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