It won’t, but I would advise starting a new game never the less.
The game attempts to auto update saves from the previous version to the new version, but since this version has a few changes on the save data content, it can fail to make those updates correctly and you end up with one or other bug.
It is nothing major or serious, but can be tedious. The worst that can happen is having your base damage stuck at 15 I think.
Also I forgot to mention in the update post, the Recall Gallery is reset on your save as the pre-condition for fixing the the other scenes that couldn’t be unlocked.