* (bug 4220) the XML dump format schema now have unique identity constraints
for page and revision identifiers. Patch by Elvis Stansvik.
* (bug 35705) QUnit upgraded from 1.2.0 to 1.7.0
+* cleanupSpam.php now can delete spam pages if --delete was specified instead of blanking
+ them.
=== Bug fixes in 1.20 ===
* (bug 30245) Use the correct way to construct a log page title.
* (bug 25946) The message on the top of Special:RecentChanges is now displayed
in user language instead of content language
* (bug 35264) Wrong type used for <ns> in export.xsd
+* (bug 24985) Use $wgTmpDirectory as the default temp directory so that people
+ who don't have access to /tmp can specify an alternative.
=== API changes in 1.20 ===
* (bug 34316) Add ability to retrieve maximum upload size from MediaWiki API.