* Bump Heapster to v1.6.0-beta.1 ([#67074](https://github.com/kubernetes/kubernetes/pull/67074), [@kawych](https://github.com/kawych))

* Parameter keys in a StorageClass `parameters` map may not use the `kubernetes.io` or `k8s.io` namespaces. ([#41837](https://github.com/kubernetes/kubernetes/pull/41837), [@liggitt](https://github.com/liggitt))

* Created a new `dryRun` query parameter for mutating endpoints. If the parameter is set, then the query will be rejected, as the feature is not implemented yet. This will allow forward compatibility with future clients; otherwise, future clients talking with older apiservers might end up modifying a resource even if they include the `dryRun` query parameter. ([#63557](https://github.com/kubernetes/kubernetes/pull/63557), [@apelisse](https://...

- `diskformat` storage class parameter for in-tree vSphere volume plugin is deprecated as of v1.21 release. Please consider updating storageclass and remove `diskformat` parameter. vSphere CSI Driver does not support diskformat storageclass parameter.
  

* Fixed pod cleanup when /var/lib/kubelet is a symlink. ([#68741](https://github.com/kubernetes/kubernetes/pull/68741), [@jsafrane](https://github.com/jsafrane))
* Add "only_cpu_and_memory" GET parameter to /stats/summary http handler in kubelet. If parameter is true then only cpu and memory will be present in response. ([#67829](https://github.com/kubernetes/kubernetes/pull/67829), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))

administrators will be able to place limits by using the new kubelet command line parameter --pod-max-pids. Note that since this is a alpha feature they will need to enable the "SupportPodPidsLimit" feature. By default, we do not set any maximum limit, If an administrator wants to enable this, they should enable SupportPodPidsLimit=true in the --feature-gates= parameter to kubelet and specify the limit using the --pod-max-pids parameter. The limit set is the total count of all processes running in all containers...

  * You must install the Ceph CSI driver (rbd.csi.ceph.com), v3.5.0 or above, into your Kubernetes cluster.

- Support inflight_events metric in the scheduler for QueueingHint. ([#127052](https://github.com/kubernetes/kubernetes/pull/127052), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling]
- Support specifying a custom network parameter when running e2e-node-tests with the remote option. ([#127574](https://github.com/kubernetes/kubernetes/pull/127574), [@bouaouda-achraf](https://github.com/bouaouda-achraf)) [SIG Node and Testing]

- Deprecated the `--cloud-provider` and `--cloud-config` CLI parameters in kube-apiserver.
  These parameters will be removed in a future release. ([#120903](https://github.com/kubernetes/kubernetes/pull/120903), [@dims](https://github.com/dims)) [SIG API Machinery]

#### Storage