- kubeadm will now not fail preflight checks when running on >= 5.0 Linux kernel ([#74355](https://github.com/kubernetes/kubernetes/pull/74355), [@brb](https://github.com/brb))

- Handle Windows named pipes in host mounts. ([#69484](https://github.com/kubernetes/kubernetes/pull/69484), [@ddebroy](https://github.com/ddebroy))
- Fixed inconsistency in windows kernel proxy when updating HNS policy. ([#68923](https://github.com/kubernetes/kubernetes/pull/68923), [@delulu](https://github.com/delulu))

##  External Dependencies

  * Upgrade Node Problem Detector to v0.4.1. New features added:

    * Add /dev/kmsg support for kernel log parsing. ([#112](https://github.com/kubernetes/node-problem-detector/pull/112), [@euank](https://github.com/euank))

* Get windows kernel version directly from registry rather than windows.getVersion(). ([#58498](https://github.com/kubernetes/kubernetes/pull/58498), [@feiskyer](https://github.com/feiskyer))

- kubeadm: implement support for concurrent add/remove of stacked etcd members ([#79677](https://github.com/kubernetes/kubernetes/pull/79677), [@neolit123](https://github.com/neolit123))
- kubeadm: support any Linux kernel version newer than 3.10 ([#81623](https://github.com/kubernetes/kubernetes/pull/81623), [@neolit123](https://github.com/neolit123))

- Changes behaviour of kube-proxy start; does not attempt to set specific `sysctl` values (which does not work in recent Kernel versions anymore in non-init namespaces), when the current sysctl values are already set higher. ([#103174](https://github.com/kubernetes/kubernetes/pull/103174), [@Napsty](https://github.com/Napsty))

- Clarified the CFS quota as 100ms in the code comments and set the minimum `cpuCFSQuotaPeriod` to 1ms to match Linux kernel expectations. ([#112123](https://github.com/kubernetes/kubernetes/pull/112123), [@paskal](https://github.com/paskal))

- Publishing kube-proxy metrics for Windows kernel-mode ([#106581](https://github.com/kubernetes/kubernetes/pull/106581), [@knabben](https://github.com/knabben))

### SIG Network

The main milestones for SIG Network this release are the graduation of IPVS-based load balancing and CoreDNS to general availability.

IPVS is an alternative approach to in-cluster load balancing that uses in-kernel hash tables rather than the previous iptables approach, while CoreDNS is a replacement for kube-dns for service discovery.

### SIG Node

Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form.  A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.