Node-local DNS cache feature is available in Alpha. This feature deploys a lightweight DNS caching Daemonset that avoids the conntrack and converts queries from UDP to more reliable TCP.
PodReady++ feature now has `kubectl` CLI support.

Progress was made towards finalizing the IPv6 dual stack support KEP and support for topological routing of services.

### SIG Node

This is the first Kubernetes release for this SIG! In v1.12, SIG Cloud Provider focused on building the processes and infrastructure to better support existing and new cloud providers. Some of these initiatives (many of which are still in progress) are:

- Reporting E2E conformance test results to TestGrid from every cloud provider (in collaboration with SIG Testing & SIG Release)

* kubeadm alpha certs command now skip missing files ([#85092](https://github.com/kubernetes/kubernetes/pull/85092), [@fabriziopandini](https://github.com/fabriziopandini))

- ` JobTrackingWithFinalizers` enabled by default. This feature allows to keep track of the Job progress without relying on Pods staying in the apiserver.
   ([#110948](https://github.com/kubernetes/kubernetes/pull/110948), [@alculquicondor](https://github.com/alculquicondor))
- `CSIMigrationAWS` upgraded to GA and locked to true.

### Deployment
* **[beta]** Deployments that cannot make progress in rolling out the newest version will now indicate via the API they are blocked ([docs](https://kubernetes.io/docs/user-guide/deployments/#deployment-status))

### Federation

  <mime-type type="application/vnd.oma.poc.detailed-progress-report+xml"/>
  <mime-type type="application/vnd.oma.poc.final-report+xml"/>
  <mime-type type="application/vnd.oma.poc.groups+xml"/>
  <mime-type type="application/vnd.oma.poc.invocation-descriptor+xml"/>
  <mime-type type="application/vnd.oma.poc.optimized-progress-report+xml"/>
  <mime-type type="application/vnd.oma.xcap-directory+xml"/>

- Fixed a bug in storage-version-migrator-controller that would cause migration attempts to fail if resources were deleted when the migration was in progress. ([#126107](https://github.com/kubernetes/kubernetes/pull/126107), [@enj](https://github.com/enj)) [SIG API Machinery, Apps, Auth and Testing]

* Disable proxy to loopback and linklocal ([#71980](https://github.com/kubernetes/kubernetes/pull/71980), [@micahhausler](https://github.com/micahhausler))
* Do not detach volume if mount in progress ([#71145](https://github.com/kubernetes/kubernetes/pull/71145), [@gnufied](https://github.com/gnufied))

* Fixes spurious 0-length API responses. ([#72856](https://github.com/kubernetes/kubernetes/pull/72856), [@liggitt](https://github.com/liggitt))
* Do not detach volume if mount in progress ([#71145](https://github.com/kubernetes/kubernetes/pull/71145), [@gnufied](https://github.com/gnufied))

  // If allocatedResources is not set, PVC.spec.resources alone is used for quota calculation.
  // If a volume expansion capacity request is lowered, allocatedResources is only
  // lowered if there are no expansion operations in progress and if the actual volume capacity
  // is equal or lower than the requested capacity.
  // This is an alpha field and requires enabling RecoverVolumeExpansionFailure feature.
  // +featureGate=RecoverVolumeExpansionFailure