v0.231 is the final version. No further updates are planned at this time.
You're absolutely right — it should be called v1.0. The story has been completed all the way through to the ending. Hachienden was created during a time when I was still unfamiliar with game development, so I didn’t even understand how version naming worked. It would be a bit of a hassle to change it now, so I hope you don’t mind if I leave it as is.