* sysctl support is now considered beta ([ref](https://github.com/kubernetes/enhancements/issues/34))
* Support for Azure Virtual Machine Scale Sets is now considered beta. ([ref](https://github.com/kubernetes/enhancements/issues/513))
* Azure support for Cluster Autoscaler is now considered beta. ([ref](https://github.com/kubernetes/enhancements/issues/514))

### **Network**

#### **IPv6**

*   [alpha] IPv6 support has been added. Notable IPv6 support details include:
    *   Support for IPv6-only Kubernetes cluster deployments. **<span style="text-decoration:underline;">Note:</span>** This feature does not provide dual-stack support.
    *   Support for IPv6 Kubernetes control and data planes.
    *   Support for Kubernetes IPv6 cluster deployments using kubeadm.

* vSphere cloud provider: vSphere Storage policy Support for dynamic volume provisioning ([#46176](https://github.com/kubernetes/kubernetes/pull/46176), [@BaluDontu](https://github.com/BaluDontu))
* Add support for emitting metrics from openstack cloudprovider about storage operations. ([#46008](https://github.com/kubernetes/kubernetes/pull/46008), [@NickrenREN](https://github.com/NickrenREN))

    * kubectl `--user` and `--cluster` now support completion ([#44251](https://github.com/kubernetes/kubernetes/pull/44251), [@superbrothers](https://github.com/superbrothers))

    * `kubectl config use-context` now supports completion ([#42336](https://github.com/kubernetes/kubernetes/pull/42336), [@superbrothers](https://github.com/superbrothers))

  * [alpha] CRI now supports specifying the GID of the container at both LinuxSandboxSecurityContext and LinuxContainerSecurityContext in addition to specifying the UID. Support is implemented for dockershim. [@krmayankk]

- Kubernetes v1.13 moves support for Container Storage Interface to GA. As part of this move Kubernetes now supports CSI v1.0.0 and deprecates support for CSI 0.3 and older releases. Older CSI drivers must be updated to CSI 1.0 and moved to the new kubelet plugin registration directory in order to work with Kubernetes 1.15+. ([#71020](h...

- Add support support to Manilla for trustee authentication and supplying custom CAs.
- Add and update documentation.
- Add support to Manilla for provisioning existing shares.
- Add cluster name to load balancer description
- Add synchronization between Kubernetes and Keystone projects
- Add use internal DNS name for 'hostname' of nodes.
- Add support for CSI spec v0.3.0 for both Cinder and Manilla

* The namespace API object no longer supports the deletecollection operation, which was previously allowed by mistake and did not respect expected namespace lifecycle semantics. ([#47098](https://github.com/kubernetes/kubernetes/pull/47098), [@liggitt](https://github.com/liggitt))

- Kubernetes now supports configure accessLogs for AWS NLB. ([#78497](https://github.com/kubernetes/kubernetes/pull/78497), [@M00nF1sh](https://github.com/M00nF1sh))
- Kubernetes now supports update LoadBalancerSourceRanges for AWS NLB([#74692](https://github.com/kubernetes/kubernetes/pull/74692), [@M00nF1sh](https://github.com/M00nF1sh))

- Kube-proxy: Added dual-stack IPv4/IPv6 support to the iptables proxier. ([#82462](https://github.com/kubernetes/kubernetes/pull/82462), [@vllry](https://github.com/vllry)) [SIG Network]