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