Considering they haven't posted any form of update to their own website's community forum in six months... This isn't even surprising.

Honestly, starting to feel like they're not intending to deliver on their promises at this point.

Oh, they do provide changelogs. On Steam.
As always GOG customers aren't worth the effort or even reading here.

I mean .. really, it's always the same. I don't remember one title in my library being on the same community interaction level as Steam. And GOG itself doesn't care either. in some cases even the updates drop extreme late on GOG, like months late. But the changelog is by far the most ignored thing here.
And most publisher/developers seem to never read the forums ...