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With Skype 5.3, Mac users can finally enjoy the HD calling feature that PC users have had for quite some time.
To take advantage of the feature, users will need to use one of the FaceTime HD camera built-in to newer iMac and MacBook Pro machines or use an external HD camera like the Logitech C910. Skype recommends that users have an upload/download rate of 1.5Mbps for HD calls.
The new version of the app is also fully compatible with Mac OS X Lion. If you haven't upgrade to Lion, Skype 5.3 still works with Mac OS X versions going back to Mac OS X Leopard.