*
   * @since 7.0
   */
  public static <T extends @Nullable Object> List<T> reverse(List<T> list) {
    if (list instanceof ImmutableList) {
      // Avoid nullness warnings.
      List<?> reversed = ((ImmutableList<?>) list).reverse();
      @SuppressWarnings("unchecked")
      List<T> result = (List<T>) reversed;
      return result;
    } else if (list instanceof ReverseList) {

## Changes by Kind

### Deprecation

- Added a [warning](https://k8s.io/blog/2020/09/03/warnings/) response when handling requests that set the deprecated `spec.externalID` field for a Node. ([#115944](https://github.com/kubernetes/kubernetes/pull/115944), [@SataQiu](https://github.com/SataQiu)) [SIG Node]
- Added warnings to the Services API. Kubernetes now warns for Services in the case of:

reliable across all browsers and versions. Non RFC2822/ISO date formats are discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.",function(e){e._d=new Date(e._i+(e._useUTC?" UTC":""))}),M.ISO_8601=function(){},M.RFC_2822=function(){};var ja=t("moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/",function(){var e=Ha.apply(null,arguments);return this.isValid()&&e.isValid()?e<this?this:e:y()}),xa=t("moment().max is deprecated,...

- Graduated the `LegacyServiceAccountTokenTracking` feature gate to GA. The usage of auto-generated secret-based service account token now produces warnings, and relevant Secrets are labeled with a last-used timestamp (label key `kubernetes.io/legacy-token-last-used`). ([#117591](https://github.com/kubernetes/kubernetes/pull/117591), [@zshihang](https://github.com/zshihang)) [SIG API Machinery, Auth...

- Added warnings when creating headless service with set `loadBalancerIP`,`externalIPs` and/or `SessionAffinity`. ([#132214](https://github.com/kubernetes/kubernetes/pull/132214), [@Peac36](https://github.com/Peac36))

- Kubeadm: perform pre-flight validation on host/node name upon `kubeadm init` and `kubeadm join`, showing warnings on non-compliant names ([#99194](https://github.com/kubernetes/kubernetes/pull/99194), [@pacoxu](https://github.com/pacoxu))

- Validation rules for Custom Resource Definitions can be written in the [CEL expression language](https://gith...

- Added warnings for overlap paths in ConfigMap, Secret, DownwardAPI, Projected. Added warning for cases when ProjectedVolume with sources is provided. ([#121968](https://github.com/kubernetes/kubernetes/pull/121968), [@Peac36](https://github.com/Peac36))

* Added e2e test for watch ([#60331](https://github.com/kubernetes/kubernetes/pull/60331), [@jennybuckley](https://github.com/jennybuckley))
* add warnings on using pod-infra-container-image for remote container runtime ([#62982](https://github.com/kubernetes/kubernetes/pull/62982), [@dixudx](https://github.com/dixudx))

  - The `--experimental-encryption-provider-config` flag is deprecated in favor of `--encryption-provider-config`. The old flag is accepted with a warning but will be removed in 1.14. ([#71206](https://github.com/kubernetes/kubernetes/pull/71206),...