// +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // Range is string that identifies the range represented by 'data'.
  optional string range = 2;

  // Data is a bit array containing all allocated addresses in the previous segment.
  optional bytes data = 3;
}

### Promoted endPort in Network Policy to Stable

Promoted `endPort` in [Network Policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/#targeting-a-range-of-ports) to GA. Network Policy providers that support `endPort` field now can use it to specify a range of ports to apply a Network Policy. Previously, each Network Policy could only target a single port.

* When using IP aliases, use a secondary range rather than subnetwork to reserve cluster IPs. ([#51690](https://github.com/kubernetes/kubernetes/pull/51690), [@bowei](https://github.com/bowei))
* IPAM controller unifies handling of node pod CIDR range allocation. ([#51374](https://github.com/kubernetes/kubernetes/pull/51374), [@bowei](https://github.com/bowei))