#### Which issue(s) this PR fixes:
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Fixes #

#### Special notes for your reviewer:

#### Does this PR introduce a user-facing change?
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* GCE: A role and clusterrole will now be provided with GCE/GKE for allowing the cloud-provider to post warning events on all services and watching configmaps in the kube-system namespace. No user action is required. ([#59686](https://github.com/kubernetes/kubernetes/pull/59686), [@nicksardo](https://github.com/nicksardo))

- OpenAPI spec and API reference now reflect dryRun query parameter for POST/PUT/PATCH operations ([#69359](https://github.com/kubernetes/kubernetes/pull/69359), [@roycaihw](https://github.com/roycaihw))

*   The canonical pronunciation of kubectl is "cube control".
*   Added --raw to kubectl create to POST using the normal transport. ([#54245](https://github.com/kubernetes/kubernetes/pull/54245),[ @deads2k](https://github.com/deads2k))

- Kubeadm: fix a bug where post upgrade to 1.18.x, nodes cannot join the cluster due to missing RBAC ([#89537](https://github.com/kubernetes/kubernetes/pull/89537), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

* Allow remote admission controllers to be dynamically added and removed by administrators.  External admission controllers make an HTTP POST containing details of the requested action which the service can approve or reject. ([#46388](https://github.com/kubernetes/kubernetes/pull/46388), [@lavalamp](https://github.com/lavalamp))

- Fix incorrectly report scope for request_duration_seconds and request_slo_duration_seconds metrics for POST custom resources API calls. ([#110009](https://github.com/kubernetes/kubernetes/pull/110009), [@azylinski](https://github.com/azylinski)) [SIG Instrumentation]

- Pods will now post their readiness during termination. ([#110418](https://github.com/kubernetes/kubernetes/pull/110418), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]

### Dockershim deprecation

Docker as an underlying runtime is being deprecated. Docker-produced images will continue to work in your cluster with all runtimes, as they always have.
The Kubernetes community [has written a blog post about this in detail](https://blog.k8s.io/2020/12/02/dont-panic-kubernetes-and-docker/) with [a dedicated FAQ page for it](https://blog.k8s.io/2020/12/02/dockershim-faq/).

### External credential provider for client-go

- Kubeadm: ensure `image-pull-timeout` flag is respected during upgrade phase ([#90328](https://github.com/kubernetes/kubernetes/pull/90328), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]
- Kubeadm: fix a bug where post upgrade to 1.18.x, nodes cannot join the cluster due to missing RBAC ([#89537](https://github.com/kubernetes/kubernetes/pull/89537), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]