- Fixed a bug in `ValidatingAdmissionPolicy` where schemas with `additionalProperties: true` could cause the kube-controller-manager to crash with a nil pointer exception. ([#135155](https://github.com/kubernetes/kubernetes/pull/135155), [@jpbetz](https://github.com/jpbetz))

// unless all have that, in which case all are preserved.
func (p serverPoolsAvailableSpace) FilterMaxUsed(maxUsed int) {
	// We aren't modifying p, only entries in it, so we don't need to receive a pointer.
	if len(p) <= 1 {
		// Nothing to do.
		return
	}
	var ok bool
	for _, z := range p {
		if z.Available > 0 && z.MaxUsedPct < maxUsed {
			ok = true
			break
		}
	}
	if !ok {

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  }

  /** Returns a joiner which automatically places {@code separator} between consecutive elements. */
  public static Joiner on(char separator) {
    return new Joiner(String.valueOf(separator));
  }

  private final String separator;

  private Joiner(String separator) {
    this.separator = checkNotNull(separator);
  }

  private Joiner(Joiner prototype) {
    this.separator = prototype.separator;
  }

## Changelog since v1.12.5

### Other notable changes

* kubeadm: fixed nil pointer dereference caused by a bug in url parsing ([#74454](https://github.com/kubernetes/kubernetes/pull/74454), [@bart0sh](https://github.com/bart0sh))

### Other notable changes

* Fixed a regression where the kubelet would fail to update the ready status of pods. ([#86191](https://github.com/kubernetes/kubernetes/pull/86191), [@tedyu](https://github.com/tedyu))
* Fix nil pointer dereference in azure cloud provider ([#85975](https://github.com/kubernetes/kubernetes/pull/85975), [@ldx](https://github.com/ldx))

- Ignore context canceled from validate and mutate webhook ([#120019](https://github.com/kubernetes/kubernetes/pull/120019), [@divyasri537](https://github.com/divyasri537)) [SIG API Machinery]
- Kubeadm: fix nil pointer when etcd member is already removed ([#120012](https://github.com/kubernetes/kubernetes/pull/120012), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)

* fix parse devicePath issue on Azure Disk ([#74499](https://github.com/kubernetes/kubernetes/pull/74499), [@andyzhangx](https://github.com/andyzhangx))
* kubeadm: fixed nil pointer dereference caused by a bug in url parsing ([#74454](https://github.com/kubernetes/kubernetes/pull/74454), [@bart0sh](https://github.com/bart0sh))

- Fix missing "apiVersion" for "involvedObject" in Events for Nodes. ([#87537](https://github.com/kubernetes/kubernetes/pull/87537), [@uthark](https://github.com/uthark)) [SIG Apps and Node]
- Fix nil pointer dereference in azure cloud provider ([#85975](https://github.com/kubernetes/kubernetes/pull/85975), [@ldx](https://github.com/ldx)) [SIG Cloud Provider]

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