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
  13 === New features in 1.26 ===
  14 * Change tags can now be hidden in the interface by disabling the associated
  15   "tag-<id>" interface message.
  16 * ':' (colon) is now invalid in usernames for new accounts. Existing accounts
  17   are not affected.
  18 * Added a new hook, 'LogException', to log exceptions in nonstandard ways.
  19
  20 ==== External libraries ====
  21
  22 === Bug fixes in 1.26 ===
  23 * (bug 51283) load.php sometimes sends 304 response without full headers
  24
  25 === Action API changes in 1.26 ===
  26 * API action=query&list=tags: The displayname can now be boolean false if the
  27   tag is meant to be hidden from user interfaces.
  28 * action=import no longer allows both the namespace= and rootpage= parameters
  29   to be set. If they are both set, the value of rootpage= will be ignored.
  30 * prop=revision output in enum mode is now sorted by timestamp rather than
  31   revision ID. This usually won't make any difference.
  32
  33 === Action API internal changes in 1.26 ===
  34
  35 === Languages updated in 1.26 ===
  36
  37 MediaWiki supports over 350 languages. Many localisations are updated
  38 regularly. Below only new and removed languages are listed, as well as
  39 changes to languages because of Bugzilla reports.
  40
  41
  42 === Other changes in 1.26 ===
  43 * ChangeTags::tagDescription() will return false if the interface message
  44   for the tag is disabled.
  45 * Added PageHistoryPager::doBatchLookups hook.
  46 * Added ParserCacheSaveComplete to ParserCache
  47 * supportsDirectEditing and supportsDirectApiEditing methods added to
  48   ContentHandler, to provide a way for ApiEditPage and EditPage to check
  49   if direct editing of content is allowed. These methods return false,
  50   by default for the ContentHandler base class and true for TextContentHandler
  51   and it's derivative classes (everything in core). For Content types that
  52   do not support direct editing, an alternative mechanism should be provided
  53   for editing, such as action overrides or specific api modules.
  54 * mediaWiki.confirmCloseWindow now returns an object of functions, instead of
  55   one function. The callback can't be called directly any more. The callback
  56   function is replaced with confirmCloseWindow.release().
  57 * Removed maintenance script deleteImageMemcached.php.
  58 * MWFunction::newObj() was removed (deprecated in 1.25).
  59   ObjectFactory::getObjectFromSpec() should be used instead.
  60 * The parser will no longer randomize the string it uses to mark the place of
  61   items that were stripped during parsing. It will use a fixed string instead.
  62   This causes the parser to re-use the regular expressions it uses to search
  63   and replace markers rather than generate novel expressions on each parse.
  64   Re-using regular expressions will improve performance on HHVM and the
  65   forthcoming PHP 7. The interfaces changes accompanying this change are:
  66   - Parser::getRandomString() and Parser::uniqPrefix() have been deprecated.
  67   - The $uniq_prefix argument for Parser::extractTagsAndParams() and the
  68     $prefix argument for StripState::_construct() are deprecated and their
  69     value is ignored.
  70
  71
  72 == Compatibility ==
  73
  74 MediaWiki 1.26 requires PHP 5.3.3 or later. There is experimental support for
  75 HHVM 3.3.0.
  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 1.26 has several database changes since 1.25, 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 1.25.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.