reclaimed.
  - This feature prevents the node and scheduler from oversubscribing resources
    that are still being used by a pod in the process of being cleaned up.
  - This feature can result in increase of Pod Deletion latency especially if the
    pod has a large filesystem footprint.

### RBAC

### Bug or Regression

- Fix OpenAPI v3 not being cleaned up after deleting APIServices ([#120108](https://github.com/kubernetes/kubernetes/pull/120108), [@tnqn](https://github.com/tnqn)) [SIG API Machinery and Testing]

- Fixes a regression introduced in 1.29 where conntrack entries for UDP connections
  to deleted pods did not get cleaned up correctly, which could (among other things)
  cause DNS problems when DNS pods were restarted. ([#127806](https://github.com/kubernetes/kubernetes/pull/127806), [@danwinship](https://github.com/danwinship)) [SIG Network]

### Bug or Regression

- Fix OpenAPI v3 not being cleaned up after deleting APIServices ([#120108](https://github.com/kubernetes/kubernetes/pull/120108), [@tnqn](https://github.com/tnqn)) [SIG API Machinery and Testing]

- Fix the regression with the slow pods termination. Before this fix pods may take an additional time to terminate - up to one minute. Reversing the change that ensured that CNI resources cleaned up when the pod is removed on API server. ([#97980](https://github.com/kubernetes/kubernetes/pull/97980), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev)) [SIG Node]

        .build()
    val cleaner = get(root.certificate)
    assertThat(cleaner.clean(list(root), "hostname")).isEqualTo(list(root))
  }

  @Test
  fun normalizeUnknownSelfSignedCertificate() {
    val root =
      HeldCertificate.Builder()
        .serialNumber(1L)
        .build()
    val cleaner = get()
    assertFailsWith<SSLPeerUnverifiedException> {
      cleaner.clean(list(root), "hostname")
    }
  }

- Adds additional testing to ensure that udp pods conntrack are cleaned up ([#90180](https://github.com/kubernetes/kubernetes/pull/90180), [@JacobTanenbaum](https://github.com/JacobTanenbaum)) [SIG Architecture, Network and Testing]

- Fix a bug in the IPVS proxier where virtual servers are not cleaned up even though the corresponding Service object was deleted. ([#80942](https://github.com/kubernetes/kubernetes/pull/80942), [@gongguan](https://github.com/gongguan))

                Set<Thread> leaked = new HashSet<>();
                for ( Thread t : threadsAfter ) {
                    if ( t.getName().startsWith("Transport") ) {
                        leaked.add(t);
                    }
                }
                assertTrue("Leaked transport threads, have " + leaked, leaked.size() == 0);
                throw (ConnectionTimeoutException) e.getCause();

		for _, g := range leaked {
			t.Errorf("Leaked goroutine: %v", g)
		}
		return
	}
}

// DetectTestLeak -  snapshots the currently running goroutines and returns a
// function to be run at the end of tests to see whether any
// goroutines leaked.
// Usage: `defer DetectTestLeak(t)()` in beginning line of benchmarks or unit tests.