=== 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 22887) Add warning and tracking category for preprocessor errors
* (bug 31704) Allow selection of associated namespace on the watchlist
* (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.
* (bug 31757) Add a word-separator between help-messages in HTMLForm
* (bug 30410) Removed deprecated $wgFilterCallback and the 'filtered' API error.
* (bug 32604) Some messages needs escaping of wikitext inside username
+* (bug 36537) Rename wfArrayToCGI to wfArrayToCgi for consistency with wfCgiToArray.
+* (bug 25946) The message on the top of Special:RecentChanges is now displayed
+ in user language instead of content language
=== API changes in 1.20 ===
* (bug 34316) Add ability to retrieve maximum upload size from MediaWiki API.
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).
* (bug 35541) Namespace gender aliases for Croatian (hr).
-* Mizo (lus) added.
* (bug 36012) Space in $separatorTransformTable should be non-breaking in
Portuguese, Esperanto and Udmurt.