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