* [stable] You can now customize the iSCSI initiator name per volume in the iSCSI volume plugin.

* [stable] You can now specify the World Wide Identifier (WWID) for the volume identifier in the Fibre Channel volume plugin.

* [beta] Reclaim policy in StorageClass

  - Added scheduler-owned field in `ResourceClaim.Status` to specify how much device capacity is reserved for a specific request.
  - Added an additional identifier to `ResourceClaim.Status` for the device supports multiple allocations.

- CEL CRD validation expressions may now reference existing object state using the identifier `oldSelf`. ([#108073](https://github.com/kubernetes/kubernetes/pull/108073), [@benluddy](https://github.com/benluddy))

- Updated an audit annotation key used by the `…/serviceaccounts/<name>/token` resource handler.
  The annotation used to persist the issued credential identifier is now `authentication.kubernetes.io/issued-credential-id`. ([#123098](https://github.com/kubernetes/kubernetes/pull/123098), [@munnerz](https://github.com/munnerz)) [SIG Auth]

## Non-user-facing Changes

* CRI now uses moutpoint as image filesystem identifier instead of UUID. ([#59475](https://github.com/kubernetes/kubernetes/pull/59475), [@Random-Liu](https://github.com/Random-Liu))

  - Improve tests to work better with constrained resources
  - Add support for node autodiscovery
  - Add support for `--cloud-config`
  - Update group identifier to use for Cluster API annotations
  
  ### Exoscale
  - Add support for Exoscale
  
  ### GCE
  - Decrease the number of GCE Read Requests made while deleting nodes

  - Improve tests to work better with constrained resources
  - Add support for node auto-discovery
  - Add support for `--cloud-config`
  - Update group identifier to use for Cluster API annotations
  
  ### Exoscale
  - Add support for Exoscale
  
  ### GCE
  - Decrease the number of GCE Read Requests made while deleting nodes

  attempted first, and if it fails with a corrupt resource error then it triggers unsafe delete.
  In addition, when this feature is enabled, the 'details' field of 'Status' from the LIST response
  includes information that identifies the corrupt object(s).
  NOTE: unsafe deletion ignores finalizer constraints, and skips precondition checks.
  WARNING: this may break the workload associated with the resource being unsafe-deleted, if it relies on

## Introduction to 1.9.0

Kubernetes version 1.9 includes new features and enhancements, as well as fixes to identified issues. The release notes contain a brief overview of the important changes introduced in this release. The content is organized by Special Interest Group ([SIG](https://github.com/kubernetes/community/blob/master/sig-list.md)).

* You must now specify `Node.Spec.ConfigSource.ConfigMap.KubeletConfigKey` when using dynamic Kubelet config to tell the Kubelet which key of the `ConfigMap` identifies its config file. ([#59847](https://github.com/kubernetes/kubernetes/pull/59847), [@mtaufen](https://github.com/mtaufen))