For the 1.8 release, SIG Node continued to focus
on a broad set of workload types, including hardware and performance
sensitive workloads such as data analytics and deep learning. The SIG also
delivered incremental improvements to node reliability.

[SIG Node]: https://github.com/kubernetes/community/tree/master/sig-node

### SIG Network

[SIG Network][] is responsible for networking components, APIs, and plugins in Kubernetes.

    - [Cluster-wide seccomp defaults](#cluster-wide-seccomp-defaults)
    - [Quality of Service for memory resources](#quality-of-service-for-memory-resources)
    - [API changes and improvements for ephemeral containers](#api-changes-and-improvements-for-ephemeral-containers)
  - [Known Issues](#known-issues)

* Don't log private SSH key ([#24506](https://github.com/kubernetes/kubernetes/pull/24506), [@timstclair](https://github.com/timstclair))
* Incremental improvements to kubelet e2e tests ([#24426](https://github.com/kubernetes/kubernetes/pull/24426), [@pwittrock](https://github.com/pwittrock))

- Performance improvements in `klog` ([#115277](https://github.com/kubernetes/kubernetes/pull/115277), [@pohly](https://github.com/pohly))

  - StatefulSets are beta now (fixes and stabilization)
- Improved Federation Support
  - New command: `kubefed`
  - DaemonSets
  - Deployments
  - ConfigMaps
- Simplified Cluster Deployment
  - Improvements to `kubeadm`
  - HA Setup for Master
- Node Robustness and Extensibility
  - Windows Server Container support
  - CRI for pluggable container runtimes
  - `kubelet` API supports authentication and authorization

      - [Deprecated/changed metrics](#deprecated/changed-metrics)
    - [Notable Features](#notable-features)
      - [Beta](#beta)
      - [Alpha](#alpha)
      - [CLI Improvements](#cli-improvements)
      - [Misc](#misc)
    - [API Changes](#api-changes)
    - [Other notable changes](#other-notable-changes-5)
      - [API Machinery](#api-machinery)
      - [Apps](#apps)
      - [Auth](#auth)

    - [CSIDriver policy for FSGroup graduates to Beta](#csidriver-policy-for-fsgroup-graduates-to-beta)
    - [Security Improvements for CSI Drivers (Alpha)](#security-improvements-for-csi-drivers-alpha)
    - [Introducing Graceful Node Shutdown (Alpha)](#introducing-graceful-node-shutdown-alpha)
    - [Runtime log sanitation](#runtime-log-sanitation)

    // javax.net.ssl.SSLHandshakeException: No new session is allowed and no existing
    // session can be resumed
    //
    // Report https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8264944
    // Sessions improvement https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8245576
    if (!platform.isJdk9() && !platform.isOpenJsse() && !platform.isJdk8Alpn()) {
      reuseSession = true
    }

It has been more than two years since the Linux kernel cgroups v2 API was declared stable. With some distributions now defaulting to this API, Kubernetes must support it to continue operating on those distributions. cgroups v2 offers several improvements over cgroups v1, for more information see the [cgroups v2](https://kubernetes.io/docs/concepts/architecture/cgroups/) documentation. While cgroups v1 will continue to be supported, this enhancement puts Kubernetes to be ready for eventual deprecation...

		* Fixed the output of kubectl taint node command with minor improvements. ([#43171](https://github.com/kubernetes/kubernetes/pull/43171), [@ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))


### **Networking**
#### Network Policy