Just saw this on the internal VSTS alias!
"The Team Foundation Server Release Candidate bits including upgrade utilities are now available for download available
To upgrade from Beta3 Refresh to RTM, please follow these steps:
Backup your server and copy the data to a safe location (that should be a no-brainer).
Download the Team Foundation Server RC from
Download the Upgrade Utility.
Uninstall Team Foundation Server Beta 3 Refresh.
Follow the upgrade instructions, which are included with the Upgrade Utility.
Install Team Foundation Server RC.
Complete the post install upgrade instructions, which are included with the Upgrade Utility.
For a reference to the major changes since Beta3 refresh, please see Jeff's blog. "
Congratulations to everyone involved in this tremendous effort!