beldorianer: If you don't mind installing GOG Galaxy you can use its update feature. The patch was about 950 MB I think.
Besides that there seems to be no other option than a complete re-download at the moment.
misscrabtree456: Too bad the dippy app says I have no games installed. Morons
i think there is an option to scan for gog games. I like galaxy cause i dont have to check dl and install patches manually but the game remains drm free unlike steam
monkeychuan: I just installed GOG galaxy and it looks like it's asking me to do a re-install of the game, anyways, which is pretty poor.
Since it appears at least some of us will have to do a complete re-install anyways, does anyone know if save data will remain, or do we have to start the game over?
when uninstalling u can choose to keep ur saves. u can backup them manually theyre in appdata folder. but is syncing not working from galaxy?