- Kube-apiserver: resolved a regression that treated `304 Not Modified` responses from aggregated API servers as internal errors ([#112530](https://github.com/kubernetes/kubernetes/pull/112530), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

  - [Known Issues](#known-issues)
    - [Summary API in kubelet doesn't have accelerator metrics](#summary-api-in-kubelet-doesnt-have-accelerator-metrics)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
  - [Changes by Kind](#changes-by-kind-14)
    - [Deprecation](#deprecation)
    - [API Change](#api-change-4)
    - [Feature](#feature-6)

      - [add-ons:](#add-ons)
      - [kube-scheduler:](#kube-scheduler)
      - [Other deprecations:](#other-deprecations)
    - [API Change](#api-change-6)
      - [New API types/versions:](#new-api-typesversions)
      - [New API fields:](#new-api-fields)
      - [Other API changes:](#other-api-changes)
      - [Configuration file changes:](#configuration-file-changes)
      - [kube-apiserver:](#kube-apiserver-2)

### API Change

- Add ServedVersions field to StorageVersion API ([#118386](https://github.com/kubernetes/kubernetes/pull/118386), [@Richabanker](https://github.com/Richabanker)) [SIG API Machinery and Testing]

    - [Scheduling](#scheduling)
  - [Notable Features](#notable-features)
    - [Workloads API (apps/v1beta2)](#workloads-api-appsv1beta2)
      - [API Object Additions and Migrations](#api-object-additions-and-migrations)
      - [Behavioral Changes](#behavioral-changes)
      - [Defaults](#defaults)
    - [Workloads API (batch)](#workloads-api-batch)
      - [CLI Changes](#cli-changes)
      - [Scheduling](#scheduling-1)

- Kube-apiserver: The `rbac.authorization.k8s.io/v1alpha1` API version is removed; use the `rbac.authorization.k8s.io/v1` API, available since v1.8. The `scheduling.k8s.io/v1alpha1` API version is removed; use the `scheduling.k8s.io/v1` API, available since v1.14. ([#104248](https://github.com/kubernetes/kubernetes/pull/104248), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Auth, Network and Testing]

### API Change

- Add auth API to get self subject attributes (new selfsubjectreviews API is added). 
  The corresponding command for kubctl is provided - `kubectl auth whoami`. ([#111333](https://github.com/kubernetes/kubernetes/pull/111333), [@nabokihms](https://github.com/nabokihms)) [SIG API Machinery, Auth, CLI and Testing]

  - [Important Security Information](#important-security-information-4)
    - [CVE-2022-3172: Aggregated API server can cause clients to be redirected (SSRF)](#cve-2022-3172-aggregated-api-server-can-cause-clients-to-be-redirected-ssrf)
  - [Changes by Kind](#changes-by-kind-14)
    - [API Change](#api-change-3)
    - [Feature](#feature-13)
    - [Bug or Regression](#bug-or-regression-14)
  - [Dependencies](#dependencies-15)

- Fix API comment for the Job Ready field in status ([#121765](https://github.com/kubernetes/kubernetes/pull/121765), [@mimowo](https://github.com/mimowo)) [SIG API Machinery and Apps]
- Fix API comments for the FailIndex Job pod failure policy action. ([#121764](https://github.com/kubernetes/kubernetes/pull/121764), [@mimowo](https://github.com/mimowo)) [SIG API Machinery and Apps]

### Feature

- The node.k8s.io/v1alpha1 RuntimeClass API is no longer served. Use the node.k8s.io/v1 API version, available since v1.20 ([#103061](https://github.com/kubernetes/kubernetes/pull/103061), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev)) [SIG API Machinery, CLI, Node and Testing]

### API Change

- Add 2 new options for kube-proxy running in winkernel mode.