// +optional
  optional string revision = 2;

  // directory is the target directory name.
  // Must not contain or start with '..'.  If '.' is supplied, the volume directory will be the
  // git repository.  Otherwise, if specified, the volume will contain the git repository in
  // the subdirectory with the given name.
  // +optional
  optional string directory = 3;
}

([#58973](https://github.com/kubernetes/kubernetes/pull/58973), [@verb](https://github.com/verb))

* The default Flexvolume plugin directory for COS images on GCE has changed to `/home/kubernetes/flexvolume`, rather than `/etc/srv/kubernetes/kubelet-plugins/volume/exec`. Existing Flexvolume installations in clusters using COS images must be moved to the new directory, and installation processes must be updated with the new path. ([#58171](https://github.com/kubernetes/kubernetes/pull/58171), [@v...

Ephemeral Volume](https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/596-csi-inline-volumes) feature allows CSI volumes to be specified directly in the pod specification for ephemeral use cases. They can be used to inject arbitrary states, such as configuration, secrets, identity, variables or similar information, directly inside pods using a mounted volume. This was initially introduced in 1.15 as an alpha feature, and it moved to GA. This feature is used by some CSI drivers...

- Kubeadm will cleanup the stale data on best effort basis. Stale data will be removed when each reset phase are executed, default etcd data directory will be cleanup when the `remove-etcd-member` phase are executed. ([#110972](https://github.com/kubernetes/kubernetes/pull/110972), [@chendave](https://github.com/chendave)) [SIG Cluster Lifecycle]

- Fix kubelet fail to delete orphaned pod directory when the kubelet's pods directory (default is `/var/lib/kubelet/pods`) symbolically links to another disk device's directory ([#79094](https://github.com/kubernetes/kubernetes/pull/79094), [@gaorong](https://github.com/gaorong))

## Testing

- Implemented alpha support for a drop-in kubelet configuration directory. ([#119390](https://github.com/kubernetes/kubernetes/pull/119390), [@sohankunkerkar](https://github.com/sohankunkerkar))

* fix kubelet fail to delete orphaned pod directory when the kubelet's pods directory (default is "/var/lib/kubelet/pods") symbolically links to another disk device's directory ([#79094](https://github.com/kubernetes/kubernetes/pull/79094), [@gaorong](https://github.com/gaorong))

- Kubernetes is now built with Go 1.18.8 ([#113593](https://github.com/kubernetes/kubernetes/pull/113593), [@xmudrii](https://github.com/xmudrii)) [SIG Release and Testing]

### Bug or Regression

- Consider only plugin directory and not entire kubelet root when cleaning up mounts ([#112920](https://github.com/kubernetes/kubernetes/pull/112920), [@mattcary](https://github.com/mattcary)) [SIG Storage]

- Volume attach or publish operation will not fail at `kubelet` if target path directory already exists on the node. ([#119735](https://github.com/kubernetes/kubernetes/pull/119735), [@akankshapanse](https://github.com/akankshapanse))

- Fix: After a Node is down and take some time to get back to up again, the mount point of the evicted Pods cannot be cleaned up successfully. (#111933) Meanwhile Kubelet will print the log `Orphaned pod "xxx" found, but error not a directory occurred when trying to remove the volumes dir` every 2 seconds. (#105536) ([#116134](https://github.com/kubernetes/kubernetes/pull/116134), [@cvvz](https://github.com/cvvz)) [SIG Node and Storage]