tags.
* Added 'ChangeTagsListActive' hook, to separate the concepts of "defined" and
"active" formerly conflated by the 'ListDefinedTags' hook.
+* Added TemplateParser class that provides a server-side interface to cachable
+ dynamically-compiled Mustache templates (currently uses lightncandy library).
+* Clickable anchors for each section heading in the content are now generated
+ and appear in the gutter on hovering over the heading.
==== External libraries ====
* MediaWiki now requires certain external libraries to be installed. In the past
** 'extend' method added to QuickTemplate to append additional values to any field of data array
* (T86974) Several Title methods now load from the database when necessary
(instead of returning incorrect results) even when the page ID is known.
+* (T74070) Duplicate search for archived files on file upload now omits the extension.
+ This requires the fa_sha1 field being populated.
=== Action API changes in 1.25 ===
* (T67403) XML tag highlighting is now only performed for formats
* list=tags has additional properties to indicate 'active' status and tag
sources.
* siprop=libraries was added to ApiQuerySiteInfo to list installed external libraries.
+* (T88010) Added action=checktoken, to test a CSRF token's validity.
+* (T88010) Added intestactions to prop=info, to allow querying of
+ Title::userCan() via the API.
=== Action API internal changes in 1.25 ===
* ApiHelp has been rewritten to support i18n and paginated HTML output.
* Deprecated Revision methods getRawUser(), getRawUserText() and getRawComment().
* BREAKING CHANGE: mediawiki.user.generateRandomSessionId:
The alphabet of the prior string returned was A-Za-z0-9 and now it is 0-9A-F
+* (T87504) Avoid serving SVG background-images in CSS for Opera 12, which
+ renders them incorrectly when combined with border-radius or background-size.
== Compatibility ==