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 * Revive the 'SpecialSearchResultsAppend' hook which occurs after the list of
  22   search results are rendered. The initial use case is to append a "give us
  23   feedback" link beneath the search results.
  24
  25
  26 ==== External libraries ====
  27 * Update es5-shim from v4.0.0 to v4.1.5.
  28 * Update json2 from revision 2014-02-04 to 2015-05-03.
  29 * Update Sinon.JS from 1.10.3 to 1.15.0.
  30 * Upgrade jQuery Client from v1.0.0 to v2.0.0.
  31 * Added mediawiki/at-ease 1.0.0
  32
  33 === Bug fixes in 1.26 ===
  34 * (bug 51283) load.php sometimes sends 304 response without full headers
  35 * (T65198) Talk page tabs now have a "rel=discussion" attribute
  36
  37 === Action API changes in 1.26 ===
  38 * API action=query&list=tags: The displayname can now be boolean false if the
  39   tag is meant to be hidden from user interfaces.
  40 * action=import no longer allows both the namespace= and rootpage= parameters
  41   to be set. If they are both set, the value of rootpage= will be ignored.
  42 * prop=revision output in enum mode is now sorted by timestamp rather than
  43   revision ID. This usually won't make any difference.
  44
  45 === Action API internal changes in 1.26 ===
  46
  47 === Languages updated in 1.26 ===
  48
  49 MediaWiki supports over 350 languages. Many localisations are updated
  50 regularly. Below only new and removed languages are listed, as well as
  51 changes to languages because of Bugzilla reports.
  52
  53
  54 === Other changes in 1.26 ===
  55 * ChangeTags::tagDescription() will return false if the interface message
  56   for the tag is disabled.
  57 * Added PageHistoryPager::doBatchLookups hook.
  58 * Added ParserCacheSaveComplete to ParserCache
  59 * supportsDirectEditing and supportsDirectApiEditing methods added to
  60   ContentHandler, to provide a way for ApiEditPage and EditPage to check
  61   if direct editing of content is allowed. These methods return false,
  62   by default for the ContentHandler base class and true for TextContentHandler
  63   and it's derivative classes (everything in core). For Content types that
  64   do not support direct editing, an alternative mechanism should be provided
  65   for editing, such as action overrides or specific api modules.
  66 * mediaWiki.confirmCloseWindow now returns an object of functions, instead of
  67   one function. The callback can't be called directly any more. The callback
  68   function is replaced with confirmCloseWindow.release().
  69 * BREAKING CHANGE: Added an optional ResouceLoaderContext parameter to
  70   ResourceLoaderModule::getDependencies(). Extension classes that override that
  71   method should be updated. If they aren't updated, PHP Strict standards
  72   warnings will appear when E_STRICT error reporting is enabled. Note: in the
  73   near future, this parameter will probably become non-optional.
  74 * Removed maintenance script deleteImageMemcached.php.
  75 * MWFunction::newObj() was removed (deprecated in 1.25).
  76   ObjectFactory::getObjectFromSpec() should be used instead.
  77 * The parser will no longer randomize the string it uses to mark the place of
  78   items that were stripped during parsing. It will use a fixed string instead.
  79   This causes the parser to re-use the regular expressions it uses to search
  80   and replace markers rather than generate novel expressions on each parse.
  81   Re-using regular expressions will improve performance on HHVM and the
  82   forthcoming PHP 7. The interfaces changes accompanying this change are:
  83   - Parser::getRandomString() and Parser::uniqPrefix() have been deprecated.
  84   - The $uniq_prefix argument for Parser::extractTagsAndParams() and the
  85     $prefix argument for StripState::_construct() are deprecated and their
  86     value is ignored.
  87 * wfSuppressWarnings() and wfRestoreWarnings() were split into a separate library,
  88   mediawiki/at-ease, and are now deprecated. Callers should use
  89   MediaWiki\suppressWarnings() and MediaWiki\restoreWarnings() directly.
  90
  91
  92 == Compatibility ==
  93
  94 MediaWiki 1.26 requires PHP 5.3.3 or later. There is experimental support for
  95 HHVM 3.3.0.
  96
  97 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
  98 support for them is somewhat less mature. There is experimental support for
  99 Oracle and Microsoft SQL Server.
 100
 101 The supported versions are:
 102
 103 * MySQL 5.0.3 or later
 104 * PostgreSQL 8.3 or later
 105 * SQLite 3.3.7 or later
 106 * Oracle 9.0.1 or later
 107 * Microsoft SQL Server 2005 (9.00.1399)
 108
 109 == Upgrading ==
 110
 111 1.26 has several database changes since 1.25, and will not work without schema
 112 updates. Note that due to changes to some very large tables like the revision
 113 table, the schema update may take quite long (minutes on a medium sized site,
 114 many hours on a large site).
 115
 116 If upgrading from before 1.11, and you are using a wiki as a commons
 117 repository, make sure that it is updated as well. Otherwise, errors may arise
 118 due to database schema changes.
 119
 120 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 121 new database fields are filled with data.
 122
 123 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 124 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 125 with MediaWiki 1.21.
 126
 127 Don't forget to always back up your database before upgrading!
 128
 129 See the file UPGRADE for more detailed upgrade instructions.
 130
 131 For notes on 1.25.x and older releases, see HISTORY.
 132
 133 == Online documentation ==
 134
 135 Documentation for both end-users and site administrators is available on
 136 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 137 for pages that explicitly state that their contents are in the public domain):
 138
 139         https://www.mediawiki.org/wiki/Documentation
 140
 141 == Mailing list ==
 142
 143 A mailing list is available for MediaWiki user support and discussion:
 144
 145         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 146
 147 A low-traffic announcements-only list is also available:
 148
 149         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 150
 151 It's highly recommended that you sign up for one of these lists if you're
 152 going to run a public MediaWiki, so you can be notified of security fixes.
 153
 154 == IRC help ==
 155
 156 There's usually someone online in #mediawiki on irc.freenode.net.
 157