Adding to this you can get the save manually if you go into the cabin by the lake folder, then go to the "game" folder, then go to the "saves" folder. From there you can either move the save folder into the same spot in the new version or just your most recent saves.
It's worth noting that there won't be a "saves" folder in the new version until you've saved in that version or until you make/move the folder there yourself.