- Fixed bug to correctly report `ErrRegistryUnavailable` on pulling container images for remote CRI runtimes. ([#117612](https://github.com/kubernetes/kubernetes/pull/117612), [@saschagrunert](https://github.com/saschagrunert)) [SIG Node]

   * PLAIN_TEXT_UTF_8.is(ANY_TEXT_TYPE.withCharset(UTF_16)) // false
   * }
   *
   * <p>Note that while it is possible to have the same parameter declared multiple times within a
   * media type this method does not consider the number of occurrences of a parameter. For example,
   * {@code "text/plain; charset=UTF-8"} satisfies {@code "text/plain; charset=UTF-8;
   * charset=UTF-8"}.
   */

Other notable changes include:
* CoreDNS replaces kube-dns as the default DNS provider
* Improved user experience for environments without a public internet connection and users using other CRI runtimes than Docker
* Support for structured configuration for the kubelet, which avoids the need to modify the systemd drop-in file
* Many improvements to the upgrade process and other bug fixes

### SIG Instrumentation

* Fix a bug that fluentd doesn't inject container logs for CRI container runtimes (containerd, cri-o etc.) into elasticsearch on GCE. ([#61818](https://github.com/kubernetes/kubernetes/pull/61818), [@Random-Liu](https://github.com/Random-Liu))

   ([#121912](https://github.com/kubernetes/kubernetes/pull/121912), [@JoelSpeed](https://github.com/JoelSpeed))
- Allowed container runtimes to fix an image garbage collection bug by adding an `image_id` field to the CRI Container message.
   ([#123508](https://github.com/kubernetes/kubernetes/pull/123508), [@saschagrunert](https://github.com/saschagrunert))

ore{content:"\f2c8"}.fa-think-peaks:before{content:"\f731"}.fa-thumbs-down:before{content:"\f165"}.fa-thumbs-up:before{content:"\f164"}.fa-thumbtack:before{content:"\f08d"}.fa-ticket-alt:before{content:"\f3ff"}.fa-times:before{content:"\f00d"}.fa-times-circle:before{content:"\f057"}.fa-tint:before{content:"\f043"}.fa-tint-slash:before{content:"\f5c7"}.fa-tired:before{content:"\f5c8"}.fa-toggle-off:before{content:"\f204"}.fa-toggle-on:before{content:"\f205"}.fa-toilet:before{content:"\f7d8"}.fa-t...

### Documentation

- The command`kubectl debug` will now print a warning message when using the `--target` option since many container runtimes do not support this yet. ([#101074](https://github.com/kubernetes/kubernetes/pull/101074), [@verb](https://github.com/verb))

### Failing Test

    }

    @Override
    public int hashCode() {
      /*
       * The sum of the sums of the hash codes in each subset is just the sum of
       * each input element's hash code times the number of sets that element
       * appears in. Each element appears in exactly half of the 2^n sets, so:
       */
      return inputSet.keySet().hashCode() << (inputSet.size() - 1);
    }

    @Override

	if err != nil {
		// Failed to create newbucket, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}
	for range 3 {
		// Initiate Multipart Upload on bucketNames[1] for the same object 3 times.
		//  Used to test the listing for the case of multiple uploadID's for a given object.
		res, err = obj.NewMultipartUpload(context.Background(), bucketNames[1], objectNames[0], opts)
		if err != nil {

- The RuntimeClass API has been added. This feature is in alpha, and the RuntimeClass feature gate must be enabled in order to use it. The RuntimeClass API resource defines different classes of runtimes that may be used to run containers in the cluster. Pods can select a RuntimeClass to use via the RuntimeClassName field. ([#67737](https://github.com/kubernetes/kubernetes/pull/67737), [@tallclair](https://github.com/tallclair))