Extensibility. SIG API Machinery added a new class of admission control webhooks (mutating), and brought the admission control webhooks to beta.

### Apps

The core workloads API, which is composed of the DaemonSet, Deployment, ReplicaSet, and StatefulSet kinds, has been promoted to GA stability in the apps/v1 group version. As such, the apps/v1beta2 group version is deprecated, and all new code should use the kinds in the apps/v1 group version.

### Auth

* Fixes an issue with RBAC reconciliation that could cause duplicated subjects in some bootstrapped rolebindings on each restart of the API server. ([#53239](https://github.com/kubernetes/kubernetes/pull/53239), [@enj](https://github.com/enj))

		// Valid object and bucket names but non-existent bucket.
		5: {bucketName: "abc", objName: "def", inputData: []byte(""), expectedError: BucketNotFound{Bucket: "abc"}},

		// Input to replicate Md5 mismatch.
		6: {
			bucketName: bucket, objName: object, inputData: []byte(""),
			inputMeta:     map[string]string{"etag": "d41d8cd98f00b204e9800998ecf8427f"},

 *  Fix: Drop cookies that contain ASCII NULL and other bad characters. Previously such cookies
    would cause OkHttp to crash when they were included in a request.
 *  Fix: Release duplicated multiplexed connections. If we concurrently establish connections to an
    HTTP/2 server, close all but the first connection.
 *  Fix: Fail the HTTP/2 connection if first frame isn't `SETTINGS`.

	}

	for _, testCase := range testCases {
		testCase := testCase
		t.Run(testCase.opts.Name, func(t *testing.T) {
			result := testCase.c.Replicate(testCase.opts)
			if result != testCase.expectedResult {
				t.Errorf("expected: %v, got: %v", testCase.expectedResult, result)
			}
		})
	}
}

func TestHasActiveRules(t *testing.T) {

		nsecret, err := getTokenSigningKey()
		if err != nil {
			return nil, toAPIErrorCode(r.Context(), err)
		}
		// sign root's temporary accounts also with site replicator creds
		if cred.ParentUser != globalActiveCred.AccessKey || cred.IsTemp() {
			secret = nsecret
		}
	}
	if cred.IsServiceAccount() {
		token = cred.SessionToken
		secret = cred.SecretKey
	}

    }
    return !iterable.iterator().hasNext();
  }

  /**
   * Returns an iterable over the merged contents of all given {@code iterables}. Equivalent entries
   * will not be de-duplicated.
   *
   * <p>Callers must ensure that the source {@code iterables} are in non-descending order as this
   * method does not sort its input.
   *

				done()
				if err != nil {
					healingLogIf(ctx, fmt.Errorf("unable to check object %s/%s for abandoned data: %w", i.bucket, i.objectPath(), err), i.objectPath())
				}
			}
		}

		// replicate only if lifecycle rules are not applied.
		done := globalScannerMetrics.time(scannerMetricCheckReplication)
		i.healReplication(ctx, o, oi.Clone(), sizeS)
		done()
	}
	return false, size
}

        // We only check for groupId/artifactId/version/classifier cause if there is another
        // module with the same groupId/artifactId/version/classifier this will fail the build
        // earlier like "Project '...' is duplicated in the reactor.
        // So it is sufficient to check only groupId/artifactId/version/classifier and not the
        // packaging type.
        for (Dependency dependency : dependencies) {

		{bucketName: bucket, objName: "none-object", uploadID: uploadID, PartID: 1, expectedError: fmt.Errorf("%s", "Invalid upload id "+uploadID)},
		// Test case - 12.
		// Input to replicate Md5 mismatch.
		{
			bucketName: bucket, objName: object, uploadID: uploadID, PartID: 1, inputMd5: "d41d8cd98f00b204e9800998ecf8427f",