// through the SNI TLS extension, if the ingress controller fulfilling the
  // ingress supports SNI.
  // +optional
  repeated IngressTLS tls = 2;

  // A list of host rules used to configure the Ingress. If unspecified, or
  // no rule matches, all traffic is sent to the default backend.
  // +optional
  repeated IngressRule rules = 3;
}

// IngressStatus describe the current state of the Ingress.

- Added a new `ServiceCIDR` type that allows to dynamically configure the cluster range used to allocate `Service ClusterIPs` addresses. ([#116516](https://github.com/kubernetes/kubernetes/pull/116516), [@aojea](https://github.com/aojea))

- The PodShareProcessNamespace feature to configure PID namespace sharing within a pod has been promoted to beta. ([#66507](https://github.com/kubernetes/kubernetes/pull/66507), [@verb](https://github.com/verb))

## API Changes

`kubelet.config.k8s.io` API group, a significant subset of Kubelet configuration can now be [configured via a versioned config file](https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/). Kubernetes v1.10 adds alpha support for the ability to [configure whether containers in a pod should share a single process namespace](https://github.com/kubernetes/enhancements/issues/495), and the CRI has been upgraded to v1alpha2, which adds [support for Windows Container Configuration](https://github.com/k...

* Fix issue in converting AWS volume ID from mount paths ([#36840](https://github.com/kubernetes/kubernetes/pull/36840), [@jingxu97](https://github.com/jingxu97))
* Correct env var name in configure-helper ([#33848](https://github.com/kubernetes/kubernetes/pull/33848), [@mtaufen](https://github.com/mtaufen))

* The deprecated kubelet --configure-cbr0 flag has been removed, and with that the "classic" networking mode as well.  If you depend on this mode, please investigate whether the other network plugins `kubenet` or `cni` meet your needs. ([#34906](https://github.com/kubernetes/kubernetes/pull/34906),...

- Pod spread constraints have been added...

has entered beta and is available by default. You can now [configure startup, liveness, and readiness probes](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#configure-probes) for your gRPC app
natively within Kubernetes, without exposing an HTTP endpoint or
using an extra executable.

* promote sourceRange into service spec ([#25826](https://github.com/kubernetes/kubernetes/pull/25826), [@freehan](https://github.com/freehan))
* kube-controller-manager: Add configure-cloud-routes option ([#25614](https://github.com/kubernetes/kubernetes/pull/25614), [@justinsb](https://github.com/justinsb))

- HostNetwork pods no longer depend on the PodIPs to be assigned to configure the defined hostAliases on the Pod ([#126460](https://github.com/kubernetes/kubernetes/pull/126460), [@aojea](https://github.com/aojea)) [SIG Network, Node and Testing]