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 * Edit tokens returned from User::getEditToken may change on every call. Token
16 validity must be checked by passing the user-supplied token to
17 User::matchEditToken rather than by testing for equality with a
18 newly-generated token.
19 * (T74951) The UserGetLanguageObject hook may be passed any IContextSource
20 for its $context parameter. Formerly it was documented as receiving a
21 RequestContext specifically.
22 * Profiling was restructured and $wgProfiler now requires an 'output' parameter.
23 See StartProfiler.sample for details.
24 * $wgMangleFlashPolicy was added to make MediaWiki's mangling of anything that
25 might be a flash policy directive configurable.
26 * ApiOpenSearch now supports XML output. The OpenSearchXml extension should no
27 longer be used. If extracts and page images are desired, the TextExtracts and
28 PageImages extensions are required.
29 * $wgOpenSearchTemplate is deprecated in favor of $wgOpenSearchTemplates.
31 === New features in 1.25 ===
32 * (T64861) Updated plural rules to CLDR 26. Includes incompatible changes
33 for plural forms in Russian, Prussian, Tagalog, Manx and several languages
34 that fall back to Russian.
35 * (T60139) ResourceLoaderFileModule now supports language fallback
36 for 'languageScripts'.
37 * Added a new hook, "ContentAlterParserOutput", to allow extensions to modify the
38 parser output for a content object before links update.
39 * (T37785) Enhanced recent changes and extended watchlist are now default.
40 Documentation: https://meta.wikimedia.org/wiki/Help:Enhanced_recent_changes
41 and https://www.mediawiki.org/wiki/Manual:$wgDefaultUserOptions.
42 * (T69341) SVG images will no longer be base64-encoded when being embedded
43 in CSS. This results in slight size increase before gzip compression (due to
44 percent-encoding), but up to 20% decrease after it.
45 * Upgrade jStorage to v0.4.12.
46 * MediaWiki now natively supports page status indicators: icons (or short text
47 snippets) usually displayed in the top-right corner of the page. They have
48 been in use on Wikipedia for a long time, implemented using templates and CSS
50 - Basic wikitext syntax: <indicator name="foo">[[File:Foo.svg|20px]]</indicator>
51 - Usage instructions: https://www.mediawiki.org/wiki/Help:Page_status_indicators
52 - Adjusting custom skins to support indicators:
53 https://www.mediawiki.org/wiki/Manual:Skinning#Page_status_indicators
54 * Edit tokens may now be time-limited: passing a maximum age to
55 User::matchEditToken will reject any older tokens.
56 * The debug logging internals have been overhauled, and are now using the
58 * Update CSSJanus to v1.1.1.
59 * Added a hook, "ApiOpenSearchSuggest", to allow extensions to provide extracts
60 and images for ApiOpenSearch output. The semantics are identical to the
61 "OpenSearchXml" hook provided by the OpenSearchXml extension.
62 * PrefixSearchBackend hook now has an $offset parameter. Combined with $limit,
63 this allows for pagination of prefix results. Extensions using this hook
64 should implement supporting behavior. Not doing so can result in undefined
65 behavior from API clients trying to continue through prefix results.
67 ==== External libraries ====
68 * MediaWiki now requires certain external libraries to be installed. In the past
69 these were bundled inside the git repository of MediaWiki core, but now they
70 need to be installed separately. For users using the tarball, this will be taken
71 care of and no action will be required. Users using git will either need to use
72 composer to fetch dependencies or use the mediawiki/vendor repository which includes
73 all dependencies for MediaWiki core and ones used in Wikimedia deployment. Detailed
74 instructions can be found at <https://www.mediawiki.org/wiki/Download_from_Git#Fetch_external_libraries>.
75 * The following libraries are now required:
77 *** This library provides the interfaces set by the PSR-3 standard (<http://www.php-fig.org/psr/psr-3/>)
78 which are used by MediaWiki interally by the MWLogger class.
79 *** See the structured logging RfC (<https://www.mediawiki.org/wiki/Requests_for_comment/Structured_logging>)
80 for more background information.
81 ** cssjanus/cssjanus 1.1.1
82 *** This library was formerly bundled with MediaWiki core and has now been removed. It automatically
83 flips CSS for RTL support.
84 ** leafo/lessphp 0.5.0
85 *** This library was formerly bundled with MediaWiki core and has now been removed. It compiles LESS
88 *** This library was formerly a part of MediaWiki core, and has now been split out into a separate library.
89 It provides CDB functions which are used in the Interwiki and Localization caches. More information
90 about the library can be found at <https://www.mediawiki.org/wiki/CDB>.
92 === Bug fixes in 1.25 ===
93 * (T73003) No additional code will be generated to try to load CSS-embedded
94 SVG images in Internet Explorer 6 and 7, as they don't support them anyway.
95 * (T69021) On Special:BookSources, corrected validation of ISBNs (both
96 10- and 13-digit forms) containing "X".
97 * Page moving was refactored into a MovePage class. As part of that:
98 ** The AbortMove hook was removed.
99 ** MovePageIsValidMove is for extensions to specify whether a page
100 cannot be moved for technical reasons, and should not be overriden.
101 ** MovePageCheckPermissions is for checking whether the given user is
102 allowed to make the move.
103 ** Title::moveNoAuth() was deprecated. Use the MovePage class instead.
104 ** Title::moveTo() was deprecated. Use the MovePage class instead.
105 ** Title::isValidMoveOperation() broken down into MovePage::isValidMove()
106 and MovePage::checkPermissions().
108 === Action API changes in 1.25 ===
109 * (T67403) XML tag highlighting is now only performed for formats
110 "xmlfm" and "wddxfm".
111 * action=paraminfo supports generalized submodules (modules=query+value),
112 querymodules and formatmodules are deprecated
113 * action=paraminfo no longer outputs descriptions and other help text by
114 default. If needed, it may be requested using the new 'helpformat' parameter.
115 * action=help has been completely rewritten, and outputs help in HTML
116 rather than plain text.
117 * Hitting api.php without specifying an action now displays only the help for
118 the main module, with links to submodule help.
119 * API help is no longer displayed on errors.
120 * 'uselang' is now a recognized API parameter; "uselang=user" may be used to
121 explicitly select the language from the current user's preferences, and
122 "uselang=content" may be used to select the wiki's content language.
123 * Default output format for the API is now jsonfm.
124 * Simplified continuation will return a "batchcomplete" property in the result
125 when a batch of pages is complete.
126 * Pretty-printed HTML output now has nicer formatting and (if available)
127 better syntax highlighting.
128 * Deprecated list=deletedrevs in favor of newly-added prop=deletedrevisions and
129 list=alldeletedrevisions.
130 * prop=revisions will gracefully continue when given too many revids or titles,
131 rather than just ignoring the extras.
132 * prop=revisions will no longer die if rvcontentformat doesn't match a
133 revision's content model; it will instead warn and omit the content.
134 * If the user has the 'deletedhistory' right, action=query's revids parameter
135 will now recognize deleted revids.
136 * prop=revisions may be used as a generator, generating revids.
137 * (T68776) format=json results will no longer be corrupted when
138 $wgMangleFlashPolicy is in effect. format=php results will cleanly return an
139 error instead of returning invalid serialized data.
140 * Generators may now return data for the generated pages when used with
142 * Query page data for generator=search and generator=prefixsearch will now
143 include an "index" field, which may be used by the client for sorting the
145 * ApiOpenSearch now supports XML output.
146 * ApiOpenSearch will now output descriptions and URLs as array indexes 2 and 3
148 * (T76051) list=tags will now continue correctly.
149 * (T76052) list=tags can now indicate whether a tag is defined.
150 * (T75522) list=prefixsearch now supports continuation
152 === Action API internal changes in 1.25 ===
153 * ApiHelp has been rewritten to support i18n and paginated HTML output.
154 Most existing modules should continue working without changes, but should do
156 * Add an i18n message "apihelp-{$moduleName}-description" to replace getDescription().
157 * Add i18n messages "apihelp-{$moduleName}-param-{$param}" for each parameter
158 to replace getParamDescription(). If necessary, the settings array returned
159 by getParams() can use the new ApiBase::PARAM_HELP_MSG key to override the
161 * Implement getExamplesMessages() to replace getExamples().
162 * Modules with submodules (like action=query) must have their submodules
163 override ApiBase::getParent() to return the correct parent object.
164 * The 'APIGetDescription' and 'APIGetParamDescription' hooks are deprecated,
165 and will have no effect for modules using i18n messages. Use
166 'APIGetDescriptionMessages' and 'APIGetParamDescriptionMessages' instead.
167 * Api formatters will no longer be asked to display the help screen on errors.
168 * ApiMain::getCredits() was removed. The credits are available in the
169 'api-credits' i18n message.
170 * ApiFormatBase has been changed to support i18n and syntax highlighting via
171 extensions with the new 'ApiFormatHighlight' hook. Core syntax highlighting
173 * ApiFormatBase now always buffers. Output is done when
174 ApiFormatBase::closePrinter is called.
175 * Much of the logic in ApiQueryRevisions has been split into ApiQueryRevisionsBase.
176 * The 'revids' parameter supplied by ApiPageSet will now count deleted
177 revisions as "good" if the user has the 'deletedhistory' right. New methods
178 ApiPageSet::getLiveRevisionIDs() and ApiPageSet::getDeletedRevisionIDs() are
179 provided to access just the live or just the deleted revids.
180 * Added ApiPageSet::setGeneratorData() and ApiPageSet::populateGeneratorData()
181 to allow generators to include data in the action=query result.
182 * The following methods have been deprecated and may be removed in a future
184 * ApiBase::getDescription
185 * ApiBase::getParamDescription
186 * ApiBase::getExamples
187 * ApiBase::makeHelpMsg
188 * ApiBase::makeHelpArrayToString
189 * ApiBase::makeHelpMsgParameters
190 * ApiFormatBase::setUnescapeAmps
191 * ApiFormatBase::getWantsHelp
192 * ApiFormatBase::setHelp
193 * ApiFormatBase::formatHTML
194 * ApiFormatBase::setBufferResult
195 * ApiFormatBase::getDescription
197 * ApiMain::reallyMakeHelpMsg
198 * ApiMain::makeHelpMsgHeader
199 * ApiQueryImageInfo::getPropertyDescriptions
200 * The following classes have been deprecated and may be removed in a future
202 * ApiQueryDeletedrevs
204 === Languages updated in 1.25 ===
206 MediaWiki supports over 350 languages. Many localisations are updated
207 regularly. Below only new and removed languages are listed, as well as
208 changes to languages because of Bugzilla reports.
210 * (T66440) Kazakh (kk) wikis should no longer forcefully reset the user's
211 interface language to kk where unexpected.
213 === Other changes in 1.25 ===
214 * The skin autodiscovery mechanism, deprecated in MediaWiki 1.23, has been
215 removed. See https://www.mediawiki.org/wiki/Manual:Skin_autodiscovery for
216 migration guide for creators and users of custom skins that relied on it.
217 * Javascript variable 'wgFileCanRotate' now only available on Special:Upload.
218 * (T58257) Set site logo from mediawiki.skinning.interface module instead of
219 inline styles in the HTML.
220 * Removed ApiQueryUsers::getAutoGroups(). (deprecated since 1.20)
221 * Removed XmlDumpWriter::schemaVersion(). (deprecated since 1.20)
222 * Removed LogEventsList::getDisplayTitle(). (deprecated since 1.20)
223 * Removed Preferences::trySetUserEmail(). (deprecated since 1.20)
224 * Removed mw.user.name() and mw.user.anonymous() methods. (deprecated since 1.20)
225 * Removed 'ok' and 'err' parameters in the mediawiki.api modules. (deprecated
227 * Removed 'async' parameter from the mw.Api#getCategories() method. (deprecated
229 * Removed 'jquery.json' module. (deprecated since 1.24)
230 Use the 'json' module and global JSON object instead.
231 * Deprecated OutputPage::readOnlyPage() and OutputPage::rateLimited().
232 Also, the former will now throw an MWException if called with one or more
234 * Removed hitcounters and associated code.
235 * The "temp" zone of the upload respository is now considered private. If it
236 already exists (such as under the images/ directory), please make sure that
237 the directory is not web readable (e.g. via a .htaccess file).
238 * BREAKING CHANGE: In the XML dump format used by Special:Export and
239 dumpBackup.php, the <model> and <format> tags now apprear before the <text>
240 tag, instead of after the <text> and <sha1> tags.
241 The new schema version is 0.10, the new schema URI is
242 <https://www.mediawiki.org/xml/export-0.10.xsd>.
243 * MWFunction::call() and MWFunction::callArray() were removed, having being
245 * Deprecated the getInternalLinkAttributes, getInternalLinkAttributesObj,
246 and getInternalLinkAttributes methods in Linker, and removed
247 getExternalLinkAttributes method, which was deprecated in MediaWiki 1.18.
248 * Removed Sites class, which was deprecated in 1.21 and replaced by SiteSQLStore.
249 * The mw.api.getToken() method now uses action=query?meta=tokens. This will now
250 fail for custom tokens registered only via the deprecated ApiTokensGetTokenTypes
251 hook. The ApiQueryTokensRegisterTypes hook should be used for this to work.
252 * Added wgRelevantArticleId to the client-side config, for use on special pages.
256 MediaWiki 1.25 requires PHP 5.3.3 or later. There is experimental support for
259 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
260 support for them is somewhat less mature. There is experimental support for
261 Oracle and Microsoft SQL Server.
263 The supported versions are:
265 * MySQL 5.0.2 or later
266 * PostgreSQL 8.3 or later
267 * SQLite 3.3.7 or later
268 * Oracle 9.0.1 or later
269 * Microsoft SQL Server 2005 (9.00.1399)
273 1.25 has several database changes since 1.24, and will not work without schema
274 updates. Note that due to changes to some very large tables like the revision
275 table, the schema update may take quite long (minutes on a medium sized site,
276 many hours on a large site).
278 If upgrading from before 1.11, and you are using a wiki as a commons
279 repository, make sure that it is updated as well. Otherwise, errors may arise
280 due to database schema changes.
282 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
283 new database fields are filled with data.
285 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
286 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
289 Don't forget to always back up your database before upgrading!
291 See the file UPGRADE for more detailed upgrade instructions.
293 For notes on 1.24.x and older releases, see HISTORY.
295 == Online documentation ==
297 Documentation for both end-users and site administrators is available on
298 MediaWiki.org, and is covered under the GNU Free Documentation License (except
299 for pages that explicitly state that their contents are in the public domain):
301 https://www.mediawiki.org/wiki/Documentation
305 A mailing list is available for MediaWiki user support and discussion:
307 https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
309 A low-traffic announcements-only list is also available:
311 https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
313 It's highly recommended that you sign up for one of these lists if you're
314 going to run a public MediaWiki, so you can be notified of security fixes.
318 There's usually someone online in #mediawiki on irc.freenode.net.