* kubeadm: print required flags when running kubeadm upgrade plan ([#65802](https://github.com/kubernetes/kubernetes/pull/65802), [@xlgao-zju](https://github.com/xlgao-zju))
* Fix `RunAsGroup` which doesn't work since 1.10. ([#65926](https://github.com/kubernetes/kubernetes/pull/65926), [@Random-Liu](https://github.com/Random-Liu))

- Kubelet metrics gathered through metrics-server or prometheus should no longer timeout for Windows nodes running more than 3 pods. ([#87730](https://github.com/kubernetes/kubernetes/pull/87730), [@marosset](https://github.com/marosset)) [SIG Node, Testing and Windows]

- Fixed port-forward memory leak for long-running and heavily used connections. ([#99839](https://github.com/kubernetes/kubernetes/pull/99839), [@saschagrunert](https://github.com/saschagrunert)) [SIG API Machinery and Node]

* BugFix: Exited containers are not Garbage Collected by the kubelet while the pod is running ([#53167](https://github.com/kubernetes/kubernetes/pull/53167), [@dashpole](https://github.com/dashpole))

- Fixed a regression since 1.27.0 in scheduler framework when running score plugins. 
  The `skippedScorePlugins` number might be greater than `enabledScorePlugins`, 
  so when initializing a slice the cap(len(skippedScorePlugins) - len(enabledScorePlugins)) is negative, 

* kubectl port-forward now allows using resource name (e.g., deployment/www) to select a matching pod, as well as the use of --pod-running-timeout to wait until at least one pod is running. ([#59705](https://github.com/kubernetes/kubernetes/pull/59705), [@phsiao](https://github.com/phsiao))

* Validate positive capacity for PVs and PVCs. ([#55532](https://github.com/kubernetes/kubernetes/pull/55532), [@ianchakeres](https://github.com/ianchakeres))
* Kubelet supports running mount utilities and final mount in a container instead running them on the host. ([#53440](https://github.com/kubernetes/kubernetes/pull/53440), [@jsafrane](https://github.com/jsafrane))

### Bug or Regression

- Fixed a regression since 1.27.0 in scheduler framework when running score plugins. 
  The `skippedScorePlugins` number might be greater than `enabledScorePlugins`, 
  so when initializing a slice the cap(len(skippedScorePlugins) - len(enabledScorePlugins)) is negative, 

- Kubelet.exe on Windows now checks that the process running as administrator and the executing user account is listed in the built-in administrators group.  This is the equivalent to checking the process is running as uid 0. ([#96616](https://github.com/kubernetes/kubernetes/pull/96616), [@perithompson](https://github.com/perithompson)) [SIG Node and Windows]

* Set pod status to "Running" if there is at least one container still reporting as "Running" status and others are "Completed". ([#62642](https://github.com/kubernetes/kubernetes/pull/62642), [@ceshihao](https://github.com/ceshihao))