Support of Mac OS X 10.7.x Lion, Mac OS X 10.8.x Mountain Lion, Windows 7 SP1 32 and 64 bit, Windows 8 32 and 64 bit operating systems.

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"The pace of innovation on the Mac is amazing, OS X Mountain Lion comes just a year after the incredibly successful launch of Lion, " said Philip Schiller, Apple's senior vice president of Worldwide Marketing.

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Starting today, customers who purchase a Mac are eligible for a free copy of OS X Mountain Lion when it becomes available.

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Developers also may get a closer look at OS X Mountain Lion, the Mac operating system scheduled for release this summer.

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Mac: Mountain Lion has sold 7M copies since July, fastest ramp of the OS X releases to date.

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The OS X Mountain Lion Up-to-Date upgrade is available at no additional charge via the Mac App Store to all customers who purchased a qualifying new Mac system from Apple or an Apple Authorized Reseller on or after June 11, 2012.

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