* (bug 45143) jquery.badge: Treat non-Latin variants of zero as zero as well.
* (bug 46151) mwdocgen.php should not ignore exit code of doxygen command.
* (bug 41889) Fix $.tablesorter rowspan exploding for complex cases.
+* (bug 47489) Installer now automatically selects the next-best database type if
+ the PHP mysql extension is not loaded, preventing fatal errors in some cases.
=== API changes in 1.21 ===
* prop=revisions can now report the contentmodel and contentformat.