Hey! Since the 1.0 release, all backend systems have been finalized. If your last save was in the beta version (0.*.*.*), this is the last time you'll have to restart. If your save was from a version after 1.0, you won't have to restart at all.
The story is currently on Season 2 Episode 3, and the next update will be a side content wave featuring 4 girls and a surprise scene from a secret 5th :
Main story will be updated in the patch following to Season 2 Episode 4.