* This PR will leverage subtests on the existing table tests for the scheduler units. ([#63658](https://github.com/kubernetes/kubernetes/pull/63658), [@xchapter7x](https://github.com/xchapter7x))
    * Some refactoring of error/status messages and functions to align with new approach.
* kubeadm upgrade now supports external etcd setups again ([#63495](https://github.com/kubernetes/kubernetes/pull/63495), [@detiber](https://github.com/detiber))