macOS 10.13 High Sierra is the fourteenth version of macOS, and the follow up to macOS Sierra. Much like how OS X Snow Leopard was a refinement of OS X Leopard, macOS High Sierra is highly ...

As a result, people with a basic free developer account are able to download the new macOS developer ... downgrading to an older version of the Mac OS. Karen has worked on both sides of the ...

Wondering which versions of macOS your Mac can run? We’ve put together a macOS compatibility checker that will show you what Macs the different versions of macOS and Mac OS X support ...