Apple delivers free macOS Sierra upgrade
Apple today released Sierra, 2016's edition of the Mac's operating system.
Sierra is the first under the "macOS" label Apple introduced in June when it retired the older "OS X" and synchronized the Mac's moniker with other operating systems from the Cupertino, Calif. company, like the iPhone's iOS and the Apple TV's tvOS.
Also known as macOS 10.12, Sierra's launch followed the first "golden master," or GM build, by two weeks.
Sierra was available Tuesday for free download from the Mac App Store. Although the upgrade was not immediately visible on the front page of the e-mart, a search using sierra quickly located the 4.8GB installation file.
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