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 * (T102645) Namespace list from meta=siteinfo&siprop=namespaces is now an array
  45   with formatversion=2.
  46 * Various other output from meta=siteinfo will now always be arrays instead of
  47   sometimes being numerically-indexed objects with formatversion=2.
  48 * When errors about users being blocked are returned, they now include
  49   information about the relevant block.
  50
  51 === Action API internal changes in 1.26 ===
  52
  53 === Languages updated in 1.26 ===
  54
  55 MediaWiki supports over 350 languages. Many localisations are updated
  56 regularly. Below only new and removed languages are listed, as well as
  57 changes to languages because of Bugzilla reports.
  58
  59
  60 === Other changes in 1.26 ===
  61 * ChangeTags::tagDescription() will return false if the interface message
  62   for the tag is disabled.
  63 * Added PageHistoryPager::doBatchLookups hook.
  64 * Added ParserCacheSaveComplete to ParserCache
  65 * supportsDirectEditing and supportsDirectApiEditing methods added to
  66   ContentHandler, to provide a way for ApiEditPage and EditPage to check
  67   if direct editing of content is allowed. These methods return false,
  68   by default for the ContentHandler base class and true for TextContentHandler
  69   and it's derivative classes (everything in core). For Content types that
  70   do not support direct editing, an alternative mechanism should be provided
  71   for editing, such as action overrides or specific api modules.
  72 * mediaWiki.confirmCloseWindow now returns an object of functions, instead of
  73   one function. The callback can't be called directly any more. The callback
  74   function is replaced with confirmCloseWindow.release().
  75 * BREAKING CHANGE: Added an optional ResouceLoaderContext parameter to
  76   ResourceLoaderModule::getDependencies(). Extension classes that override that
  77   method should be updated. If they aren't updated, PHP Strict standards
  78   warnings will appear when E_STRICT error reporting is enabled. Note: in the
  79   near future, this parameter will probably become non-optional.
  80 * Removed maintenance script deleteImageMemcached.php.
  81 * MWFunction::newObj() was removed (deprecated in 1.25).
  82   ObjectFactory::getObjectFromSpec() should be used instead.
  83 * The parser will no longer randomize the string it uses to mark the place of
  84   items that were stripped during parsing. It will use a fixed string instead.
  85   This causes the parser to re-use the regular expressions it uses to search
  86   and replace markers rather than generate novel expressions on each parse.
  87   Re-using regular expressions will improve performance on HHVM and the
  88   forthcoming PHP 7. The interfaces changes accompanying this change are:
  89   - Parser::getRandomString() and Parser::uniqPrefix() have been deprecated.
  90   - The $uniq_prefix argument for Parser::extractTagsAndParams() and the
  91     $prefix argument for StripState::_construct() are deprecated and their
  92     value is ignored.
  93 * wfSuppressWarnings() and wfRestoreWarnings() were split into a separate library,
  94   mediawiki/at-ease, and are now deprecated. Callers should use
  95   MediaWiki\suppressWarnings() and MediaWiki\restoreWarnings() directly.
  96
  97
  98 == Compatibility ==
  99
 100 MediaWiki 1.26 requires PHP 5.3.3 or later. There is experimental support for
 101 HHVM 3.3.0.
 102
 103 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 104 support for them is somewhat less mature. There is experimental support for
 105 Oracle and Microsoft SQL Server.
 106
 107 The supported versions are:
 108
 109 * MySQL 5.0.3 or later
 110 * PostgreSQL 8.3 or later
 111 * SQLite 3.3.7 or later
 112 * Oracle 9.0.1 or later
 113 * Microsoft SQL Server 2005 (9.00.1399)
 114
 115 == Upgrading ==
 116
 117 1.26 has several database changes since 1.25, and will not work without schema
 118 updates. Note that due to changes to some very large tables like the revision
 119 table, the schema update may take quite long (minutes on a medium sized site,
 120 many hours on a large site).
 121
 122 If upgrading from before 1.11, and you are using a wiki as a commons
 123 repository, make sure that it is updated as well. Otherwise, errors may arise
 124 due to database schema changes.
 125
 126 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 127 new database fields are filled with data.
 128
 129 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 130 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 131 with MediaWiki 1.21.
 132
 133 Don't forget to always back up your database before upgrading!
 134
 135 See the file UPGRADE for more detailed upgrade instructions.
 136
 137 For notes on 1.25.x and older releases, see HISTORY.
 138
 139 == Online documentation ==
 140
 141 Documentation for both end-users and site administrators is available on
 142 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 143 for pages that explicitly state that their contents are in the public domain):
 144
 145         https://www.mediawiki.org/wiki/Documentation
 146
 147 == Mailing list ==
 148
 149 A mailing list is available for MediaWiki user support and discussion:
 150
 151         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 152
 153 A low-traffic announcements-only list is also available:
 154
 155         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 156
 157 It's highly recommended that you sign up for one of these lists if you're
 158 going to run a public MediaWiki, so you can be notified of security fixes.
 159
 160 == IRC help ==
 161
 162 There's usually someone online in #mediawiki on irc.freenode.net.
 163