* CustomResourceDefinitions: OpenAPI v3 validation schemas containing `$ref`references are no longer permitted (valid references could not be constructed previously because property ids were not permitted either). Before upgrading, ensure CRD definitions do not include those `$ref` fields. ([#58438](https://github.com/kubernetes/kubernetes/pull/58438), [@carlory](https://github.com/carlory))

- Reverted a kubectl azure auth module change where oidc claim spn: prefix was omitted resulting a breaking behavior with existing Azure AD OIDC enabled api-server ([#87507](https://github.com/kubernetes/kubernetes/pull/87507), [@weinong](https://github.com/weinong)) [SIG API Machinery, Auth and Cloud Provider]

        .build(),
    )
    val url = server.url("/a")
    assertThat(get(url).body.string()).isEqualTo("a")
    val i: Iterator<String> = cache.urls()
    cache.evictAll()

    // The URL was evicted before hasNext() made any promises.
    assertThat(i.hasNext()).isFalse()
    assertFailsWith<NoSuchElementException> {
      i.next()
    }
  }

   * serializable.
   *
   * <p>This method's signature will not permit you to convert a {@code NavigableMap<? extends K,
   * V>} to a {@code NavigableMap<K, V>}. If it permitted this, the returned map's {@code
   * comparator()} method might return a {@code Comparator<? extends K>}, which works only on a
   * particular subtype of {@code K}, but promise that it's a {@code Comparator<? super K>}, which

   * serializable.
   *
   * <p>This method's signature will not permit you to convert a {@code NavigableMap<? extends K,
   * V>} to a {@code NavigableMap<K, V>}. If it permitted this, the returned map's {@code
   * comparator()} method might return a {@code Comparator<? extends K>}, which works only on a
   * particular subtype of {@code K}, but promise that it's a {@code Comparator<? super K>}, which

## Action Required

- etcd2 as a backend is deprecated and support will be removed in Kubernetes 1.13.

- Ensure `InstanceShutdownByProviderID` return false for creating Azure VMs. ([#104382](https://github.com/kubernetes/kubernetes/pull/104382), [@feiskyer](https://github.com/feiskyer))
- Evicted and other terminated Pods will no longer revert to the `Running` phase. ([#105462](https://github.com/kubernetes/kubernetes/pull/105462), [@ehashman](https://github.com/ehashman))

- Fixed a race condition on API server startup ensuring previously created webhook configurations are effective before the first write request is admitted. ([#95783](https://github.com/kubernetes/kubernetes/pull/95783), [@roycaihw](https://github.com/roycaihw)) [SIG API Machinery]

     * present in the cache. Active values consist of live values, which are returned by cache
     * lookups, and dead values, which have been evicted but awaiting removal. Non-active values
     * consist strictly of loading values, though during refresh a value may be both active and
     * loading.
     */
    boolean isActive();
  }

- Fixed a race condition on API server startup ensuring previously created webhook configurations are effective before the first write request is admitted. ([#95783](https://github.com/kubernetes/kubernetes/pull/95783), [@roycaihw](https://github.com/roycaihw)) [SIG API Machinery]