Windows Server 2008 R2 build 6608

Windows Server 2008 R2 build 6608 is an unleaked build of Windows Server 2008 R2. Only a single image from a blog of a Microsoft employee of the login screen has been shown. The original blogpost has since been deleted, but some of its contents were later archived by other sites.

This build is also mentioned in build 6801's setup. In particular, it notes that you can only upgrade if running build 6608 or higher.

Changes

 * Changed the branding from "Windows Server 2008" to the codename for the OS, Windows Server 7.