Here’s the entire list of all macOS devices that are compatible with the latest iteration of macOS update: Apple only said that it will support computers from mid-2012 or later, including 20 Mac Pro models with recommended Metal-capable graphics cards While Apple did boast about devices compatible with iOS 12, the company did not talk about what all generations or variants of Mac will support macOS Mojave. Here are the steps you need to follow to download and install macOS Mojave beta on any of your Mac computers: Apple released the first developer beta for macOS Mojave (macOS 10.14) when the keynote came to a close and you can try it out right away.