Apple released its latest version of Mac OS X, called Yosemite, the second version named after a place in California. It also marks a particular synergy between OS X and iOS — not a merging of the two — but rather an easier way to get them working with one another. It also marks a new look, one that flattens the visuals to fall more in line with the current graphics seen in iOS. There are plenty of new features, and a straightforward upgrade process to get to them.