- Removes cAdvisor JSON metrics (/stats/container, /stats/<podname>/<containername>, /stats/<namespace>/<podname>/<poduid>/<containername>) from the kubelet. ([#99236](https://github.com/kubernetes/kubernetes/pull/99236), [@pacoxu](https://github.com/pacoxu))

- Added a new feature gate `CheckpointRestore` to enable support to checkpoint containers. If enabled it is possible to checkpoint a container using the newly kubelet API (/checkpoint/{podNamespace}/{podName}/{containerName}). ([#104907](https://github.com/kubernetes/kubernetes/pull/104907), [@adrianreber](https://github.com/adrianreber)) [SIG Node and Testing]

    * Action required: any Prometheus queries that match `pod_name` and `container_name` labels (e.g. cadvisor or kubelet probe metrics) should be updated to use `pod` and `container` instead. `pod_name` and `container_name` labels will be present alongside...

* Update defaultbackend to 1.5: move /metrics to a private endpoint (:10254). ([#69383](https://github.com/kubernetes/kubernetes/pull/69383), [@bowei](https://github.com/bowei))
* Allows changing nodeName in endpoint update. ([#68575](https://github.com/kubernetes/kubernetes/pull/68575), [@prameshj](https://github.com/prameshj))

- kubeadm init correctly uses `--node-name` and `--cri-socket` when `--config` option is also used ([#71323](https://github.com/kubernetes/kubernetes/pull/71323), [@bart0sh](https://github.com/bart0sh))
- kubeadm: Always pass spec.nodeName as `--hostname-override` for kube-proxy ([#71283](https://github.com/kubernetes/kubernetes/pull/71283), [@Klaven](https://github.com/Klaven))

### Removed metrics

        * Nodes must use client credentials that place them in the `system:nodes` group with a username of `system:node:<nodeName>` in order to be authorized by the node authorizer (the credentials obtained by the kubelet via TLS bootstrapping satisfy these requirements)

- Scheduler's assumed pods have 2min instead of 30s to receive nodeName pod updates ([#106686](https://github.com/kubernetes/kubernetes/pull/106686), [@ahg-g](https://github.com/ahg-g)) [SIG Scheduling]

## Dependencies

### Added
_Nothing has changed._

### Changed

- Fixed the bug where kubelet couldn't output logs after log file rotated when `kubectl logs POD_NAME -f` is running. ([#115702](https://github.com/kubernetes/kubernetes/pull/115702), [@xyz-li](https://github.com/xyz-li))

- `kubectl port-forward` now exits with exit code 1 when remote connection is
  lost ([#114460](https://github.com/kubernetes/kubernetes/pull/114460), [@brianpursley](https://github.com/brianpursley))
- `nodeName` being set along with non-empty `schedulingGates` is now enforced. ([#115569](https://github.com/kubernetes/kubernetes/pull/115569), [@Huang-Wei](https://github.com/Huang-Wei))