They were likely delayed because of the problems GOG has been having with their CDN, causing many games to not be downloadable.
At the moment, the Windows offline installer is at 1.0.2.0 (you might be able to get a newer version via Galaxy), while the Linux offline installer is at 1.0.3.2
(By the way, while I have enjoyed what I've played of the game so far, I wish the game would tell you how many enemies my attacks are hitting, particularly since I've had instances where I'd use what I think is a single target attack (like my Priest's basic attack) and somehow kill 2 enemies with it.)