User blog comment:TOR/MediaWiki Upgrade/@comment-4805709-20120616130403/@comment-26686429-20120616130536

New features of a MediaWiki release are features of MediaWiki (the software that Wikia runs) itself, social features are typically not part of the core MediaWiki release, and are normally extensions built by Wikia. Most social features are able to be disabled with Special:WikiFeatures.