Tupolev has rolled out the first upgraded Tu-22M3M ‘Backfire’ at the Kazan Aviation Plant in Russia
Please notice, that the air refueling probe is back. The probe on the former Tu-22M3 was removed as a result of the SALT negotiations
The GSh-23 cannon in remotely controlled tail turret has been removed. The tail now incorporates rear facing avionics, IMHO an ECM avionic suite..
The turret is apparently supposed to be replaced in part by rear firing air to air missiles, similar to those intended for the Su-34. However, it's not at all clear whether that particular program has yet recovered from the depredations of Serdyukov and his cronies.