1 Security reminder: If you have PHP's register_globals option set, you must
2 turn it off. MediaWiki will not work with it enabled.
6 THIS IS NOT A RELEASE YET
8 MediaWiki 1.25 is an alpha-quality branch and is not recommended for use in
11 === Configuration changes in 1.25 ===
12 * $wgPageShowWatchingUsers was removed.
13 * $wgLocalVirtualHosts has been added to replace $wgConf->localVHosts.
14 * $wgAntiLockFlags was removed.
15 * $wgJavaScriptTestConfig was removed.
16 * Edit tokens returned from User::getEditToken may change on every call. Token
17 validity must be checked by passing the user-supplied token to
18 User::matchEditToken rather than by testing for equality with a
19 newly-generated token.
20 * (T74951) The UserGetLanguageObject hook may be passed any IContextSource
21 for its $context parameter. Formerly it was documented as receiving a
22 RequestContext specifically.
23 * Profiling was restructured and $wgProfiler now requires an 'output' parameter.
24 See StartProfiler.sample for details.
25 * $wgMangleFlashPolicy was added to make MediaWiki's mangling of anything that
26 might be a flash policy directive configurable.
27 * ApiOpenSearch now supports XML output. The OpenSearchXml extension should no
28 longer be used. If extracts and page images are desired, the TextExtracts and
29 PageImages extensions are required.
30 * $wgOpenSearchTemplate is deprecated in favor of $wgOpenSearchTemplates.
31 * Edits are now prepared via AJAX as users type edit summaries. This behavior
32 can be disabled via $wgAjaxEditStash.
33 * (T46740) The temporary option $wgIncludejQueryMigrate was removed, along
34 with the jQuery Migrate library, as indicated when this option was provided in
37 === New features in 1.25 ===
38 * (T64861) Updated plural rules to CLDR 26. Includes incompatible changes
39 for plural forms in Russian, Prussian, Tagalog, Manx and several languages
40 that fall back to Russian.
41 * (T60139) ResourceLoaderFileModule now supports language fallback
42 for 'languageScripts'.
43 * Added a new hook, "ContentAlterParserOutput", to allow extensions to modify the
44 parser output for a content object before links update.
45 * (T37785) Enhanced recent changes and extended watchlist are now default.
46 Documentation: https://meta.wikimedia.org/wiki/Help:Enhanced_recent_changes
47 and https://www.mediawiki.org/wiki/Manual:$wgDefaultUserOptions.
48 * (T69341) SVG images will no longer be base64-encoded when being embedded
49 in CSS. This results in slight size increase before gzip compression (due to
50 percent-encoding), but up to 20% decrease after it.
51 * Upgrade jStorage to v0.4.12.
52 * MediaWiki now natively supports page status indicators: icons (or short text
53 snippets) usually displayed in the top-right corner of the page. They have
54 been in use on Wikipedia for a long time, implemented using templates and CSS
56 - Basic wikitext syntax: <indicator name="foo">[[File:Foo.svg|20px]]</indicator>
57 - Usage instructions: https://www.mediawiki.org/wiki/Help:Page_status_indicators
58 - Adjusting custom skins to support indicators:
59 https://www.mediawiki.org/wiki/Manual:Skinning#Page_status_indicators
60 * Edit tokens may now be time-limited: passing a maximum age to
61 User::matchEditToken will reject any older tokens.
62 * The debug logging internals have been overhauled, and are now using the
64 * Update CSSJanus to v1.1.1.
65 * Update lessphp to v0.5.0.
66 * Added a hook, "ApiOpenSearchSuggest", to allow extensions to provide extracts
67 and images for ApiOpenSearch output. The semantics are identical to the
68 "OpenSearchXml" hook provided by the OpenSearchXml extension.
69 * PrefixSearchBackend hook now has an $offset parameter. Combined with $limit,
70 this allows for pagination of prefix results. Extensions using this hook
71 should implement supporting behavior. Not doing so can result in undefined
72 behavior from API clients trying to continue through prefix results.
73 * Update jQuery from v1.11.1 to v1.11.2.
75 ==== External libraries ====
76 * MediaWiki now requires certain external libraries to be installed. In the past
77 these were bundled inside the Git repository of MediaWiki core, but now they
78 need to be installed separately. For users using the tarball, this will be taken
79 care of and no action will be required. Users using Git will either need to use
80 composer to fetch dependencies or use the mediawiki/vendor repository which includes
81 all dependencies for MediaWiki core and ones used in Wikimedia deployment. Detailed
82 instructions can be found at:
83 https://www.mediawiki.org/wiki/Download_from_Git#Fetch_external_libraries
84 * The following libraries are now required:
86 This library provides the interfaces set by the PSR-3 standard (http://www.php-fig.org/psr/psr-3/)
87 which are used by MediaWiki interally by the MWLogger class.
88 See the structured logging RfC (https://www.mediawiki.org/wiki/Requests_for_comment/Structured_logging)
89 for more background information.
91 This library was formerly bundled with MediaWiki core and has been removed.
92 It automatically flips CSS for RTL support.
94 This library was formerly bundled with MediaWiki core and has been removed.
95 It compiles LESS files into CSS.
97 This library was formerly a part of MediaWiki core, and has been moved into a separate library.
98 It provides CDB functions which are used in the Interwiki and Localization caches.
99 More information about the library can be found at https://www.mediawiki.org/wiki/CDB.
101 === Bug fixes in 1.25 ===
102 * (T73003) No additional code will be generated to try to load CSS-embedded
103 SVG images in Internet Explorer 6 and 7, as they don't support them anyway.
104 * (T69021) On Special:BookSources, corrected validation of ISBNs (both
105 10- and 13-digit forms) containing "X".
106 * Page moving was refactored into a MovePage class. As part of that:
107 ** The AbortMove hook was removed.
108 ** MovePageIsValidMove is for extensions to specify whether a page
109 cannot be moved for technical reasons, and should not be overridden.
110 ** MovePageCheckPermissions is for checking whether the given user is
111 allowed to make the move.
112 ** Title::moveNoAuth() was deprecated. Use the MovePage class instead.
113 ** Title::moveTo() was deprecated. Use the MovePage class instead.
114 ** Title::isValidMoveOperation() broken down into MovePage::isValidMove()
115 and MovePage::checkPermissions().
116 * (T18530) Multiple autocomments are now formatted in an edit summary.
117 * (T70361) Autocomments containing "/*" are parsed correctly.
118 * The Special:WhatLinksHere page linked from 'Number of redirects to this page'
119 on action=info about a file page does not list file links anymore.
120 * (T78637) Search bar is not autofocused unless it is empty so that proper scrolling using arrow keys is possible.
122 === Action API changes in 1.25 ===
123 * (T67403) XML tag highlighting is now only performed for formats
124 "xmlfm" and "wddxfm".
125 * action=paraminfo supports generalized submodules (modules=query+value),
126 querymodules and formatmodules are deprecated
127 * action=paraminfo no longer outputs descriptions and other help text by
128 default. If needed, it may be requested using the new 'helpformat' parameter.
129 * action=help has been completely rewritten, and outputs help in HTML
130 rather than plain text.
131 * Hitting api.php without specifying an action now displays only the help for
132 the main module, with links to submodule help.
133 * API help is no longer displayed on errors.
134 * 'uselang' is now a recognized API parameter; "uselang=user" may be used to
135 explicitly select the language from the current user's preferences, and
136 "uselang=content" may be used to select the wiki's content language.
137 * Default output format for the API is now jsonfm.
138 * Simplified continuation will return a "batchcomplete" property in the result
139 when a batch of pages is complete.
140 * Pretty-printed HTML output now has nicer formatting and (if available)
141 better syntax highlighting.
142 * Deprecated list=deletedrevs in favor of newly-added prop=deletedrevisions and
143 list=alldeletedrevisions.
144 * prop=revisions will gracefully continue when given too many revids or titles,
145 rather than just ignoring the extras.
146 * prop=revisions will no longer die if rvcontentformat doesn't match a
147 revision's content model; it will instead warn and omit the content.
148 * If the user has the 'deletedhistory' right, action=query's revids parameter
149 will now recognize deleted revids.
150 * prop=revisions may be used as a generator, generating revids.
151 * (T68776) format=json results will no longer be corrupted when
152 $wgMangleFlashPolicy is in effect. format=php results will cleanly return an
153 error instead of returning invalid serialized data.
154 * Generators may now return data for the generated pages when used with
156 * Query page data for generator=search and generator=prefixsearch will now
157 include an "index" field, which may be used by the client for sorting the
159 * ApiOpenSearch now supports XML output.
160 * ApiOpenSearch will now output descriptions and URLs as array indexes 2 and 3
162 * (T76051) list=tags will now continue correctly.
163 * (T76052) list=tags can now indicate whether a tag is defined.
164 * (T75522) list=prefixsearch now supports continuation
165 * (T78737) action=expandtemplates can now return page properties.
166 * (T78690) list=allimages now accepts multiple pipe-separated values
167 for the 'aimime' parameter.
169 === Action API internal changes in 1.25 ===
170 * ApiHelp has been rewritten to support i18n and paginated HTML output.
171 Most existing modules should continue working without changes, but should do
173 * Add an i18n message "apihelp-{$moduleName}-description" to replace getDescription().
174 * Add i18n messages "apihelp-{$moduleName}-param-{$param}" for each parameter
175 to replace getParamDescription(). If necessary, the settings array returned
176 by getParams() can use the new ApiBase::PARAM_HELP_MSG key to override the
178 * Implement getExamplesMessages() to replace getExamples().
179 * Modules with submodules (like action=query) must have their submodules
180 override ApiBase::getParent() to return the correct parent object.
181 * The 'APIGetDescription' and 'APIGetParamDescription' hooks are deprecated,
182 and will have no effect for modules using i18n messages. Use
183 'APIGetDescriptionMessages' and 'APIGetParamDescriptionMessages' instead.
184 * Api formatters will no longer be asked to display the help screen on errors.
185 * ApiMain::getCredits() was removed. The credits are available in the
186 'api-credits' i18n message.
187 * ApiFormatBase has been changed to support i18n and syntax highlighting via
188 extensions with the new 'ApiFormatHighlight' hook. Core syntax highlighting
190 * ApiFormatBase now always buffers. Output is done when
191 ApiFormatBase::closePrinter is called.
192 * Much of the logic in ApiQueryRevisions has been split into ApiQueryRevisionsBase.
193 * The 'revids' parameter supplied by ApiPageSet will now count deleted
194 revisions as "good" if the user has the 'deletedhistory' right. New methods
195 ApiPageSet::getLiveRevisionIDs() and ApiPageSet::getDeletedRevisionIDs() are
196 provided to access just the live or just the deleted revids.
197 * Added ApiPageSet::setGeneratorData() and ApiPageSet::populateGeneratorData()
198 to allow generators to include data in the action=query result.
199 * The following methods have been deprecated and may be removed in a future
201 * ApiBase::getDescription
202 * ApiBase::getParamDescription
203 * ApiBase::getExamples
204 * ApiBase::makeHelpMsg
205 * ApiBase::makeHelpArrayToString
206 * ApiBase::makeHelpMsgParameters
207 * ApiFormatBase::setUnescapeAmps
208 * ApiFormatBase::getWantsHelp
209 * ApiFormatBase::setHelp
210 * ApiFormatBase::formatHTML
211 * ApiFormatBase::setBufferResult
212 * ApiFormatBase::getDescription
214 * ApiMain::reallyMakeHelpMsg
215 * ApiMain::makeHelpMsgHeader
216 * ApiQueryImageInfo::getPropertyDescriptions
217 * The following classes have been deprecated and may be removed in a future
219 * ApiQueryDeletedrevs
221 === Languages updated in 1.25 ===
223 MediaWiki supports over 350 languages. Many localisations are updated
224 regularly. Below only new and removed languages are listed, as well as
225 changes to languages because of Bugzilla reports.
227 * (T66440) Kazakh (kk) wikis should no longer forcefully reset the user's
228 interface language to kk where unexpected.
230 === Other changes in 1.25 ===
231 * The skin autodiscovery mechanism, deprecated in MediaWiki 1.23, has been
232 removed. See https://www.mediawiki.org/wiki/Manual:Skin_autodiscovery for
233 migration guide for creators and users of custom skins that relied on it.
234 * Javascript variable 'wgFileCanRotate' and 'wgFileExtensions' now only
235 available on Special:Upload.
236 * (T58257) Set site logo from mediawiki.skinning.interface module instead of
237 inline styles in the HTML.
238 * Removed ApiQueryUsers::getAutoGroups(). (deprecated since 1.20)
239 * Removed XmlDumpWriter::schemaVersion(). (deprecated since 1.20)
240 * Removed LogEventsList::getDisplayTitle(). (deprecated since 1.20)
241 * Removed Preferences::trySetUserEmail(). (deprecated since 1.20)
242 * Removed mw.user.name() and mw.user.anonymous() methods. (deprecated since 1.20)
243 * Removed 'ok' and 'err' parameters in the mediawiki.api modules. (deprecated
245 * Removed 'async' parameter from the mw.Api#getCategories() method. (deprecated
247 * Removed 'jquery.json' module. (deprecated since 1.24)
248 Use the 'json' module and global JSON object instead.
249 * Deprecated OutputPage::readOnlyPage() and OutputPage::rateLimited().
250 Also, the former will now throw an MWException if called with one or more
252 * Removed hitcounters and associated code.
253 * The "temp" zone of the upload respository is now considered private. If it
254 already exists (such as under the images/ directory), please make sure that
255 the directory is not web readable (e.g. via a .htaccess file).
256 * BREAKING CHANGE: In the XML dump format used by Special:Export and
257 dumpBackup.php, the <model> and <format> tags now apprear before the <text>
258 tag, instead of after the <text> and <sha1> tags.
259 The new schema version is 0.10, the new schema URI is:
260 https://www.mediawiki.org/xml/export-0.10.xsd
261 * MWFunction::call() and MWFunction::callArray() were removed, having being
263 * Deprecated the getInternalLinkAttributes, getInternalLinkAttributesObj,
264 and getInternalLinkAttributes methods in Linker, and removed
265 getExternalLinkAttributes method, which was deprecated in MediaWiki 1.18.
266 * Removed Sites class, which was deprecated in 1.21 and replaced by SiteSQLStore.
267 * The mw.api.getToken() method now uses action=query?meta=tokens. This will now
268 fail for custom tokens registered only via the deprecated ApiTokensGetTokenTypes
269 hook. The ApiQueryTokensRegisterTypes hook should be used for this to work.
270 * Added wgRelevantArticleId to the client-side config, for use on special pages.
271 * Deprecated the TitleIsCssOrJsPage hook. Superseded by the
272 ContentHandlerDefaultModelFor hook since MediaWiki 1.21.
273 * Deprecated the TitleIsWikitextPage hook. Superseded by the
274 ContentHandlerDefaultModelFor hook since MediaWiki 1.21.
275 * Changed parsing of variables in schema (.sql) files:
276 ** The substituted values are no longer parsed. (Formerly, several passes
277 were made for each variable, so depending on the order in which variables
278 were defined, variables might have been found inside encoded values. This
279 is no longer the case.)
280 ** Variables are no longer string encoded when the /*$var*/ syntax is used.
281 If string encoding is necessary, use the '{$var}' syntax instead.
282 ** Variable names must only consist of one or more of the characters
284 ** In source text of the form '{$A}'{$B}' or `{$A}`{$B}`, where variable A
285 does not exist yet variable B does, the latter may not be replaced.
286 However, this difference is unlikely to arise in practice.
287 * (T67278) RFC, PMID, and ISBN "magic links" must be surrounded by non-word
288 characters on both sides.
289 * The FormatAutocomments hook will now receive $pre and $post as booleans,
290 rather than as strings that must be prepended or appended to $comment.
291 * (T30950, T31025) RFC, PMID, and ISBN "magic links" can no longer contain
292 newlines; but they can contain and other non-newline whitespace.
296 MediaWiki 1.25 requires PHP 5.3.3 or later. There is experimental support for
299 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
300 support for them is somewhat less mature. There is experimental support for
301 Oracle and Microsoft SQL Server.
303 The supported versions are:
305 * MySQL 5.0.2 or later
306 * PostgreSQL 8.3 or later
307 * SQLite 3.3.7 or later
308 * Oracle 9.0.1 or later
309 * Microsoft SQL Server 2005 (9.00.1399)
313 1.25 has several database changes since 1.24, and will not work without schema
314 updates. Note that due to changes to some very large tables like the revision
315 table, the schema update may take quite long (minutes on a medium sized site,
316 many hours on a large site).
318 If upgrading from before 1.11, and you are using a wiki as a commons
319 repository, make sure that it is updated as well. Otherwise, errors may arise
320 due to database schema changes.
322 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
323 new database fields are filled with data.
325 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
326 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
329 Don't forget to always back up your database before upgrading!
331 See the file UPGRADE for more detailed upgrade instructions.
333 For notes on 1.24.x and older releases, see HISTORY.
335 == Online documentation ==
337 Documentation for both end-users and site administrators is available on
338 MediaWiki.org, and is covered under the GNU Free Documentation License (except
339 for pages that explicitly state that their contents are in the public domain):
341 https://www.mediawiki.org/wiki/Documentation
345 A mailing list is available for MediaWiki user support and discussion:
347 https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
349 A low-traffic announcements-only list is also available:
351 https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
353 It's highly recommended that you sign up for one of these lists if you're
354 going to run a public MediaWiki, so you can be notified of security fixes.
358 There's usually someone online in #mediawiki on irc.freenode.net.