- `apiserver_encryption_config_controller_automatic_reload_failures_total`: Total number of failed automatic reloads of encryption configuration.
  - `apiserver_encryption_config_controller_automatic_reload_success_total`: Total number of successful automatic reloads of encryption configuration.

- kubeadm: stop setting UID in the kubelet ConfigMap ([#66341](https://github.com/kubernetes/kubernetes/pull/66341), [@runiq](https://github.com/runiq))
- bazel deb package bugfix: The kubeadm deb package now reloads the kubelet after installation ([#65554](https://github.com/kubernetes/kubernetes/pull/65554), [@rdodev](https://github.com/rdodev))

- Fixes regression in logging spurious stack traces when proxied connections are closed by the backend ([#82588](https://github.com/kubernetes/kubernetes/pull/82588), [@liggitt](https://github.com/liggitt))
- Kube-apiserver now reloads serving certificates from disk every minute to allow rotation without restarting the server process ([#84200](https://github.com/kubernetes/kubernetes/pull/84200), [@jackkleeman](https://github.com/jackkleeman))

* `cluster/gke` has been removed. GKE end-to-end testing should be done using `kubetest --deployment=gke` ([#50338](https://github.com/kubernetes/kubernetes/pull/50338), [@zmerlynn](https://github.com/zmerlynn))
* kubeadm: Upload configuration used at 'kubeadm init' time to ConfigMap for easier upgrades ([#50320](https://github.com/kubernetes/kubernetes/pull/50320), [@luxas](https://github.com/luxas))

- Kubeadm: do not upload kubelet patch configuration into `kube-system/kubelet-config` ConfigMap ([#123106](https://github.com/kubernetes/kubernetes/pull/123106), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

## Dependencies

* Container runtime daemon (e.g. dockerd) logs in GCE cluster will be uploaded to stackdriver and elasticsearch with tag `container-runtime`. ([#59103](https://github.com/kubernetes/kubernetes/pull/59103), [@Random-Liu](https://github.com/Random-Liu))

* kubeadm: Fix pause image to not use architecture, as it is a manifest list ([#65920](https://github.com/kubernetes/kubernetes/pull/65920), [@dims](https://github.com/dims))
* bazel deb package bugfix: The kubeadm deb package now reloads the kubelet after installation ([#65554](https://github.com/kubernetes/kubernetes/pull/65554), [@rdodev](https://github.com/rdodev))

- kube-apiserver now reloads the `--authorization-config` file when it changes. Reloads increment the `apiserver_authorization_config_controller_automatic_reload_last_timestamp_seconds` timestamp metric, with `status="success"` for successful reloads and `status="failed"` for failed reloads. Failed reloads keep using the previously loaded authorization configuration.

  - `kubeadm config upload` has been deprecated, as its replacement is now graduated. Please use `kubeadm init phase upload-config` instead. ([#77946](https://github.com/kubernetes/kubernetes/pull/77946), [@Klaven](htt...

- It is now possible to upload certificates required to join a new control-plane to kubeadm-certs secret using the flag `--experimental-upload-certs` on `init` or upload-certs phase. ([#73907](https://github.com/kubernetes/kubernetes/pull/73907), [@yagonobre](https://github.com/yagonobre))