- `kubelet` now exposes latency metrics of different stages of the node startup. ([#118568](https://github.com/kubernetes/kubernetes/pull/118568), [@qiutongs](https://github.com/qiutongs))

### Documentation

- Added descriptions and examples for the situation of using `kubectl rollout restart` without specifying a particular deployment. ([#120118](https://github.com/kubernetes/kubernetes/pull/120118), [@Ithrael](https://github.com/Ithrael))

- Realigned line breaks from `kubectl explain` descriptions. ([#126533](https://github.com/kubernetes/kubernetes/pull/126533), [@ah8ad3](https://github.com/ah8ad3))
- Removed attachable volume limits from the capacity of the node for the following

- Fixed some missing white spaces in the flag descriptions and logs. ([#131562](https://github.com/kubernetes/kubernetes/pull/131562), [@logica0419](https://github.com/logica0419)) [SIG Network]

          ([#27885](https://github.com/kubernetes/kubernetes/issues/27885)).
          The issue can be identified by using the node problem detector.

        - File descriptor leak on init/control.
          ([#275](https://github.com/containerd/containerd/issues/275))

        - Additional memory overhead per container.

- Kubelet's Node Grace Shutdown will terminate probes when shutting down ([#105215](https://github.com/kubernetes/kubernetes/pull/105215), [@rphillips](https://github.com/rphillips))
- Kubelet: fixes a file descriptor leak in log rotation ([#106382](https://github.com/kubernetes/kubernetes/pull/106382), [@rphillips](https://github.com/rphillips)) [SIG Node]

- Updated command descriptions and examples for grammar and punctuation consistency. ([#103524](https://github.com/kubernetes/kubernetes/pull/103524), [@bergerhoffer](https://github.com/bergerhoffer)) [SIG Auth and CLI]

- Applies translations on all command descriptions ([#95439](https://github.com/kubernetes/kubernetes/pull/95439), [@HerrNaN](https://github.com/HerrNaN)) [SIG CLI]
- Base-images: Update to debian-iptables:buster-v1.3.0
  - Uses iptables 1.8.5

- Kubectl shell completions for the bash shell now include descriptions. ([#113636](https://github.com/kubernetes/kubernetes/pull/113636), [@marckhouzam](https://github.com/marckhouzam))

* Move config local to controllers in kube-controller-manager ([#72800](https://github.com/kubernetes/kubernetes/pull/72800), [@stewart-yu](https://github.com/stewart-yu))
* Fix some potential deadlocks and file descriptor leaking for inotify watches. ([#75376](https://github.com/kubernetes/kubernetes/pull/75376), [@cpuguy83](https://github.com/cpuguy83))

* Remove/clean unused RegEx code in routing. PR [#314](https://github.com/tiangolo/fastapi/pull/314) by [@dmontagu](https://github.com/dmontagu).

* Use default response status code descriptions for additional responses. PR [#313](https://github.com/tiangolo/fastapi/pull/313) by [@duxiaoyao](https://github.com/duxiaoyao).