requestAnimationFrame(this.update);\n\n  /**\n   * Collection of utilities useful when writing custom modifiers.\n   * Starting from version 1.7, this method is available only if you\n   * include `popper-utils.js` before `popper.js`.\n   *\n   * **DEPRECATION**: This way to access PopperUtils is deprecated\n   * and will be removed in v2! Use the PopperUtils module directly instead.\n   * Due to the high instability of the methods contained in Utils, we can't\n   * guarantee them to follow semver. Use...

## **Deprecations**

### Cluster provisioning scripts
* cluster/ubuntu: Removed due to [deprecation](https://github.com/kubernetes/kubernetes/tree/master/cluster#cluster-configuration) and lack of maintenance. ([#44344](https://github.com/kubernetes/kubernetes/pull/44344), [@mikedanese](https://github.com/mikedanese))

- Removed plugin watching of the deprecated directory `{kubelet_root_dir}/plugins` and CSI V0 support in accordance with deprecation announcement in https://v1-13.docs.kubernetes.io/docs/setup/release/notes ([#84533](https://github.com/kubernetes/kubernetes/pull/84533), [@davidz627](https://github.com/davidz627))

### 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

* The kubelet --reconcile-cdir flag is deprecated because it has no function anymore. ([#35523](https://github.com/kubernetes/kubernetes/pull/35523), [@luxas](https://github.com/luxas))
* Notice of deprecation for recycler [#36760](https://github.com/kubernetes/kubernetes/pull/36760)

* add some more deprecation warnings to cluster ([#49148](https://github.com/kubernetes/kubernetes/pull/49148), [@mikedanese](https://github.com/mikedanese))

### Docs

* 📝 Add documentation for Behind a Proxy - Proxy Forwarded Headers, using `--forwarded-allow-ips="*"`. PR [#14028](https://github.com/fastapi/fastapi/pull/14028) by [@tiangolo](https://github.com/tiangolo).
* 📝 Add deprecation info block about `dict()` in `docs/tutorial/body.md`. PR [#13906](https://github.com/fastapi/fastapi/pull/13906) by [@jomkv](https://github.com/jomkv).

* Volume metrics support for vSphere Cloud Provider ([#59328](https://github.com/kubernetes/kubernetes/pull/59328), [@divyenpatel](https://github.com/divyenpatel))
* Announcing the deprecation of the recycling reclaim policy. ([#59063](https://github.com/kubernetes/kubernetes/pull/59063), [@ayushpateria](https://github.com/ayushpateria))

## Changelog since v1.6.7

### Other notable changes

* Revert deprecation of vCenter port in vSphere Cloud Provider. ([#49689](https://github.com/kubernetes/kubernetes/pull/49689), [@divyenpatel](https://github.com/divyenpatel))

- 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!