* Added the `kubeadm upgrade diff` command to show how static pod manifests will be changed by an upgrade. This command shows the changes that will be made to the static pod manifests before applying them. This is a narrower case than kubeadm upgrade apply --dry-run, which specifically focuses on the static pod manifests. ([#63930](https://github.com/kubernetes/kubernetes/pull/63930), [@liztio](https://github.com/liztio))

- Restores priority of static control plane pods in the cluster/gce/manifests control-plane manifests ([#89970](https://github.com/kubernetes/kubernetes/pull/89970), [@liggitt](https://github.com/liggitt)) [SIG Cluster Lifecycle and Node]

### Other (Cleanup or Flake)

- Restores priority of static control plane pods in the cluster/gce/manifests control-plane manifests ([#89970](https://github.com/kubernetes/kubernetes/pull/89970), [@liggitt](https://github.com/liggitt)) [SIG Cluster Lifecycle and Node]

### Other (Cleanup or Flake)

- Restores priority of static control plane pods in the cluster/gce/manifests control-plane manifests ([#89970](https://github.com/kubernetes/kubernetes/pull/89970), [@liggitt](https://github.com/liggitt)) [SIG Cluster Lifecycle and Node]


# v1.18.1

[Documentation](https://docs.k8s.io)

rnetes/kubernetes/pull/57926), [@wwwtyro](https://github.com/wwwtyro))

* Check for known manifests during preflight instead of only checking for non-empty manifests directory. This makes the preflight checks less heavy-handed by specifically checking for well-known files (kube-apiserver.yaml, kube-controller-manager.yaml, kube-scheduler.yaml, etcd.yaml) in /etc/kubernetes/manifests instead of simply checking for a non-empty directory. ([#57287](https://github.com/kubernetes/kubernetes/pull/57287),...

- Fixed architecture within manifest for non `amd64` etcd images. ([#104116](https://github.com/kubernetes/kubernetes/pull/104116), [@saschagrunert](https://github.com/saschagrunert))
- Fixed architecture within manifest for non `amd64` etcd images. ([#105484](https://github.com/kubernetes/kubernetes/pull/105484), [@saschagrunert](https://github.com/saschagrunert))

- The deprecated Kubelet flag `--allow-privileged` has been removed. Remove any use of the flag from your kubelet scripts or manifests. ([#77820](https://github.com/kubernetes/kubernetes/pull/77820), [@dims](https://github.com/dims))

- Kubernetes is now built with Go `v1.21.3`. ([#121149](https://github.com/kubernetes/kubernetes/pull/121149), [@cpanato](https://github.com/cpanato))
- List of metric labels can now be configured by supplying a manifest using the `--allow-metric-labels-manifest` flag. ([#118299](https://github.com/kubernetes/kubernetes/pull/118299), [@rexagod](https://github.com/rexagod))

* kube-controller-manager: fixed issue display help for the deprecated insecure --port flag ([#71601](https://github.com/kubernetes/kubernetes/pull/71601), [@liggitt](https://github.com/liggitt))
* Update Cluster Autoscaler version in gce manifests to 1.13.1 (https://github.com/kubernetes/autoscaler/releases/tag/cluster-autoscaler-1.13.1) ([#71842](https://github.com/kubernetes/kubernetes/pull/71842), [@losipiuk](https://github.com/losipiuk))

- Defining minimum required documentation from each cloud provider which includes (in collaboration with SIG Docs):
  - example manifests for the kube-apiserver, kube-controller-manager, kube-schedule, kubelet, and the cloud-controller-manager
  - labels/annotations that are consumed by any cloud specific controllers