- Removed support for the `v1alpha1` kubeletplugin API of `DynamicResourceManagement`. All plugins must be updated to `v1alpha2` in order to function properly. ([#116558](https://github.com/kubernetes/kubernetes/pull/116558), [@klueska](https://github.com/klueska))

* 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 1.28 regression around restarting init containers in the right order relative to normal containers ([#120440](https://github.com/kubernetes/kubernetes/pull/120440), [@gjkim42](https://github.com/gjkim42)) [SIG Node and Testing]

- The AnyVolumeDataSource feature is now beta, and the feature gate is enabled by default. In order to provide user feedback on PVCs with data sources, deployers must install the VolumePopulators CRD and the data-source-validator controller. ([#108736](https://github.com/kubernetes/kubernetes/pull/108736), [@bswartz](https://github.com/bswartz))...

- `kubeadm`: will now allow deploying a kubelet that is 3 versions older than the version of `kubeadm` (N-3). This aligns with the recent change made by SIG Architecture that extends the support skew between the control plane and kubelets. Tolerate this new kubelet skew for the commands `init`, `join` and `upgrade`. Note that if the `kubeadm` user applies a control plane version that is older than the `kubeadm` version (N-1 maximum) then the skew between the kubelet and control...