* (bug 39957) Added $wgUnwatchedPageThreshold, specifying minimum count
of page watchers required for the number to be accessible to users
without the unwatchedpages permission.
+* $wgBug34832TransitionalRollback has been removed.
=== New features in 1.21 ===
* (bug 38110) Schema changes (adding or dropping tables, indicies and