Yeah I'm still not exactly sure what the hell is going on with the update issue on android, because im quite sure that wasn't the case before? I know some people back up their saves with a file explorer, but it's definitely a pain in the ass for people that I would like to fix if I can.
Recently the renpy builder added a universal android version (the last update that went out used this, but none before) and I think people started reporting this issue when they released the v8 builds for newer devices? I've still been posting v7 ones because v8 just doesn't work on the older phones from what i can tell.
So if with the next update if people updating from the last ver to the next one still have issues I'll be def seeing what the hell is going on with that.
The caverns are technically done. Will still need to add side quests and give some characters in there updates later on, but I'd rather push on to the labyrinth or fix up the forest's content first.
Also where did you get February from? Or was that just a guestimate given my track record xD
Currently I'm working on updating the town and npcs, as well as internal system junk. The old npc system was garbage and had to be ripped out and replaced with the event system that everything else used.