I thought u said the windows version updates automatically. Mine didn't. Did u make sure it works on that version?
Viewing post in Mountain Zone Update! - v0.4 comments
the Launcher should handle the updates on its own, make sure you open the game through the Launcher (MazinLauncher.exe) and not directly through its files. if that is what you're doing then your installation is faulty, make sure to extract the downloaded launcher and put all of the files together in a folder if its not already in one. if you need further help id love to help you over Discord where we can send screenshots and see whats going on on your side