- Kubelet/stats: set INFO log level for stats not found in cadvisor memory cache error. ([#125656](https://github.com/kubernetes/kubernetes/pull/125656), [@gyuho](https://github.com/gyuho))
- Kubelet: warn instead of error for the unsupported options on Windows "CgroupsPerQOS" and "EnforceNodeAllocatable". ([#123137](https://github.com/kubernetes/kubernetes/pull/123137), [@neolit123](https://github.com/neolit123)) [SIG Node and Windows]

	if exp == nil || exp.IsZero() || exp.Equal(timeSentinel) {
		return nil
	}
	dur := exp.Sub(time.Now())
	if dur <= 0 {
		return errors.New("unsupported expiration time")
	}
	condValues["DurationSeconds"] = []string{strconv.FormatInt(int64(dur.Seconds()), 10)}
	return nil
}

- If a client makes an API streaming requests and specifies an `application/json;as=Table` content type, the API server now responds with a 406 (Not Acceptable) error.
  This change helps to ensure that unsupported formats, such as `Table` representations are correctly rejected. ([#126996](https://github.com/kubernetes/kubernetes/pull/126996), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery and Testing]

   */
  @Test
  fun anonCipherSuiteUnsupported() {
    platform.assumeNotConscrypt()
    platform.assumeNotBouncyCastle()

    // The _anon_ suites became unsupported in "1.8.0_201" and "11.0.2".
    assumeFalse(
      System.getProperty("java.version", "unknown").matches(Regex("1\\.8\\.0_1\\d\\d")),
    )
    server.enqueue(MockResponse())

*   `tf.lite`:

    *   New operations supported:
        *   tflite SelectV2 now supports 5D.
        *   `tf.einsum` is supported with multiple unknown shapes.
        *   `tf.unsortedsegmentprod` op is supported.
        *   `tf.unsortedsegmentmax` op is supported.
        *   `tf.unsortedsegmentsum` op is supported.
    *   Updates to existing operations:

  @Test
  fun nonStandardAuthenticationSchemeWithRealm() {
    val calls = authCallsForHeader("WWW-Authenticate: Foo realm=\"Bar\"")
    assertThat(calls.size).isEqualTo(0)
  }

  // Digest auth is currently unsupported. Test that digest requests should fail reasonably.
  // http://code.google.com/p/android/issues/detail?id=11140
  @Test
  fun digestAuthentication() {
    val calls =
      authCallsForHeader(

  // Required: Selects a field of the pod: only annotations, labels, name and namespace are supported.
  // +optional
  optional ObjectFieldSelector fieldRef = 2;

  // Selects a resource of the container: only resources limits and requests
  // (limits.cpu, limits.memory, requests.cpu and requests.memory) are currently supported.
  // +optional
  optional ResourceFieldSelector resourceFieldRef = 3;

        // Handles both un-configured and none selected.
        null, "" -> null
        else -> protocol
      }
    } else {
      super.getSelectedProtocol(sslSocket)
    }

  companion object {
    val isSupported: Boolean =
      try {
        // Trigger an early exception over a fatal error, prefer a RuntimeException over Error.
        Class.forName("org.openjsse.net.ssl.OpenJSSE", false, javaClass.classLoader)

        true

        // Handles both un-configured and none selected.
        null, "" -> null
        else -> protocol
      }
    } else {
      super.getSelectedProtocol(sslSocket)
    }

  companion object {
    val isSupported: Boolean =
      try {
        // Trigger an early exception over a fatal error, prefer a RuntimeException over Error.
        Class.forName("org.bouncycastle.jsse.provider.BouncyCastleJsseProvider", false, javaClass.classLoader)

    /**
     * @throws CIFSException
     */
    void dispose () throws CIFSException;


    /**
     * @param mechanism
     * @return whether the specified mechanism is supported
     */
    boolean isSupported ( ASN1ObjectIdentifier mechanism );


    /**
     * @param selectedMech
     * @return whether the specified mechanism is preferred
     */