If you’re still rocking a cheese grater-style Mac Pro, macOS High Sierra may include a firmware update for you. The firmware update installs as part of the High Sierra upgrade process so you don’t have to go looking for it before making the jump to the new OS.
It looks like the Mac Pro firmware update is showing up just for the 5,1 models. Those are the big silver box style manufactured between June 2012 and October 2013 when the black glossy cylinder style Mac Pro was introduced.
If you’re planning on running Apple’s latest and greatest macOS on your silver workhorse Mac Pro be sure to plan a little extra time for the firmware update.
We’re also seeing reports of some older Macs, like the 2011 17-inch MacBook Pro, failing their firmware check after installing macOS High Sierra. Rebooting again seems to fix the problem.
macOS High Sierra was first shown off earlier this year at Apple’s Worldwide Developer Conference. It was officially released to the public earlier today and is a free upgrade for all compatible Mac models.