Special:Version
* Edit notices can now be translated.
* (bug 22887) Add warning and tracking category for preprocessor errors
+* (bug 31704) Allow selection of associated namespace on the watchlist
=== Bug fixes in 1.20 ===
* (bug 30245) Use the correct way to construct a log page title.
* (bug 32492) API now allows editing using pageid
* (bug 32497) API now allows changing of protection level using pageid
* (bug 32498) API now allows comparing pages using pageids
+ * (bug 30975) API import of pages with invalid characters in this wiki leads to Fatal Error
=== Languages updated in 1.20 ===