Upgrading TFS 2010 Beta2 when configured for HTTPS
If you have TFS 2010 Beta2 configured for SSL/HTTPS, and upgrade to TFS 2010 RC or RTM, you must remember to reconfigure TFS to use HTTPS after the upgrade.
The uninstall+upgrade process drops your SSL configurations, so your server will be back to the default port and protocol, ie, https://server:8080/tfs, yet the Server URL and Notification URL will have your Beta2 settings, ie: https://server:8443/tfs. As a result you will need to manually reconfigured TFS to use HTTPS after upgrade.