* The dynamic Kubelet config feature is now beta, and the DynamicKubeletConfig feature gate is on by default. In order to use dynamic Kubelet config, ensure that the Kubelet's --dynamic-config-dir option is set.  ([#64275](https://github.com/kubernetes/kubernetes/pull/64275), [@mtaufen](https://github.com/mtaufen))

   * bodies may only be used with HTTP/2. Calls to HTTP/1 servers will fail before the HTTP request
   * is transmitted. If you cannot ensure that your client and server both support HTTP/2, do not
   * use this feature.
   *
   * ### Duplex APIs
   *
   * With regular request bodies it is not legal to write bytes to the sink passed to

### Feature

- Feature gates for PortForward (kubectl port-forward) over WebSockets are now enabled by default (Beta).
  - Server-side feature gate: PortForwardWebsocket
  - Client-side (kubectl) feature gate: PORT_FORWARD_WEBSOCKETS environment variable

 *   <li>least-recently-used eviction when a maximum size is exceeded (note that the cache is
 *       divided into segments, each of which does LRU internally)
 *   <li>time-based expiration of entries, measured since last access or last write
 *   <li>keys automatically wrapped in {@code WeakReference}
 *   <li>values automatically wrapped in {@code WeakReference} or {@code SoftReference}

mc: Health data saved to dc-11-health_20200321053323.json.gz
```

The gzipped output contains debugging information for your system

## Decoding Metadata

Metadata is stored in `xl.meta` files for erasure coded objects. Each disk in the set containing the object has this file. The file format is a binary format and therefore requires tools to view values.

### Installing xl-meta

Harshavardhana <******@****.***> 1641955723 -0800

Krishnan Parthasarathi <******@****.***> 1711041695 -0700

  
  Portworx CSI driver is required to enable migration.
  This PR adds support of the `CSIMigrationPortworx` feature gate, which can be enabled by:
  
  1. Adding the feature flag to the kube-controller-manager `--feature-gates=CSIMigrationPortworx=true` 
  2. Adding the feature flag to the kubelet config:
  
  featureGates:

	if unMarshalXLMeta.Erasure.ParityBlocks != jsoniterXLMeta.Erasure.ParityBlocks {
		t.Errorf("Expected the erasure parity blocks to be %v, but got %v.", unMarshalXLMeta.Erasure.ParityBlocks, jsoniterXLMeta.Erasure.ParityBlocks)
	}
	if unMarshalXLMeta.Erasure.BlockSize != jsoniterXLMeta.Erasure.BlockSize {
		t.Errorf("Expected the erasure block size to be %v, but got %v.", unMarshalXLMeta.Erasure.BlockSize, jsoniterXLMeta.Erasure.BlockSize)
	}

CoreDNS is now the default cluster DNS passing all of the scale/resource usage tests
Node-local DNS cache feature is available in Alpha. This feature deploys a lightweight DNS caching Daemonset that avoids the conntrack and converts queries from UDP to more reliable TCP.
PodReady++ feature now has `kubectl` CLI support.