I've been playing the Township version 3.9.1 (modded APK) , but when I log into the game, it says an updated is needed. How do I update the game without losing any of my progress?
Also, I assume that I have to wait until a hacked version is available in order to update?
To answer your questions, you can update the game by uninstalling the currently installed mod and installing the newer version. You will lose your progresses if you didn't synch them with google or facebook.
Alternatively, if you're rooted, you can install the new version on the old one without uninstalling it. This way you will not lose any data or game progresses.