Every now and then my account flags up that a game I own has been updated which is great news. However, is it possible to tell which file has been updated i.e. has extra bonus content been added or has the game itself been updated? At present the only solution appears to be to download everything again?
Thanks

Best thing is to check this thread:
http://www.gog.com/forum/general/the_what_did_just_update_thread
Normally there are enough people and blue responses to figure out what updated :-)

Thanks :)

You spoiled all the fun. It's the latest GOG forum game, "Guess what's been updated", and the winner gets this amazing prize. ;-D