* Allow attach of volumes to multiple nodes for vSphere ([#51066](https://github.com/kubernetes/kubernetes/pull/51066), [@BaluDontu](https://github.com/BaluDontu))
* vSphere: Fix attach volume failing on the first try. ([#51217](https://github.com/kubernetes/kubernetes/pull/51217), [@BaluDontu](https://github.com/BaluDontu))

* Fix initial exec terminal dimensions. ([#51126](https://github.com/kubernetes/kubernetes/pull/51126), [@chen-anders](https://github.com/chen-anders))
* vSphere: Fix attach volume failing on the first try. ([#51218](https://github.com/kubernetes/kubernetes/pull/51218), [@BaluDontu](https://github.com/BaluDontu))



# v1.6.9

[Documentation](https://docs.k8s.io) & [Examples](https://releases.k8s.io/release-1.6/examples)

### Deprecation

- Aborting the drain command in a list of nodes will be deprecated. The new behavior will make the drain command go through all nodes even if one or more nodes failed during the drain. For now, users can try such experience by enabling --ignore-errors flag. ([#98203](https://github.com/kubernetes/kubernetes/pull/98203), [@yuzhiquan](https://github.com/yuzhiquan))

### Structured logging graduate to Beta

Structured logging reached its Beta milestone. Most log messages from kubelet and kube-scheduler have been converted. Users are encouraged to try out JSON output or parsing of the structured text format and provide feedback on possible solutions for the open issues, such as handling of multi-line strings in log values.

- Improved `kubectl auth can-i` command by warning users when they try to access a resource out of scope. ([#76014](https://github.com/kubernetes/kubernetes/pull/76014), [@WanLinghao](https://github.com/WanLinghao))

- Kubernetes will try to acquire the iptables lock every 100 msec during 5 seconds instead of every second. This is especially useful for environments using kube-proxy in iptables mode with a high churn rate of services. ([#85771](https://github.com/kubernetes/kubernetes/pull/85771),...

  ([#79073](https://github.com/kubernetes/kubernetes/pull/79073), [@rafatio](https://github.com/rafatio))
- Fix kubelet NodeLease potential performance issues. Kubelet now will try to update lease using cached one instead of get from API Server every time. ([#81174](https://github.com/kubernetes/kubernetes/pull/81174), [@answer1991](https://github.com/answer1991))

* Kubernetes will try to read the openstack auth config from the client config and fall back to read from the environment variables if the auth config is not available. ([#60200](https://github.com/kubernetes/kubernetes/pull/60200), [@dixudx](https://github.com/dixudx))...

### PID Limits graduates to General Availability

* Fix data race during addition of new CRD ([#50098](https://github.com/kubernetes/kubernetes/pull/50098), [@nikhita](https://github.com/nikhita))
* Do not try to run preStopHook when the gracePeriod is 0 ([#49449](https://github.com/kubernetes/kubernetes/pull/49449), [@dhilipkumars](https://github.com/dhilipkumars))