I "crafted" a Mac version using the PC data, it loads the previous saves and it allowed me to get to the end of 64051 (64% completed) without any apparent bug ... but keep in mind that i used a save from previous version so i just tested new content.
Here you can download Mac 64051 unofficial version:
You must be registered to see the links
Let me know if any errors occur
It worked from 48022 too