- Add flag --lease-reuse-duration-seconds for kube-apiserver to config etcd lease reuse duration. ([#97009](https://github.com/kubernetes/kubernetes/pull/97009), [@lingsamuel](https://github.com/lingsamuel)) [SIG API Machinery and Scalability]

- Adding option for `kubectl cp` to resume on network errors until completion, requires tar in addition to tail inside the container image ([#104792](https://github.com/kubernetes/kubernetes/pull/104792), [@matthyx](https://github.com/matthyx))

  repeated ContainerStatus ephemeralContainerStatuses = 13;

  // Status of resources resize desired for pod's containers.
  // It is empty if no resources resize is pending.
  // Any changes to container resources will automatically set this to "Proposed"
  // +featureGate=InPlacePodVerticalScaling
  // +optional
  optional string resize = 14;
}

- Reduce default NodeStatusReportFrequency to 5 minutes. With this change, periodic node status updates will be send every 5m if node status doesn't change (otherwise they are still send with 10s).

kubernetes/enhancements: [#116](https://github.com/kubernetes/enhancements/issues/116) [[kep](https://github.com/kubernetes/enhancements/blob/master/keps/sig-windows/116-windows-node-support/README.md)]

Updated Plugin Mechanism for kubectl is Graduating to Stable ([#579](https://github.com/kubernetes/enhancements/issues/579))

- [API Server Network Proxy](https://github.com/kubernetes/enhancements/blob/master/keps/sig-api-machinery/1281-network-proxy/README.md) going alpha in 1.16.
- [Extensions](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cloud-provider/991-cloud-controller-migration/README.md) for Cloud Controller Manager Migration.

- Fix pull image error from multiple ACRs using azure managed identity ([#96355](https://github.com/kubernetes/kubernetes/pull/96355), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]
- Fix: resize Azure disk issue when it's in attached state ([#96705](https://github.com/kubernetes/kubernetes/pull/96705), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]

- Fix a bug that Pods could stuck in the unschedulable pod pool 
  if they're rejected by PreEnqueue plugins that could change its result by a change in resources apart from Pods.
  
  DRA plugin is the only plugin that meets the criteria of the bug in in-tree, 
  and hence if you have `DynamicResourceAllocation` feature flag enabled, 

    * Disable the metadata agent for monitored resource construction in logging.
    * Disable timestamp adjustment in logs to optimize performance.
    * Reduce logging agent buffer chunk limit to 512k to optimize performance.

## Urgent Upgrade Notes 

### (No, really, you MUST read this before you upgrade)