Endoperez, no that is not possible. A client will crash with "game version number too low" if he detects a higher version on a server, a server will crash if he detects the same from a client (when receiving a turn). It is not possible to mix versions in a game.
TwoBits, if you're not on windows, just overwrite your files with those from the 3.08 patch. If you're on windows, use
this executable to do your turn.