Security reminder: If you have PHP's register_globals option set, you must turn it off. MediaWiki will not work with it enabled. == MediaWiki 1.26 == THIS IS NOT A RELEASE YET MediaWiki 1.26 is an alpha-quality branch and is not recommended for use in production. === Configuration changes in 1.26 === * $wgEnableParserCache was deprecated, set $wgParserCacheType to CACHE_NONE instead if you want to disable the parser cache. === New features in 1.26 === * Change tags can now be hidden in the interface by disabling the associated "tag-" interface message. * ':' (colon) is now invalid in usernames for new accounts. Existing accounts are not affected. * Added a new hook, 'LogException', to log exceptions in nonstandard ways. ==== External libraries ==== * Update es5-shim from v4.0.0 to v4.1.5. * Update json2 from revision 2014-02-04 to 2015-05-03. === Bug fixes in 1.26 === * (bug 51283) load.php sometimes sends 304 response without full headers === Action API changes in 1.26 === * API action=query&list=tags: The displayname can now be boolean false if the tag is meant to be hidden from user interfaces. * action=import no longer allows both the namespace= and rootpage= parameters to be set. If they are both set, the value of rootpage= will be ignored. * prop=revision output in enum mode is now sorted by timestamp rather than revision ID. This usually won't make any difference. === Action API internal changes in 1.26 === === Languages updated in 1.26 === MediaWiki supports over 350 languages. Many localisations are updated regularly. Below only new and removed languages are listed, as well as changes to languages because of Bugzilla reports. === Other changes in 1.26 === * ChangeTags::tagDescription() will return false if the interface message for the tag is disabled. * Added PageHistoryPager::doBatchLookups hook. * Added ParserCacheSaveComplete to ParserCache * supportsDirectEditing and supportsDirectApiEditing methods added to ContentHandler, to provide a way for ApiEditPage and EditPage to check if direct editing of content is allowed. These methods return false, by default for the ContentHandler base class and true for TextContentHandler and it's derivative classes (everything in core). For Content types that do not support direct editing, an alternative mechanism should be provided for editing, such as action overrides or specific api modules. * mediaWiki.confirmCloseWindow now returns an object of functions, instead of one function. The callback can't be called directly any more. The callback function is replaced with confirmCloseWindow.release(). * Removed maintenance script deleteImageMemcached.php. * MWFunction::newObj() was removed (deprecated in 1.25). ObjectFactory::getObjectFromSpec() should be used instead. * The parser will no longer randomize the string it uses to mark the place of items that were stripped during parsing. It will use a fixed string instead. This causes the parser to re-use the regular expressions it uses to search and replace markers rather than generate novel expressions on each parse. Re-using regular expressions will improve performance on HHVM and the forthcoming PHP 7. The interfaces changes accompanying this change are: - Parser::getRandomString() and Parser::uniqPrefix() have been deprecated. - The $uniq_prefix argument for Parser::extractTagsAndParams() and the $prefix argument for StripState::_construct() are deprecated and their value is ignored. == Compatibility == MediaWiki 1.26 requires PHP 5.3.3 or later. There is experimental support for HHVM 3.3.0. MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but support for them is somewhat less mature. There is experimental support for Oracle and Microsoft SQL Server. The supported versions are: * MySQL 5.0.3 or later * PostgreSQL 8.3 or later * SQLite 3.3.7 or later * Oracle 9.0.1 or later * Microsoft SQL Server 2005 (9.00.1399) == Upgrading == 1.26 has several database changes since 1.25, and will not work without schema updates. Note that due to changes to some very large tables like the revision table, the schema update may take quite long (minutes on a medium sized site, many hours on a large site). If upgrading from before 1.11, and you are using a wiki as a commons repository, make sure that it is updated as well. Otherwise, errors may arise due to database schema changes. If upgrading from before 1.7, you may want to run refreshLinks.php to ensure new database fields are filled with data. If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed with MediaWiki 1.21. Don't forget to always back up your database before upgrading! See the file UPGRADE for more detailed upgrade instructions. For notes on 1.25.x and older releases, see HISTORY. == Online documentation == Documentation for both end-users and site administrators is available on MediaWiki.org, and is covered under the GNU Free Documentation License (except for pages that explicitly state that their contents are in the public domain): https://www.mediawiki.org/wiki/Documentation == Mailing list == A mailing list is available for MediaWiki user support and discussion: https://lists.wikimedia.org/mailman/listinfo/mediawiki-l A low-traffic announcements-only list is also available: https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce It's highly recommended that you sign up for one of these lists if you're going to run a public MediaWiki, so you can be notified of security fixes. == IRC help == There's usually someone online in #mediawiki on irc.freenode.net.