PreferencesGetLegend'
547 will be allowed to provide any HTMLForm object rather than PreferencesForm.
549 === Other changes in 1.31 ===
550 * Browser support for Internet Explorer 10 was lowered from Grade A to Grade C.
551 * Browser support for Opera 12 and older was dropped entirely. Opera 15+
552 continues at Grade A.
553 * Multi-content-revision capability was introduced into the storage layer. See
554 <https://mediawiki.org/wiki/Requests_for_comment/Multi-Content_Revisions>.
555 * The "free" CSS class is now only applied to unbracketed URLs in wikitext.
556 Links written using square brackets will get the class "text" not "free".
557 * RFC 157418: Whitespace is trimmed from wikitext headings, wikitext list items,
558 wikitext table captions, wikitext table headings, wikitext table cells. HTML
559 headings, HTML list items, HTML table captions, HTML table headings, HTML
560 table cells will not have this trimming behavior.
563 MediaWiki 1.31 requires PHP 7.0.13 or later. Although HHVM 3.18.5 or later is
564 supported, it is generally advised to use PHP 7.0.13 or later for long term
565 support. MediaWiki requires that the mbstring, xml, ctype, json, iconv and
566 fileinfo PHP extensions are loaded to work.
568 MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
569 but support for them is somewhat less mature. There is experimental support for
570 Oracle and Microsoft SQL Server.
572 The supported versions are:
574 * MySQL 5.5.8 or later
575 * PostgreSQL 9.2 or later
576 * SQLite 3.3.7 or later
577 * Oracle 9.0.1 or later
578 * Microsoft SQL Server 2005 (9.00.1399)
581 1.31 has several database changes since 1.30, and will not work without schema
582 updates. Note that due to changes to some very large tables like the revision
583 table, the schema update may take quite long (minutes on a medium sized site,
584 many hours on a large site).
586 Don't forget to always back up your database before upgrading!
588 See the file UPGRADE for more detailed upgrade instructions, including
589 important information when upgrading from versions prior to 1.11.
591 For notes on 1.30.x and older releases, see HISTORY.
593 == Online documentation ==
594 Documentation for both end-users and site administrators is available on
595 MediaWiki.org, and is covered under the GNU Free Documentation License (except
596 for pages that explicitly state that their contents are in the public domain):
598 https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
601 A mailing list is available for MediaWiki user support and discussion:
603 https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
605 A low-traffic announcements-only list is also available:
607 https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
609 It's highly recommended that you sign up for one of these lists if you're
610 going to run a public MediaWiki, so you can be notified of security fixes.
613 There's usually someone online in #mediawiki on irc.freenode.net.