- kube-scheduler dropped support for configuration files with apiVersion `componentconfig/v1alpha1`. Ensure kube-scheduler is configured using command-line flags or a configuration file with apiVersion `kubescheduler.config.k8s.io/v1alpha1` before upgrading to 1.13.
- kubectl

KubeProxyConfiguration Before:

```
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
**featureGates: "SupportIPVSProxyMode=true"**
```

KubeProxyConfiguration After:

```
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
**featureGates:**
**  SupportIPVSProxyMode: true**

{{- if eq .Values.mode "standalone" }}
{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: {{ template "minio.fullname" . }}
  labels:
    app: {{ template "minio.name" . }}
    chart: {{ template "minio.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
  {{- if .Values.persistence.annotations }}

		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "APIVersion":
			z.APIVersion, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "APIVersion")
				return
			}
		case "Flags":
			var zb0002 uint32
			zb0002, err = dc.ReadMapHeader()
			if err != nil {

    * Action required: The following clusterrole and clusterrolebinding should be applied:
    ```
         kind: List
         apiVersion: v1
         items:
         - apiVersion: rbac.authorization.k8s.io/v1
           kind: ClusterRole
           metadata:
             labels:
               kubernetes.io/cluster-service: "true"

  - `response.patch` and `response.patchType` are not permitted from validating admission webhooks
  - `apiVersion: "admission.k8s.io/v1"` is required
  - `kind: "AdmissionReview"` is required

      Federations can be configured by settings the "federations" field to the value currently
      set in the command line.
    * Example:
      ```yaml
      kind: ConfigMap
      apiVersion: v1
      metadata:
        name: kube-dns
        namespace: kube-system
      data:
        federations: abc=def
      ```

- Fixed an issue with missing `apiVersion/kind` in object data sent to admission webhooks ([#74448](https://github.com/kubernetes/kubernetes/pull/74448), [@liggitt](https://github.com/liggitt))

    ```yaml
    kind: NetworkPolicy
    apiVersion: networking.k8s.io/v1
    metadata:
      name: default-deny
    spec:
      podSelector:
    ```

  * The audit log file defaults to JSON encoding when using the advanced auditing feature gate.
  * An audit policy file without either an `apiVersion` or a `kind` field may be treated as invalid.
  * The webhook and log file now output the `v1beta1` event format.