The release has been updated from v1.0.2 to v1.0.4 on GOG today (Aug 2). No idea what they changed, but maybe that's fixed now.
No updates for me, It's still V1.0.2
No update triggered for me, but I have been installing uninstalling a couple of times to test things. Forcing update says that no update available
Galaxy shows that the last version in 1.0.4. patch notes is greyed out though. The offline installer is also 1.0.4 but when I download it sizes do differ.
For testing I have installed the game via installer but It is hard to know if it changed something because there is not way to know the version ingame either.
I looked into Steam and no update movements at all. So I guess that the update would be GOG only.
In summary I have no idea the version I am running :D
I just noticed that too, The offline installer is v1.0.4 and i'vei had 1.0.2 downloaded since the release day
Yet the game itself hasn't gotten an update through GOG galaxy.