RELEASE-NOTES-1.28

   1 == MediaWiki 1.28 ==
   2
   3 THIS IS NOT A RELEASE YET
   4
   5 MediaWiki 1.28 is an alpha-quality branch and is not recommended for use in
   6 production.
   7
   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 $wgEditButtonPublishNotSave is true, MediaWiki will label the button to
  30   store-to-database-and-show-to-others as "Publish page"/"Publish changes"; if
  31   false, the default, they will be "Save page"/"Save changes".
  32
  33 === New features in 1.28 ===
  34 * User::isBot() method for checking if an account is a bot role account.
  35 * Added a new 'slideshow' mode for galleries.
  36 * Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
  37 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  38   interact with API parsing.
  39 * Added a new hook, 'UploadVerifyUpload', which can be used to reject a file
  40   upload. Unlike 'UploadVerifyFile' it provides information about upload comment
  41   and the file description page, but does not run for uploads to stash.
  42 * (T141604) Extensions can now provide a better error message when their
  43   maintenance scripts are run without the extension being installed.
  44 * (T8948) Numeric sorting in categories is now supported by setting $wgCategoryCollation
  45   to 'uca-default-u-kn' or 'uca-<langcode>-u-kn'. If you can't use UCA collations,
  46   a 'numeric' collation is also available. If migrating from another
  47   collation, you will need to run the updateCollation.php maintenance script.
  48
  49 === External library changes in 1.28 ===
  50
  51 ==== Upgraded external libraries ====
  52 * Updated es5-shim from v4.1.5 to v4.5.8
  53
  54 ==== New external libraries ====
  55
  56 ==== Removed and replaced external libraries ====
  57
  58 === Bug fixes in 1.28 ===
  59 * (T137264) SECURITY: XSS in unclosed internal links
  60 * (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
  61 * (T133147) SECURITY: Require login to preview user CSS pages
  62 * (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is
  63   the top file
  64 * (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in
  65   permissions
  66 * (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
  67 * (T139670) Move 'UserGetRights' call before application of
  68   Session::getAllowedUserRights()
  69
  70 === Action API changes in 1.28 ===
  71 * Added 'maxarticlesize' property to action=query&meta=siteinfo which contains
  72   the value of $wgMaxArticleSize.
  73 * Property 'modulemessages' from action=parse&prop=modules was removed
  74   (deprecated since 1.26).
  75 * The following response properties from action=login, deprecated in 1.27, are
  76   now removed: lgtoken, cookieprefix, sessionid. Clients should handle cookies
  77   to properly manage session state.
  78 * Submitting the lgtoken and lgpassword parameters in the query string to
  79   action=login is now deprecated and outputs a warning. They should be submitted
  80   in the POST body instead.
  81 * Submitting sensitive authentication request parameters to action=clientlogin,
  82   action=createaccount, action=linkaccount, and action=changeauthenticationdata
  83   in the query string is now deprecated and outputs a warning. They should be
  84   submitted in the POST body instead.
  85
  86 === Action API internal changes in 1.28 ===
  87 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  88   interact with ApiParse and ApiExpandTemplates.
  89 * (T139565) SECURITY: API: Generate head items in the context of the given title
  90 * (T115333) SECURITY: Check read permission when loading page content in ApiParse
  91
  92 === Languages updated in 1.28 ===
  93
  94 MediaWiki supports over 350 languages. Many localisations are updated
  95 regularly. Below only new and removed languages are listed, as well as
  96 changes to languages because of Phabricator reports.
  97
  98 * (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru,
  99   BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
 100 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
 101   Saiddzone Saimawnkham, Saosukham, and Sengwan.
 102 * Czech (cs) and Slovak (sk) set as reciprocal fallbacks
 103
 104 === Other changes in 1.28 ===
 105 * (T128697) Improved handling of large diffs.
 106 * [BREAKING CHANGE] $wgExtendedLoginCookies has been removed. You can
 107   use or update a custom session provider if needed.
 108 * Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
 109 * The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
 110 * SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
 111 * The 'UserLoginComplete' hook has a new parameter to differentiate between actual
 112   login and visiting the login page while already logged in.
 113 * ResourceLoader::makeLoaderURL() was removed (deprecated since 1.24).
 114 * $.fn.liveAndTestAtStart was removed (deprecated since 1.24).
 115 * Linker::link() and Linker::linkKnown() were deprecated; please instead use
 116   MediaWiki\Linker\LinkRenderer. In addition, the LinkBegin and LinkEnd hooks
 117   were replaced by HtmlPageLinkRendererBegin and HtmlPageLinkRendererEnd
 118   respectively. See docs/hooks.txt for the specific changes needed for those hooks.
 119 * Aliases for Linker methods, deprecated since 1.21, were removed from Skin:
 120   * Skin::commentBlock() (use Linker::commentBlock() instead)
 121   * Skin::generateRollback() (use Linker::generateRollback() instead)
 122   * Skin::link() (use MediaWiki\Linker\LinkRenderer instead)
 123   * Skin::linkKnown() (use MediaWiki\Linker\LinkRenderer instead)
 124   * Skin::userLink() (use Linker::userLink() instead)
 125   * Skin::userToolLinks() (use Linker::userToolLinks() instead)
 126 * The 'ParserLimitReportFormat' hook was removed.
 127 * Disabled "bug 2702" HTML tidying of parsed UI messages on wikis where Tidy is
 128   disabled.
 129 * DifferenceEngine::generateDiffBody() was removed (deprecated since 1.21).
 130 * UploadBase::stashFileGetKey() and UploadBase::stashSession() were deprecated.
 131   Use ...->stashFile()->getFileKey() instead.
 132 * "Public domain" was removed as a wiki license option from the installer, in
 133   favour of CC-0.
 134 * AuthenticationRequest::$required is now changed from REQUIRED to PRIMARY_REQUIRED
 135   on requests needed by primary providers even if all primaries need them.
 136   Primary providers are discouraged from returning multiple REQUIRED requests.
 137 * OOjs UI PHP widgets constructed with the `'infusable' => true` config option
 138   will no longer be automatically infused. You should call `OO.ui.infuse()`
 139   on them yourself from your JavaScript code.
 140
 141 == Compatibility ==
 142
 143 MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for
 144 HHVM 3.6.5 or later.
 145
 146 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 147 support for them is somewhat less mature. There is experimental support for
 148 Oracle and Microsoft SQL Server.
 149
 150 The supported versions are:
 151
 152 * MySQL 5.0.3 or later
 153 * PostgreSQL 8.3 or later
 154 * SQLite 3.3.7 or later
 155 * Oracle 9.0.1 or later
 156 * Microsoft SQL Server 2005 (9.00.1399)
 157
 158 == Upgrading ==
 159
 160 1.28 has several database changes since 1.27, and will not work without schema
 161 updates. Note that due to changes to some very large tables like the revision
 162 table, the schema update may take quite long (minutes on a medium sized site,
 163 many hours on a large site).
 164
 165 If upgrading from before 1.11, and you are using a wiki as a commons
 166 repository, make sure that it is updated as well. Otherwise, errors may arise
 167 due to database schema changes.
 168
 169 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 170 new database fields are filled with data.
 171
 172 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 173 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 174 with MediaWiki 1.21.
 175
 176 Don't forget to always back up your database before upgrading!
 177
 178 See the file UPGRADE for more detailed upgrade instructions.
 179
 180 For notes on 1.27.x and older releases, see HISTORY.
 181
 182 == Online documentation ==
 183
 184 Documentation for both end-users and site administrators is available on
 185 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 186 for pages that explicitly state that their contents are in the public domain):
 187
 188        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 189
 190 == Mailing list ==
 191
 192 A mailing list is available for MediaWiki user support and discussion:
 193
 194        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 195
 196 A low-traffic announcements-only list is also available:
 197
 198        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 199
 200 It's highly recommended that you sign up for one of these lists if you're
 201 going to run a public MediaWiki, so you can be notified of security fixes.
 202
 203 == IRC help ==
 204
 205 There's usually someone online in #mediawiki on irc.freenode.net.