The following lines were added (+) and removed (-):
/Users/username/Library/Containers/st.angeldu.AngeldustOSX/Data/Library/Application Support/Metagaming B.V./Angeldust/ to /Users/username/Library/Application Support/Metagaming B.V./Angeldust/depending on which path has your previous game data files. The beta seems to favor the non-container path while the original itch.io binary favors the container. If you obtained the original from Apple store then you should not have to worry about this step.