abayer gave me this link as a ref to the most up to date step for parallel stages: https://github.com/abayer/pipeline-model-definition-plugin/blob/jenkins-41334-mk2/rfc/JENKINS-41334-parallel-stage-execution.md

And some examples: https://github.com/jenkinsci/pipeline-model-definition-plugin/pull/152/files#diff-13c773a7c988e725755ddaa5e6d910a2

Ive added a link to the backend PR>

cliffmeyers can this be your next task?

jamesdumay cliffmeyers I spoke with Andrew about this briefly today as he's eager to get the new parallel syntax in. The changes for this ticket should be fairly trivial and I could probably get it knocked out in a few hours, it only has to do with modifying the declarative JSON conversion functions to a) support the new parallel model and b) always output the new parallel model instead of the old one.

kzantow I've got easily another day left on JENKINS-42791 so if you want to grab this one, by all means go for it. I can still lend a hand w/ the Git public key credential stuff once that one is done - which hopefully helps you out a bit.

cliffmeyers yes, I have just a bit of testing on the git backend and I'll pick this up while waiting on reviews and such; a good switch regarding the public key display, it probably is blocked a bit on what you're working on, anyway, since it's directly related to the same area

Is this one really different to https://issues.jenkins-ci.org/browse/JENKINS-41960 - sounds more and more like a duplicate. 

Seems that way to me, yes.

michaelneale this is effectively the same as JENKINS-41960 I'll enable the same stage editing as part of this ticket.