Nope,its just Idk maybe if i download the latest game(day 7) i have to uninstall the game wich is only up to(day 6)only and i dont know how to like,put your save game data on that updated version?(if possible)
The save files work pretty much the same with every update. The only changes are the details of every save file regarding the time you saved, the day you were playing when it was saved, and what day the save file was made.