### Node Components
* **[stable]** Init containers have graduated to GA and now appear as a field.
  The beta annotation value will still be respected and overrides the field
  value.
* Kubelet Container Runtime Interface (CRI) support
  - **[beta]** The Docker-CRI implementation is enabled by default in kubelet.
    You can disable it by --enable-cri=false. See

- Timeouts set in ListOptions for clients are also be respected locally ([#70998](https://github.com/kubernetes/kubernetes/pull/70998), [@deads2k](https://github.com/deads2k))

- Kubeadm: fixed the bug where the v1beta4 Timeouts.EtcdAPICall field was not respected in etcd client operations, and the default timeout of 2 minutes was always used. ([#129862](https://github.com/kubernetes/kubernetes/pull/129862), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

      rolling forward.
      The status has moved from annotation key
      `pods.beta.kubernetes.io/init-container-statuses` to
      `pods.beta.kubernetes.io/init-container-statuses`.
    * Any code that inspects this annotation should be changed to use the new key.
      State of Initialization will continue to be reported in both pods.alpha.kubernetes.io/initialized
      and in `podStatus.conditions.{status: "True", type: Initialized}`

- Kubeadm: fix the bug that configurable KubernetesVersion not respected during kubeadm join ([#111022](https://github.com/kubernetes/kubernetes/pull/111022), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

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*   Custom mountOptions for the azurefile StorageClass object are now respected. Specifically, `dir_mode` and `file_mode` can now be customized. ([#54674](https://github.com/kubernetes/kubernetes/pull/54674),[ @andyzhangx](https://github.com/andyzhangx))

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- The PodTopologySpread is respected after rolling upgrades. ([#111441](https://github.com/kubernetes/kubernetes/pull/111441), [@denkensk](https://github.com/denkensk))

## Changelog since v1.16.0

### Other notable changes

* Limit the body length of exec readiness/liveness probes. remote CRIs and Docker shim read a max of 16MB output of which the exec probe itself inspects 10kb. ([#82514](https://github.com/kubernetes/kubernetes/pull/82514), [@dims](https://github.com/dims))