Asai: I am still wondering about any patches are they with GoG installed automatically like Steam or do i have to get it and install it myself? If that is the case i do think this will be my last game from GoG. I know some will say the opposite of me which means at least some one will still buy games here it just will not be me.
Asai
I have the retail version, so I don't know for sure about GoG, but when you start the launcher it says there is an update and asks you if you want to update. Then it downloads the patcher and tells you when it is ready to install. You have to use it in the downloads folder in your witcher 2 folder in my documents to finish though.