After some convincing internal builds leaks of Windows 9, we are now hearing rumors that Microsoft is working feverishly towards a release of "Windows Threshold Technical Preview" next month following the earlier announced rapid-release cycle schedule for Windows OS. The newest feature to make it's way into current builds of "Windows 9" would be the ability to upgrade "Windows builds" with a single-click without requiring a complete re-installation of the OS as needed with older Windows OS's.