</p>


<h3 id="Close">Close</h3>

<p>
For a channel <code>ch</code>, the built-in function <code>close(ch)</code>
records that no more values will be sent on the channel.
It is an error if <code>ch</code> is a receive-only channel.
Sending to or closing a closed channel causes a <a href="#Run_time_panics">run-time panic</a>.
Closing the nil channel also causes a <a href="#Run_time_panics">run-time panic</a>.

channel

// charity : Public Interest Registry
// https://www.iana.org/domains/root/db/charity.html
charity

// chase : JPMorgan Chase Bank, National Association
// https://www.iana.org/domains/root/db/chase.html
chase

// chat : Binky Moon, LLC
// https://www.iana.org/domains/root/db/chat.html
chat

// cheap : Binky Moon, LLC

### Cloud Provider

- Fixed a bug that caused PV allocation on non-English vSphere installations to fail  ([#73115](https://github.com/kubernetes/kubernetes/pull/73115), [@alvaroaleman](https://github.com/alvaroaleman))

### Cluster Lifecycle

    * "volume.alpha.kubernetes.io/storage-class" does not have any special meaning. A default storage class
    * and  DefaultStorageClass admission plugin can be used to preserve similar behavior of Kubernetes cluster,
    * see https://kubernetes.io/docs/user-guide/persistent-volumes/#class-1 for details.

following in mind:

* **JSON configuration files that contain fields with incorrect case will no longer be valid. You must correct these files before upgrading.** When specifying keys in JSON resource definitions during direct API server communication, the keys are case-sensitive. A bug introduced in Kubernetes 1.8 caused the API server to accept a request with incorrect case and coerce it to correct case, but this behaviour has been fixed in 1.11 and the API server will once again be enforcing...

### Other notable changes

* Kubernetes json deserializer is now case-sensitive to restore compatibility with pre-1.8 servers. ([#65157](https://github.com/kubernetes/kubernetes/pull/65157), [@caesarxuchao](https://github.com/caesarxuchao))
    * If your config files contains fields with wrong case, the config files will be now invalid.

- Dynamic provisions that create iSCSI PVs can now ensure that multipath is used by specifying 2 or more target portals in the PV, which will cause kubelet to wait up to 10 seconds for the multipath device. PVs with just one portal continue to work...

- Fixed a data race in kubelet image manager that can cause static pod workers to silently stop working. ([#88915](https://github.com/kubernetes/kubernetes/pull/88915), [@roycaihw](https://github.com/roycaihw)) [SIG Node]

- Fixed a data race in kubelet image manager that can cause static pod workers to silently stop working. ([#88915](https://github.com/kubernetes/kubernetes/pull/88915), [@roycaihw](https://github.com/roycaihw)) [SIG Node]

  Don't use these flags. Using deprecated flags causes the server to print a warning. Using a removed flag causes the server to abort the startup.

* The following deprecated flags were removed from `kubelet`:

  * `api-servers` - add apiserver addresses to the kubeconfig file instead.

  Don't use these flags. Using deprecated flags causes the kubelet to print a warning. Using a removed flag causes the kubelet to abort the startup.