Kubernetes 1.11 also makes it easier to see what's happening, as audit events can now be annotated with information about how an API request was handled:

- Support for go modules in Kubernetes Core.
- Continued preparation for cloud provider extraction and code organization.  The cloud provider code has been moved to kubernetes/legacy-cloud-providers for easier removal later and external consumption.
- Kubectl [get and describe](https://github.com/kubernetes/enhancements/issues/515) now works with extensions

### Testing

- e2e storage tests now run faster and are easier to read ([#72434](https://github.com/kubernetes/kubernetes/pull/72434), [@pohly](https://github.com/pohly))

higher levels of resource utilization and availability.
These features are in alpha. SIG Scheduling also improved the internal APIs for scheduling and made them easier for other components and external schedulers to use.

[SIG Scheduling]: https://github.com/kubernetes/community/tree/master/sig-scheduling

### SIG Storage

- Previously, the pod name and namespace were eliminated in the event log message. This PR attempts to add the preemptor pod UID in the preemption event message logs for easier debugging and safer transparency. ([#119971](https://github.com/kubernetes/kubernetes/pull/119971), [@kwakubiney](https://github.com/kwakubiney)) [SIG Scheduling]

- The `kubelet` now reports distinguishes log messages about certificate rotation for its client cert and server cert separately to make debugging problems with one or the other easier. ([#101252](https://github.com/kubernetes/kubernetes/pull/101252), [@smarterclayton](https://github.com/smarterclayton))

#### **Cloud Provider Integration**

*   Added `cloud-controller-manager` to `hyperkube`. This is useful as a number of deployment tools run all of the kubernetes components from the `hyperkube `image/binary. It also makes testing easier as a single binary/image can be built and pushed quickly.  ([#54197](https://github.com/kubernetes/kubernetes/pull/54197),[ @colemickens](https://github.com/colemickens))

* Add apiserver metric for number of requests dropped because of inflight limit, making it easier to figure out on which dimension the master is overloaded. ([#58340](https://github.com/kubernetes/kubernetes/pull/58340), [@gmarek](https://github.com/gmarek))

* The [`kubefed` federation bootstrap tool](https://kubernetes.io/docs/tutorials/federation/set-up-cluster-federation-kubefed/) has also graduated to beta.
* Interaction with container runtimes is now through the CRI interface, enabling easier integration of runtimes with the kubelet. Docker remains the default runtime via Docker-CRI (which moves to beta).
  * **WARNING:** A [known issue](https://github.com/kubernetes/kubernetes/issues/44041)

* A new client `k8s.io/client-go/metadata.Client` has been added for accessing objects generically. This client makes it easier to retrieve only the metadata (the `metadata` sub-section) from resources on the cluster in an efficient manner for use cases that deal with objects generically, like the garbage collector, quota, or the namespace controller. The client asks the server...