- Added a `/status` endpoint for kube-proxy ([#128989](https://github.com/kubernetes/kubernetes/pull/128989), [@Henrywu573](https://github.com/Henrywu573)) [SIG Instrumentation and Network]
- Added a `/statusz` HTTP endpoint to the kube-scheduler. ([#128818](https://github.com/kubernetes/kubernetes/pull/128818), [@yongruilin](https://github.com/yongruilin)) [SIG Architecture, Instrumentation, Scheduling and Testing]

  interface ConcurrentlyMutatedList<E> extends List<E> {
    /**
     * The elements of a {@link ConcurrentlyMutatedList} are added and removed over time. This
     * method returns every state that the list has passed through at some point.
     */
    Set<List<E>> getAllStates();
  }

  /**

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.primitives.Doubles;

/**
 * A mutable object which accumulates paired double values (e.g. points on a plane) and tracks some
 * basic statistics over all the values added so far. This class is not thread safe.
 *
 * @author Pete Gillin
 * @since 20.0
 */
@J2ktIncompatible
@GwtIncompatible
public final class PairedStatsAccumulator {

     *
     * @param map the <code>Map</code> to which keys and values are added
     */
    protected Maps(final Map<K, V> map) {
        this.map = map;
    }

    /**
     * Adds a key and value to the {@link Map}.
     *
     * @param key the key to be added to the <code>Map</code>
     * @param value the value to be added to the <code>Map</code>
     * @return this instance
     */

   * IllegalArgumentException} if passed a {@code fromElement} smaller than an earlier {@code
   * fromElement}. However, this method doesn't throw an exception in that situation, but instead
   * keeps the original {@code fromElement}. Similarly, this method keeps the original {@code
   * toElement}, instead of throwing an exception, if passed a {@code toElement} greater than an
   * earlier {@code toElement}.
   */

### Known Issues

  * Paused deployments can't be resized and don't clean up old ReplicaSets.
  * Minimum memory limit is 4MB. This is a docker limitation
  * Minimum CPU limits is 10m. This is a Linux Kernel limitation
  * “kubectl rollout undo” (i.e. rollback) will hang on paused deployments, because
paused deployments can’t be rolled back (this is expected), and the command

        /** The writer for the temporary file. */
        protected Writer writer;

        /** The stopword item being added or updated. */
        protected StopwordsItem item;

        /**
         * Constructs a new updater for a stopword item.
         *
         * @param newItem The item to be added or updated.
         * @throws DictionaryException if the temporary file cannot be created.
         */

as well say that "I see what I eat" is the same thing as "I eat
what I see"!'

  `You might just as well say,' added the March Hare, `that "I
like what I get" is the same thing as "I get what I like"!'

  `You might just as well say,' added the Dormouse, who seemed to
be talking in his sleep, `that "I breathe when I sleep" is the
same thing as "I sleep when I breathe"!'

        /** The writer for the temporary file. */
        protected Writer writer;

        /** The synonym item being added or updated. */
        protected SynonymItem item;

        /**
         * Constructs a new updater for a synonym item.
         *
         * @param newItem The item to be added or updated.
         * @throws DictionaryException if the temporary file cannot be created.
         */

        protected Writer writer;

        /** The stemmer override item being added or updated. */
        protected StemmerOverrideItem item;

        /**
         * Constructs a new updater for a stemmer override item.
         *
         * @param newItem The item to be added or updated.
         * @throws DictionaryException if the temporary file cannot be created.
         */