Manual:RevisionDelete


 * Maybe you were looking for Extension:Oversight, a somewhat similar extension.

Core MediaWiki has a feature (that is disabled by default) that adds a special page called RevisionDelete. With that page you can change the visibility of a revision:
 * Hide revision text
 * Hide edit comment
 * Hide editor's username/IP

Deleted revisions and events will still appear in the page history and logs, but parts of their content will be inaccessible to the public.