API group): The Horizontal Pod Autoscaling feature now supports custom metrics
(Alpha), allowing you to specify application-level metrics and thresholds to
trigger scaling up and down the number of pods in your application.
  * <strong>New GUI</strong> (dashboard) allows you to get started quickly and enables the same
functionality found in the CLI as a more approachable and discoverable way of

- Fix: set "host is down" as corrupted mount ([#101398](https://github.com/kubernetes/kubernetes/pull/101398), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]

- Output for the `ScalingReplicaSet` event has changed from:
      Scaled <up|down> replica set <replica-set-name> to <new-value> from <old-value>
  to:
      Scaled <up|down> replica set <replica-set-name> from <old-value> to <new-value>. ([#125118](https://github.com/kubernetes/kubernetes/pull/125118), [@jsoref](https://github.com/jsoref)) [SIG Apps and CLI]

02B9..02C1    ; valid                                  # 1.1  MODIFIER LETTER PRIME..MODIFIER LETTER REVERSED GLOTTAL STOP
02C2..02C5    ; valid                  ;      ; NV8    # 1.1  MODIFIER LETTER LEFT ARROWHEAD..MODIFIER LETTER DOWN ARROWHEAD
02C6..02D1    ; valid                                  # 1.1  MODIFIER LETTER CIRCUMFLEX ACCENT..MODIFIER LETTER HALF TRIANGULAR COLON

- Fix a number of race conditions in the kubelet when pods are starting up or shutting down that might cause pods to take a long time to shut down. ([#102344](https://github.com/kubernetes/kubernetes/pull/102344), [@smarterclayton](https://github.com/smarterclayton)) [SIG Apps, Node, Storage and Testing]

* hyperkube

  * The hyperkube image has been slimmed down and no longer includes addon manifests and other various scripts. These were introduced for the now removed docker-multinode setup system. ([#44555](https://github.com/kubernetes/kubernetes/pull/44555), [@luxas](https://github.com/luxas))

    //
    // HttpUrl is quite lenient with what characters it accepts. In particular, characters like '{'
    // and '"' are permitted but unlikely to occur in real-world URLs. Unfortunately we can't just
    // lock it down due to URL templating: "http://{env}.{dc}.example.com".
    UrlComponentEncodingTester
      .newInstance()
      .nonPrintableAscii(Encoding.FORBIDDEN)
      .nonAscii(Encoding.PUNYCODE)
      .override(

32 // KeyboardEvent.which value for space key\nconst TAB_KEYCODE = 9 // KeyboardEvent.which value for tab key\nconst ARROW_UP_KEYCODE = 38 // KeyboardEvent.which value for up arrow key\nconst ARROW_DOWN_KEYCODE = 40 // KeyboardEvent.which value for down arrow key\nconst RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse)\nconst REGEXP_KEYDOWN = new RegExp(`${ARROW_UP_KEYCODE}|${ARROW_DOWN_KEYCODE}|${ESCAPE_KEYCODE}`)\n\nconst CLASS_NAME_DISABLED...

#### New API fields:

relatedTarget: context._element }\n\n      if (event.type === 'click') {\n        relatedTarget.clickEvent = event\n      }\n\n      context._completeHide(relatedTarget)\n    }\n  }\n\n  static dataApiKeydownHandler(event) {\n    // If not an UP | DOWN | ESCAPE key => not a dropdown command\n    // If input/textarea && if key is other than ESCAPE => not a dropdown command\n\n    const isInput = /input|textarea/i.test(event.target.tagName)\n    const isEscapeEvent = event.key === ESCAPE_KEY\n    const...