RELEASE-NOTES-1.26

   1 Security reminder: If you have PHP's register_globals option set, you must
   2 turn it off. MediaWiki will not work with it enabled.
   3
   4 == MediaWiki 1.26 ==
   5
   6 THIS IS NOT A RELEASE YET
   7
   8 MediaWiki 1.26 is an alpha-quality branch and is not recommended for use in
   9 production.
  10
  11 === Configuration changes in 1.26 ===
  12 * $wgEnableParserCache was deprecated, set $wgParserCacheType to CACHE_NONE
  13   instead if you want to disable the parser cache.
  14
  15 === New features in 1.26 ===
  16 * Change tags can now be hidden in the interface by disabling the associated
  17   "tag-<id>" interface message.
  18 * ':' (colon) is now invalid in usernames for new accounts. Existing accounts
  19   are not affected.
  20 * Added a new hook, 'LogException', to log exceptions in nonstandard ways.
  21
  22 ==== External libraries ====
  23 * Update es5-shim from v4.0.0 to v4.1.5.
  24 * Update json2 from revision 2014-02-04 to 2015-05-03.
  25 * Update Sinon.JS from 1.10.3 to 1.15.0.
  26
  27 === Bug fixes in 1.26 ===
  28 * (bug 51283) load.php sometimes sends 304 response without full headers
  29
  30 === Action API changes in 1.26 ===
  31 * API action=query&list=tags: The displayname can now be boolean false if the
  32   tag is meant to be hidden from user interfaces.
  33 * action=import no longer allows both the namespace= and rootpage= parameters
  34   to be set. If they are both set, the value of rootpage= will be ignored.
  35 * prop=revision output in enum mode is now sorted by timestamp rather than
  36   revision ID. This usually won't make any difference.
  37
  38 === Action API internal changes in 1.26 ===
  39
  40 === Languages updated in 1.26 ===
  41
  42 MediaWiki supports over 350 languages. Many localisations are updated
  43 regularly. Below only new and removed languages are listed, as well as
  44 changes to languages because of Bugzilla reports.
  45
  46
  47 === Other changes in 1.26 ===
  48 * ChangeTags::tagDescription() will return false if the interface message
  49   for the tag is disabled.
  50 * Added PageHistoryPager::doBatchLookups hook.
  51 * Added ParserCacheSaveComplete to ParserCache
  52 * supportsDirectEditing and supportsDirectApiEditing methods added to
  53   ContentHandler, to provide a way for ApiEditPage and EditPage to check
  54   if direct editing of content is allowed. These methods return false,
  55   by default for the ContentHandler base class and true for TextContentHandler
  56   and it's derivative classes (everything in core). For Content types that
  57   do not support direct editing, an alternative mechanism should be provided
  58   for editing, such as action overrides or specific api modules.
  59 * mediaWiki.confirmCloseWindow now returns an object of functions, instead of
  60   one function. The callback can't be called directly any more. The callback
  61   function is replaced with confirmCloseWindow.release().
  62 * BREAKING CHANGE: Added an optional ResouceLoaderContext parameter to
  63   ResourceLoaderModule::getDependencies(). Extension classes that override that
  64   method should be updated. If they aren't updated, PHP Strict standards
  65   warnings will appear when E_STRICT error reporting is enabled. Note: in the
  66   near future, this parameter will probably become non-optional.
  67 * Removed maintenance script deleteImageMemcached.php.
  68 * MWFunction::newObj() was removed (deprecated in 1.25).
  69   ObjectFactory::getObjectFromSpec() should be used instead.
  70 * The parser will no longer randomize the string it uses to mark the place of
  71   items that were stripped during parsing. It will use a fixed string instead.
  72   This causes the parser to re-use the regular expressions it uses to search
  73   and replace markers rather than generate novel expressions on each parse.
  74   Re-using regular expressions will improve performance on HHVM and the
  75   forthcoming PHP 7. The interfaces changes accompanying this change are:
  76   - Parser::getRandomString() and Parser::uniqPrefix() have been deprecated.
  77   - The $uniq_prefix argument for Parser::extractTagsAndParams() and the
  78     $prefix argument for StripState::_construct() are deprecated and their
  79     value is ignored.
  80
  81
  82 == Compatibility ==
  83
  84 MediaWiki 1.26 requires PHP 5.3.3 or later. There is experimental support for
  85 HHVM 3.3.0.
  86
  87 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
  88 support for them is somewhat less mature. There is experimental support for
  89 Oracle and Microsoft SQL Server.
  90
  91 The supported versions are:
  92
  93 * MySQL 5.0.3 or later
  94 * PostgreSQL 8.3 or later
  95 * SQLite 3.3.7 or later
  96 * Oracle 9.0.1 or later
  97 * Microsoft SQL Server 2005 (9.00.1399)
  98
  99 == Upgrading ==
 100
 101 1.26 has several database changes since 1.25, and will not work without schema
 102 updates. Note that due to changes to some very large tables like the revision
 103 table, the schema update may take quite long (minutes on a medium sized site,
 104 many hours on a large site).
 105
 106 If upgrading from before 1.11, and you are using a wiki as a commons
 107 repository, make sure that it is updated as well. Otherwise, errors may arise
 108 due to database schema changes.
 109
 110 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 111 new database fields are filled with data.
 112
 113 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 114 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 115 with MediaWiki 1.21.
 116
 117 Don't forget to always back up your database before upgrading!
 118
 119 See the file UPGRADE for more detailed upgrade instructions.
 120
 121 For notes on 1.25.x and older releases, see HISTORY.
 122
 123 == Online documentation ==
 124
 125 Documentation for both end-users and site administrators is available on
 126 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 127 for pages that explicitly state that their contents are in the public domain):
 128
 129         https://www.mediawiki.org/wiki/Documentation
 130
 131 == Mailing list ==
 132
 133 A mailing list is available for MediaWiki user support and discussion:
 134
 135         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 136
 137 A low-traffic announcements-only list is also available:
 138
 139         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 140
 141 It's highly recommended that you sign up for one of these lists if you're
 142 going to run a public MediaWiki, so you can be notified of security fixes.
 143
 144 == IRC help ==
 145
 146 There's usually someone online in #mediawiki on irc.freenode.net.