- The /configz endpoint of kubelet, scheduler, cloud controller manager, and kube-proxy serializes the APIVersion and Kind fields as well as using public types instead of internal. ([#136044](https://github.com/kubernetes/kubernetes/pull/136044), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev)) [SIG API Machinery, Cloud Provider, Cluster Lifecycle, Network,...

      Federations can be configured by settings the "federations" field to the value currently
      set in the command line.
    * Example:
      ```yaml
      kind: ConfigMap
      apiVersion: v1
      metadata:
        name: kube-dns
        namespace: kube-system
      data:
        federations: abc=def
      ```