Sadly, yes. A lot of things have been implemented, the UI being one of them. I know it's never ideal to start a game all over again, especially when it's already fairly big, but I promise there won't be any more rewrites hahaha. I'll also try to include an option to jump to chapter four for those who aren't interested in those changes and are just as impatient as I am to get to the latest chapter.
Hope that helps!