does not guarantee they will be satisfied. Both the “hard” and “soft” variants
of node affinity use the new syntax. Documentation is [here](http://kubernetes.io/docs/user-guide/node-selection/) (see section “Alpha feature in Kubernetes v1.2: Node Affinity“). Design doc is [here](https://github.com/kubernetes/kubernetes/blob/release-1.2/docs/design/nodeaffinity.md).

dual-stack enabled, you can create Services which can use IPv4, IPv6, or both, and you can change this setting for existing Services. Details are available in updated [IPv4/IPv6 dual-stack docs](https://docs.k8s.io/concepts/services-networking/dual-stack/), which cover the nuanced array of options.

We expect this implementation to progress from alpha to beta and GA in coming releases, so we’re eager to have you comment about your dual-stack experiences in [#k8s-dual-stack](https://kubern...

### Ephemeral Containers Graduate to Stable

You can find more information about how to restrict container system calls with seccomp in the new [documentation page on Kubernetes.io][seccomp-docs]

[seccomp-docs]: https://kubernetes.io/docs/tutorials/clusters/seccomp/


### Production images moved to community control

As of Kuberenetes v1.19, Kubernetes container images are stored on a community-controlled storage bucket, 

- Changed kubectl describe to compute age of an event using the `EventSeries.count` and `EventSeries.lastObservedTime`. ([#104482](https://github.com/kubernetes/kubernetes/pull/104482), [@harjas27](https://github.com/harjas27))

tokens are no longer auto-generated for every ServiceAccount. Use the [TokenRequest](https://kubernetes.io/docs/reference/kubernetes-api/authentication-resources/token-request-v1/) API to acquire service account tokens, or if a non-expiring token is required, create a Secret API object for the token controller to populate with a service account token by following this [guide](https://kubernetes.io/docs/concepts/configuration/secret/#service-account-token-secrets). ([#108309](https://github.com/kuberne...

[Extending the Kubernetes API with the aggregation layer](https://kubernetes.io/docs/concepts/api-extension/apiserver-aggregation/), [Configure the aggregation layer](https://kubernetes.io/docs/tasks/access-kubernetes-api/configure-aggregation-layer/), and [Setup an extension API server](https://kubernetes.io/docs/tasks/access-kubernetes-api/setup-extension-api-server/).

* [alpha] Adding admissionregistration API group which enables dynamic registration of initializers and external admission...

### API changes and improvements for ephemeral containers

The API used to create [Ephemeral Containers](https://kubernetes.io/docs/concepts/workloads/pods/ephemeral-containers/) changed in 1.22. The Ephemeral Containers feature is alpha and disabled by default, and the new API does not work with clients that attempt to use the old API.

* fix: detach azure disk issue using dangling error ([#81266](https://github.com/kubernetes/kubernetes/pull/81266), [@andyzhangx](https://github.com/andyzhangx))
* Fixed a bug in the CSI metrics that does not return not supported error when a CSI driver does not support metrics. ([#79851](https://github.com/kubernetes/kubernetes/pull/79851), [@jparklab](https://github.com/jparklab))

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