=== New features in 1.20 ===
* Added TitleIsAlwaysKnown hook which gets called when determining if a page exists.
+* Added NamespaceIsMovable hook which gets called when determining if pages in a
+ certain namespace can be moved.
* (bug 32341) Add upload by URL domain limitation.
* &useskin=default will now always display the default skin. Useful for users with a
preference for the non-default skin to look at something using the default skin.
* (bug 5445) Now remove autoblocks when a user is unblocked.
* Added $wgLogExceptionBacktrace, on by default, to allow logging of exception
backtraces.
+* Added device detection for determining device capabilities.
+* QUnit.newMwEnvironment now supports passing a custom setup and/or teardown function.
+ Arguments signature has changed. First arguments is now an options object of which
+ 'config' can be a property. Previously 'config' itself was the first and only argument.
+* New getCreator and getOldestRevision methods added to WikiPage class
=== Bug fixes in 1.20 ===
* (bug 30245) Use the correct way to construct a log page title.
regularly. Below only new and removed languages are listed, as well as
changes to languages because of Bugzilla reports.
+* Tornedalen Finnish (fit) added.
* Mizo (lus) added.
* Santali (sat) added.
* (bug 34192) Namespace gender aliases for Albanian languages (sq & aln).