macOS Sierra (version 10.12) is the thirteenth major release of macOS (formerly known as OS X and Mac OS X), Apple Inc.'s desktop and server operating...

macOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. macOS High Sierra...

The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project...

macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001. It is the primary operating...

Apple's practice of naming macOS releases after landmarks in California, it is named after Sequoia National Park, located in the Sierra Nevada mountain range...

that began with OS X Mavericks. It succeeded macOS High Sierra and was followed by macOS Catalina. macOS Mojave is the last version of macOS that features...

effectively turns Gatekeeper off. This is the default setting in Lion. Since macOS Sierra (10.12) this option is hidden by default. However, this option can be...

Install macOS Sierra on Any Supported Intel-based PC". September 29, 2016. Computer, Hackintosh (August 20, 2016). "Hackintosh macOS Sierra with MacPwn"....

of OS X to support Aluminum Macs and Xserve, as its successor, macOS Sierra drops support for the mid 2007 and final models. All Macs supporting OS X Mountain...

macOS Sonoma (version 14) is the twentieth major release of macOS, Apple's operating system for Mac computers. The successor to macOS Ventura, it was...