I get this warning with CleanChanges 1.28+8a0087c:
Strict Standards: Declaration of NCL::recentChangesLine() should be compatible with EnhancedChangesList::recentChangesLine(&$rc, $watched = false, $linenumber = NULL) in /home/pierre/www/archi-mediawiki/extensions/CleanChanges/CleanChanges_body.php on line 6