http://www.oracle-base.com/articles/11g/database-resident-connection-pool-11gr1.php
* Add a new parameter $patrolFooterShown to hook ArticleViewFooter so the hook
handlers can take further action based on the status of the patrol footer
+* A new hook TitleQuickPermissions was added to allow overriding of quick
+ permissions in the Title class.
* LinkCache singleton can now be altered or cleared, letting one to specify
another instance that does not rely on a database backend.
* MediaWiki's PHPUnit tests can now use PHPUnit installed using composer --dev.
* Special:Recentchangeslinked will now include upload log entries
* (bug 41281) Fixed ugly output if file size could not be extracted for multi-page media.
* (bug 50315) list=logevents API module will now output log entries by anonymous users.
+* (bug 38911) Handle headers with rowspan in jquery.tablesorter
=== API changes in 1.22 ===
* (bug 25553) The JSON output formatter now leaves forward slashes unescaped