To do that, we looked at the entire system and refined it app by app. With OS X Yosemite, Apple set out to elevate the experience of using a Mac. OS X Yosemite changes how you see your Mac. And a completely new relationship between your Mac and iOS devices. The apps you use every day, enhanced with new features.
OS X Yosemite an elegant design that feels entirely fresh, yet inherently familiar.
Mac OS X Yosemite is the eighth major release of Mac OS X (now named macOS), Apple's desktop and server operating system for Macintosh computers.
