- Fixed a transient error API requests for custom resources could encounter while changes to the CustomResourceDefinition were being applied. ([#77816](https://github.com/kubernetes/kubernetes/pull/77816), [@liggitt](https://github.com/liggitt))

   * Applies a supplemental hash function to a given hash code, which defends against poor quality
   * hash functions. This is critical when the concurrent hash map uses power-of-two length hash
   * tables, that otherwise encounter collisions for hash codes that do not differ in lower or upper
   * bits.
   *
   * @param h hash code
   */
  static int rehash(int h) {
    // Spread bits to regularize both segment and index locations,

- Resolves a performance regression in default 1.31+ configurations, related to the ConsistentListFromCache feature, where rapid create / update API requests across different namespaces encounter increased latency. ([#130136](https://github.com/kubernetes/kubernetes/pull/130136), [@AwesomePatrol](https://github.com/AwesomePatrol)) [SIG API Machinery]

- Kubernetes cannot distinguish between GCE Zonal PDs and Regional PDs with the same name. To workaround this issue, precreate PDs with unique names. PDs that are dynamically provisioned do not encounter this issue. ([#70716](https://github.com/kubernetes/kubernetes/pull/70716), [@msau42](https://github.com/msau42))

## Known Issues

- kube-apiserver now reported the following metrics for authorization webhook match conditions: - `apiserver_authorization_match_condition_evaluation_errors_total` counter metric labeled by authorizer type and name - `apiserver_authorization_match_condition_exclusions_total` counter metric labeled by authorizer type and name - `apiserver_authorization_match_condition_evaluation_seconds` histogram metric labeled by authorizer type and name.

		switch mv.Value.(type) {
		case KV:
			kvcounter++
		default:
			counter++
		}
		t.Logf("depth=%d offset=%d len=%d (%v)", mv.Depth, mv.Offset, mv.Length, mv.Value)
	}
	if err := decoder.Err(); err != nil {
		t.Fatalf("decoder error: %s", err)
	}
	if kvcounter != 0 {
		t.Fatalf("expected 0 keyvalue items, got %d", kvcounter)
	}
	if counter != 15 {
		t.Fatalf("expected 15 items, got %d", counter)

- Fix kubelet token cache returning stale tokens when service accounts...

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

import static java.util.Objects.requireNonNull;

/**
 * Collects problems that were encountered during project building.
 *
 * @param <P> The type of the problem.
 * @since 4.0.0
 */
@Experimental
public interface ProblemCollector<P extends BuilderProblem> {
    /**

          // we can just do that work here.
          AtomicInteger newCounter = new AtomicInteger(occurrences);
          if ((countMap.putIfAbsent(element, newCounter) == null)
              || countMap.replace(element, existingCounter, newCounter)) {
            return 0;
          }
          break;
        }
      }

          // we can just do that work here.
          AtomicInteger newCounter = new AtomicInteger(occurrences);
          if ((countMap.putIfAbsent(element, newCounter) == null)
              || countMap.replace(element, existingCounter, newCounter)) {
            return 0;
          }
          break;
        }
      }