Kubernetes Release 0.16.0 (Continued)

- Add PortForward to runtime API. [#7391](https://github.com/GoogleCloudPlatform/kubernetes/pull/7391) (vmarmol) - kube-proxy uses token to access port 443 of apiserver [#7303](https://github.com/GoogleCloudPlatform/kubernetes/pull/7303) (erictune) - Move the logging-related directories to where I think they belong [#7014](https://github.com/GoogleCloudPlatform/kubernetes/pull/7014) (a-robinson) - Make client service requests use the default timeout now that external load balancers are created asynchronously [#6870](https://github.com/GoogleCloudPlatform/kubernetes/pull/6870) (a-robinson) - Fix bug in kube-proxy of not updating iptables rules if a service's public IPs change [#6123](https://github.com/GoogleCloudPlatform/kubernetes/pull/6123)(a-robinson) - PersistentVolumeClaimBinder [#6105](https://github.com/GoogleCloudPlatform/kubernetes/pull/6105) (markturansky) - Fixed validation message when trying to submit incorrect secret [#7356](https://github.com/GoogleCloudPlatform/kubernetes/pull/7356) (soltysh) - First step to supporting multiple k8s clusters [#6006](https://github.com/GoogleCloudPlatform/kubernetes/pull/6006) (justinsb) - Parity for namespace handling in secrets E2E [#7361](https://github.com/GoogleCloudPlatform/kubernetes/pull/7361) (pmorie) - Add cleanup policy to RollingUpdater [#6996](https://github.com/GoogleCloudPlatform/kubernetes/pull/6996) (ironcladlou) - Use narrowly scoped interfaces for client access [#6871](https://github.com/GoogleCloudPlatform/kubernetes/pull/6871) (ironcladlou) - Warning about Critical bug in the GlusterFS Volume Plugin [#7319](https://github.com/GoogleCloudPlatform/kubernetes/pull/7319) (wattsteve) - Rolling update - First part of improved rolling update, allow dynamic next replication controller generation. [#7268](https://github.com/GoogleCloudPlatform/kubernetes/pull/7268) (brendandburns) - Further implementation of rolling-update, add rename [#7279](https://github.com/GoogleCloudPlatform/kubernetes/pull/7279) (brendandburns) - Added basic apiserver authz tests. [#7293](https://github.com/GoogleCloudPlatform/kubernetes/pull/7293) (ashcrow) - Retry pod update on version conflict error in e2e test. [#7297](https://github.com/GoogleCloudPlatform/kubernetes/pull/7297) (quinton-hoole) - Add "kubectl validate" command to do a cluster health check. [#6597](https://github.com/GoogleCloudPlatform/kubernetes/pull/6597) (fabioy) - coreos/azure: Weave version bump, various other enhancements [#7224](https://github.com/GoogleCloudPlatform/kubernetes/pull/7224) (errordeveloper)

This section of the Kubernetes 0.16.0 release notes highlights further bug fixes, enhancements, and new features. It includes additions like PortForward to the runtime API, kube-proxy using tokens for apiserver access, improvements to rolling updates, a "kubectl validate" command for cluster health checks, and a warning about a critical bug in the GlusterFS Volume Plugin, among other fixes and enhancements.