-->
```release-note

```

#### Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://git.k8s.io/enhancements/keps/sig-node/585-runtime-class
message RuntimeClass {
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional

        A proposal that works through the design along with the implications of the change can be opened as a KEP.
        See https://git.k8s.io/enhancements/keps#kubernetes-enhancement-proposals-keps
    validations:
      required: true

  - type: textarea
    id: rationale
    attributes:
      label: Why is this needed?
    validations:

// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://git.k8s.io/enhancements/keps/sig-node/585-runtime-class
message RuntimeClass {
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional

kubernetes/enhancements: [#116](https://github.com/kubernetes/enhancements/issues/116) [[kep](https://github.com/kubernetes/enhancements/blob/master/keps/sig-windows/116-windows-node-support/README.md)]

Updated Plugin Mechanism for kubectl is Graduating to Stable ([#579](https://github.com/kubernetes/enhancements/issues/579))

 
## Changes by Kind

### Deprecation

- #### Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:
  
  <!--
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- The CustomResourcePublishOpenAPI feature is now beta and enabled by default. CustomResourceDefinitions with [structural schemas](https://github.com/kubernetes/enhancements/blob/master/keps/sig-api-machinery/20190425-structural-openapi.md) now publish schemas in the OpenAPI document served at `/openapi/v2`. CustomResourceDefinitions with non-structural schemas have a `NonStructuralSchema` condition added with details about what needs...

Pod with multiple containers can use `kubectl.kubernetes.io/default-container` annotation to have a container preselected for kubectl commands. More can be read in [KEP-2227](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cli/2227-kubectl-default-container/README.md).

### Immutable Secrets and ConfigMaps

  repeated ConfigMap items = 2;
}

// ConfigMapNodeConfigSource contains the information to reference a ConfigMap as a config source for the Node.
// This API is deprecated since 1.22: https://git.k8s.io/enhancements/keps/sig-node/281-dynamic-kubelet-configuration
message ConfigMapNodeConfigSource {
  // Namespace is the metadata.namespace of the referenced ConfigMap.
  // This field is required in all cases.
  optional string namespace = 1;

  ```
  
  #### Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:
  
  <!--
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