macOS Sierra (version 10.12) is the name of Apple’s desktop operating system, and was revealed at its annual Worldwide Developers Conference on June 13, 2016. After using the “OS X” moniker for the ...

Seems fine on my 2012 MBP w/ spinning rust. Comparing performance with an SSD system's on you, not the OS. It works acceptably for what it is - no worse than any prior OS running on the same spinning ...

Microsoft clearly expects Office 365 for Mac users to keep their computers at least generally up to date. The company requires users to run macOS Sierra or a newer ...

Apple’s macOS operating system has changed a lot over the last 25 years, with new features and designs coming and going as the decades have passed. Even the name has been adjusted, starting out as Mac ...

I need to install Sierra on a Mac that doesn't have it yet. The links to the App Store are dead, can't install it from the purchases because Apple removed it, and can't do High Sierra because of Adobe ...