* (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.
=== API changes in 1.20 ===
* (bug 34316) Add ability to retrieve maximum upload size from MediaWiki API.