- Fixed a 1.18 regression in wait.Forever that skips the backoff period on the first repeat ([#90476](https://github.com/kubernetes/kubernetes/pull/90476), [@zhan849](https://github.com/zhan849)) [SIG API Machinery]

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* Fixes issue where masquerade rules are flushed in GCE k8s clusters. ([#56728](https://github.com/kubernetes/kubernetes/pull/56728), [@dnardo](https://github.com/dnardo))
* kubelet: fix bug where `runAsUser: MustRunAsNonRoot` strategy didn't reject a pod with a non-numeric `USER`. ([#56711](https://github.com/kubernetes/kubernetes/pull/56711), [@php-coder](https://github.com/php-coder))

### Other notable changes

* Connections from Pods to Services with 0 endpoints will now ICMP reject immediately, rather than blackhole and timeout. ([#72534](https://github.com/kubernetes/kubernetes/pull/72534), [@thockin](https://github.com/thockin))

- E2e framework: added `--report-complete-ginkgo` and `--report-complete-junit` parameters. They work like `ginkgo --json-report <report dir>/ginkgo/report.json --junit-report <report dir>/ginkgo/report.xml`. ([#115678](https://github.com/kubernetes/kubernetes/pull/115678), [@pohly](https://github.com/pohly)) [SIG Testing]

- Terminating a restartPolicy=Never pod no longer has a chance to report the pod succeeded when it actually failed. ([#88440](https://github.com/kubernetes/kubernetes/pull/88440), [@smarterclayton](https://github.com/smarterclayton)) [SIG Node and Testing]

### Other (Cleanup or Flake)

* kubelet: Fix bug where `runAsUser: MustRunAsNonRoot` strategy didn't reject a pod with a non-numeric `USER`. ([#56708](https://github.com/kubernetes/kubernetes/pull/56708), [@php-coder](https://github.com/php-coder))
* Add iptables rules to allow Pod traffic even when default iptables policy is to reject. ([#52569](https://github.com/kubernetes/kubernetes/pull/52569), [@tmjd](https://github.com/tmjd))

- Fixed a regression that could incorrectly reject pods with OutOfCpu errors if they were rapidly scheduled after other pods were reported as complete in the API. The Kubelet now waits to report the phase of a pod as terminal in the API until all running containers are guaranteed to have stopped and no new containers can be started.  Short-lived pods may take slightly longer (~1s) to report Succeeded or Failed after this change. ([#108723](https://github.com/kubern...

- Fixed kubelet logging to properly respect verbosity levels. Previously, some debug/info messages using V().Error() would always be printed regardless of the configured log verbosity. ([#136433](https://github.com/kubernetes/kubernetes/pull/136433), [@thc1006](https://github.com/thc1006)) [SIG Node]

- Added a kubelet metric `container_aligned_compute_resources_count`  to report the count of containers getting aligned compute resources. ([#127155](https://github.com/kubernetes/kubernetes/pull/127155), [@ffromani](https://github.com/ffromani)) [SIG Node and Testing]