OS X Yosemite
OS X Yosemite has been out for a while now, and I’m enjoying the heck out of using it. It’s probably the most full-featured OS release Apple has offered us in quite a while. While you’ve probably read plenty about the hero features, it’s still worth reading John Siracusa’s full review. At 25 pages in length, it’s about as in-depth as you can get.