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
  30 === New features in 1.28 ===
  31 * User::isBot() method for checking if an account is a bot role account.
  32 * Added a new 'slideshow' mode for galleries.
  33 * Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
  34 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  35   interact with API parsing.
  36 * Added a new hook, 'UploadVerifyUpload', which can be used to reject a file
  37   upload. Unlike 'UploadVerifyFile' it provides information about upload comment
  38   and the file description page, but does not run for uploads to stash.
  39 * (T141604) Extensions can now provide a better error message when their
  40   maintenance scripts are run without the extension being installed.
  41
  42 === External library changes in 1.28 ===
  43
  44 ==== Upgraded external libraries ====
  45 * Updated es5-shim from v4.1.5 to v4.5.8
  46
  47 ==== New external libraries ====
  48
  49 ==== Removed and replaced external libraries ====
  50
  51 === Bug fixes in 1.28 ===
  52
  53 === Action API changes in 1.28 ===
  54 * Added 'maxarticlesize' property to action=query&meta=siteinfo which contains
  55   the value of $wgMaxArticleSize.
  56 * Property 'modulemessages' from action=parse&prop=modules was removed
  57   (deprecated since 1.26).
  58 * The following response properties from action=login, deprecated in 1.27, are
  59   now removed: lgtoken, cookieprefix, sessionid. Clients should handle cookies
  60   to properly manage session state.
  61
  62 === Action API internal changes in 1.28 ===
  63 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  64   interact with ApiParse and ApiExpandTemplates.
  65
  66 === Languages updated in 1.28 ===
  67
  68 MediaWiki supports over 350 languages. Many localisations are updated
  69 regularly. Below only new and removed languages are listed, as well as
  70 changes to languages because of Phabricator reports.
  71
  72 * (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru,
  73   BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
  74 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
  75   Saiddzone Saimawnkham, Saosukham, and Sengwan.
  76
  77 === Other changes in 1.28 ===
  78 * (T128697) Improved handling of large diffs.
  79 * [BREAKING CHANGE] $wgExtendedLoginCookies has been removed.  You can
  80   use or update a custom session provider if needed.
  81 * Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
  82 * The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
  83 * SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
  84 * The 'UserLoginComplete' hook has a new parameter to differentiate between actual
  85   login and visiting the login page while already logged in.
  86 * ResourceLoader::makeLoaderURL() was removed (deprecated since 1.24).
  87 * $.fn.liveAndTestAtStart was removed (deprecated since 1.24).
  88 * Linker::link() and Linker::linkKnown() were deprecated; please instead use
  89   MediaWiki\Linker\LinkRenderer. In addition, the LinkBegin and LinkEnd hooks
  90   were replaced by HtmlPageLinkRendererBegin and HtmlPageLinkRendererEnd
  91   respectively. See docs/hooks.txt for the specific changes needed for those hooks.
  92 * The 'ParserLimitReportFormat' hook was removed.
  93 * Disabled "bug 2702" HTML tidying of parsed UI messages on wikis where Tidy is
  94   disabled.
  95 * DifferenceEngine::generateDiffBody() was removed (deprecated since 1.21).
  96
  97 == Compatibility ==
  98
  99 MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for
 100 HHVM 3.6.5 or later.
 101
 102 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 103 support for them is somewhat less mature. There is experimental support for
 104 Oracle and Microsoft SQL Server.
 105
 106 The supported versions are:
 107
 108 * MySQL 5.0.3 or later
 109 * PostgreSQL 8.3 or later
 110 * SQLite 3.3.7 or later
 111 * Oracle 9.0.1 or later
 112 * Microsoft SQL Server 2005 (9.00.1399)
 113
 114 == Upgrading ==
 115
 116 1.28 has several database changes since 1.27, and will not work without schema
 117 updates. Note that due to changes to some very large tables like the revision
 118 table, the schema update may take quite long (minutes on a medium sized site,
 119 many hours on a large site).
 120
 121 If upgrading from before 1.11, and you are using a wiki as a commons
 122 repository, make sure that it is updated as well. Otherwise, errors may arise
 123 due to database schema changes.
 124
 125 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 126 new database fields are filled with data.
 127
 128 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 129 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 130 with MediaWiki 1.21.
 131
 132 Don't forget to always back up your database before upgrading!
 133
 134 See the file UPGRADE for more detailed upgrade instructions.
 135
 136 For notes on 1.27.x and older releases, see HISTORY.
 137
 138 == Online documentation ==
 139
 140 Documentation for both end-users and site administrators is available on
 141 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 142 for pages that explicitly state that their contents are in the public domain):
 143
 144        https://www.mediawiki.org/wiki/Documentation
 145
 146 == Mailing list ==
 147
 148 A mailing list is available for MediaWiki user support and discussion:
 149
 150        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 151
 152 A low-traffic announcements-only list is also available:
 153
 154        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 155
 156 It's highly recommended that you sign up for one of these lists if you're
 157 going to run a public MediaWiki, so you can be notified of security fixes.
 158
 159 == IRC help ==
 160
 161 There's usually someone online in #mediawiki on irc.freenode.net.