- Added machine readable output options (JSON & YAML) to kubectl api-resources ([#132604](https://github.com/kubernetes/kubernetes/pull/132604), [@dharmit](https://github.com/dharmit)) [SIG Apps, CLI and Network]

* Check for known manifests during preflight instead of only checking for non-empty manifests directory. This makes the preflight checks less heavy-handed by specifically checking for well-known files (kube-apiserver.yaml, kube-controller-manager.yaml, kube-scheduler.yaml, etcd.yaml) in /etc/kubernetes/manifests instead of simply checking for a non-empty directory. ([#57287](https://github.com/kubernetes/kubernetes/pull/57287), [@mattkelly](https://github.com/mattkelly))

* Fix aggressive VM calls for Azure VMSS ([#83102](https://github.com/kubernetes/kubernetes/pull/83102), [@feiskyer](https://github.com/feiskyer))

    * Disable timestamp adjustment in logs to optimize performance.
    * Reduce logging agent buffer chunk limit to 512k to optimize performance.
* Fix a bug on GCE that /etc/crictl.yaml is not generated when crictl is preloaded. ([#66877](https://github.com/kubernetes/kubernetes/pull/66877), [@Random-Liu](https://github.com/Random-Liu))

- Kubeadm: Ensured that during "upgrade" , if the "etcd.yaml" static pod did not need upgrade, still consider rotating the etcd certificates and restarting the etcd static pod if the "kube-apiserver.yaml" manifest was to be upgraded and if certificate renewal was not disabled. ([#124688](https://github.com/kubernetes/kubernetes/pull/124688), [@neolit123](https://github.com/neolit123))...

  </mime-type>

  <mime-type type="text/x-yaml">
    <_comment>YAML source code</_comment>
    <alias type="application/x-yaml" />
    <alias type="application/x-yml" />
    <alias type="application/yaml" />
    <alias type="text/vnd.yaml" />
    <alias type="text/yaml" />
    <alias type="text/x-yml" />
    <glob pattern="*.yaml"/>
    <glob pattern="*.yml"/>
    <sub-class-of type="text/plain"/>

- Fix unsafe JSON construction in a number of locations in the codebase ([#81158](https://github.com/kubernetes/kubernetes/pull/81158), [@zouyee](https://github.com/zouyee))

### Other notable changes

* Fix aggressive VM calls for Azure VMSS ([#83102](https://github.com/kubernetes/kubernetes/pull/83102), [@feiskyer](https://github.com/feiskyer))

		* `kubectl version` has new flag --output (=json or yaml) allowing result of the command to be parsed in either json format or yaml. ([#39858](https://github.com/kubernetes/kubernetes/pull/39858), [@alejandroEsc](https://github.com/alejandroEsc))


  * Bug fixes

*   The Kubelet's feature gates are now specified as a map when provided via a JSON or YAML KubeletConfiguration, rather than as a string of key-value pairs, making them less awkward for users. ([#53025](https://github.com/kubernetes/k...