3 THIS IS NOT A RELEASE YET
5 MediaWiki 1.28 is an alpha-quality branch and is not recommended for use in
8 === Configuration changes in 1.28 ===
9 * BREAKING CHANGE: $wgHTTPProxy is now *required* for all external requests
10 made by MediaWiki via a proxy. Relying on the http_proxy environment
11 variable is no longer supported.
12 * The load.php entry point now enforces the existing policy of not allowing
13 access to session data, which includes the session user and the session
14 user's language. If such access is attempted, an exception will be thrown.
15 * The number of internal PBKDF2 iterations used to derive the session secret
16 is configurable via $wgSessionPbkdf2Iterations.
17 * Upload dialog's file upload log comment can now be configured separately for
18 local and foreign uploads.
19 * $wgForeignUploadTargets now defaults to `[ 'local' ]`, where `'local'`
20 signifies local uploads. A value of `[]` (empty array) now means that
21 no upload targets are allowed, effectively disabling the upload dialog.
22 * The deprecated $wgEditEncoding variable has been removed; it was only used
23 for Esperanto language character conversion. You are now recommended to use
24 input methods provided by the UniversalLanguageSelector extension.
25 * When $wgPingback is true, MediaWiki will periodically ping
26 https://www.mediawiki.org/beacon with basic information about the local
27 MediaWiki installation. This data includes, for example, the type of system,
28 PHP version, and chosen database backend. This behavior is off by default.
29 * When $EditSubmitButtonLabelPublish is true, MediaWiki will label the button
30 to store-to-database-and-show-to-others as "Publish page"/"Publish changes";
31 if false, the default, they will be "Save page"/"Save changes".
32 * The 'editcontentmodel' permission is now granted to all logged-in users ('user').
33 instead of just administrators ('sysop'). Documentation for this feature is
34 available at <https://www.mediawiki.org/wiki/Help:ChangeContentModel>.
35 * $wgRevisionCacheExpiry is now set to one week by default instead of being disabled.
37 === New features in 1.28 ===
38 * User::isBot() method for checking if an account is a bot role account.
39 * Added a new 'slideshow' mode for galleries.
40 * Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
41 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
42 interact with API parsing.
43 * Added a new hook, 'UploadVerifyUpload', which can be used to reject a file
44 upload. Unlike 'UploadVerifyFile' it provides information about upload comment
45 and the file description page, but does not run for uploads to stash.
46 * (T141604) Extensions can now provide a better error message when their
47 maintenance scripts are run without the extension being installed.
48 * (T8948) Numeric sorting in categories is now supported by setting $wgCategoryCollation
49 to 'uca-default-u-kn' or 'uca-<langcode>-u-kn'. If you can't use UCA collations,
50 a 'numeric' collation is also available. If migrating from another
51 collation, you will need to run the updateCollation.php maintenance script.
52 * Two new codes have been added to #time parser function: "xit" for days in current
53 month, and "xiz" for days passed in the year, both in Iranian calendar.
54 * mw.Api has a new option, useUS, to use U+001F (Unit Separator) when
55 appropriate for sending multi-valued parameters. This defaults to true when
56 the mw.Api instance seems to be for the local wiki.
58 === External library changes in 1.28 ===
60 ==== Upgraded external libraries ====
61 * Updated es5-shim from v4.1.5 to v4.5.8
63 ==== New external libraries ====
65 ==== Removed and replaced external libraries ====
67 === Bug fixes in 1.28 ===
68 * (T137264) SECURITY: XSS in unclosed internal links
69 * (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
70 * (T133147) SECURITY: Require login to preview user CSS pages
71 * (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is
73 * (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in
75 * (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
76 * (T139670) Move 'UserGetRights' call before application of
77 Session::getAllowedUserRights()
79 === Action API changes in 1.28 ===
80 * Added 'maxarticlesize' property to action=query&meta=siteinfo which contains
81 the value of $wgMaxArticleSize.
82 * Property 'modulemessages' from action=parse&prop=modules was removed
83 (deprecated since 1.26).
84 * The following response properties from action=login, deprecated in 1.27, are
85 now removed: lgtoken, cookieprefix, sessionid. Clients should handle cookies
86 to properly manage session state.
87 * Submitting the lgtoken and lgpassword parameters in the query string to
88 action=login is now deprecated and outputs a warning. They should be submitted
89 in the POST body instead.
90 * Submitting sensitive authentication request parameters to action=clientlogin,
91 action=createaccount, action=linkaccount, and action=changeauthenticationdata
92 in the query string is now deprecated and outputs a warning. They should be
93 submitted in the POST body instead.
94 * (T141960) Multi-valued parameters may now be separated using U+001F (Unit Separator)
95 instead of the pipe character. This will be useful if some of the multiple
96 values need to contain pipes, e.g. for action=options.
97 * The API will now warn if input is not NFC-normalized Unicode or if it
98 contains invalid characters.
99 * The 'normalized' list output by action=query and other modules that use
100 ApiPageSet may contain entries where the 'from' value is percent-encoded as
101 the raw value cannot be represented in a valid API response. These are
102 indicated by a 'fromencoded' boolean alongside the existing 'from' parameter.
103 * (T28680) action=paraminfo can now return info about all submodules of a
104 module without listing them all explicitly.
106 === Action API internal changes in 1.28 ===
107 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
108 interact with ApiParse and ApiExpandTemplates.
109 * (T139565) SECURITY: API: Generate head items in the context of the given title
110 * (T115333) SECURITY: Check read permission when loading page content in ApiParse
112 === Languages updated in 1.28 ===
114 MediaWiki supports over 350 languages. Many localisations are updated
115 regularly. Below only new and removed languages are listed, as well as
116 changes to languages because of Phabricator reports.
118 * (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru,
119 BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
120 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
121 Saiddzone Saimawnkham, Saosukham, and Sengwan.
122 * Czech (cs) and Slovak (sk) set as reciprocal fallbacks
124 === Other changes in 1.28 ===
125 * (T128697) Improved handling of large diffs.
126 * [BREAKING CHANGE] $wgExtendedLoginCookies has been removed. You can
127 use or update a custom session provider if needed.
128 * Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
129 * The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
130 * SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
131 * The 'UserLoginComplete' hook has a new parameter to differentiate between actual
132 login and visiting the login page while already logged in.
133 * ResourceLoader::makeLoaderURL() was removed (deprecated since 1.24).
134 * $.fn.liveAndTestAtStart was removed (deprecated since 1.24).
135 * mw.util.tooltipAccessKeyPrefix was removed (deprecated since 1.24).
136 * mw.util.tooltipAccessKeyRegexp was removed (deprecated since 1.24).
137 * Linker::link() and Linker::linkKnown() were deprecated; please instead use
138 MediaWiki\Linker\LinkRenderer. In addition, the LinkBegin and LinkEnd hooks
139 were replaced by HtmlPageLinkRendererBegin and HtmlPageLinkRendererEnd
140 respectively. See docs/hooks.txt for the specific changes needed for those hooks.
141 * Linker::formatSize() was deprecated. Use Language::formatSize() directly.
142 * Aliases for Linker methods, deprecated since 1.21, were removed from Skin:
143 * Skin::commentBlock() (use Linker::commentBlock() instead)
144 * Skin::generateRollback() (use Linker::generateRollback() instead)
145 * Skin::link() (use MediaWiki\Linker\LinkRenderer instead)
146 * Skin::linkKnown() (use MediaWiki\Linker\LinkRenderer instead)
147 * Skin::userLink() (use Linker::userLink() instead)
148 * Skin::userToolLinks() (use Linker::userToolLinks() instead)
149 * The 'ParserLimitReportFormat' hook was removed.
150 * Disabled "bug 2702" HTML tidying of parsed UI messages on wikis where Tidy is
152 * DifferenceEngine::generateDiffBody() was removed (deprecated since 1.21).
153 * UploadBase::stashFileGetKey() and UploadBase::stashSession() were deprecated.
154 Use ...->stashFile()->getFileKey() instead.
155 * "Public domain" was removed as a wiki license option from the installer, in
157 * AuthenticationRequest::$required is now changed from REQUIRED to PRIMARY_REQUIRED
158 on requests needed by primary providers even if all primaries need them.
159 Primary providers are discouraged from returning multiple REQUIRED requests.
160 * OOjs UI PHP widgets constructed with the `'infusable' => true` config option
161 will no longer be automatically infused. You should call `OO.ui.infuse()`
162 on them yourself from your JavaScript code.
166 MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for
169 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
170 support for them is somewhat less mature. There is experimental support for
171 Oracle and Microsoft SQL Server.
173 The supported versions are:
175 * MySQL 5.0.3 or later
176 * PostgreSQL 8.3 or later
177 * SQLite 3.3.7 or later
178 * Oracle 9.0.1 or later
179 * Microsoft SQL Server 2005 (9.00.1399)
183 1.28 has several database changes since 1.27, and will not work without schema
184 updates. Note that due to changes to some very large tables like the revision
185 table, the schema update may take quite long (minutes on a medium sized site,
186 many hours on a large site).
188 If upgrading from before 1.11, and you are using a wiki as a commons
189 repository, make sure that it is updated as well. Otherwise, errors may arise
190 due to database schema changes.
192 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
193 new database fields are filled with data.
195 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
196 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
199 Don't forget to always back up your database before upgrading!
201 See the file UPGRADE for more detailed upgrade instructions.
203 For notes on 1.27.x and older releases, see HISTORY.
205 == Online documentation ==
207 Documentation for both end-users and site administrators is available on
208 MediaWiki.org, and is covered under the GNU Free Documentation License (except
209 for pages that explicitly state that their contents are in the public domain):
211 https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
215 A mailing list is available for MediaWiki user support and discussion:
217 https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
219 A low-traffic announcements-only list is also available:
221 https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
223 It's highly recommended that you sign up for one of these lists if you're
224 going to run a public MediaWiki, so you can be notified of security fixes.
228 There's usually someone online in #mediawiki on irc.freenode.net.