... I've heard that recent OS X's are able to go more than one step at a time with good migration. What have others experienced going to yos from earlier-than-mav?
I recently used Migration Assistant to move a PPC iMac running 10.5.8 to a retina iMac and Yosemite. It worked perhaps too well, as I also
imported a problem that had developed on the PPC iMac. If nothing else, this strongly suggests to have your current Mac’s house in order before you migrate your data ‘upward’. Unless, of course, you don’t care about messing up your new home right from the get-go.
As to the OP’s query, having a good backup is required if you want to minimize hassle shouldn’t things work out as expected. If the preferred option in such an eventuality is to revert OS versions, a clone is ideal.
