So one of the biggest comments from the initial release was that people liked .vespene files, but wanted them to be able to create pipelines that didn't exist.
Previously they could assign projects to pipelines and stages, but couldn't reorder a pipeline, and the pipeline had to be created in the GUI. While fine for a small configuration, in a site with 100s of microservices that could get out of hand quickly.
So... this is now possible!
You will need to run "make migrate" once after updating code, as this adds a new database field.
You may turn the behavior off inside organization settings if you find it too powerful.