* fix kubectl taint e2e flake: add retries for removing taint ([#33872](https://github.com/kubernetes/kubernetes/pull/33872), [@kevin-wangzefeng](https://github.com/kevin-wangzefeng))
* portfordwardtester: avoid data loss during send+close+exit ([#37103](https://github.com/kubernetes/kubernetes/pull/37103), [@sttts](https://github.com/sttts))

pkg net/http, func NewRequestWithContext(context.Context, string, string, io.Reader) (*Request, error)
pkg net/http, method (Header) Clone() Header
pkg net/http, method (*Request) Clone(context.Context) *Request
pkg net/http, method (*Transport) Clone() *Transport
pkg net/http, type Server struct, BaseContext func(net.Listener) context.Context

}

// AddRulesMap - adds rules map for bucket name.
func (evnot *EventNotifier) AddRulesMap(bucketName string, rulesMap event.RulesMap) {
	evnot.Lock()
	defer evnot.Unlock()

	rulesMap = rulesMap.Clone()

	// Do not add for an empty rulesMap.
	if len(rulesMap) == 0 {
		delete(evnot.bucketRulesMap, bucketName)
	} else {
		evnot.bucketRulesMap[bucketName] = rulesMap
	}
}

e.detach(),f}function tb(a){var b=l,c=rb[a];return c||(c=sb(a,b),"none"!==c&&c||(qb=(qb||n("<iframe frameborder='0' width='0' height='0'/>")).appendTo(b.documentElement),b=qb[0].contentDocument,b.write(),b.close(),c=sb(a,b),qb.detach()),rb[a]=c),c}var ub=/^margin/,vb=new RegExp("^("+Q+")(?!px)[a-z%]+$","i"),wb=function(a){return a.ownerDocument.defaultView.getComputedStyle(a,null)};function xb(a,b,c){var d,e,f,g,h=a.style;return c=c||wb(a),c&&(g=c.getPropertyValue(b)||c[b]),c&&(""!==g||n.contains...

 * writes to, reads from, and closes the pipe in a single operation.
 * <li><code>TransactNamedPipe</code> A message-type pipe call that
 * writes to and reads from an existing pipe descriptor in one operation.
 * <li><code>CreateFile</code>, <code>ReadFile</code>,
 * <code>WriteFile</code>, and <code>CloseFile</code> A byte-type pipe can
 * be opened, written to, read from and closed using the standard Win32
 * file operations.

 *      writes to, reads from, and closes the pipe in a single operation.
 * <li> <code>TransactNamedPipe</code> A message-type pipe call that
 *      writes to and reads from an existing pipe descriptor in one operation.
 * <li> <code>CreateFile</code>, <code>ReadFile</code>,
 *      <code>WriteFile</code>, and <code>CloseFile</code> A byte-type pipe can
 *      be opened, written to, read from and closed using the standard Win32

    /** The key of the message: Search Options */
    public static final String LABELS_search_options = "{labels.search_options}";

    /** The key of the message: Close */
    public static final String LABELS_search_options_close = "{labels.search_options_close}";

    /** The key of the message: Clear */

### Volumes
* StorageClass pre-installed and set as default on Azure, AWS, GCE, OpenStack, and vSphere.
  * This is something to pay close attention to if you’ve been using Kubernetes for a while, because it changes the default behavior of PersistentVolumeClaim objects on these clouds.

    assertTrue(Range.closed(5, 6).isConnected(Range.closed(3, 5)));
    assertTrue(Range.closed(3, 5).isConnected(Range.openClosed(5, 5)));
    assertTrue(Range.open(3, 5).isConnected(Range.closed(5, 6)));
    assertTrue(Range.closed(3, 7).isConnected(Range.open(6, 8)));
    assertTrue(Range.open(3, 7).isConnected(Range.closed(5, 6)));
    assertFalse(Range.closed(3, 5).isConnected(Range.closed(7, 8)));

    assertEquals(
        GeneralRange.range(ORDERING, 3, CLOSED, 4, OPEN),
        range.intersect(GeneralRange.range(ORDERING, 3, CLOSED, 4, CLOSED)));
  }

  public void testIntersectOverlappingRange() {
    GeneralRange<Integer> range = GeneralRange.range(ORDERING, 2, OPEN, 4, CLOSED);
    assertEquals(
        GeneralRange.range(ORDERING, 3, CLOSED, 4, CLOSED),