* When performing a GET then PUT, the kube-apiserver must write the canonical representation of the object to etcd if the current value does not match. That allows external agents to migrate content in etcd from one API version to another, across different storage types, or across varying encryption levels. This fixes a bug introduced in 1.5 where we unintentionally stopped...

func (kvs KVS) GetWithDefault(key string, defaultKVS KVS) string {
	v := kvs.Get(key)
	if len(v) == 0 {
		return defaultKVS.Get(key)
	}
	return v
}

// Keys returns the list of keys for the current KVS
func (kvs KVS) Keys() []string {
	keys := make([]string, len(kvs))
	var foundComment bool
	for i := range kvs {
		if kvs[i].Key == madmin.CommentKey {
			foundComment = true
		}
		keys[i] = kvs[i].Key

 * of {@code Comparator} for pre-Java-8 users, in the same sense that {@link FluentIterable} is an
 * enriched {@link Iterable} for pre-Java-8 users.
 *
 * <h3>Three types of methods</h3>
 *
 * Like other fluent types, there are three types of methods present: methods for <i>acquiring</i>,
 * <i>chaining</i>, and <i>using</i>.
 *
 * <h4>Acquiring</h4>
 *
 * <p>The common ways to get an instance of {@code Ordering} are:
 *

     * entries are sorted by value. If a key was added more than once, it appears in iteration order
     * based on the first time it was added, again unless {@link #orderEntriesByValue} was called.
     *
     * <p>In the current implementation, all values associated with a given key are stored in the
     * {@code Builder} object, even though only one of them will be used in the built map. If there

    - [Server Binaries](#server-binaries-12)
    - [Node Binaries](#node-binaries-12)
- [Kubernetes 1.13 Release Notes](#kubernetes-113-release-notes)
  - [Security Content](#security-content)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST do this before you upgrade)](#no-really-you-must-do-this-before-you-upgrade)
  - [Known Issues](#known-issues)
  - [Deprecations](#deprecations)

    - [Etcd v3.5.[0-2] data corruption](#etcd-v350-2-data-corruption)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
  - [Changes by Kind](#changes-by-kind-16)
    - [Deprecation](#deprecation)

  - [Continued improvement of CSI](#continued-improvement-of-csi)
    - [Additional Notable Feature Updates](#additional-notable-feature-updates)
  - [Known Issues](#known-issues)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
      - [API Machinery](#api-machinery)
      - [Apps](#apps)
      - [Auth](#auth)

	for idx, client := range sys.peerClients {
		if client == nil {
			continue
		}
		client := client
		ng.Go(GlobalContext, func() error {
			// force == true preserves the current behavior
			return client.SignalService(sig, "", false, nil)
		}, idx, *client.host)
	}
	return ng.Wait()
}

// SignalServiceV2 - calls signal service RPC call on all peers with v2 API

or GA.
  * New Flex Volume Plugin enables users to use out-of-process volume plugins that
are installed to “/usr/libexec/kubernetes/kubelet-plugins/volume/exec/” on

	case errors.Is(err, errDiskAccessDenied):
		// Show a descriptive error with a hint about how to fix it.
		var username string
		if u, err := user.Current(); err == nil {
			username = u.Username
		} else {
			username = "<your-username>"
		}
		var hint string
		if endpoint.URL != nil {