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![Mac Os X 10.12 Market Shares 2017 Mac Os X 10.12 Market Shares 2017](/uploads/1/2/5/7/125777804/519602553.png)
![Mac Os X 10.12 Market Shares 2017 Mac Os X 10.12 Market Shares 2017](/uploads/1/2/5/7/125777804/756134048.png)
Bought a pair of Bose QC35's in March. I was promised it's among the best noise cancelling earphones on the market, so Imagine my surprise when the audio totally sucked from my Mac. MacOS Sierra (version 10.12) is the thirteenth major release of macOS (previously OS X), Apple Inc.' S desktop and server operating system for Macintosh computers. The successor to OS X El Capitan, it was the first version of the operating system issued under the June 2016 rebranding as macOS.