But it makes working with asynchronous code a lot easier.

This same syntax (or almost identical) was also included recently in modern versions of JavaScript (in Browser and NodeJS).

But before that, handling asynchronous code was quite more complex and difficult.

- Improved performance of the job controller when handling job delete events. ([#127378](https://github.com/kubernetes/kubernetes/pull/127378), [@hakuna-matatah](https://github.com/hakuna-matatah))
- Improved performance of the job controller when handling job update events. ([#127228](https://github.com/kubernetes/kubernetes/pull/127228), [@hakuna-matatah](https://github.com/hakuna-matatah))

## Metrics Request Handling

Each endpoint can be queried as needed via a scrape configuration in Prometheus or a compatible metrics collection tool. You should schedule scrape operations so a prior scrape completes before the next one begins.

* apiserver: fixes handling and logging of panics in REST handlers to prevent crashes ([#71076](https://github.com/kubernetes/kubernetes/pull/71076), [@liggitt](https://github.com/liggitt))

  ) : QueueDispatcher() {
    private var responseIndex = 0

    @Synchronized
    override fun dispatch(request: RecordedRequest): MockResponse {
      // This guarantees a deterministic sequence when handling the canceled request:
      // 1. Server reads request and dequeues first response
      // 2. Client cancels request
      // 3. Server tries to send response on the canceled stream

- Bump debian-base to v1.0.1 and debian-iptables to v11.0.3 ([#88882](https://github.com/kubernetes/kubernetes/pull/88882), [@tallclair](https://github.com/tallclair)) [SIG API Machinery, Cluster Lifecycle, Release and Testing]

     *
     * @param scrollSize The scroll size.
     */
    public void setScrollSize(final int scrollSize) {
        this.scrollSize = scrollSize;
    }

    /**
     * Converter for handling timestamps in OpenSearch.
     */
    protected static class EsTimestampConverter implements Converter {
        /**
         * Creates a new instance of EsTimestampConverter.
         */

## Changelog since v1.18.3

## Changes by Kind

### API Change

- Resolve regression in metadata.managedFields handling in update/patch requests submitted by older API clients ([#92007](https://github.com/kubernetes/kubernetes/pull/92007), [@apelisse](https://github.com/apelisse)) [SIG API Machinery and Testing]

### Feature

- Fixed an issue with stuck connections handling error responses ([#71412](https://github.com/kubernetes/kubernetes/pull/71412), [@liggitt](https://github.com/liggitt))
- apiserver: fixed handling and logging of panics in REST handlers ([#71076](https://github.com/kubernetes/kubernetes/pull/71076), [@liggitt](https://github.com/liggitt))

    Kubernetes-managed containers on the node.
  * It is not compatible with CNI plugins that do not conform to the
    [error handling behavior in the spec](https://github.com/containernetworking/cni/blob/master/SPEC.md#network-configuration-list-error-handling).
    The plugins are being updated to resolve this issue ([#43488](https://github.com/kubernetes/kubernetes/issues/43488)).