### Windows

This release continues to enable more existing features on Windows, including container CPU resources, image filesystem stats, and flexvolumes. It also adds Windows service control manager support and experimental support for Hyper-V isolation of single-container pods.

### OpenStack

* - Disable thin_ls due to excessive iops ([#43113](https://github.com/kubernetes/kubernetes/pull/43113), [@dashpole](https://github.com/dashpole))
    * - Ignore .mount cgroups, fixing dissappearing stats
    * - Fix wc goroutine leak
    * - Update aws-sdk-go dependency to 1.6.10

- Added support for `PodAndContainerStatsFromCRI` feature gate, which allows a user to specify their pod stats must also come from the CRI, not `cAdvisor`. ([#103095](https://github.com/kubernetes/kubernetes/pull/103095), [@haircommander](https://github.com/haircommander))

- Changed kubelet logs from `error` to `info` for uncached partitions when using CRI stats provider. ([#100448](https://github.com/kubernetes/kubernetes/pull/100448), [@saschagrunert](https://github.com/saschagrunert))

* Windows container configuration in CRI is now considered beta ([ref](https://github.com/kubernetes/enhancements/issues/547))
* CRI logging and stats are now considered beta ([ref](https://github.com/kubernetes/enhancements/issues/552))

- Added support for pod `hostNetwork` field selector ([#110477](https://github.com/kubernetes/kubernetes/pull/110477), [@halfcrazy](https://github.com/halfcrazy)) [SIG Apps and Node]
- Added swap to stats to Summary API and Prometheus endpoints (stats/summary and /metrics/resource). ([#118865](https://github.com/kubernetes/kubernetes/pull/118865), [@iholder101](https://github.com/iholder101))

- Potentially breaking change - Updating the polling interval for Windows stats collection from 1 second to 10 seconds ([#116546](https://github.com/kubernetes/kubernetes/pull/116546), [@marosset](https://github.com/marosset)) [SIG Node and Windows]

  E0303 17:25:03.436781 63839 summary_sys_containers.go:47] Failed to get system container stats for "/docker": failed to get cgroup stats for "/docker": failed to get container info for "/docker": unknown container "/docker"

* Bumped Heapster version to 1.4.1: ([#50642](https://github.com/kubernetes/kubernetes/pull/50642), [@piosz](https://github.com/piosz))
    * handle gracefully problem when kubelet reports duplicated stats for the same container (see [#47853](https://github.com/kubernetes/kubernetes/pull/47853)) on Heapster side
    * fixed bugs and improved performance in Stackdriver Sink

- Kubelet/stats: set INFO log level for stats not found in cadvisor memory cache error. ([#125656](https://github.com/kubernetes/kubernetes/pull/125656), [@gyuho](https://github.com/gyuho))