An anonymous reader writes "One Microsoft Way is reporting that Microsoft has significantly incremented the build number of both Windows 7 and Windows Server 2008 R2: 'Reports across the Web are pointing to a build 7600 for both Windows 7 and Windows Server 2008 R2. This is significant because the bump in the build number would suggest that Microsoft has christened this build as the Release to Manufacturing (RTM) build. The RTM is expected to be given out to Microsoft partners sometime later this month and launched on October 22, 2009, the day of General Availability (GA). The build string is "7600.16384.090710-1945," which indicates that it was compiled just a few days ago: July 10, 2009, at 7:45pm. Microsoft only increments the build number when it reaches a significant goal, and the only one left is the RTM milestone. The last builds that were leaking were all 72xx builds, so such a large bump is suspicious but at the same time it is something Microsoft would do to signify that this is the final build.'"