You can find the source of this version on GitHub at concourse/concourse-bosh-release. It was created based on the commit
You can reference this release in your deployment manifest from the
- name: "concourse" version: "4.2.3" url: "https://bosh.io/d/github.com/concourse/concourse-bosh-release?v=4.2.3" sha1: "915ab6a3ea9fa8e611887e51630c7a4947dcd8c1"
Or upload it to your director with the
bosh upload-release --sha1 915ab6a3ea9fa8e611887e51630c7a4947dcd8c1 \ https://bosh.io/d/github.com/concourse/concourse-bosh-release?v=4.2.3