- [Container Runtime Interface (CRI) v1 is default](#container-runtime-interface-cri-v1-is-default)
    - [Structured logging graduate to Beta](#structured-logging-graduate-to-beta)
    - [Simplified Multi-point plugin configuration for scheduler](#simplified-multi-point-plugin-configuration-for-scheduler)
    - [CSI Migration updates](#csi-migration-updates)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)

* [alpha] Improve Flex volume deployment

  * Flex volume driver deployment is simplified in the following ways:

    * New driver files can now be automatically discovered and initialized without requiring a kubelet or controller-manager restart.

Kubeadm: Automate certificate copy between control planes in HA setups

- Joining control plane nodes to a HA cluster can now be simplified by enabling the optional automatic copy of certificates from an existing control plane node.
- You can now use `kubeadm init --experimental-upload-certs` and `kubeadm join --experimental-control-plane --certificate-key`.

* Add Japanese translation for kubectl ([#46756](https://github.com/kubernetes/kubernetes/pull/46756), [@girikuncoro](https://github.com/girikuncoro))

* Add Simplified Chinese translation for kubectl ([#45573](https://github.com/kubernetes/kubernetes/pull/45573), [@shiywang](https://github.com/shiywang))

### **kubectl (CLI)**
* Features

<code>T</code> is a <a href="#Numeric_types">floating-point type</a> and <code>x</code> can be rounded to <code>T</code>'s
precision without overflow. Rounding uses IEEE 754 round-to-even rules but with an IEEE
negative zero further simplified to an unsigned zero. Note that constant values never result
in an IEEE negative zero, NaN, or infinity.
</li>

<li>
<code>T</code> is a complex type, and <code>x</code>'s

- Kubeadm: graduated the kubeadm specific feature gate `UnversionedKubeletConfigMap` to GA and locked it to `true` by default. The kubelet related ConfigMap and RBAC rules are now locked to have a simplified naming `*kubelet-config` instead of the legacy naming `*kubelet-config-x.yy`, where `x.yy` was the version of the control plane. If you have previously used the old naming format with `UnversionedKubeletConfigMap=false`, you must manually copy the...

             mask="0xFFFFF0F0F0F0"/>
    </magic>
  </mime-type>

  <mime-type type="image/vnd.dxb">
    <acronym>DXB</acronym>
    <_comment>AutoCAD DXF simplified Binary</_comment>
    <tika:link>http://en.wikipedia.org/wiki/AutoCAD_DXF</tika:link>
    <magic priority="50">
      <match value="AutoCAD DXB 1.0\r\n0x1A00" type="string" offset="0"/>
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* New Pydantic models use an improved and simplified attribute `model_config` that takes a simple dict instead of an internal class `Config` for their configuration.

* InfluxDB cluster monitoring has been deprecated as part of the deprecation of Heapster. Instead, you may use the [metrics server](https://github.com/kubernetes-incubator/metrics-server). It's a simplified heapster that is able to gather and serve current metrics values. It provides the Metrics API that is used by `kubectl top`, and horizontal pod autoscaler. Note that it doesn't include some features of Heapster, such as short term metrics for graphs...

* controllers backoff better in face of quota denial ([#49142](https://github.com/kubernetes/kubernetes/pull/49142), [@joelsmith](https://github.com/joelsmith))
* The event table output under `kubectl describe` has been simplified to show only the most essential info. ([#51748](https://github.com/kubernetes/kubernetes/pull/51748), [@smarterclayton](https://github.com/smarterclayton))