We have some outdated notes here on what are upstream release and branching process should be: https://github.com/openstack-k8s-operators/dev-docs/blob/main/release_and_branching.md

This has changed for each dev-preview release. And again for beta we aren't even branching or tagging anything upstream.

This epic is about getting with release engineering and defining what our release process target is, and then making any adjustments upstream to accommodate that including docs.