* 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))

    * [fluentd-gcp addon] Bump prometheus-to-sd to v0.5.0 to pick up security fixes.
    * [metatada-proxy addon] Bump prometheus-to-sd v0.5.0 to pick up security fixes.
* Ensure the backend pools are set correctly for Azure SLB with multiple backend pools (e.g. outbound rules) ([#76691](https://github.com/kubernetes/kubernetes/pull/76691), [@feiskyer](https://github.com/feiskyer))

- Simple script based hyperkube image that bundles all the necessary binaries. This is an equivalent replacement for the image based on the go based hyperkube command + image. ([#84662](https://github.com/kubernetes/kubernetes/pull/84662), [@dims](https://github.com/dims))

* Ensure the backend pools are set correctly for Azure SLB with multiple backend pools (e.g. outbound rules) ([#76691](https://github.com/kubernetes/kubernetes/pull/76691), [@feiskyer](https://github.com/feiskyer))

*   Azure-based clusters now support unlimited mount points. ([#54668](https://github.com/kubernetes/kubernetes/pull/54668)) ([#53629](https://github.com/kubernetes/kubernetes/pull/53629),[ @andyzhangx](https://github.com/andyzhangx))

* if kube-apiserver is started with `--storage-backend=etcd2`, the media type `application/json` is used. ([#43122](https://github.com/kubernetes/kubernetes/pull/43122), [@li...

Before upgrading to Kubernetes 1.13, you must keep the following in mind:

- kube-apiserver

## Changelog since v1.16.13

## Changes by Kind

### Bug or Regression

- Do not add nodes labeled with kubernetes.azure.com/managed=false to backend pool of load balancer. ([#93034](https://github.com/kubernetes/kubernetes/pull/93034), [@matthias50](https://github.com/matthias50)) [SIG Cloud Provider]

  * Passed all the Kubernetes 1.7 end-to-end conformance test suites.
  * Verification against Kubernetes 1.8 is planned soon after the release.

* [stable] [frakti](https://github.com/kubernetes/frakti): CRI implementation for hypervisor-based runtimes is now v1.1. [[@feiskyer](https://github.com/feiskyer)]

- Bumped `distroless-iptables` to `0.3.2` based on Go `1.21.1`. ([#120527](https://github.com/kubernetes/kubernetes/pull/120527), [@cpanato](https://github.com/cpanato))
- Bumped `distroless-iptables` to `0.3.3` based on Go `1.21.2`. ([#121073](https://github.com/kubernetes/kubernetes/pull/121073), [@cpanato](https://github.com/cpanato))