OS X Yosemite: Completely New, Completely Mac

OS X Yosemite is the next version of the Mac operating system, including a revamped look and a number of new features. Over the years, OS X has changed in many ways. But the principles that define it haven’t: power, simplicity, beauty. So apple wanted to make it more powerful and easier to use, while maintaining the elements essential to Mac. The apps you use every day, enhanced with new features. And a completely new relationship between your Mac and iOS devices.