Bugs fixes, security improvements, performance and stability enhancements etc. It was the final version that was released beneath the name OS X, its successor, Sierra, was given the name under Mac OS X due to the reason that OS X is now named Mac OS.įeatures of OS X El Capitan 10.11.6 The latest OS X 10.11.6 Update includes some traditional changelog just like previous releases i.e. Mac OS El Capitan was given its name behind a type of rock formation that is found in the Yosemite National Park, focusing its predefined goals towards a refined edition of Yosemite. Being the successor of OS X Yosemite, it mainly focuses on stability, performance, and security. It was majorly released for server OS for Macintosh computers and Apple Inc.’s desktop. Mac OS X El Capitan: Being the 12th major release of macOS, Mac OS X El Capitan belongs to the Macintosh-Unix family of OS.