Posted January 26, 2020
Unfortunately, I do not own it on Steam to check in detail, but maybe someone else who does can check.
ariaspi: I don't know about the other games, but the STALKER series haven't received a patch in probably more than 5 years. Did you actually check what the changes are? Because they have nothing to do with the game itself.
Probably a copy & paste error, thanks for info, I have fixed it in main post. The soundtrack itself seems not (or no longer) be available for buying separately.
ariaspi: You're actually linking to SpellForce 2 Soundtrack. I don't see any soundtrack for Outcast 1.1 on Steam. Only for Outcast - Second Contact, which is missing on GOG.
Thank you Marko for the missing changelog!
MarkoH01: And here is the changelog for the missing update: