kubernetes/kubeadm: [#1204](https://github.com/kubernetes/kubeadm/issues/1204)
kubernetes/enhancements: [kep](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/kubeadm/2501-kubeadm-phases-to-beta/README.md)

## Known Issues

This release also includes [Topology Aware Volume Scheduling](https://github.com/kubernetes/enhancements/issues/490) for local persistent volumes, the stable release of [Detailed storage metrics of internal state](https://github.com/kubernetes/enhancements/issues/496), and beta support for [Out-of-tree CSI Volume Plugins](https://github.com/kubernetes/enhancements/issues/178).

## Known Issues

This section contains a list of known issues reported in Kubernetes 1.8 release. The content is populated via [v1.8.x known issues and FAQ accumulator](https://github.com/kubernetes/kubernetes/issues/53004).

        * Additional memory overhead per container ([#21737](https://github.com/kubernetes/kubernetes/pull/21737))

    * Docker 1.10.3 contains [backports provided by RedHat](https://github.com/docker/docker/compare/v1.10.3...runcom:docker-1.10.3-stable) for known issues

    * Additional memory overhead per container ([#21737](https://github.com/docker/docker/issues/21737))
  * Docker 1.10.3 contains [backports provided by RedHat](https://github.com/docker/docker/compare/v1.10.3...runcom:docker-1.10.3-stable) for known issues
  * Support for Docker version 1.9.x has been removed
* rkt version 1.23.0+

    (namely `iptables`) drifted from the versions used in the kube-proxy images.
  
    The following issues were filed on kube-proxy failures when using hyperkube:
    - https://github.com/kubernetes/kubernetes/issues/92275
    - https://github.com/kubernetes/kubernetes/issues/92272
    - https://github.com/kubernetes/kubernetes/issues/92250
  
    To address this, the new debian-hyperkube-base image (v1.1.0) uses the

([#383](https://github.com/kubernetes/enhancements/issues/383)), ([#575](https://github.com/kubernetes/enhancements/issues/575) ), ([#492](https://github.com/kubernetes/enhancements/issues/492) ), ([#598](https://github.com/kubernetes/enhancements/issues/598) ), ([#692](https://github.com/kubernetes/enhancements/issues/692) ), ([#95](https://github.com/kubernetes/enhancements/issues/95) ), ([#995](https://github.com/kubernetes/enhancements/issues/995) ), ([#956](https://github.com/kubernetes/enha...

* StorageObjectInUseProtection is now GA ([ref](https://github.com/kubernetes/enhancements/issues/498)) and ([ref](https://github.com/kubernetes/enhancements/issues/499))

#### Graduated to Beta

* Supporting out-of-tree/external cloud providers is now considered beta ([ref](https://github.com/kubernetes/enhancements/issues/88))

> - Start SHA: 91e7b4fd31fcd3d5f436da26c980becec37ceefe
> - End Sha: 337e0e18f1aefa199bd0a1786f8eab42e948064c

## Known Issues

- When using IPV6-only, be sure to use `proxy-mode=iptables` as `proxy-mode=ipvs` is known to not work. ([#68437](https://github.com/kubernetes/kubernetes/issues/68437))

## Deprecations