* 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 server and delete the services. After upgrading the cluster, recreate the federated services from the exported data. ([#37770](https://github.com/kubernetes/kubernetes/pull/37770), [@enj](https://github.com/enj))

- Headless Services with no selector which were created without dual-stack enabled will be defaulted to RequireDualStack instead of PreferDualStack.  This is consistent with such Services which are created with dual-stack enabled. ([#104986](https://github.com/kubernetes/kubernetes/pull/104986), [@thockin](https://github.com/thockin)) [SIG Network]

* The `--bootstrap-kubeconfig` argument to Kubelet previously created the first bootstrap client credentials in the certificates directory as `kubelet-client.key` and `kubelet-client.crt`.  Subsequent certificates created by cert rotation were created in a combined PEM file that was atomically rotated as `kubelet-client-DATE.pem` in that directory, which meant clients relying on the `node.kubeconfig` generated...

* Fixes an issue with kubelet-reported pod status on deleted/recreated pods. ([#86320](https://github.com/kubernetes/kubernetes/pull/86320), [@liggitt](https://github.com/liggitt))

- Fixed: during the kube-controller-manager restart, when the corresponding Endpoints resource was manually deleted and recreated, causing the endpointslice to fail to be created normally. ([#125359](https://github.com/kubernetes/kubernetes/pull/125359), [@yangjunmyfm192085](https://github.com/yangjunmyfm192085)) [SIG Apps and Network]

  // +optional
  optional int64 observedGeneration = 1;

  // replicas is the number of Pods created by the StatefulSet controller.
  optional int32 replicas = 2;

  // readyReplicas is the number of pods created for this StatefulSet with a Ready Condition.
  optional int32 readyReplicas = 3;

  // currentReplicas is the number of Pods created by the StatefulSet controller from the StatefulSet version
  // indicated by currentRevision.

  optional int64 observedGeneration = 1;

  // replicas is the number of Pods created by the StatefulSet controller.
  optional int32 replicas = 2;

  // readyReplicas is the number of pods created by this StatefulSet controller with a Ready Condition.
  optional int32 readyReplicas = 3;

  // currentReplicas is the number of Pods created by the StatefulSet controller from the StatefulSet version
  // indicated by currentRevision.

  optional int64 observedGeneration = 1;

  // replicas is the number of Pods created by the StatefulSet controller.
  optional int32 replicas = 2;

  // readyReplicas is the number of pods created by this StatefulSet controller with a Ready Condition.
  optional int32 readyReplicas = 3;

  // currentReplicas is the number of Pods created by the StatefulSet controller from the StatefulSet version
  // indicated by currentRevision.

    ```
    * PV creation Logs:

  // +listType=atomic
  // +optional
  repeated IngressPortStatus ports = 4;
}

// LoadBalancerStatus represents the status of a load-balancer.
message IngressLoadBalancerStatus {
  // Ingress is a list containing ingress points for the load-balancer.
  // +optional
  repeated IngressLoadBalancerIngress ingress = 1;
}