The day 1 patch is bundled in with GOG's game. You don't need another patch for it.

We included the day 1 patch with our install so you wouldn't need to register the game to play it, since that smacks a bit of DRM. If they've released another patch since yesterday, that's news to me.

I do seem to recall reading in the forums that Steam had something weird about their version which needed adjusting. That may be why they have a different build number.

We aim to please. :D

To the best of my knowledge--unless they've done something over there at CDP RED and haven't let me know about it--we pre-built our version of the game with the content-fixing patch. Our dev team was up late on Sunday evening / Monday morning getting that completed and uploaded to our CDN.

Once they have a new patch--which I imagine will be soon enough--we'll no longer have the most current version already included in the build. But I don't think you need to update the build that's currently installed from GOG.com.

I'll check in with people who are more in the know than I am and get back to you guys, though.