AS-GT: current firmware versions

Looking at a used Celestron AS-GT mount. The seller reports the Hand Controller firmware version is 4.00 while the Motor Controller versions are both 5.07

How far behind the current versions are these? I notice the Celestron site includes a manual .pdf for Hand Controller version 4.10; which I would assume (??) is current. If someone with a spanking new AS-GT could fire it up and go menus>utilities>version, it should show what's current.

Any info on what features this older version lacks compared to current would also be appreciated. Trying to decide whether I'd be better off buying new. I realize they're flash upgradeable, but the hardware needed for doing the upgrade costs $$ too.

Thanks.
Bob

FWIW: 4.12 is the current Hand Controller version. 5.07 is the current motor controller version. As confirmed by Celestron customer support.
Bob