- Graduated the `ReadWriteOncePod` feature gate to `GA`. ([#121077](https://github.com/kubernetes/kubernetes/pull/121077), [@chrishenzie](https://github.com/chrishenzie))
- Graduated the following kubelet resource metrics to **general availability**:
  - `container_cpu_usage_seconds_total`
  - `container_memory_working_set_bytes`
  - `container_start_time_seconds`
  - `node_cpu_usage_seconds_total`
  - `node_memory_working_set_bytes`

Kubernetes primitives that our Cluster Federation control plane
supports, expanding the number of approaches taken to multi-cluster
management (beyond our initial Federation approach), and preparing
to release Federation for general availability ('GA').

[SIG Multi-cluster]: https://github.com/kubernetes/community/tree/master/sig-federation

### SIG Node

[SIG Node][] is responsible for the components that support the controlled

*   Azure Load Balancer Auto Mode: Services can be annotated to allow auto selection of available load balancers and to provide specific availability sets that host the load balancers (for example, `service.beta.kubernetes.io/azure-load-balancer-mode=auto|as1,as2...`)

### **CLI**

#### **Kubectl**

- **Admission webhooks:** Admission webhooks are in widespread use as a Kubernetes extensibility mechanism and have been available in beta since the 1.9 release. The 1.16 release marks the graduation of admission webhooks to general availability (GA).

""},{"key":"max_wait","value":""},{"key":"cycle","value":""}]},"site":{"_":[{"key":"name","value":""},{"key":"region","value":""}]},"storage_class":{"_":[{"key":"standard","value":"EC:5"},{"key":"rrs","value":"EC:1"},{"key":"optimize","value":"availability"},{"key":"inline_block","value":""}]},"subnet":{"_":[{"key":"license","value":""},{"key":"api_key","value":""},{"key":"proxy","value":""}]}} multisitea/data/disterasure/xl11/.minio.sys/pool.bin/xl.meta XL2 Æ w Ä$•Ä Ó ÉŸþ¥¹ °Ä ºHØH Å Kƒ¤Type ¥V2ObjÞ...

  - [alpha] ingress has alpha support for a single master multi zone cluster ([docs](http://kubernetes.io/docs/user-guide/ingress.md#failing-across-availability-zones)) ([kubernetes/features#52](https://github.com/kubernetes/enhancements/issues/52))
- **Network**

  the following annotation - `scheduler.alpha.kubernetes.io/critical-pod`
  - This feature should be used in conjunction with the
    [rescheduler](https://kubernetes.io/docs/admin/rescheduler/) to guarantee
    resource availability for critical system pods.
* **[alpha]** `--experimental-nvidia-gpus` flag is replaced by `Accelerators` alpha
  feature gate along with addition of support for multiple Nvidia GPUs.

* Portworx volume driver no longer has to run on the master. ([#45518](https://github.com/kubernetes/kubernetes/pull/45518), [@harsh-px](https://github.com/harsh-px))

* Default behavior in Cinder storageclass is changed. If availability is not specified, the zone is chosen by algorithm. It makes possible to spread stateful pods across many zones. ([#44798](https://github.com/kubernetes/kubernetes/pull/44798), [@zetaab](https://github.com/zetaab))

  // +optional
  optional bool readOnly = 5;

  // kind expected values are Shared: multiple blob disks per storage account  Dedicated: single blob disk per storage account  Managed: azure managed data disk (only in managed availability set). defaults to shared
  optional string kind = 6;
}

// AzureFile represents an Azure File Service mount on the host and bind mount to the pod.
message AzureFilePersistentVolumeSource {

### Other (Bug, Cleanup or Flake)

- Azure: fix concurreny issue in lb creation ([#89604](https://github.com/kubernetes/kubernetes/pull/89604), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]
- Ensure Azure availability zone is always in lower cases. ([#89722](https://github.com/kubernetes/kubernetes/pull/89722), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]