- Kubeadm: added the experimental (alpha) feature gate `EtcdLearnerMode` that allows etcd members to be joined as learner and only then promoted as voting members ([#113318](https://github.com/kubernetes/kubernetes/pull/113318), [@pacoxu](https://github.com/pacoxu))

     *
     * We will still use the readXxxWireFormat return values to
     * indicate how many bytes(note: readParameterWordsWireFormat
     * returns bytes read and not the number of words(but the
     * wordCount member DOES store the number of words)) we
     * actually read. Incedentally this is important to the
     * AndXServerMessageBlock class that needs to potentially
     * read in another smb's parameter words and bytes based on

     * resource is a normal disk file directory,
     * <li>all available NetBIOS workgroups or domains if this resource is
     * the top level URL <code>smb://</code>,
     * <li>all servers registered as members of a NetBIOS workgroup if this
     * resource refers to a workgroup in a <code>smb://workgroup/</code> URL,
     * <li>all browseable shares of a server including printers, IPC

	}

	if err = globalIAMSys.LoadUser(context.Background(), objAPI, accessKey, userType); err != nil {
		return np, grid.NewRemoteErr(err)
	}

	return
}

// LoadGroupHandler - reloads group along with members list.
func (s *peerRESTServer) LoadGroupHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return np, grid.NewRemoteErr(errServerNotInitialized)
	}

    snapshot of the `OkHttpClient` instance to defend against racy configuration
    changes. In 3.x, `OkHttpClient` is now stateless and has a builder. Note
    that this class is not strictly immutable as it has stateful members like
    the connection pool and cache.

 *  **Get and Set prefixes are now avoided.** With ubiquitous builders
    throughout OkHttp these accessor prefixes aren't necessary. Previously

   * references, instead of calling {@code equals}, to determine whether a provided object matches
   * an element in the set. For example, {@code contains} returns {@code false} when passed an
   * object that equals a set member, but isn't the same instance. This behavior is similar to the
   * way {@code IdentityHashMap} handles key lookups.
   *
   * @since 8.0
   */
  public static <E extends @Nullable Object> Set<E> newIdentityHashSet() {

* Upgrade to etcd client 3.3.17 to fix bug where etcd client does not parse IPv6 addresses correctly when members are joining, and to fix bug where failover on multi-member etcd cluster fails certificate check on DNS mismatch ([#83968](https://github.com/kubernetes/kubernetes/pull/83968), [@jpbetz](https://github.com/jpbetz))

- Kubeadm: fix wrong member list reported when removing an etcd member ([#127961](https://github.com/kubernetes/kubernetes/pull/127961), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

 * com.google.common.net.InternetDomainName}.</b>
 *
 * <p>A generated static class containing public members which provide domain name patterns used in
 * determining whether a given domain name is an effective top-level domain (public suffix).
 *
 * <p>Because this class is used in GWT, the data members are stored in a space-efficient manner.
 * See {@link TrieParser}.
 *
 * @since 16.0
 */
@GwtCompatible
@Beta

- Kubeadm: fix wrong member list reported when removing an etcd member ([#127960](https://github.com/kubernetes/kubernetes/pull/127960), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]