math conversion after upgrading, obtain the Math extension from SVN or from
http://www.mediawiki.org/wiki/Extension:Math and add to LocalSettings.php:
require_once "$IP/extensions/Math/Math.php";
+* $wgProfiler is now a configuration array, see StartProfiler.sample for details
+* $wgProfiling has been removed
=== New features in 1.18 ===
* (bug 8130) Query pages should limit to content namespaces, not just main