metadata:
    name: "servicecidrs.default"
  spec:
    failurePolicy: Fail
    matchConstraints:
      resourceRules:
      - apiGroups:   ["networking.k8s.io"]
        apiVersions: ["v1","v1beta1"]
        operations:  ["CREATE", "UPDATE"]
        resources:   ["servicecidrs"]
    matchConditions:
    - name: 'exclude-default-servicecidr'

- Added `optionalOldSelf` to `x-kubernetes-validations` to support ratcheting CRD schema constraints. ([#121034](https://github.com/kubernetes/kubernetes/pull/121034), [@alexzielenski](https://github.com/alexzielenski))
- Added a new `ServiceCIDR` type that allows to dynamically configure the cluster range used to allocate `Service ClusterIPs` addresses. ([#116516](https://github.com/kubernetes/kubernetes/pull/116516), [@aojea](https://github.com/aojea))

- kube-proxy initialization waits for all pre-sync events from node and serviceCIDR informers to be delivered. ([#126561](https://github.com/kubernetes/kubernetes/pull/126561), [@wedaly](https://github.com/wedaly)) [SIG Network]