NavigableMap<K, V> synchronizedNavigableMap(NavigableMap<K, V> navigableMap) {
    return Synchronized.navigableMap(navigableMap);
  }

  /**
   * {@code AbstractMap} extension that makes it easy to cache customized keySet, values, and
   * entrySet views.
   */
  abstract static class ViewCachingAbstractMap<
          K extends @Nullable Object, V extends @Nullable Object>

- Kubeadm: add the RootlessControlPlane kubeadm specific feature gate (Alpha in 1.22, disabled by default).
  It can be used to enable an experimental feature that makes the control plane component static Pod containers 

- Added support for installing `arm64` node artifacts. ([#99242](https://github.com/kubernetes/kubernetes/pull/99242), [@liu-cong](https://github.com/liu-cong))

- The `RemoteRequestHeaderUID` feature moves to beta and is now enabled by default. This makes the kube-apiserver propagate UIDs in the `X-Remote-Uid` header in requests to the aggregated API servers. The header is not honored by default for incoming requests, but that can be enabled by setting the `--requestheader-uid-headers` flag explicitly....

- Make decoding etcd's response respect the timeout context. ([#121815](https://github.com/kubernetes/kubernetes/pull/121815), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG API Machinery]

- Introduce the alpha MutableSchedulingDirectivesForSuspendedJobs feature gate (disabled by default) which:
  1. allows to mutate Job's scheduling directives for suspended Jobs
  2. makes the Job controller to clear the status.startTime field for suspended Jobs ([#135104](https://github.com/kubernetes/kubernetes/pull/135104), [@mimowo](https://github.com/mimowo)) [SIG Apps and Testing]

--get-active-zones ``` This command gets the active zone(s). Now, apply port rules to the relevant zones returned above. For example if the zone is `public`, use ```sh firewall-cmd --zone=public --add-port=9000/tcp --permanent ``` Note that `permanent` makes sure the rules are persistent across firewall start, restart or reload. Finally reload the firewall for changes to take effect. ```sh firewall-cmd --reload ``` ### iptables For hosts with iptables enabled (RHEL, CentOS, etc), you can use `iptables`...

between the boundaries\n     * and the popper. This makes sure the popper always has a little padding\n     * between the edges of its container\n     */\n    padding: 5,\n    /**\n     * @prop {String|HTMLElement} boundariesElement='scrollParent'\n     * Boundaries used by the modifier. Can be `scrollParent`, `window`,\n     * `viewport` or any DOM element.\n     */\n    boundariesElement: 'scrollParent',\n  },\n\n  /**\n   * Modifier used to make sure the reference and its popper stay near each other\n...

Russ Cox <******@****.***> 1328732807 -0500

- Removed defunct `make vet` target, please use `make lint` instead ([#132509](https://github.com/kubernetes/kubernetes/pull/132509), [@yongruilin](https://github.com/yongruilin)) [SIG Testing]