Can I install two instances (2012 and 2015) of TFS

问题:

We are looking at upgrading, but management does not want to buy another server.

We currently have TFS 2012 installed. Can I install TFS 2015 beside it or will that create a problem?

I would imagine I would at least need to configure a different port for TFS web.

回答1:

No you cannot. The installer for 2015 will force you to remove the 2012 Application Tier.

Your SQL Server database server will be shareable as long as it's a version that supported by both 2012 and 2015 (SQL Server 2012 (minimum SP1)). And as long as both instances have a different database label configured.