* `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

# Plugin repository URLs.
plugin.repositories=https://repo.maven.apache.org/maven2/org/codelibs/fess/,https://fess.codelibs.org/plugin/artifacts.yaml
# Version filter for plugins.
plugin.version.filter=


# ----------------------------------------------------------

*   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...

* 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: fix a regression where the KubeletConfiguration is not properly downloaded during "kubeadm upgrade" commands from the kube-system/kubelet-config ConfigMap, resulting in the local '/var/lib/kubelet/config.yaml' file being written as a defaulted config. ([#124497](https://github.com/kubernetes/kubernetes/pull/124497), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

## Dependencies

### Added

- 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))...

## Changelog since v1.12.0

### Other notable changes

* kubeadm now allows mixing of init/cluster and join configuration in a single YAML file (although a warning gets printed in this case).  ([#69426](https://github.com/kubernetes/kubernetes/pull/69426), [@rosti](https://github.com/rosti))

- Kubeadm: implemented structured output of 'kubeadm config images list' command in JSON, YAML, Go template and JsonPath formats ([#86810](https://github.com/kubernetes/kubernetes/pull/86810), [@bart0sh](https://github.com/bart0sh)) [SIG Cluster Lifecycle]

  in the `NetworkDeviceData` are now validated more strictly. ([#129219](https://github.com/kubernetes/kubernetes/pull/129219), [@danwinship](https://github.com/danwinship)) [SIG Network]
- YAML input that might previously have been misinterpreted as JSON is now correctly accepted. ([#130666](https://github.com/kubernetes/kubernetes/pull/130666), [@thockin](https://github.com/thockin))