Not necessarily but probably, as I may have changed things in the gamethat may leave your file in an unwinnable situation.
I guess you can try reloading as your saves should still be there, but I can't guarantee there won't be issues since it's not a linear VN.
If it's helpful, new Patreon Updates currently come with a cheat mode that starts you just with the right settings to see the new content, plus the ability to simply see all new scenes directly.