Are you using Android to play the game? In this case you're required to manually transfer your saved for each version. But for PC and Mac, saved automatically carry over to any future update so long as you don't delete them. (On PC they're stored in appdata)
I'm playing on PC, and when I load up the game after the update there aren't any saves to load at all. I only have the option for a new game, but with over 32hrs in the game I don't want to start again!
