- The following deprecated metrics are removed, please convert to the corresponding metrics:

  * `daemonset-lookup-cache-size`

  Don't use these flags. Using deprecated flags causes the server to print a warning. Using a removed flag causes the server to abort the startup.

* The following deprecated flags were removed from `kubelet`:

  * `api-servers` - add apiserver addresses to the kubeconfig file instead.

## Deprecations and Removals
- `kubeadm.k8s.io/v1beta1` has been deprecated, you should update your config to use newer non-deprecated API versions. ([#83276](https://github.com/kubernetes/kubernetes/pull/83276), [@Klaven](https://github.com/Klaven))

- Kubeadm: The Alpha feature-gates HighAvailability, SelfHosting, CertsInSecrets are now deprecated, and will be removed in k8s v1.13.0.
- The cloudstack and ovirt controllers have been deprecated and will be removed in a future version. ([#68199](https://github.com/kubernetes/kubernetes/pull/68199), [@dims](https://github.com/dims))

 - CephFS volume plugin (`kubernetes.io/cephfs`) has been deprecated in this release and will be removed in a subsequent release. The alternative is to use the CephFS CSI driver (https://github.com/ceph/ceph-csi/) in your Kubernetes cluster. ([#118143](https://github.com/kubernetes/kubernetes/pull/118143), [@humblec](https://github.com/humblec))
 - Deprecated support for CSI migration of `Ceph RBD volumes`. Users who were relying on Kubernetes' ability

- Several flags related to the deprecated dockershim which are present in the kubelet command line are now deprecated. ([#98730](https://github.com/kubernetes/kubernetes/pull/98730), [@dims](https://github.com/dims)) [SIG Node]

    * Remove deprecated ContainerVM support from GCE kube-up.  ([#58247](https://github.com/kubernetes/kubernetes/pull/58247), [@mikedanese](https://github.com/mikedanese))

    * Remove deprecated kube-push.sh functionality.  ([#58246](https://github.com/kubernetes/kubernetes/pull/58246), [@mikedanese](https://github.com/mikedanese))

## Deprecations

This section provides an overview of deprecated API versions, options, flags, and arguments. Deprecated means that we intend to remove the capability from a future release. After removal, the capability will no longer work. The sections are organized by SIGs.

### **API Machinery**

  - The deprecated `--etcd-quorum-read` flag has been removed. Quorum reads are now always enabled when fetching data from etcd. Remove the `--etcd-quorum-read` flag from kube-apiserver invocations before upgrading.
- kube-controller-manager
  - The deprecated `--insecure-experimental-approve-all-kubelet-csrs-for-group` flag has been removed.
- kubelet

koffManager` and `wait.NewJitteringBackoffManager` functions have been marked as deprecated.  Callers should switch to using the `Backoff{...}.DelayWithReset(clock, resetInterval)` method and must set the `Steps` field when using `Factor`. As a short term change, callers may use the `Timer()` method on the `BackoffManager` until the backoff managers are deprecated and removed. Please see the godoc of the deprecated functions for examples of how to replace usage of this function. ([#107826](https...