}

  @Override
  public abstract ImmutableSortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType);

  /**
   * Returns a builder that creates immutable sorted multisets with an explicit comparator. If the
   * comparator has a more general type than the set being generated, such as creating a {@code
   * SortedMultiset<Integer>} with a {@code Comparator<Number>}, use the {@link Builder} constructor
   * instead.

    this(
        allowsNullKeys,
        allowsNullValues,
        supportsPut,
        supportsRemove,
        supportsClear,
        supportsRemove);
  }

  /** Constructor with an explicit {@code supportsIteratorRemove} parameter. */
  protected MapInterfaceTest(
      boolean allowsNullKeys,
      boolean allowsNullValues,
      boolean supportsPut,
      boolean supportsRemove,

  - `PriorityLevelConfiguration`: the `.spec.limited.nominalConcurrencyShares` field defaults to `30` only if the field is omitted (v1beta3 also defaulted an explicit `0` value to `30`). Specifying an explicit `0` value is not allowed in the `v1` version in v1.29 to ensure compatibility with `v1.28` API servers. In `v1.30`, explicit `0` values will be allowed in this field in the `v1` API.

   * natural ordering.
   *
   * <p><b>Note:</b> if mutability is not required, use {@link ImmutableSortedSet#copyOf(Iterable)}
   * instead.
   *
   * <p><b>Note:</b> If {@code elements} is a {@code SortedSet} with an explicit comparator, this
   * method has different behavior than {@link TreeSet#TreeSet(SortedSet)}, which returns a {@code
   * TreeSet} with that comparator.
   *

 *
 * This class has a modern API. It avoids punitive checked exceptions: [toHttpUrl] throws
 * [IllegalArgumentException] on invalid input or [toHttpUrlOrNull] returns null if the input is an
 * invalid URL. You can even be explicit about whether each component has been encoded already.
 *
 * [idna]: http://www.unicode.org/reports/tr46/#ToASCII
 */
class HttpUrl private constructor(
  /** Either "http" or "https". */

 - Kubeadm: during "init" an empty cgroupDriver value in the KubeletConfiguration is now always set to "systemd" unless the user is explicit about it. This requires existing machine setups to configure the container runtime to use the "systemd" driver. Documentation on this topic can be found here: https://kubernetes.io/docs/setup/production-environment/container-runtimes/. When upgrading...

   *
   * <p>The current implementation uses the concurrency level to create a fixed number of hashtable
   * segments, each governed by its own write lock. The segment lock is taken once for each explicit
   * write, and twice for each cache loading computation (once prior to loading the new value, and
   * once after loading completes). Much internal cache management is performed at the segment

- Zero-value `metadata.creationTimestamp` values are now omitted and no longer serialize an explicit `null` in JSON, YAML, and CBOR output ([#130989](https://github.com/kubernetes/kubernetes/pull/130989), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Apps, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Etcd, Instrumentation,...

- Kubeadm: during "kubeadm init/join/upgrade", always default the `cgroupDriver` value in the `KubeletConfiguration` to `systemd`, unless the user was explicit about the value. See [configure-cgroup-driver](https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/configure-cgroup-driver/) for more details. ([#102133](https://github.com/kubernetes/kubernetes/pull/102133), [@pacoxu](https://github.com/pacoxu))...

- client-go
  - The deprecated versionless API group accessors (like `clientset.Apps()`) have been removed. Use an explicit version instead (like `clientset.AppsV1()`) ([#74422](https://github.com/kubernetes/kubernetes/pull/74422), [@liggitt](https://github.com/liggitt))