*   Fixed a bug where the `client-gen` tag for code-generator required a newline between a comment block and a statement.  tag shortcomings when newline is omitted ([#53893](https://github.com/kubernetes/kubernetes/pull/53893)) ([#55233](https://github.com/kubernetes/kubernetes/pull/55233),[ @sttts](https://github.com/sttts))

n     */\n    priority: ['left', 'right', 'top', 'bottom'],\n    /**\n     * @prop {number} padding=5\n     * Amount of pixel used to define a minimum distance between the boundaries\n     * and the popper. This makes sure the popper always has a little padding\n     * between the edges of its container\n     */\n    padding: 5,\n    /**\n     * @prop {String|HTMLElement} boundariesElement='scrollParent'\n     * Boundaries used by the modifier. Can be `scrollParent`, `window`,\n     * `viewport`...

## Action Required

- etcd2 as a backend is deprecated and support will be removed in Kubernetes 1.13.

- Reverted a kubectl azure auth module change where oidc claim spn: prefix was omitted resulting a breaking behavior with existing Azure AD OIDC enabled api-server ([#87507](https://github.com/kubernetes/kubernetes/pull/87507), [@weinong](https://github.com/weinong)) [SIG API Machinery, Auth and Cloud Provider]

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- Zero-value `metadata.creationTimestamp` values are now omitted and no longer serialize an explicit `null` in JSON, YAML, and CBOR output ([#130989](https://github.com/kubernetes/kubernetes/pull/130989), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Apps, Architecture, Auth, CLI, Cloud Provider,...

- kubeadm now attempts to detect an installed CRI by its usual domain socket, so that `--cri-socket` can be omitted from the command line if Docker is not used and there is a single CRI installed. ([#69366](https://github.com/kubernetes/kubernetes/pull/69366), [@rosti](https://github.com/rosti))

* The `emptyDir.sizeLimit` field is now correctly omitted from API requests and responses when unset. ([#50163](https://github.com/kubernetes/kubernetes/pull/50163), [@jingxu97](https://github.com/jingxu97))

* The `emptyDir.sizeLimit` field is now correctly omitted from API requests and responses when unset. ([#50163](https://github.com/kubernetes/kubernetes/pull/50163), [@jingxu97](https://github.com/jingxu97))