allow a process manager (systemd/kubelet/etc) to react to the problem. Previously the server would log the failure and try again to bind to its configured address:port. ([#42272](https://github.com/kubernetes/kubernetes/pull/42272), [@marun](https://github.com/marun))

* The Prometheus metrics for the kube-apiserver for tracking incoming API requests and latencies now return the subresource label for correctly attributing the type of API call. ([#46354](https://github.com/kubernetes/k...

* Cluster federation servers have changed the location in etcd where federated services are stored, so existing federated services must be deleted and recreated. Before upgrading, export all federated services from the federation...

* [Federation][kubefed]: Use StorageClassName for etcd pvc ([#46323](https://github.com/kubernetes/kubernetes/pull/46323), [@marun](https://github.com/marun))
* Restrict active deadline seconds max allowed value to be maximum uint32 ([#46640](https://github.com/kubernetes/kubernetes/pull/46640), [@derekwaynecarr](https://github.com/derekwaynecarr))

    *   kubefed will no longer be released as part of Kubernetes
    *   The Federation servers will no longer be included in the hyperkube binary and image. ([#53816](https://github.com/kubernetes/kubernetes/pull/53816),[ @marun](https://github.com/marun))

### **Node**

- Fixed the EndpointSlice controller to run without error on a cluster with the OwnerReferencesPermissionEnforcement validating admission plugin enabled. ([#89805](https://github.com/kubernetes/kubernetes/pull/89805), [@marun](https://github.com/marun)) [SIG Auth and Network]

- Fixed the EndpointSlice controller to run without error on a cluster with the OwnerReferencesPermissionEnforcement validating admission plugin enabled. ([#89804](https://github.com/kubernetes/kubernetes/pull/89804), [@marun](https://github.com/marun)) [SIG Auth and Network]

- Fixed the EndpointSlice controller to run without error on a cluster with the OwnerReferencesPermissionEnforcement validating admission plugin enabled. ([#89741](https://github.com/kubernetes/kubernetes/pull/89741), [@marun](https://github.com/marun)) [SIG Auth and Network]
- Fixed the EndpointSliceController to correctly create endpoints for IPv6-only pods.
  
  Fixed the EndpointController to allow IPv6 headless services, if the IPv6DualStack

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