welcome to my faq, this is version 1.
I was trying to find out whether or not I needed the 'children patch' for this game - which is reported by most forum people here to be the 'US version'. But it's also pointed out that it has no children. So I searched 'child' and apparently about 20 people asked which version of the game we have here at gog.com. And the answers appear to be confused.
Personally I think it's the v1.2 that was part of the white label release. But people smarter than I can confirm that. Anyway, please add a FAQ about game version. As in:
Q: What version of Fallout is available from GOG?
A: Version 1.2 released worldwide. It incorporates some minor dialog fixes, as well as removes children avatars from the game, similar to the U.K. official release.
P.S. I'm not sure about any 'minor dialog fixes' myself. It's just what I read.