- ip-mask-agent addon starts to use the label `node.kubernetes.io/masq-agent-ds-ready` instead of `beta.kubernetes.io/masq-agent-ds-ready` as its node selector.
  - kube-proxy addon starts to use the label `node.kubernetes.io/kube-proxy-ds-ready` instead of `beta.kubernetes.io/kube-proxy-ds-ready` as its node selector.

- Fix: Bug in `kube-proxy` latency metrics to calculate only the latency value for the `Endpoints` that are created after it starts running. This is needed because all the `Endpoints` objects are processed on restarts, independently when they were. ([#100861](https://github.com/kubernetes/kubernetes/pull/100861), [@aojea](https://github.com/aojea))

- Pod will not start when Init container was OOM killed. (#104650, @yxxhero) [SIG Node]
- Reduce the number of calls to docker for stats via dockershim. For Windows this reduces the latency when calling docker, for Linux this saves cpu cycles. (#104287, @jsturtevant) [SIG Node and Windows]

- Optimized calculating stats when only CPU and Memory stats are returned from Kubelet stats/summary http endpoint.  ([#68841](https://github.com/kubernetes/kubernetes/pull/68841), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))

* Fix kube-apiserver not to create default/kubernetes service endpoints before it reports readiness via the /healthz and therefore is ready to serve requests. Also early during startup old endpoints are remove which might be left over from a previously crashed kube-apiserver. ([#74668](https://github.com/kubernetes/kubernetes/pull/74668), [@sttts](https://github.com/sttts))

- If a pod has a running instance, the stats of its previously terminated instances will not show up in the kubelet summary stats any more for CRI runtimes such as containerd and cri-o. This keeps the behavior consistent with Docker integration, and fixes an issue that some container Prometheus metrics don't work when there are summary stats for multiple instances of the same pod. ([#77426](https://github.com/kubernetes/kubernetes/pull/77426),...

* Don't remove extended resource capacities that are not registered with kubelet from node status. ([#53353](https://github.com/kubernetes/kubernetes/pull/53353), [@jiayingz](https://github.com/jiayingz))

  - Added `allocatedResources` field to container status in pod status that describes the node resources allocated to a pod.
  - Added `resources` field to container status that reports actual resources applied to running containers.
  - Added `resize` field to pod status that describes the state of a requested pod resize.

- Sped up kubelet start time by executing an immediate runtime and node status update when the Kubelet sees that it has a CIDR. ([#67031](https://github.com/kubernetes/kubernetes/pull/67031), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))

- Fix endpoints status out-of-sync when the pod state changes rapidly ([#125675](https://github.com/kubernetes/kubernetes/pull/125675), [@tnqn](https://github.com/tnqn)) [SIG Apps, Network and Testing]
- For statically provisioned PVs, if its volume source is CSI type or it has migrated annotation, when it's deleted, the PersisentVolume controller won't changes its phase to the Failed state.