- `kubeadm`: a separate "super-admin.conf" file is now deployed. The User in `admin.conf` is now bound to a new RBAC Group `kubeadm:cluster-admins` that has `cluster-admin` `ClusterRole` access. The User in `super-admin.conf` is now bound to the `system:masters` built-in super-powers / break-glass Group that can bypass RBAC. Before this change, the default `admin.conf` was bound to `system:masters` Group, which was undesired. Executing `kubeadm init phase...

* Action Required: `kubeadm.k8s.io/v1beta1` has been deprecated, you should update...

### (No, really, you MUST read this before you upgrade)

*   You can now add "options" to the host's /etc/resolv.conf (or --resolv-conf), and they will be copied into pod's resolv.conf when dnsPolicy is Default. Being able to customize options is important because it is common to leverage options to fine-tune the behavior of DNS client. ([#54773](https://github.com/kuberne...

* [stable] The PV spec for Azure File, CephFS, iSCSI, and Glusterfs is modified to reference namespaced resources.

* [stable] You can now customize the iSCSI initiator name per volume in the iSCSI volume plugin.

- the ability to rollback to etcd2 can be preserved by setting the storage media type flag on `kube-apiserver`

  ```
  --storage-media-type application/json
  ```

  to continue to use `application/json` as the storage media type which can be changed to
  `application/vnd.kubernetes.protobuf` at a later time.

## Major updates and release themes

- consumers of the 'certificatesigningrequests/approval' API must now have permission to 'approve' CSRs for the specific signer requested by the CSR. More information on the new signerName field and the required authorization can be found at https://kubernetes.io/docs/reference/access-authn-authz/certificate-signing-requests#authorization...

- Kubelet: a "maxParallelImagePulls" field can now be specified in the kubelet configuration file to control how many image pulls the kubelet can perform in parallel. ([#115220](https://github.com/kubernetes/kubernetes/pull/115220), [@ruiwen-zhao](https://github.com/ruiwen-zhao)) [SIG API Machinery, Node and Scalability]

* kubeadm: fix a possible scenario where kubeadm can pull much newer control-plane images ([#69301](https://github.com/kubernetes/kubernetes/pull/69301), [@neolit123](https://github.com/neolit123))
* test/e2e/e2e.test: ([#69105](https://github.com/kubernetes/kubernetes/pull/69105), [@pohly](https://github.com/pohly))
   * -viper-config can be used to set also the options defined by command line flags

* This change add nonResourceURL to kubectl auth cani ([#46432](https://github.com/kubernetes/kubernetes/pull/46432), [@CaoShuFeng](htt...