- Added enforcement of an upper cost bound for DRA evaluations of CEL. The API server and scheduler now enforce an upper bound on the cost and runtime steps required for evaluating a CEL expression. ([#128101](https://github.com/kubernetes/kubernetes/pull/128101), [@pohly](https://github.com/pohly)) [SIG API Machinery and Node]

    }

    /**
     * Creates and returns a new instance of {@link ArrayDeque}.
     *
     * @param <E> the element type of {@link ArrayDeque}
     * @param numElements the lower bound of the initial capacity range for the deque
     * @return a new instance of {@link ArrayDeque}
     * @see ArrayDeque#ArrayDeque(int)
     */
    public static <E> ArrayDeque<E> newArrayDeque(final int numElements) {

- Revised the logic for DaemonSet rolling update to exclude nodes if scheduling constraints are not met.
  This eliminates the problem of rolling updates to a DaemonSet getting stuck around tolerations. ([#120792](https://github.com/kubernetes/kubernetes/pull/120792), [@mochizuki875](https://github.com/mochizuki875)) [SIG Apps and Testing]

    }                                                                     \
    if (index < 0 || index >= list->response.size()) {                    \
      status->status = InvalidArgument("index out of bounds");            \
      return err_val;                                                     \
    }                                                                     \

	}
	b1.Flush()
	if w1 != 3 {
		t.Fatalf("flush 1200 + 1389 'x's: got %d writes, want 3", w1)
	}
}

// A writeCountingDiscard is like io.Discard and counts the number of times
// Write is called on it.
type writeCountingDiscard int

func (w *writeCountingDiscard) Write(p []byte) (int, error) {
	*w++
	return len(p), nil
}

type negativeReader int

- `Kubectl describe <type>` and `kubectl top pod` will return a message saying `"No resources found"` or `"No resources found in <namespace> namespace"` if there are no results to display. ([#87527](https://github.com/kubernetes/kubernetes/pull/87527), [@brianpursley](https://github.com/brianpursley)) [SIG CLI]

- A PersistentVolumeClaim may not have been synced to the controller local cache in time if the PersistentVolumeis bound by an external PV binder (such as kube-scheduler), so Kubernetes will now double check if PVC is not found in order to prevent the volume from being incorrectly reclaimed. ([#67062](https://github.com/kubernetes/kubernetes/pull/67062), [@cofyc](https://github.com/cofyc))

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    - `apiserver_flowcontrol_lower_limit_seats`: Configured lower bound on number of execution seats available to each priority level
    - `apiserver_flowcontrol_upper_limit_seats`: Configured upper bound on number of execution seats available to each priority level

- Clarified help message of `--ignore-not-found` flag. Supported `--ignore-not-found` in `watch` operation. ([#132542](https://github.com/kubernetes/kubernetes/pull/132542), [@gemmahou](https://github.com/gemmahou))