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
  26 === New features in 1.28 ===
  27 * User::isBot() method for checking if an account is a bot role account.
  28 * Added a new 'slideshow' mode for galleries.
  29 * Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
  30 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  31   interact with API parsing.
  32 * Added a new hook, 'UploadVerifyUpload', which can be used to reject a file
  33   upload. Unlike 'UploadVerifyFile' it provides information about upload comment
  34   and the file description page, but does not run for uploads to stash.
  35
  36 === External library changes in 1.28 ===
  37
  38 ==== Upgraded external libraries ====
  39 * Updated es5-shim from v4.1.5 to v4.5.8
  40
  41 ==== New external libraries ====
  42
  43 ==== Removed and replaced external libraries ====
  44
  45 === Bug fixes in 1.28 ===
  46
  47 === Action API changes in 1.28 ===
  48
  49 === Action API internal changes in 1.28 ===
  50 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  51   interact with ApiParse and ApiExpandTemplates.
  52
  53 === Languages updated in 1.28 ===
  54
  55 MediaWiki supports over 350 languages. Many localisations are updated
  56 regularly. Below only new and removed languages are listed, as well as
  57 changes to languages because of Phabricator reports.
  58
  59 * (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru,
  60   BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
  61 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
  62   Saiddzone Saimawnkham, Saosukham, and Sengwan.
  63
  64 === Other changes in 1.28 ===
  65 * (T128697) Improved handling of large diffs.
  66 * [BREAKING CHANGE] $wgExtendedLoginCookies has been removed.  You can
  67   use or update a custom session provider if needed.
  68 * Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
  69 * The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
  70 * SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
  71
  72 == Compatibility ==
  73
  74 MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for
  75 HHVM 3.6.5 or later.
  76
  77 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
  78 support for them is somewhat less mature. There is experimental support for
  79 Oracle and Microsoft SQL Server.
  80
  81 The supported versions are:
  82
  83 * MySQL 5.0.3 or later
  84 * PostgreSQL 8.3 or later
  85 * SQLite 3.3.7 or later
  86 * Oracle 9.0.1 or later
  87 * Microsoft SQL Server 2005 (9.00.1399)
  88
  89 == Upgrading ==
  90
  91 1.28 has several database changes since 1.27, and will not work without schema
  92 updates. Note that due to changes to some very large tables like the revision
  93 table, the schema update may take quite long (minutes on a medium sized site,
  94 many hours on a large site).
  95
  96 If upgrading from before 1.11, and you are using a wiki as a commons
  97 repository, make sure that it is updated as well. Otherwise, errors may arise
  98 due to database schema changes.
  99
 100 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 101 new database fields are filled with data.
 102
 103 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 104 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 105 with MediaWiki 1.21.
 106
 107 Don't forget to always back up your database before upgrading!
 108
 109 See the file UPGRADE for more detailed upgrade instructions.
 110
 111 For notes on 1.27.x and older releases, see HISTORY.
 112
 113 == Online documentation ==
 114
 115 Documentation for both end-users and site administrators is available on
 116 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 117 for pages that explicitly state that their contents are in the public domain):
 118
 119        https://www.mediawiki.org/wiki/Documentation
 120
 121 == Mailing list ==
 122
 123 A mailing list is available for MediaWiki user support and discussion:
 124
 125        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 126
 127 A low-traffic announcements-only list is also available:
 128
 129        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 130
 131 It's highly recommended that you sign up for one of these lists if you're
 132 going to run a public MediaWiki, so you can be notified of security fixes.
 133
 134 == IRC help ==
 135
 136 There's usually someone online in #mediawiki on irc.freenode.net.