How do we delete a release in TFS 2013 Release Management?

ms-release-management, release-management, tfs

Solution

This is not possible with the current version (RM 2013 Update 4).

Only Releases in Draft state can be deleted.

Problem

We are using the Release Management, TFS 2013 (previously InRelease) and have a lot of releases that we would like to delete. The problem is that the "Delete" button is always greyed out. What are we missing here?

Original source