• Hah, it's nothing like a service pack update... but yeah, it's a featureless update purely for performance reasons (graphics, openCL, 64-bit, etc) and visual tweaks.

    If you're using a new machine (last 6 months) go for it as you'll notice the speed increase, otherwise I wouldn't really bother (some apps go haywire after the update and it's not as hassle free as Apple make out).

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