it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
=== Configuration changes in 1.12 ===
+* Marking edits as bot edits with Special:Contributions?bot=1 now requires the
+ markbotedit permission, rather than the rollback permission previously used.
+ This permission is assigned by default to the sysop group.
=== New features in 1.12 ===
* (bug 10735) Add a warning for non-descriptive filenames at Special:Upload
$wgGroupPermissions['sysop']['upload_by_url'] = true;
$wgGroupPermissions['sysop']['ipblock-exempt'] = true;
$wgGroupPermissions['sysop']['blockemail'] = true;
+$wgGroupPermissions['sysop']['markbotedits'] = true;
// Permission to change users' group assignments
$wgGroupPermissions['bureaucrat']['userrights'] = true;