MacOS Sierra is here. Learn if your Mac can run Apple's next computer operating system and, if so, how to download and install it. Matt Elliott Senior Editor Matt Elliott is a senior editor at CNET ...

Apple has released a finished version of macOS X Sierra. It’s a free download at the Mac App Store. It adds Siri support, Apple Pay support, a Universal Clipboard, and much more. macOS Sierra requires ...

There are a few reasons why you might want to download and install an old version of macOS or Mac OS X. Perhaps you’re relying on software you have discovered doesn’t work properly in the latest ...

MacOS High Sierra is here. Find out if your Mac can run Apple's next computer operating system and, if so, how to download and install it. Matt Elliott is a senior editor at CNET with a focus on ...