how to move old save to new ver?
On Windows, you copy the data from C:/Users/<User>/AppData/LocalLow/Whitecrocus/The Spirit Interactor to C:/Users/<User>/AppData/LocalLow/Whitecrocus/The Spirits of Sabil. This should've been automatically done by the game.
On Android, it is complicated, but I think you don't need to move them.
On Mac, I don't know.