- The deprecated `--etcd-quorum-read` flag has been removed. Quorum reads are now always enabled when fetching data from etcd. Remove the `--etcd-quorum-read` flag from kube-apiserver invocations before upgrading.
- kube-controller-manager
  - The deprecated `--insecure-experimental-approve-all-kubelet-csrs-for-group` flag has been removed.
- kubelet

 *
 * ```
 *   val okHttpClient = OkHttpClient.Builder()
 *     .authenticator(okhttp3.Authenticator.Companion.JAVA_NET_AUTHENTICATOR)
 *     .build()
 * ```
 */
@Deprecated(message = "Use okhttp3.Authenticator.Companion.JAVA_NET_AUTHENTICATOR instead")
class JavaNetAuthenticator : Authenticator {
  @Throws(IOException::class)
  override fun authenticate(
    route: Route?,

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository.metadata;

/**
 * Assists in handling repository metadata.
 *
 */
@Deprecated
class MetadataUtils {

    public static Metadata cloneMetadata(Metadata src) {
        if (src == null) {
            return null;
        }
        return src.clone();
    }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository;

/**
 * ArtifactTransferFailedException
 */
@Deprecated
public class ArtifactTransferFailedException extends Exception {
    public ArtifactTransferFailedException(final String message) {
        super(message);
    }

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.manager;

/**
 */
@Deprecated
public class WagonConfigurationException extends org.apache.maven.repository.legacy.WagonConfigurationException {
    public WagonConfigurationException(String repositoryId, String message, Throwable cause) {

 * under the License.
 */
package org.apache.maven.artifact.metadata;

import org.apache.maven.artifact.Artifact;

/**
 * AbstractArtifactMetadata
 */
@Deprecated
public abstract class AbstractArtifactMetadata
        extends org.apache.maven.repository.legacy.metadata.AbstractArtifactMetadata
        implements org.apache.maven.artifact.metadata.ArtifactMetadata {

 */
package org.apache.maven.repository;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.MavenArtifactRepository;

/**
 * LocalArtifactRepository
 */
@Deprecated
public abstract class LocalArtifactRepository extends MavenArtifactRepository {
    public static final String IDE_WORKSPACE = "ide-workspace";

    @Override
    public abstract Artifact find(Artifact artifact);

 * under the License.
 */
package org.apache.maven.repository;

import java.io.IOException;

/**
 * Signals a failure to store files within the local repository.
 *
 */
@Deprecated
public class LocalRepositoryNotAccessibleException extends IOException {

    public LocalRepositoryNotAccessibleException(String message, Throwable cause) {
        super(message);
        initCause(cause);
    }

 * under the License.
 */
package org.apache.maven.repository.legacy;

import org.apache.maven.wagon.TransferFailedException;

/**
 * Occurs when a download checksum fails.
 *
 */
@Deprecated
public class ChecksumFailedException extends TransferFailedException {
    public ChecksumFailedException(String s) {
        super(s);
    }

    public ChecksumFailedException(String message, Throwable cause) {

import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.artifact.resolver.ArtifactResolver;
import org.apache.maven.repository.legacy.LegacyRepositorySystem;

@Named("classpath")
@Singleton
@Deprecated
public class TestMavenRepositorySystem extends LegacyRepositorySystem {
    @Inject
    private ArtifactResolver artifactResolver;