It would appear it is only the Mac Pro 5.1 machines that are needing the firmware update. We are getting reports (thanks Mick Corey) that when Mac Pro 5.1 owners are installing macOS 10.13 High Sierra that Apple is updating the Firmware as part of the High Sierra install. Mac Pro Needs A Firmware Update For High Sierra Which Apple Computers Are Compatible With macOS High Sierraįrom the information we have so far, it would appear that every Mac that can run the macOS Sierra can run High Sierra. Experience has told us that upgrades rarely are straightforward, especially OS upgrades as they often have knock-on effects, so wait until you have time to fix the unforeseen problems. We always recommend that you leave any upgrade until you have some downtime.
As soon as brands let us know about their macOS High Sierra compatibility then we will update this article as we did with our macOS Sierra Pro Audio Compatibility article. Absence on this list should be taken as not compatible, initially, information will be scarce.
