hi, no! not necessarily, if you have save slots you can use them, unless they are very old, they should be good from 1.5 onwards, otherwise at the beginning there is a menu with buttons that takes you directly on the route with various updates, this I did both to facilitate you, in not always repeating the story because with the variation of updates are made new revisions in English and the system allows you to skip only phrases that have not changed and then it also serves me because if I have to review the programming I can vary it without having the limit to bring down your Save.