`UnversionedKubeletConfigMap` feature gate to Beta and enabled the feature by default. This implies that 1) for new clusters kubeadm will start using the `kube-system/kubelet-config` naming scheme for the kubelet ConfigMap and RBAC rules, instead of the legacy `kubelet-config-x.yy` naming. 2) during upgrade, kubeadm will only write the new scheme ConfigMap and RBAC objects. To disable the feature you can pass `UnversionedKubeletConfigMap: false` in the kubeadm config for new clusters. For upgrade on existing clusters...

import kotlin.text.Charsets.ISO_8859_1
import okio.ByteString.Companion.encode

/** Factory for HTTP authorization credentials. */
object Credentials {
  /** Returns an auth credential for the Basic scheme. */
  @JvmStatic @JvmOverloads
  fun basic(
    username: String,
    password: String,
    charset: Charset = ISO_8859_1,
  ): String {
    val usernameAndPassword = "$username:$password"

      var path = requestLine.substring(methodEnd + 1, pathEnd)
      if (!path.startsWith("/")) {
        path = "/"
      }
      this.path = path

      val scheme = if (socket is SSLSocket) "https" else "http"
      val inetAddress = socket.localAddress

      var hostname = inetAddress.hostName
      if (inetAddress is Inet6Address && hostname.contains(':')) {

/** Returns true if an HTTP request for this URL and [other] can reuse a connection. */
internal fun HttpUrl.canReuseConnectionFor(other: HttpUrl): Boolean =
  host == other.host &&
    port == other.port &&
    scheme == other.scheme

internal fun EventListener.asFactory() = EventListener.Factory { this }

/**
 * Reads until this is exhausted or the deadline has been reached. This is careful to not extend the

 *
 *  * A DNS lookup failed
 *  * The configuration is incapable of carrying the request, such as when the client is configured
 *    to use `H2_PRIOR_KNOWLEDGE` but the URL's scheme is `https:`.
 *  * Preemptive proxy authentication failed.
 *
 * Planning failures are not necessarily fatal. For example, even if we can't DNS lookup the first
 * proxy in a list, looking up a subsequent one may succeed.
 */

 * **Cache**: directory
 * **CacheControl**: immutable, maxAgeSeconds, maxStaleSeconds, minFreshSeconds, mustRevalidate,
   noCache, noStore, noTransform, onlyIfCached, sMaxAgeSeconds
 * **Challenge**: authParams, charset, realm, scheme
 * **CipherSuite**: javaName
 * **ConnectionSpec**: cipherSuites, supportsTlsExtensions, tlsVersions
 * **Cookie**: domain, expiresAt, hostOnly, httpOnly, name, path, persistent, value
 * **Dispatcher**: executorService

          ).hostnameVerifier(RecordingHostnameVerifier())
          .build()
      scheme = "https"
    } else {
      server.protocols = listOf(Protocol.H2_PRIOR_KNOWLEDGE)
      client =
        clientTestRule
          .newClientBuilder()
          .protocols(listOf(Protocol.H2_PRIOR_KNOWLEDGE))
          .build()
      scheme = "http"
    }
  }

  @AfterEach fun tearDown() {

    builder.add("", "pin1", "pin2")
  }

  @Test
  fun challenge() {
    var challenge = Challenge("", mapOf("" to ""))
    challenge = Challenge("", "")
    val scheme: String = challenge.scheme
    val authParams: Map<String?, String> = challenge.authParams
    val realm: String? = challenge.realm
    val charset: Charset = challenge.charset

    * authentication).
    */
    int NTLMSSP_TARGET_TYPE_SHARE = 0x00040000;

    /**
    * Indicates that the NTLM2 signing and sealing scheme should be used
    * for protecting authenticated communications.  This refers to a
    * particular session security scheme, and is not related to the use
    * of NTLMv2 authentication.
    */
    int NTLMSSP_NEGOTIATE_NTLM2 = 0x00080000;

    /**

 * {@code jcifs.smb1.smb1.client.domain} or {@code jcifs.smb1.http.domainController}
 * properties are be specified. <b>With later containers the
 * {@code NtlmHttpFilter} should be used</b>. For custom NTLM HTTP Authentication schemes the {@code NtlmSsp} may be used.
 *
 * <p>
 * Read <a href="../../../ntlmhttpauth.html">jCIFS NTLM HTTP Authentication and the Network Explorer Servlet</a> related information.
 */