### **Cluster Lifecycle**

*   You must either specify the `--discovery-token-ca-cert-hash` flag to `kubeadm join`, or opt out of the CA pinning feature using `--discovery-token-unsafe-skip-ca-verification`.
*   The default `auto-detect` behavior of the kubelet's `--cloud-provider` flag is removed.

* Fix a typo in prometheus-to-sd configuration, that drops some stackdriver metrics. ([#56473](https://github.com/kubernetes/kubernetes/pull/56473), [@loburm](https://github.com/loburm))
* Fixes server name verification of aggregated API servers and webhook admission endpoints ([#56415](https://github.com/kubernetes/kubernetes/pull/56415), [@liggitt](https://github.com/liggitt))

* add GRS, RAGRS storage account type support for azure disk ([#55931](https://github.com/kubernetes/kubernetes/pull/55931), [@andyzhangx](https://github.com/andyzhangx))
* Fixes server name verification of aggregated API servers and webhook admission endpoints ([#56415](https://github.com/kubernetes/kubernetes/pull/56415), [@liggitt](https://github.com/liggitt))

container images and the list of authentication information that leads to their successful pulls. This data is persisted across reboots of the host and restarts of the kubelet.
  
  The kubelet ensures any image requiring credential verification is always pulled if authentication information from an image pull is not yet present, thus enforcing authentication / re-authentication. This means an image pull might be attempted even in cases where a pod requests the `IfNotPresent` image pull...

- Added support in the kubelet's image pull credential tracking for service account-based verification. When an image was pulled using service account credentials via external credential providers, subsequent Pods using the same service account (UID, name, and namespace) could access the cached image without re-authentication for the lifetime of...

* new dhcp-domain parameter to be used for figuring out the hostname of a node ([#61890](https://github.com/kubernetes/kubernetes/pull/61890), [@dims](https://github.com/dims))
* Disable ipamperf integration tests as part of every PR verification. ([#61863](https://github.com/kubernetes/kubernetes/pull/61863), [@satyasm](https://github.com/satyasm))

      - `kubelet_imagemanager_ondisk_pulledrecords` for tracking pulled image records on disk
      - `kubelet_imagemanager_image_mustpull_checks_total{result}` for counting image must-pull verification checks. ([#132812](https://github.com/kubernetes/kubernetes/pull/132812), [@stlaz](https://github.com/stlaz)) [SIG Auth and Node]

- Kubeadm: http://git.k8s.io/enhancements/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md...

- The CSI driver-registrar external sidecar container v1.0.0-rc2 is known to take up to 1 minute to start in some cases. We expect this issue to be resolved in a future release of the sidecar container. For verification, please see the release notes of future releases of the external sidecar container. ([#76](https://github.com/kubernetes-csi/driver-registrar/issues/76))

- Node Problem Detector is now available for GCE Windows nodes. ([#101539](https://github....