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