Hey!! The platform I am playing on is Windows ! I can't remember what version I was playing on before updating but I do have this "Purchased for $1.39 331 days ago (30% off)" If that helps at all.
Oh, that was a year ago! So, sorry but no, you can't get your old savegame back. I completely changed the structure of the game a few months ago. You'll have to start over (but you'll see some new things!)