Greetings!
I am about to start working on a set of backwards incompatible changes to Bodhi for its upcoming 4.0.0 release (Bodhi follows Semantic Versioning[0]):
https://github.com/fedora-infra/bodhi/projects/6
If the thought of backwards incompatible changes to Bodhi raises one or both of your eyebrows, please peruse the list of proposed changes there and comment on any issues that may concern you. I can't be sure who is using Bodhi for what, so please let me know if you think any of these changes are a Bad Idea™.