Mine worked fine.
When you load the updated game, your saves will be shaded. When you click to load a specific save, you'll get an error message that the save is from an older version of the game, and stuff might not work. Just continue clicking through the errors (I think there are two total, but don't hold me to that) until the save loads. Then immediately re-save the game and overwrite your old save, with whatever text you use to describe it, the save thumbnail will show like normal, and you'll be good to go.