Once again No Update therewhile Steam is Updated one Mounth ago . ! ?

Unfortunately, not only in this game. We GOG gamers are sometimes treated like crap by the developers.

Alright, now Highrise City is still up to date one Mounth Later :)

As far as I can tell, it's probably the case that game updates are checked by GOG itself, which often seems to take a long time.
I've also noticed this with other games in my library like for NO MAN SKY it's often 2 weeks.

But with all the EARLY Acces titles that don't get finished and stay in Trashing state you're a burnt market man :(