// +optional
  optional string name = 3;

  // UID of the referent.
  // More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids
  // +optional
  optional string uid = 4;

  // API version of the referent.
  // +optional
  optional string apiVersion = 5;

  // Specific resourceVersion to which this reference is made, if any.

* Bumped gRPC version to 1.3.0 ([#51154](https://github.com/kubernetes/kubernetes/pull/51154), [@RenaudWasTaken](https://github.com/RenaudWasTaken))
* Delete load balancers if the UIDs for services don't match. ([#50539](https://github.com/kubernetes/kubernetes/pull/50539), [@brendandburns](https://github.com/brendandburns))

* Bumped gRPC version to 1.3.0 ([#51154](https://github.com/kubernetes/kubernetes/pull/51154), [@RenaudWasTaken](https://github.com/RenaudWasTaken))
* Delete load balancers if the UIDs for services don't match. ([#50539](https://github.com/kubernetes/kubernetes/pull/50539), [@brendandburns](https://github.com/brendandburns))

- The calculation of pod UIDs for static pods has changed to ensure each static pod gets a unique value - this will cause all static pod containers to be recreated/restarted if an in-place kubelet upgrade from 1.20 to 1.21 is performed. Note that draining pods before upgrading...

	// +optional
	Name string `json:"name,omitempty" protobuf:"bytes,3,opt,name=name"`
	// UID of the referent.
	// More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids
	// +optional
	UID types.UID `json:"uid,omitempty" protobuf:"bytes,4,opt,name=uid,casttype=k8s.io/apimachinery/pkg/types.UID"`
	// API version of the referent.
	// +optional

- Change the calculation of pod UIDs so that static pods get a unique value - will cause all containers to be killed and recreated after in-place upgrade. ([#87461](https://github.com/kubernetes/kubernetes/pull/87461), [@bboreham](https://github.com/bboreham)) [SIG Node]