if oldCfg.Immutable != nil && *oldCfg.Immutable {
		if newCfg.Immutable == nil || !*newCfg.Immutable {
			allErrs = append(allErrs, field.Forbidden(field.NewPath("immutable"), "field is immutable when `immutable` is set"))
		}
		if !reflect.DeepEqual(newCfg.Data, oldCfg.Data) {
			allErrs = append(allErrs, field.Forbidden(field.NewPath("data"), "field is immutable when `immutable` is set"))
		}

						ListKind: "listkind2",
					},
					StoredVersions: []string{"version2"},
				},
			},
			errors: []validationMatch{
				immutable("spec", "group"),
				immutable("spec", "scope"),
				immutable("spec", "names", "kind"),
				immutable("spec", "names", "plural"),
			},
		},
		{
			name: "top-level and per-version fields are mutually exclusive",

### Immutable Secrets and ConfigMaps

Immutable Secrets and ConfigMaps graduates to GA. This feature allows users to specify that the contents of a particular Secret or ConfigMap is immutable for its object lifetime. For such instances, Kubelet will not watch/poll for changes and therefore reducing apiserver load.

	// Immutable, if set to true, ensures that data stored in the Secret cannot
	// be updated (only object metadata can be modified).
	// If not set to true, the field can be modified at any time.
	// Defaulted to nil.
	// +optional
	Immutable *bool `json:"immutable,omitempty" protobuf:"varint,5,opt,name=immutable"`

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

  // Immutable, if set to true, ensures that data stored in the ConfigMap cannot
  // be updated (only object metadata can be modified).
  // If not set to true, the field can be modified at any time.
  // Defaulted to nil.
  // +optional
  optional bool immutable = 4;

  // Data contains the configuration data.

type Secret struct {
	metav1.TypeMeta
	// +optional
	metav1.ObjectMeta

	// Immutable field, if set, ensures that data stored in the Secret cannot
	// be updated (only object metadata can be modified).
	// +optional
	Immutable *bool

	// Data contains the secret data. Each key must consist of alphanumeric

	"":           "ConfigMap holds configuration data for pods to consume.",
	"metadata":   "Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata",
	"immutable":  "Immutable, if set to true, ensures that data stored in the ConfigMap cannot be updated (only object metadata can be modified). If not set to true, the field can be modified at any time. Defaulted to nil.",

}

func autoConvert_v1_ConfigMap_To_core_ConfigMap(in *v1.ConfigMap, out *core.ConfigMap, s conversion.Scope) error {
	out.ObjectMeta = in.ObjectMeta
	out.Immutable = (*bool)(unsafe.Pointer(in.Immutable))
	out.Data = *(*map[string]string)(unsafe.Pointer(&in.Data))
	out.BinaryData = *(*map[string][]byte)(unsafe.Pointer(&in.BinaryData))
	return nil
}

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

  // Immutable, if set to true, ensures that data stored in the ConfigMap cannot
  // be updated (only object metadata can be modified).
  // If not set to true, the field can be modified at any time.
  // Defaulted to nil.
  // +optional
  optional bool immutable = 4;

  // Data contains the configuration data.

            "type": "boolean"
          },
          "fsGroupPolicy": {