Upgrading to Team Foundation Server 2015 Update 2.1

How to upgrade an on premises Team Foundation Server to version 2015 update 2.1 Recently I had the task of upgrading our on premises TFS solution from TFS 2013 Update 5 to TFS 2015 Update 2.1. This article discusses the upgrade steps, how long the process took, as well as some of the pitfalls with …