Uncommon
MacOS High Sierra
2017 operating system version
MacOS High Sierra
macOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple's desktop operating system for Macintosh computers. macOS High Sierra was announced at the WWDC 2017 on June 5, 2017, and was released on September 25, 2017. The name "High Sierra" refers to the High Sierra region in California. Its name signified its goal to be a refinement of the previous macOS version, macOS Sierra, focused on performance improvements and technical updates rather than features. This makes it similar to previous macOS releases Snow Leopard, Mavericks and El Capitan. Among the apps with notable changes are Photos and Safari. macOS High Sierra is the final version of macOS to support the Unibody iMac and the Polycarbonate Unibody MacBook, as its successor, macOS Mojave, drops support for the late 2011 and final models. macOS High Sierra is the first to run on a Mac with a T2 Security chip.
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