I've got 2 ssd's in my 13" mid 2012 mbp. One running yosemite 10.10.5, the other, running all the 10.11 betas. With some of the beta updates, came bootrom version upgrades (firmware). My question is: Is it ok to run the yosemite partition (for example) with the "newer" bootrom version, meant for el cap, lets say?
Because when I boot in yosemite, it shows the same, upgraded bootrom version installed by newest el cap beta....
Because when I boot in yosemite, it shows the same, upgraded bootrom version installed by newest el cap beta....