Yep, just got a patch on GoG too - they have been working on this since the release of 1.2 and they stopped updating it for the past 5 days, so i knew release was immenent. No patch notes yet though...
You can follow the game internal development here - https://steamdb.info/app/1091500/history/
The patch just went from internal qa to public build.
It shows up as 1.21 - some patch notes please CDPR?