
New features like annotations and markup in Mail and Preview are slotted smoothly into familiar apps.

In our testing, Yosemite was blazingly fast on a MacBook Pro with a Retina ( at Amazon) (Opens in a new window) display, and, unsurprisingly, a bit slow on a 2010 MacBook that's also sluggish with everything else.Įverything in the OS gets a consistent, cleaned-up, flattened look. It's a free update for anyone using a Mac made in 2008 or later (and some 2007 models), but (of course) it works best with recent hardware. Yosemite remains the most technically spectacular manifestation of Apple's desktop OS ever, and now it's better than ever. The update addresses issues with Wi-Fi, email, Back to My Mac, and several other kinks and security concerns. OS X Yosemite-the tenth version of Apple's desktop operating system-gets its first update after a month of existence, with 10.10.1.

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