What factory-specific parts are there for JD tractors that aren't factory-only for other makes? Other than one-size-fits-many items like belts, filters, hydraulic cylinders, etc. most other stuff is OEM on other makes to. I'm not talking about repo parts for vintage tractors.
??? I was aware of zero issues transitioning from 32 to 64 bit Windows, I sure never had any.
I do recall several fanboy friends grumbling about when Macs went to Intel (?) processors and none of their old software ran on the new OS.