* (bug 38151) Implemented mw.user.getRights for getting and caching the current
user's user rights.
* Implemented mw.user.getGroups for getting and caching user groups.
+* (bug 37830) Added $wgRequirePasswordforEmailChange to control whether password
+ confirmation is required for changing an email address or not.
+* HTMLForm mutators can now be chained (they return $this)
=== Bug fixes in 1.20 ===
* (bug 30245) Use the correct way to construct a log page title.
* (bug 37331) ResourceLoader modules sometimes execute twice in Firefox
* (bug 31644) GlobalUsage, CentralAuth and AbuseLog extensions should not use
insecure links to foreign wikis in the WikiMap.
+* (bug 36073) Avoid duplicate element IDs on File pages
+* (bug 25095) Special:Categories should also include the first relevant item
+ when "from" is filled.
=== API changes in 1.20 ===
* (bug 34316) Add ability to retrieve maximum upload size from MediaWiki API.