* Allows extension API server to dynamically discover the requestheader CA certificate when the core API server doesn't use certificate based authentication for it's clients ([#66394](https://github.com/kubernetes/kubernetes/pull/66394), [@rtripat](https://github.com/rtripat))

- Fix the bug PIP's DNS is deleted if no DNS label service annotation isn't set. ([#87310](https://github.com/kubernetes/kubernetes/pull/87310), [@nilo19](https://github.com/nilo19)) [SIG Cloud Provider]
- Fix: set nil cache entry based on old cache ([#87593](https://github.com/kubernetes/kubernetes/pull/87593), [@aramase](https://github.com/aramase)) [SIG Cloud Provider]

### Breaking Changes - Upgrade

This release adds support for [Trio](https://trio.readthedocs.io/en/stable/). ✨

It upgrades the version of Starlette to `0.15.0`, now based on [AnyIO](https://anyio.readthedocs.io/en/stable/), and the internal async components in **FastAPI** are now based on AnyIO as well, making it compatible with both **asyncio** and **Trio**.

### PodSecurity graduates to Beta

[PodSecurity](https://kubernetes.io/docs/concepts/security/pod-security-admission/) moves to Beta.
`PodSecurity` replaces the deprecated `PodSecurityPolicy` admission controller.

- Introduce alpha support for exec-based container registry credential provider plugins in the kubelet. ([#94196](https://github.com/kubernetes/kubernetes/pull/94196), [@andrewsykim](https://github.com/andrewsykim)) [SIG Node and Release]

### Other (Cleanup or Flake)

- Bump distroless-iptables to 0.2.8 based on Go 1.20.11 ([#121976](https://github.com/kubernetes/kubernetes/pull/121976), [@cpanato](https://github.com/cpanato)) [SIG Testing]

### Other (Cleanup or Flake)

- Bump distroless-iptables to 0.2.8 based on Go 1.20.11 ([#121975](https://github.com/kubernetes/kubernetes/pull/121975), [@cpanato](https://github.com/cpanato)) [SIG Testing]

- Fix: ignore the case when updating Azure tags (#104686, @nilo19) [SIG Cloud Provider]
- Revert PR #102925 which introduced unexpected scheduling behavior based on balanced resource allocation (#105238, @damemi) [SIG Scheduling]

SIG CLI

Over the course of 1.13 release SIG CLI mostly focused on stabilizing the items we’ve been working on over the past releases such as server-side printing and its support in kubectl, as well as finishing [kubectl diff which is based on server-side dry-run feature](https://kubernetes.io/docs/concepts/overview/working-with-objects/object-management/#how-to-create-objects). We’ve continued separating kubectl code to prepare for extraction out of main repository. Finally, thanks to...

    - [Promoted Server Side Unknown Field Validation to Beta](#promoted-server-side-unknown-field-validation-to-beta)
    - [Introduced KMS v2](#introduced-kms-v2)
    - [Kube-proxy images are now based on distroless images](#kube-proxy-images-are-now-based-on-distroless-images)
  - [Known Issues](#known-issues)