$wgJobClasses may now specify callback functions as an alternative to plain class names. This is intended for extensions that want control over the instantiation of their jobs, to allow for proper dependency injection.
$wgResourceModules may now specify callback functions as an alternative to plain class names, using the 'factory' key in the module description array. This allows dependency injection to be used for ResourceLoader modules.
Added the 'ChangeTagsAllowedAdd' hook, enabling extensions to allow software- specific tags to be added by users.
Added the 'ParserOptionsRegister' hook to allow extensions to register additional parser options.
(T45547) Included Pig Latin, a language game in English, as a LanguageConverter variant. This allows English-speaking developers to develop and test LanguageConverter more easily. Pig Latin can be enabled by setting $wgUsePigLatinVariant to true.
Added the 'RecentChangesPurgeRows' hook to allow extensions to purge data that depends on the recentchanges table.
When errorformat is not 'bc', abort reasons from action=login will be formatted as specified by the error formatter parameters.
action=compare can now handle arbitrary text, deleted revisions, and returning users and edit comments.
(T164106) The 'rvdifftotext', 'rvdifftotextpst', 'rvdiffto', 'rvexpandtemplates', 'rvgeneratexml', 'rvparse', and 'rvprop=parsetree' parameters to prop=revisions are deprecated, as are the similarly named parameters to prop=deletedrevisions, list=allrevisions, and list=alldeletedrevisions. Use action=compare, action=parse, or action=expandtemplates instead.
操作APIの内部的な変更
ApiBase::getDescriptionMessage() and the "apihelp-*-description" messages are deprecated. The existing message should be split between "apihelp-*-summary" and "apihelp-*-extended-description".
(T123931) Individual values of multi-valued parameters can now be marked as deprecated.
言語の更新
カビエ語(Kabɩyɛ / Kabiyè)のサポートが追加されました。
その他の変更
IP アドレスが値でなくキーである連想配列を $wgProxyList に使用することは非推奨となります(例:[ '127.0.0.1' => 'value' ])。これらの配列は、インデックスが付けられた/シーケンシャルなものに変換してください(例:[ '127.0.0.1' ])。
(T146304) Preprocessor handling of LanguageConverter markup has been improved. As a result of the new uniform handling, '-{' may need to be escaped (for example, as '-<nowiki/>{') where it occurs inside template arguments or wikilinks.
(T163966) Page moves are now counted as edits for the purposes of autopromotion, i.e., they increment the user_editcount field in the database.
The OldChangesListRecentChangesLine, EnhancedChangesListModifyLineData, PageHistoryLineEnding, ContributionsLineEnding and DeletedContributionsLineEnding hooks have an additional parameter, for manipulating HTML data attributes of RC/history lines. EnhancedChangesListModifyBlockLineData can do that via the $data['attribs'] subarray.
WikiPage::getParserOutput() will now throw an exception if passed ParserOptions that would pollute the parser cache. Callers should use WikiPage::makeParserOptions() to create the ParserOptions object and only change options that affect the parser cache key.