= MediaWiki release notes = Security reminder: MediaWiki does not require PHP's register_globals. If you have it on, turn it '''off''' if you can. == MediaWiki 1.21 == THIS IS NOT A RELEASE YET MediaWiki 1.21 is an alpha-quality branch and is not recommended for use in production. === Configuration changes in 1.21 === * (bug 29374) $wgVectorUseSimpleSearch is now enabled by default. * Deprecated $wgAllowRealName is removed. Use $wgHiddenPrefs[] = 'realname' instead. === New features in 1.21 === * (bug 34876) jquery.makeCollapsible has been improved in performance. * Added ContentHandler facility to allow extensions to support other content than wikitext. See docs/contenthandler.txt for details. * New feature was developed for showing high-DPI thumbnails for high-DPI mobile and desktop displays (configurable with $wgResponsiveImages). * Added new backend to represent and store information about sites and site specific configuration. * jQuery UI upgraded from 1.8.23 to 1.8.24. * Added separate fa_sha1 field to filearchive table. This allows sha1 searches with the api in miser mode for deleted files. * Add initial and programmatic sorting for tablesorter. * Add the event "sortEnd.tablesorter", triggered after sorting has completed. * The Job system was refactored to allow for different backing stores for queues as well as cross-wiki access to queues, among other things. The schema for the DB queue was changed to support better concurrency and reduce deadlock errors. * Added ApiQueryORM class to facilitate creation of query API modules based on tables that have a corresponding ORMTable class. * (bug 40876) Icon for PSD (Adobe Photoshop) file types. * (bug 40641) Implemented Special:Version/Credits with a list of contributors. * (bug 7851) Implemented one-click AJAX patrolling. === Bug fixes in 1.21 === * (bug 40353) SpecialDoubleRedirect should support interwiki redirects. * (bug 40352) fixDoubleRedirects.php should support interwiki redirects. * (bug 9237) SpecialBrokenRedirect should not list interwiki redirects. * (bug 34960) Drop unused fields rc_moved_to_ns and rc_moved_to_title from recentchanges table. * (bug 32951) Do not register internal externals with absolute protocol, when server has relative protocol. * (bug 39005) When purging proxies listed in $wgSquidServers using HTTP PURGE method requests, we now send a Host header by default, for Varnish compatibility. This also works with Squid in reverse-proxy mode. If you wish to support Squid configured in forward-proxy mode, set $wgSquidPurgeUseHostHeader to false. * (bug 37020) sql.php with readline eats semicolon * (bug 11748) Properly handle optionally-closed HTML tags when Tidy is disabled, and don't wrap HTML-syntax definition lists in paragraphs. * (bug 41409) Diffs while editing an old revision should again diff against the current revision. * (bug 41494) Honor $wgLogExceptionBacktrace when logging non-API exceptions caught during API execution. * (bug 37963) Fixed loading process for user options * (bug 26995) Update filename field on Upload page after having sanitized it. * (bug 41793) Contribution links to users with 0 edits on Special:ListUsers didn't show up red. * (bug 41899) A PHP notice no longer occurs when using the "rvcontinue" API parameter. * (bug 42036) Account creation emails now contain canonical (not protocol-relative) URLs. * (bug 41990) Fix regression: API edit with redirect=true and lacking starttimestamp and basetimestamp should not cause an edit conflict. * (bug 41706) EditPage: Preloaded page should be converted if possible and needed. === API changes in 1.21 === * prop=revisions can now report the contentmodel and contentformat, see docs/contenthandler.txt * action=edit and action=parse now support contentmodel and contentformat parameters to control the interpretation of page content; See docs/contenthandler.txt for details. * (bug 35693) ApiQueryImageInfo now suppresses errors when unserializing metadata. * (bug 40111) Disable minor edit for page/section creation by API * (bug 41042) Revert change to action=parse&page=... behavior when the page does not exist. === Languages updated in 1.21 === 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 1.21 === == Compatibility == MediaWiki 1.21 requires PHP 5.3.2 or later. 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 IBM DB2 and Oracle. The supported versions are: * MySQL 5.0.2 or later * PostgreSQL 8.3 or later * SQLite 3.3.7 or later * Oracle 9.0.1 or later == Upgrading == 1.21 has several database changes since 1.20, 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, some major database changes are made, and there is a slightly higher chance that things could break. Don't forget to always back up your database before upgrading! See the file UPGRADE for more detailed upgrade instructions. For notes on 1.19.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.