- github.com/gogo/protobuf: [v1.3.1 → v1.3.2](https://github.com/gogo/protobuf/compare/v1.3.1...v1.3.2)
- github.com/golang/mock: [v1.4.1 → v1.4.4](https://github.com/golang/mock/compare/v1.4.1...v1.4.4)
- github.com/google/cadvisor: [v0.38.5 → v0.39.0](https://github.com/google/cadvisor/compare/v0.38.5...v0.39.0)

    * inside of which a write lock was intended to prevent races against
    * VM creation, but the usage of the sync.RWMutex type is incorrect,
    * plus is placed in a defer call so the locking is effectively
    * nonexistent.  This patch adds an anonymous function call inside
    * the loop to correctly handle acquiring the write lock with deferred

### OpenStack

In this cycle, SIG OpenStack focused on configuration simplification through smarter defaults and the use of auto-detection wherever feasible (Block Storage API versions, Security Groups) as well as updating API support, including:

*   Block Storage (Cinder) V3 is now supported.
*   Load Balancer (Octavia) V2 is now supported, in addition to Neutron LBaaS V2.
*   Neutron LBaas V1 support has been removed.

### Bug or Regression

- Allow deletion of pods that use raw block volumes on node reboot ([#122211](https://github.com/kubernetes/kubernetes/pull/122211), [@gnufied](https://github.com/gnufied)) [SIG Node and Storage]

([#63176](https://github.com/kubernetes/kubernetes/pull/63176), [@bswartz](https://github.com/bswartz))

* Make addon-manager cross-platform and use it with hyperkube ([#25631](https://github.com/kubernetes/kubernetes/pull/25631), [@luxas](https://github.com/luxas))
* kubelet: Optionally, have kubelet exit if lock file contention is observed, using --exit-on-lock-contention flag ([#25596](https://github.com/kubernetes/kubernetes/pull/25596), [@derekparker](https://github.com/derekparker))

- Removed withdrawn feature `NetworkPolicyStatus`. ([#115843](https://github.com/kubernetes/kubernetes/pull/115843), [@rikatz](https://github.com/rikatz))

    * inside of which a write lock was intended to prevent races against
    * VM creation, but the usage of the sync.RWMutex type is incorrect,
    * plus is placed in a defer call so the locking is effectively
    * nonexistent.  This patch adds an anonymous function call inside
    * the loop to correctly handle acquiring the write lock with deferred

- local: support local filesystem volume with block resource reconstruction ([#84218](https://github.com/kubernetes/kubernetes/pull/84218), [@cofyc](https://github.com/cofyc))

SIG Storage made a lot of progress in the 1.18 release.
In particular, the following storage features are moving to GA in Kubernetes 1.18:
- Raw Block Support: Allow volumes to be surfaced as block devices inside containers instead of just mounted filesystems.
- Volume Cloning: Duplicate a PersistentVolumeClaim and underlying storage volume using the Kubernetes API via CSI.