* Block volumes Support: FC plugin update ([#51493](https://github.com/kubernetes/kubernetes/pull/51493), [@mtanino](https://github.com/mtanino))

* iSCSI volume plugin: iSCSI initiatorname support ([#48789](https://github.com/kubernetes/kubernetes/pull/48789), [@mtanino](https://github.com/mtanino))
* On AttachDetachController node status update, do not retry when node doesn't exist but keep the node entry in cache. ([#50806](https://github.com/kubernetes/kubernetes/pull/50806), [@verult](https://github.com/verult))

credentials configured with `--admission-control-config-file` must include non-default ports in the configured hostnames. For example, a webhook configured to speak to port 8443 on service `mysvc` in namespace `myns` would specify client credentials in a stanza with `name: mysvc.myns.svc:8443`. See https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/#authenticate-apiservers for more details. ([#82252](https://github.com/kubernetes/kubernetes/pull/82252), [@liggitt](h...

## Changelog since v1.6.4

### Other notable changes

* Fix iSCSI iSER mounting. ([#47281](https://github.com/kubernetes/kubernetes/pull/47281), [@mtanino](https://github.com/mtanino))
* Added exponential backoff to Azure cloudprovider ([#46660](https://github.com/kubernetes/kubernetes/pull/46660), [@jackfrancis](https://github.com/jackfrancis))

  * Fix iSCSI iSER mounting. ([#47281](https://github.com/kubernetes/kubernetes/pull/47281), [@mtanino](https://github.com/mtanino))

  * iscsi storage plugin: Fix dangling session when using multiple target portal addresses. ([#46239](https://github.com/kubernetes/kubernetes/pull/46239), [@mtanino](https://github.com/mtanino))