- Added new config option `delayCacheUntilActive` to `KubeSchedulerConfiguration` that can provide a tradeoff between memory efficiency and scheduling speed when their leadership is updated in `kube-scheduler` ([#115754](https://github.com/kubernetes/kubernetes/pull/115754), [@linxiulei](https://github.com/linxiulei)) [SIG API Machinery and Scheduling]

center;\n  -ms-flex-pack: justify;\n  justify-content: space-between;\n  padding: 0.5rem 0.5rem;\n}\n\n.navbar .container,\n.navbar .container-fluid, .navbar .container-sm, .navbar .container-md, .navbar .container-lg, .navbar .container-xl {\n  display: -ms-flexbox;\n  display: flex;\n  -ms-flex-wrap: wrap;\n  flex-wrap: wrap;\n  -ms-flex-align: center;\n  align-items: center;\n  -ms-flex-pack: justify;\n  justify-content: space-between;\n}\n\n.navbar-brand {\n  display: inline-block;\n  padding-top:...

* Protobuf serialization does not distinguish between `[]` and `null`.
API fields previously capable of storing and returning either `[]` and `null` via JSON API requests (for example, the Endpoints `subsets` field)

func (j *xlMetaV2Object) Signature() [4]byte {
	// Shallow copy
	c := *j
	// Zero fields that will vary across disks
	c.ErasureIndex = 0

	// Nil 0 size allownil, so we don't differentiate between nil and 0 len.
	allEmpty := true
	for _, tag := range c.PartETags {
		if len(tag) != 0 {
			allEmpty = false
			break
		}
	}
	if allEmpty {
		c.PartETags = nil
	}

## Version 3.4.0-RC1

_2016-07-02_

 *  **We’ve rewritten HttpURLConnection and HttpsURLConnection.** Previously we
    shared a single HTTP engine between two frontend APIs: `HttpURLConnection`
    and `Call`. With this release we’ve rearranged things so that the
    `HttpURLConnection` frontend now delegates to the `Call` APIs internally.

- Upgraded the `PodObservedGenerationTracking` feature to beta in `v1.34`...

- Added an extra line between two different key value pairs under data when running `kubectl describe configmap`. ([#123597](https://github.com/kubernetes/kubernetes/pull/123597), [@siddhantvirus](https://github.com/siddhantvirus))
- Added kubectl support for:

   * @param size the number of elements per combination
   * @return the set of all combinations of {@code size} elements from {@code set}
   * @throws IllegalArgumentException if {@code size} is not between 0 and {@code set.size()}
   *     inclusive
   * @throws NullPointerException if {@code set} is or contains {@code null}
   * @since 23.0
   */
  public static <E> Set<Set<E>> combinations(Set<E> set, int size) {

  - [alpha] Simplifies bootstrapping of TLS secured communication between the API server and kubelet. ([docs](http://kubernetes.io/docs/admin/master-node-communication/#kubelet-tls-bootstrap)) ([kubernetes/features#43](https://github.com/kubernetes/enhancements/issues/43))

					iamLogIf(ctx, fmt.Errorf("Failure in loading watch event: %v", err), logger.WarningKind)
				}
			}
		}()
	}

	r := rand.New(rand.NewSource(time.Now().UnixNano()))

	// Calculate the waitInterval between periodic refreshes so that each server
	// independently picks a (uniformly distributed) random time in an interval
	// of size = baseInterval.
	//
	// For example:
	//