* kubectl built for darwin from darwin now enables cgo to use the system-native C libraries for DNS resolution. Cross-compiled kubectl (e.g. from an official kubernetes release) still uses the go-native netgo DNS implementation.  ([#64219](https://github.com/kubernetes/kubernetes/pull/64219), [@ixdy](https://github.com/ixdy))

  - Add support for journald.
  - The ability to monitor any system daemon logs. Previously only kernel
    logs were supported.
  - The ability to be deployed and run as a native daemon.
* **[alpha]** Critical Pods: When feature gate "ExperimentalCriticalPodAnnotation" is
  set to true, the system will guarantee scheduling and admission of pods with

  * [stable] [containerd](https://github.com/containerd/containerd): containerd v1.1 natively supports CRI v1alpha2 now, so users can use Kubernetes v1.10 with containerd v1.1 directly, without having to use the intermediate cri-containerd daemon. [All Kubernetes 1.10 tests passed](https://k8s-testgrid.appspot.com/sig-node-containerd). [@Random-Liu]...

consistency and security, Kubernetes performs pruning, or the automatic removal of unknown fields in objects sent to a Kubernetes API. An "unknown" field is one that is not specified in the OpenAPI validation schema. This behavior is already in place for native resources and ensures only data structures specified by the CRD developer are persisted to etcd. It will be available as a beta feature in Kubernetes 1.15.

Pruning is activated by setting `spec.preserveUnknownFields: false` in the Cu...

 - The `CSIMigrationVSphereComplete` feature flag is removed. `InTreePluginvSphereUnregister` will be the way moving...

    * [StorageOS](http://www.storageos.com) can be used as a storage provider for Kubernetes.  With StorageOS, capacity from local or attached storage is pooled across the cluster, providing converged infrastructure for cloud-native applications.
* CRI has been moved to package `pkg/kubelet/apis/cri/v1alpha1/runtime`. ([#47113](https://github.com/kubernetes/kubernetes/pull/47113), [@feiskyer](https://github.com/feiskyer))

    * [StorageOS](http://www.storageos.com) can be used as a storage provider for Kubernetes.  With StorageOS, capacity from local or attached storage is pooled across the cluster, providing converged infrastructure for cloud-native applications.
* CRI has been moved to package `pkg/kubelet/apis/cri/v1alpha1/runtime`. ([#47113](https://github.com/kubernetes/kubernetes/pull/47113), [@feiskyer](https://github.com/feiskyer))

* Cluster Autoscaler 1.0.0 ([#53005](https://github.com/kubernetes/kubernetes/pull/53005), [@mwielgus](https://github.com/mwielgus))
* Remove the --docker-exec-handler flag. Only native exec handler is supported. ([#52287](https://github.com/kubernetes/kubernetes/pull/52287), [@yujuhong](https://github.com/yujuhong))

Two alpha features were also added in this release.

The RuntimeClass alpha feature enables a node to surface multiple runtime options to support a variety of workload types.  Examples include native linux containers, and “sandboxed” containers that isolate the container from the host kernel.

natively within Kubernetes, without exposing an HTTP endpoint or
using an extra executable.

### Kubelet Credential Provider Graduates to Beta

Originally released as Alpha in Kubernetes 1.20, the kubelet's support for