- Stopped expanding PVCs annotated with node-expand-not-required. ([#131907](https://github.com/kubernetes/kubernetes/pull/131907), [@gnufied](https://github.com/gnufied)) [SIG API Machinery, Etcd, Node, Storage and Testing]

## Changelog since v1.8.10

### Action Required

* ACTION REQUIRED: In-place node upgrades to this release from versions 1.7.14, 1.8.9, and 1.9.4 are not supported if using subpath volumes with PVCs.  Such pods should be drained from the node first. ([#61373](https://github.com/kubernetes/kubernetes/pull/61373), [@msau42](https://github.com/msau42))

### Other notable changes

- Added a feature gate `StatefulSetAutoDeletePVC`, which allows PVCs automatically created for StatefulSet pods to be automatically deleted. ([#99728](https://github.com/kubernetes/kubernetes/pull/99728), [@mattcary](https://github.com/mattcary))

- Add `DataSourceRef` alpha field to PVC spec, which allows contents other than `PVCs` and `VolumeSnapshots` to be data sources. ([#103276](https://github.com/kubernetes/kubernetes/pull/103276), [@bswartz](https://github.com/bswartz))

- The AnyVolumeDataSource feature is now beta, and the feature gate is enabled by default. In order to provide user feedback on PVCs with data sources, deployers must install the VolumePopulators CRD and the data-source-validator controller. ([#108736](https://github.com/kubernetes/kubernetes/pull/108736), [@bswartz](https://github.com/bswartz))

## Known Issues

The alpha version of CSI health monitoring is being released with Kubernetes 1.19. This feature enables CSI Drivers to share abnormal volume conditions from the underlying storage systems with Kubernetes so that they can be reported as events on PVCs or Pods. This feature serves as a stepping stone towards programmatic detection and resolution of individual volume health issues by Kubernetes.

### General ephemeral volumes

 - Reduce state change noise when volume expansion fails. Also mark certain failures as infeasible.