```
  "stubDomains": {
    "acme.local": ["1.2.3.4"]
  },
  ```
  is a map of domain to list of nameservers for the domain. This is used
  to inject private DNS domains into the kube-dns namespace. In the above
  example, any DNS requests for *.acme.local will be served by the
  nameserver 1.2.3.4.
  ```
  "upstreamNameservers": ["8.8.8.8", "8.8.4.4"]
  ```

- The PodDisruptionBudget `spec.unhealthyPodEvictionPolicy` field has graduated to GA. This field may be set to `AlwaysAllow` to always allow unhealthy pods covered by the PodDisruptionBudget to be evicted. ([#123428](https://github.com/kubernetes/kubernetes/pull/123428), [@atiratree](https://github.com/atiratree)) [SIG Apps, Auth, Node and Testing]