- Remove alpha `CSIMigrationXXComplete` flag and add alpha `InTreePluginXXUnregister` flag. Deprecate `CSIMigrationvSphereComplete` flag and it will be removed in v1.22. ([#98243](https://github.com/kubernetes/kubernetes/pull/98243), [@Jiawei0227](https://github.com/Jiawei0227))

  // Deprecated: Previously used to specify the source of the node's configuration for the DynamicKubeletConfig feature. This feature is removed.
  // +optional
  optional NodeConfigSource configSource = 6;

  // Deprecated. Not all kubelets will set this field. Remove field after 1.13.
  // see: https://issues.k8s.io/61966
  // +optional
  optional string externalID = 2;
}

* Alpha annotation for PersistentVolume node affinity has been removed.  Update your PersistentVolumes to use the beta PersistentVolume.nodeAffinity field before upgrading to this release. ([#61816](https://github.com/kubernetes/kubernetes/pull/61816), [@wackxu
](https://github.com/wackxu))

#### Removed Deprecations

- Kubeadm: perform additional dockershim cleanup. Treat all container runtimes as remote by using the flag "--container-runtime=remote", given dockershim was removed in 1.24 and given kubeadm 1.25 supports a kubelet version of 1.24 and 1.25. The flag "--network-plugin" will no longer be used for new clusters. Stop cleaning up the following dockershim related directories on...

- Removed GA ServiceNodePortStaticSubrange feature gate. ([#124738](https://github.com/kubernetes/kubernetes/pull/124738), [@xuzhenglun](https://github.com/xuzhenglun))

- The CSINodeInfo feature gate is deprecated and will be removed in a future release. The storage.k8s.io/v1beta1 CSINode object is deprecated and will be removed in a future release. ([#83474](https://github.com/kubernetes/kubernetes/pull/83474), [@msau42](https://github.com/msau42))

- Kubeadm: make sure that `kubeadm...

- kube-controller-manager
  - The deprecated `--insecure-experimental-approve-all-kubelet-csrs-for-group` flag has been removed.
- kubelet

- Kubeadm: remove the usage of the --container-runtime=remote flag for the kubelet during kubeadm init/join/upgrade. The flag value "remote" has been the only possible value since dockershim was removed from the kubelet. ([#112...

- Remove `kubernetes.io/grpc` standard appProtocol ([#116866](https://github.com/kubernetes/kubernetes/pull/116866), [@LiorLieberman](https://github.com/LiorLieberman)) [SIG API Machinery and Apps]