Version number Is still labeled as 2.0.0. Build number is now 163 which is shown on the info page of the GUI but if you are getting a crash before seeing that you wouldn't know that.
pm your Mac serial number so we can look up
Exactly what CPU it is. Maybe our CPU detection code misidentifies some CPUs or something. That'd prob be an easy on to fix if true.
I'm gonna round up an older Mac Pro later today and see what I can find.
