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 * Upgrade jQuery Client from v1.0.0 to v2.0.0.
  27 * Added mediawiki/at-ease 1.0.0
  28
  29 === Bug fixes in 1.26 ===
  30 * (bug 51283) load.php sometimes sends 304 response without full headers
  31 * (T65198) Talk page tabs now have a "rel=discussion" attribute
  32
  33 === Action API changes in 1.26 ===
  34 * API action=query&list=tags: The displayname can now be boolean false if the
  35   tag is meant to be hidden from user interfaces.
  36 * action=import no longer allows both the namespace= and rootpage= parameters
  37   to be set. If they are both set, the value of rootpage= will be ignored.
  38 * prop=revision output in enum mode is now sorted by timestamp rather than
  39   revision ID. This usually won't make any difference.
  40
  41 === Action API internal changes in 1.26 ===
  42
  43 === Languages updated in 1.26 ===
  44
  45 MediaWiki supports over 350 languages. Many localisations are updated
  46 regularly. Below only new and removed languages are listed, as well as
  47 changes to languages because of Bugzilla reports.
  48
  49
  50 === Other changes in 1.26 ===
  51 * ChangeTags::tagDescription() will return false if the interface message
  52   for the tag is disabled.
  53 * Added PageHistoryPager::doBatchLookups hook.
  54 * Added ParserCacheSaveComplete to ParserCache
  55 * supportsDirectEditing and supportsDirectApiEditing methods added to
  56   ContentHandler, to provide a way for ApiEditPage and EditPage to check
  57   if direct editing of content is allowed. These methods return false,
  58   by default for the ContentHandler base class and true for TextContentHandler
  59   and it's derivative classes (everything in core). For Content types that
  60   do not support direct editing, an alternative mechanism should be provided
  61   for editing, such as action overrides or specific api modules.
  62 * mediaWiki.confirmCloseWindow now returns an object of functions, instead of
  63   one function. The callback can't be called directly any more. The callback
  64   function is replaced with confirmCloseWindow.release().
  65 * BREAKING CHANGE: Added an optional ResouceLoaderContext parameter to
  66   ResourceLoaderModule::getDependencies(). Extension classes that override that
  67   method should be updated. If they aren't updated, PHP Strict standards
  68   warnings will appear when E_STRICT error reporting is enabled. Note: in the
  69   near future, this parameter will probably become non-optional.
  70 * Removed maintenance script deleteImageMemcached.php.
  71 * MWFunction::newObj() was removed (deprecated in 1.25).
  72   ObjectFactory::getObjectFromSpec() should be used instead.
  73 * The parser will no longer randomize the string it uses to mark the place of
  74   items that were stripped during parsing. It will use a fixed string instead.
  75   This causes the parser to re-use the regular expressions it uses to search
  76   and replace markers rather than generate novel expressions on each parse.
  77   Re-using regular expressions will improve performance on HHVM and the
  78   forthcoming PHP 7. The interfaces changes accompanying this change are:
  79   - Parser::getRandomString() and Parser::uniqPrefix() have been deprecated.
  80   - The $uniq_prefix argument for Parser::extractTagsAndParams() and the
  81     $prefix argument for StripState::_construct() are deprecated and their
  82     value is ignored.
  83 * wfSuppressWarnings() and wfRestoreWarnings() were split into a separate library,
  84   mediawiki/at-ease, and are now deprecated. Callers should use
  85   MediaWiki\suppressWarnings() and MediaWiki\restoreWarnings() directly.
  86
  87
  88 == Compatibility ==
  89
  90 MediaWiki 1.26 requires PHP 5.3.3 or later. There is experimental support for
  91 HHVM 3.3.0.
  92
  93 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
  94 support for them is somewhat less mature. There is experimental support for
  95 Oracle and Microsoft SQL Server.
  96
  97 The supported versions are:
  98
  99 * MySQL 5.0.3 or later
 100 * PostgreSQL 8.3 or later
 101 * SQLite 3.3.7 or later
 102 * Oracle 9.0.1 or later
 103 * Microsoft SQL Server 2005 (9.00.1399)
 104
 105 == Upgrading ==
 106
 107 1.26 has several database changes since 1.25, and will not work without schema
 108 updates. Note that due to changes to some very large tables like the revision
 109 table, the schema update may take quite long (minutes on a medium sized site,
 110 many hours on a large site).
 111
 112 If upgrading from before 1.11, and you are using a wiki as a commons
 113 repository, make sure that it is updated as well. Otherwise, errors may arise
 114 due to database schema changes.
 115
 116 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 117 new database fields are filled with data.
 118
 119 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 120 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 121 with MediaWiki 1.21.
 122
 123 Don't forget to always back up your database before upgrading!
 124
 125 See the file UPGRADE for more detailed upgrade instructions.
 126
 127 For notes on 1.25.x and older releases, see HISTORY.
 128
 129 == Online documentation ==
 130
 131 Documentation for both end-users and site administrators is available on
 132 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 133 for pages that explicitly state that their contents are in the public domain):
 134
 135         https://www.mediawiki.org/wiki/Documentation
 136
 137 == Mailing list ==
 138
 139 A mailing list is available for MediaWiki user support and discussion:
 140
 141         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 142
 143 A low-traffic announcements-only list is also available:
 144
 145         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 146
 147 It's highly recommended that you sign up for one of these lists if you're
 148 going to run a public MediaWiki, so you can be notified of security fixes.
 149
 150 == IRC help ==
 151
 152 There's usually someone online in #mediawiki on irc.freenode.net.