Microsoft said that the server version of Windows 7 will not be a major release and will bear the name Windows Server 2008 R2.

The move is surprising, given that in the past, Microsoft has used R2 monikers to signify a product with a few new features, as opposed to major changes to a product.

Microsoft declined to discuss what will be in Windows Server 2008 R2, but a spokesman confirmed that it is the server version of Windows 7. The release is due sometime in 2010, Microsoft said.

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