using these rules.
</p>


<h3 id="Identifiers">Identifiers</h3>

<p>
Identifiers name program entities such as variables and types.
An identifier is a sequence of one or more letters and digits.
The first character in an identifier must be a letter.
</p>
<pre class="ebnf">
identifier = letter { letter | unicode_digit } .
</pre>
<pre>
a
_x9

}

// PodResourceClaim references exactly one ResourceClaim through a ClaimSource.
// It adds a name to it that uniquely identifies the ResourceClaim inside the Pod.
// Containers that need access to the ResourceClaim reference it with this name.
message PodResourceClaim {
  // Name uniquely identifies this resource claim inside the pod.
  // This must be a DNS_LABEL.
  optional string name = 1;

* [stable] You can now customize the iSCSI initiator name per volume in the iSCSI volume plugin.

* [stable] You can now specify the World Wide Identifier (WWID) for the volume identifier in the Fibre Channel volume plugin.

* [beta] Reclaim policy in StorageClass

- CEL CRD validation expressions may now reference existing object state using the identifier `oldSelf`. ([#108073](https://github.com/kubernetes/kubernetes/pull/108073), [@benluddy](https://github.com/benluddy))

- Updated an audit annotation key used by the `…/serviceaccounts/<name>/token` resource handler.
  The annotation used to persist the issued credential identifier is now `authentication.kubernetes.io/issued-credential-id`. ([#123098](https://github.com/kubernetes/kubernetes/pull/123098), [@munnerz](https://github.com/munnerz)) [SIG Auth]

## Non-user-facing Changes

* CRI now uses moutpoint as image filesystem identifier instead of UUID. ([#59475](https://github.com/kubernetes/kubernetes/pull/59475), [@Random-Liu](https://github.com/Random-Liu))

* You must now specify `Node.Spec.ConfigSource.ConfigMap.KubeletConfigKey` when using dynamic Kubelet config to tell the Kubelet which key of the `ConfigMap` identifies its config file. ([#59847](https://github.com/kubernetes/kubernetes/pull/59847), [@mtaufen](https://github.com/mtaufen))

  - Improve tests to work better with constrained resources
  - Add support for node autodiscovery
  - Add support for `--cloud-config`
  - Update group identifier to use for Cluster API annotations
  
  ### Exoscale
  - Add support for Exoscale
  
  ### GCE
  - Decrease the number of GCE Read Requests made while deleting nodes

  - Improve tests to work better with constrained resources
  - Add support for node auto-discovery
  - Add support for `--cloud-config`
  - Update group identifier to use for Cluster API annotations
  
  ### Exoscale
  - Add support for Exoscale
  
  ### GCE
  - Decrease the number of GCE Read Requests made while deleting nodes

### Docs

* 📝 Update data structure and render for external-links. PR [#10495](https://github.com/tiangolo/fastapi/pull/10495) by [@tiangolo](https://github.com/tiangolo).
* ✏️ Fix link to SPDX license identifier in `docs/en/docs/tutorial/metadata.md`. PR [#10433](https://github.com/tiangolo/fastapi/pull/10433) by [@worldworm](https://github.com/worldworm).