Per steam: https://steamcommunity.com/app/648410/, there was a small update on Feb 26. The update had a few fixes, mainly:
- Fixed not being able to ask the mutant trader about the rifle after the first dialogue.
- Fixed civilians walking in place when loading a save on the same map in the middle of combat.
- Fixed Hargrave having two energy SMGs.
- Fixed some lockpick checks in hydroponics giving less LP than intended.
- Fixed minor issues with dialogues.

Is the update going to be released on GOG?

The update's been uploaded to the test branch.

Thanks.