*   Make crictl command more user friendly and add more subcommands.
    *   Integrate with CRI verbose option to provide extra debug information.
    *   Update CRI to kubernetes v1.9.
    *   Bug fixes in validation test suites.

### Scheduler
* Add the support to the scheduler for spreading pods of StatefulSets. ([#41708](https://github.com/kubernetes/kubernetes/pull/41708), [@bsalamat](https://github.com/bsalamat))
* Added support to minimize sending verbose node information to scheduler extender by sending only node names and expecting extenders to cache the rest of the node information ([#41119](https://github.com/kubernetes/kubernetes/pull/41119), [@sarat-k](https://github.com/sarat-k))

- API paging is now enabled by default in k8s.io/apiserver recommended options, and in k8s.io/sample-apiserver ([#77278](https://github.com/kubernetes/kubernetes/pull/77278), [@liggitt](https://github.com/liggitt))

- Increased verbose level for local openapi aggregation logs to avoid flooding the log during normal operation ([#75781](https://github.com/kubernetes/kubernetes/pull/75781), [@roycaihw](https://github.com/roycaihw))

- Publishing kube-proxy metrics for Windows kernel-mode ([#106581](https://github.com/kubernetes/kubernetes/pull/106581), [@knabben](https://github.com/knabben))
- Re-adds response status and headers on verbose kubectl responses ([#108505](https://github.com/kubernetes/kubernetes/pull/108505), [@rikatz](https://github.com/rikatz))

* Increased verbose level for local openapi aggregation logs to avoid flooding the log during normal operation ([#75781](https://github.com/kubernetes/kubernetes/pull/75781), [@roycaihw](https://github.com/roycaihw))