- Fixed a bug that `kubectl create configmap` always returns zero exit code when failed. ([#101780](https://github.com/kubernetes/kubernetes/pull/101780), [@nak3](https://github.com/nak3)) [SIG CLI]

- Kubectl port-forward service will now properly exit when the attached pod dies (#103526, @brianpursley) [SIG API Machinery]
- Kubelet: fixes a file descriptor leak in log rotation (#106382, @rphillips) [SIG Node]

* fix kubectl taint e2e flake: add retries for removing taint ([#33872](https://github.com/kubernetes/kubernetes/pull/33872), [@kevin-wangzefeng](https://github.com/kevin-wangzefeng))
* portfordwardtester: avoid data loss during send+close+exit ([#37103](https://github.com/kubernetes/kubernetes/pull/37103), [@sttts](https://github.com/sttts))

* Fix GCI mounter issue ([#38124](https://github.com/kubernetes/kubernetes/pull/38124), [@jingxu97](https://github.com/jingxu97))
* Exit with error if <version number or publication> is not the final parameter. ([#37723](https://github.com/kubernetes/kubernetes/pull/37723), [@mtaufen](https://github.com/mtaufen))

- Increased log level to 2 for IPVS graceful termination ([#78395](https://github.com/kubernetes/kubernetes/pull/78395), [@andrewsykim](https://github.com/andrewsykim))
- kube-proxy: os exit when CleanupAndExit is set to true ([#76732](https://github.com/kubernetes/kubernetes/pull/76732), [@JieJhih](https://github.com/JieJhih))

* Make addon-manager cross-platform and use it with hyperkube ([#25631](https://github.com/kubernetes/kubernetes/pull/25631), [@luxas](https://github.com/luxas))
* kubelet: Optionally, have kubelet exit if lock file contention is observed, using --exit-on-lock-contention flag ([#25596](https://github.com/kubernetes/kubernetes/pull/25596), [@derekparker](https://github.com/derekparker))

- Added a new `--init-only` command line flag to `kube-proxy`. Setting the flag makes `kube-proxy` perform its initial configuration that requires privileged mode, and then exit. The `--init-only` mode is intended to be executed in a privileged init container, so that the main container may run with a stricter `securityContext`. ([#120864](https://github.com/kubernetes/kubernetes/pull/120864), [@uablrek](https://github.com/uablrek))...

- Kube-proxy no longer falls back from ipvs mode to iptables mode if you ask it to do ipvs but the system is not correctly configured. Instead, it will just exit with an error. ([#111806](https://github.com/kubernetes/kubernetes/pull/111806), [@danwinship](https://github.com/danwinship)) [SIG Network]

* Windows nodes on GCE use a known-working 1809 image rather than the latest 1809 image. ([#76722](https://github.com/kubernetes/kubernetes/pull/76722), [@pjh](https://github.com/pjh))
* kube-proxy: os exit when CleanupAndExit is set to true ([#76732](https://github.com/kubernetes/kubernetes/pull/76732), [@JieJhih](https://github.com/JieJhih))