You can find the source of this version on GitHub at concourse/concourse. It was created based on the commit
You can reference this release in your deployment manifest from the
- name: "concourse" version: "3.9.1" url: "https://bosh.io/d/github.com/concourse/concourse?v=3.9.1" sha1: "235c704d50e62c9e089865dd43306659d5207690"
Or upload it to your director with the
bosh upload-release --sha1 235c704d50e62c9e089865dd43306659d5207690 \ https://bosh.io/d/github.com/concourse/concourse?v=3.9.1