// are also valid here.
  optional PersistentVolumeClaimSpec spec = 2;
}

// PersistentVolumeClaimVolumeSource references the user's PVC in the same namespace.
// This volume finds the bound PV and mounts that volume for the pod. A
// PersistentVolumeClaimVolumeSource is, essentially, a wrapper around another
// type of volume that is owned by someone else (the system).

- ScaleIO volumes can now be provisioned without having to first manually create /dev/disk/by-id path on each kubernetes node (if not already...

- Fixed the discoverability of `apiregistration.k8s.io` in `openapi/v3` ([#118879](https://github.com/kubernetes/kubernetes/pull/118879), [@atiratree](https://github.com/atiratree))

- If `kubeadm reset` finds no etcd member ID for the peer it removes during the `remove-etcd-member` phase, it continues immediately to other phases, instead of retrying the phase for up to 3 minutes before continuing. ([#117948](https://github.com/kubernetes/kubernetes/pull/117948),...

- If `kubeadm reset` finds no etcd member ID for the peer it removes during the `remove-etcd-member` phase, it continues immediately to other phases, instead of retrying the phase for up to 3 minutes before continuing. ([#117916](https://github.com/kubernetes/kubernetes/pull/117916),...

- If `kubeadm reset` finds no etcd member ID for the peer it removes during the `remove-etcd-member` phase, it continues immediately to other phases, instead of retrying the phase for up to 3 minutes before continuing. ([#118057](https://github.com/kubernetes/kubernetes/pull/118057),...

- If `kubeadm reset` finds no etcd member ID for the peer it removes during the `remove-etcd-member` phase, it continues immediately to other phases, instead of retrying the phase for up to 3 minutes before continuing. ([#118192](https://github.com/kubernetes/kubernetes/pull/118192),...

- The DaemonSet, Deployment, ReplicaSet, and StatefulSet kinds
  are now in the apps/v1beta2 group and version.

- The apps/v1beta2 group version adds a Scale subresource for the StatefulSet
kind.

- All kinds in the apps/v1beta2 group version add a corresponding conditions
  kind.

#### Behavioral Changes

 - For all kinds in the API group version, a spec.selector default value is no longer

* Extended the Stackdriver Metadata Agent by adding a new Deployment for ingesting unscheduled pods and services.   ([#62043](https://github.com/kubernetes/kubernetes/pull/62043), [@supriyagarg](https://github.com/supriyagarg))
* Added all kinds of resource objects' statuses in HPA description. ([#59609](https://github.com/kubernetes/kubernetes/pull/59609), [@zhangxiaoyu-zidif](https://github.com/zhangxiaoyu-zidif))

</ol>

<p>
Blocks nest and influence <a href="#Declarations_and_scope">scoping</a>.
</p>


<h2 id="Declarations_and_scope">Declarations and scope</h2>

<p>
A <i>declaration</i> binds a non-<a href="#Blank_identifier">blank</a> identifier to a
<a href="#Constant_declarations">constant</a>,
<a href="#Type_declarations">type</a>,
<a href="#Type_parameter_declarations">type parameter</a>,