You can use your old saves in new updates, in the creamsoda folder there should be a file (assuming you have save files) called save01 or save05 or something similar, if you dont know which save is your current one just copy them all from the old creamsoda folder into the new updated one, and the game should run fine!

In some cases it may be bugged or softlocked, but thats just a chance you will have to take.

(if it wont start try saving in different rooms)