In VS Team Services > Releases, I want to 'promote' a specific build/artifact version to a single environment. For example:
Dev QA Prod
v223
v123 v123
I want to promote #123 to Prod, but it looks like the only way to do that is to Create a release to all 3 environments, which will overwrite #223.
There isn't any way to do this for now. You can submit a feature request on VSTS User Voice: http://visualstudio.uservoice.com/forums/330519-team-services/