</pre>


<h3 id="Receive_operator">Receive operator</h3>

<p>
For an operand <code>ch</code> whose <a href="#Core_types">core type</a> is a
<a href="#Channel_types">channel</a>,
the value of the receive operation <code>&lt;-ch</code> is the value received
from the channel <code>ch</code>. The channel direction must permit receive operations,
and the type of the receive operation is the element type of the channel.

  - The `name` field for specified webhooks must be unique for `MutatingWebhookConfiguration` and `ValidatingWebhookConfiguration` objects created via `admissionregistration.k8s.io/v1`

        <match value="\nDelivered-To: " type="string" offset="32:256"/>
        <match value="\nReceived: by " type="string" offset="32:256"/>
        <match value="\nReceived: via " type="string" offset="32:256"/>
        <match value="\nReceived: from " type="string" offset="32:256"/>
        <match value="\nMime-Version: " type="string" offset="32:256"/>

* Fixes a regression proxying responses from aggregated API servers which could cause watch requests to hang until the first event was received ([#75887](https://github.com/kubernetes/kubernetes/pull/75887), [@liggitt](https://github.com/liggitt))

- Fixed a regression error when proxying responses from aggregated API servers, which could cause watch requests to hang until the first event was received. ([#75887](https://github.com/kubernetes/kubernetes/pull/75887), [@liggitt](https://github.com/liggitt))

- Improved misleading message, in case of no metrics received for the `HPA` controlled pods. ([#114740](https://github.com/kubernetes/kubernetes/pull/114740), [@kushagra98](https://github.com/kushagra98))

* Custom resources can now be submitted to and received from the API server in application/yaml format, consistent with other API resources. ([#58260](https://github.com/kubernetes/kubernetes/pull/58260), [@liggitt](https://github.com/liggitt))

### Network

- Client-go/reflector: warns when the bookmark event for initial events hasn't been received ([#124614](https://github.com/kubernetes/kubernetes/pull/124614), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery]

- Apiserver add a new flag --goaway-chance which is the fraction of requests that will be closed gracefully(GOAWAY) to prevent HTTP/2 clients from getting stuck on a single apiserver. 
  After the connection closed(received GOAWAY), the client's other in-flight requests won't be affected, and the client will reconnect. 
  The flag min value is 0 (off), max is .02 (1/50 requests); .001 (1/1000) is a recommended starting point.

### Failing Test

- E2e tests: fixed bug in the e2e image `agnhost:2.38` which hangs instead of exiting if a `SIGTERM` signal is received and the `shutdown-delay` option is `0`. ([#110214](https://github.com/kubernetes/kubernetes/pull/110214), [@aojea](https://github.com/aojea))