Itchy Ferret

Hello. I am wondering how often the TrueEarth sceneries are updated. I have owned TrueEarth Great Britain South for over a year now. I regularly log into Orbx Central but not once has it prompted me to download any updates for GB South. Updates to the Sceneries Asset Mgr are released from time to time, so I am being notified about updates. I see that folks submit scenery update requests (myself included) in this forum, but does anything ever get changed/updated? Thank you.