TFS Update 2 Offers Settings Preservation for In-Place Upgrades

This post announces improvements to the in-place upgrade process for Team Foundation Server (TFS) 2012 and later. Update 2 for TFS 2012 preserves application tier settings, including SSL bindings and custom ports, during in-place upgrades. TFS 2013 will further extend this to preserve host headers and DNS names. Build settings will also be preserved for build servers starting with TFS 2012 Update 3. Proxy settings, including multiple endpoints, will be preserved in TFS 2013. The post clarifies that manual uninstallation of previous TFS 2012 instances should be avoided to benefit from settings preservation. It also notes that a whitelist of web.config settings will be merged, with the old web.config saved as web.config.sav for comparison.