- `apps/v1beta1=true`
    - `apps/v1beta2=true`
    - `extensions/v1beta1/daemonsets=true,extensions/v1beta1/deployments=true,extensions/v1beta1/replicasets=true,extensions/v1beta1/networkpolicies=true,extensions/v1beta1/podsecuritypolicies=true`

    The ability to serve these resources will be completely removed in v1.18. ([#70672](https://github.com/kubernetes/kubernetes/pull/70672), [@liggitt](https://github.com/liggitt))

- Nodes now support [third party monitoring plugins](https://github.com/kubernetes/enhancements/issues/606).
- A new [Scheduling Framework](https://github.com/kubernetes/enhancements/issues/624) for schedule plugins is now Alpha.
- Continued deprecation of extensions/v1beta1, apps/v1beta1, and apps/v1beta2 APIs; these extensions will be retired in 1.16!

  - NetworkPolicy resources will no longer be served from `extensions/v1beta1` in v1.16. Migrate use to the `networking.k8s.io/v1` API, available since v1.8. Existing...

- Stopped expanding the volume on the node if controller-side expansion was already completed. ([#131868](https://github.com/kubernetes/kubernetes/pull/131868), [@gnufied](https://github.com/gnufied))
- Stopped logging error events when waiting for expansion on the kubelet. ([#131408](https://github.com/kubernetes/kubernetes/pull/131408), [@gnufied](https://github.com/gnufied))

* **[alpha]** All in one volume proposal - a new volume driver capable of projecting secrets, configmaps, and downward API items into the same directory.

## Deprecations
* Remove extensions/v1beta1 Jobs resource, and job/v1beta1 generator. ([#38614](https://github.com/kubernetes/kubernetes/pull/38614), [@soltysh](https://github.com/soltysh))

  - `daemonsets`, `deployments`, `replicasets` resources under `extensions/v1beta1` - use `apps/v1` instead
  - `networkpolicies` resources under `extensions/v1beta1` - use `networking.k8s.io/v1` instead

- `kubectl get ingress` now prefers the `networking.k8s.io/v1` over `extensions/v1beta1` (deprecated since v1.14). To explicitly request the deprecated version, use `kubectl get ingress.v1beta1.extensions`. ([#94309](https://github.com/kubernetes/kubernetes/pull/94309), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and CLI]

## Dependencies

    - [Namespace](#namespace)
    - [Scheduling](#scheduling)
  - [**Notable Features**](#notable-features)
  - [Kubefed](#kubefed)
    - [**Kubernetes API**](#kubernetes-api)
      - [User Provided Extensions](#user-provided-extensions)
    - [**Application Deployment**](#application-deployment)
      - [StatefulSet](#statefulset)
      - [DaemonSet](#daemonset-1)
      - [Deployments](#deployments)

    - [Beta APIs Off by Default](#beta-apis-off-by-default)
    - [Signing Release Artifacts](#signing-release-artifacts)
    - [OpenAPI v3](#openapi-v3)
    - [Storage Capacity and Volume Expansion Are Generally Available](#storage-capacity-and-volume-expansion-are-generally-available)
    - [NonPreemptingPriority to Stable](#nonpreemptingpriority-to-stable)
    - [Storage Plugin Migration](#storage-plugin-migration)

### Network

In v1.9 SIG Network has implemented alpha support for IPv6, and alpha support for CoreDNS as a drop-in replacement for kube-dns. Additionally, SIG Network has begun the deprecation process for the extensions/v1beta1 NetworkPolicy API in favor of the networking.k8s.io/v1 equivalent.

### Node