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
  40 === External library changes in 1.28 ===
  41
  42 ==== Upgraded external libraries ====
  43 * Updated es5-shim from v4.1.5 to v4.5.8
  44
  45 ==== New external libraries ====
  46
  47 ==== Removed and replaced external libraries ====
  48
  49 === Bug fixes in 1.28 ===
  50
  51 === Action API changes in 1.28 ===
  52 * Added 'maxarticlesize' property to action=query&meta=siteinfo which contains
  53   the value of $wgMaxArticleSize.
  54
  55 === Action API internal changes in 1.28 ===
  56 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  57   interact with ApiParse and ApiExpandTemplates.
  58
  59 === Languages updated in 1.28 ===
  60
  61 MediaWiki supports over 350 languages. Many localisations are updated
  62 regularly. Below only new and removed languages are listed, as well as
  63 changes to languages because of Phabricator reports.
  64
  65 * (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru,
  66   BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
  67 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
  68   Saiddzone Saimawnkham, Saosukham, and Sengwan.
  69
  70 === Other changes in 1.28 ===
  71 * (T128697) Improved handling of large diffs.
  72 * [BREAKING CHANGE] $wgExtendedLoginCookies has been removed.  You can
  73   use or update a custom session provider if needed.
  74 * Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
  75 * The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
  76 * SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
  77 * The 'UserLoginComplete' hook has a new parameter to differentiate between actual
  78   login and visiting the login page while already logged in.
  79 * ResourceLoader::makeLoaderURL() was removed (deprecated since 1.24).
  80
  81 == Compatibility ==
  82
  83 MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for
  84 HHVM 3.6.5 or later.
  85
  86 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
  87 support for them is somewhat less mature. There is experimental support for
  88 Oracle and Microsoft SQL Server.
  89
  90 The supported versions are:
  91
  92 * MySQL 5.0.3 or later
  93 * PostgreSQL 8.3 or later
  94 * SQLite 3.3.7 or later
  95 * Oracle 9.0.1 or later
  96 * Microsoft SQL Server 2005 (9.00.1399)
  97
  98 == Upgrading ==
  99
 100 1.28 has several database changes since 1.27, and will not work without schema
 101 updates. Note that due to changes to some very large tables like the revision
 102 table, the schema update may take quite long (minutes on a medium sized site,
 103 many hours on a large site).
 104
 105 If upgrading from before 1.11, and you are using a wiki as a commons
 106 repository, make sure that it is updated as well. Otherwise, errors may arise
 107 due to database schema changes.
 108
 109 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 110 new database fields are filled with data.
 111
 112 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 113 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 114 with MediaWiki 1.21.
 115
 116 Don't forget to always back up your database before upgrading!
 117
 118 See the file UPGRADE for more detailed upgrade instructions.
 119
 120 For notes on 1.27.x and older releases, see HISTORY.
 121
 122 == Online documentation ==
 123
 124 Documentation for both end-users and site administrators is available on
 125 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 126 for pages that explicitly state that their contents are in the public domain):
 127
 128        https://www.mediawiki.org/wiki/Documentation
 129
 130 == Mailing list ==
 131
 132 A mailing list is available for MediaWiki user support and discussion:
 133
 134        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 135
 136 A low-traffic announcements-only list is also available:
 137
 138        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 139
 140 It's highly recommended that you sign up for one of these lists if you're
 141 going to run a public MediaWiki, so you can be notified of security fixes.
 142
 143 == IRC help ==
 144
 145 There's usually someone online in #mediawiki on irc.freenode.net.