That's ok if you want to wait and yeah, it'll be like this for all versions going forward until I finish this game.
The reason is, it's a lot easier this way, since a lot of users on android were struggling with/didn't know how to use their past saves.
And it also saves time not having to do bug testing on older saves to make sure they're compatible with the newer versions.
I can't speak for everyone, but from what I've seen, most people are ok with it, mainly because you don't really lose any progress.
For example, let's say you decided to go Lily's love route in an older update. When you play the next version/jump to the latest content in the next, you can select that choice and continue playing based off that decision.
The only real choices that I haven't included when jumping to the latest content, are characters deaths. Which if that's something you're interested in and want to see how the game plays with the girls dying, then I can understand.
