#### Docker runtime Known Issues

- Kernel crash with Aufs storage driver on Debian Jessie ([#27885](https://github.com/kubernetes/kubernetes/issues/27885))
  - Consider running the *new* [kubernetes node problem detector](https://github.com/kubernetes/node-problem-detector) to identify this (and other) kernel issues automatically.

    // Note that although we have two routes available, we only use one. The retry is permitted
    // because there are routes available, but it chooses the existing connection since it isn't
    // yet considered unhealthy.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(1)
  }

  @Test
  fun noRecoveryWhenRoutesExhausted() {
    client =
      client
        .newBuilder()

* Limit the number of names per image reported in the node status ([#32914](https://github.com/kubernetes/kubernetes/pull/32914), [@yujuhong](https://github.com/yujuhong))
* Fixes in HPA: consider only running pods; proper denominator in avg request calculations. ([#33735](https://github.com/kubernetes/kubernetes/pull/33735), [@jszczepkowski](https://github.com/jszczepkowski))

* 👷 Disable MkDocs insiders social plugin while an issue in MkDocs Material is handled. PR [#11373](https://github.com/tiangolo/fastapi/pull/11373) by [@tiangolo](https://github.com/tiangolo).
* 👷 Fix logic for when to install and use MkDocs Insiders. PR [#11372](https://github.com/tiangolo/fastapi/pull/11372) by [@tiangolo](https://github.com/tiangolo).

* AWS: Support default value for ExternalHost ([#33568](https://github.com/kubernetes/kubernetes/pull/33568), [@justinsb](https://github.com/justinsb))
* HPA: Consider unready pods separately ([#33593](https://github.com/kubernetes/kubernetes/pull/33593), [@DirectXMan12](https://github.com/DirectXMan12))

   * exceptions, this difference may be visible in the returned List.
   */
  @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
  private static <K> List<Object> doConcurrentGet(
      LoadingCache<K, ?> cache, K key, int nThreads, CountDownLatch gettersStartedSignal)
      throws InterruptedException {

            @Override
            public String load(String key) {
              return key + "Load";
            }

            @Override
            @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
            public ListenableFuture<String> reload(String key, String oldValue) {
              return refreshExecutor.submit(
                  () -> {
                    reloadStarted.countDown();

            @Override
            public String load(String key) {
              return key + "Load";
            }

            @Override
            @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
            public ListenableFuture<String> reload(String key, String oldValue) {
              return refreshExecutor.submit(
                  () -> {
                    reloadStarted.countDown();

[SIG Storage]: https://github.com/kubernetes/community/tree/master/sig-storage

## Before Upgrading

Consider the following changes, limitations, and guidelines before you upgrade:

* fixes spurious "meaningful conflict" error encountered by nodes attempting to update status, which could cause them to be considered unready ([#66169](https://github.com/kubernetes/kubernetes/pull/66169), [@liggitt](https://github.com/liggitt))