Community reported: https://github.com/jenkinsci/jira-steps-plugin/pull/72
Need some updates on this pull request, I couldn't manage to find the api reported on this pull request.
dev-status is an internal API, but it's widely used in clients.
Tested on a couple of JIRAs that we have, this API is not consistent across these versions and as it is not public I am not planning on merging this. Sorry about that.
https://github.com/jenkinsci/jira-steps-plugin/pull/72