- PodSecurityPolicy resources will no longer be served from `extensions/v1beta1` in v1.16. Migrate to the `policy/v1beta1` API, available since v1.10. Existing persisted data can be retrieved via the `policy/v1beta1` API.

  - [Changelog since v1.5.0-beta.3](#changelog-since-v150-beta3)
    - [Other notable changes](#other-notable-changes-7)
    - [Previous Releases Included in v1.5.0](#previous-releases-included-in-v150)
- [v1.5.0-beta.3](#v150-beta3)
  - [Downloads for v1.5.0-beta.3](#downloads-for-v150-beta3)
    - [Client Binaries](#client-binaries-9)
    - [Server Binaries](#server-binaries-9)

  - When registering with a 1.17+ API server, a CustomResourceDefinition conversion webhook can now request that only `v1` ConversionReview requests be sent to them. Previously, conversion webhooks were required to support receiving `v1beta1` ConversionReview requests as well for compatibility with API servers <= 1.15. ([#8...

just the `ObjectMeta` for an object (as `PartialObjectMetadata`) are now beta as part of `meta.k8s.io/v1beta1` and configurations must be changed to use the new API.  Clients may request alternate representations of normal Kubernetes objects by passing an `Accept` header like `application/json;as=Table;g=meta.k8s.io;v=v1beta1` or `application/json;as=PartialObjectMetadata;g=meta.k8s.io;v1=v1beta1`.  Older servers will ignore this representation or return an error if it is not available.  Clients may...

- The `node.status.volumes.attached.devicePath` field is deprecated for CSI volumes and will not be set in future releases ([#7...

- Authentication.k8s.io/v1beta1 and authorization.k8s.io/v1beta1 are deprecated in 1.19 in favor of v1 levels and will be removed in 1.22 ([#90458](https://github.com/kubernetes/kubernetes/pull/90458), [@deads2k](https://github.com/deads2k)) [SIG API Machinery and Auth]

    * where `myfederation` is the name of the federation and `federation.test` is the domain name registered for the federation.
* federation: Upgrading the groupversion to v1beta1 ([#28186](https://github.com/kubernetes/kubernetes/pull/28186), [@nikhiljindal](https://github.com/nikhiljindal))

    - [Other notable changes](#other-notable-changes-13)
- [v1.4.0-beta.5](#v140-beta5)
  - [Downloads](#downloads-11)
  - [Changelog since v1.4.0-beta.3](#changelog-since-v140-beta3)
    - [Other notable changes](#other-notable-changes-14)
- [v1.4.0-beta.3](#v140-beta3)
  - [Downloads](#downloads-12)
  - [Changelog since v1.4.0-beta.2](#changelog-since-v140-beta2)

API has been promoted to policy/v1 with no schema changes. The only functional change is that an empty selector (`{}`) written to a policy/v1 PodDisruptionBudget now selects all pods in the namespace. The behavior of the policy/v1beta1 API remains unchanged. The policy/v1beta1 PodDisruptionBudget API is deprecated and will no longer be served in 1.25+. ([#99290](https://github.com/kubernetes/kubernetes/pull/99290), [@mortent](https://github.com/mortent)) [SIG API Machinery, Apps, Auth, Autoscaling,...

## **Action Required Before Upgrading**

### Network