The game started as explicitly loli/shota game, but very early on it was shifted to ambiguous age, shielded with famous disclaimer which is still in the game. However, setting, characters writing, and entire narrative heavily implied 18- (although still "too old" for hardline loli enjoyers: like 14-16+/-, not ten). It was like that for many ears, almost entire game lifespan, and everybody was happy. About a year ago devs started shifting it again from ambiguous 18- to unambiguous 18+. This update finalized the change. Game still has some traces of old content such as Robin's lemonade stand or some school lessons, but I assume it will be changed/adjusted as well in the future.
While it's insane to prosecute the dev for bending a knee, when he can face legal charges in his country for making a loli game, I also can understand why so many early fans are frustrated. You woudn't be happy as well if your favorite part was cut from your favorite game. Personally I think DoL loses a lot with it. You can depict a vulnerable adults, but it will never have the same impact as with kids. So while it is still a good game it definitely lost something little that made it special.