- Cloud-controller-manager: routes controller should not depend on --allocate-node-cidrs ([#97029](https://github.com/kubernetes/kubernetes/pull/97029), [@andrewsykim](https://github.com/andrewsykim)) [SIG Cloud Provider and Testing]

- E2e.test and e2e_node.test: tests which depend on alpha or beta feature gates now have `Feature:Alpha` or `Feature:Beta` as Ginkgo labels. The inline text is `[Alpha]` or `[Beta]`, as before. ([#124350](https://github.com/kubernetes/kubernetes/pull/124350), [@pohly](https://github.com/pohly))...

- Both apiserver_request_duration_seconds metrics and RequestReceivedTimestamp fields of an audit event now take into account the time a request spends in the apiserver request filters. ([#94903](https://github.com/kubernetes/kubernetes/pull/94903), [@tkashem](https://github.com/tkashem))
- Build/lib/release: Explicitly use '--platform' in building server images
  

- A new `--prefix` flag added into kubectl logs which prepends each log line with information about it's source (pod name and container name) ([#76471](https://github.com/kubernetes/kubernetes/pull/76471), [@m1kola](https://github.com/m1kola))

## API Changes

- The OpenAPI spec and documentation now reflect the 202 Accepted response path for delete requests. Note that this change in the openapi spec may affect some clients that depend on the error paths.  ([#63418](https://github.com/kubernetes/kubernetes/pull/63418), [@roycaihw](https://github.com/roycaihw))

  * Marking a StorageClass as default makes it so that even a PersistentVolumeClaim without a StorageClass specified will trigger dynamic provisioning (instead of binding to an existing pool of PVs).
  * If you depend on the old behavior of volumes binding to existing pool of PersistentVolume objects then modify the StorageClass object and set `storageclass.beta.kubernetes.io/is-default-class` to `false`.

* Deprecate auto detecting cloud providers in kubelet. Auto detecting cloud providers go against the initiative for out-of-tree cloud providers as we'll now depend on cAdvisor integrations with cloud providers instead of the core repo. In the near future, `--cloud-provider` for kubelet will either be an empty string or `external`.  ([#51312](https://github.com/kubernetes/kubernetes/pull/51312), [@andrewsyki...

The merged fix enforces validation against the proxying address for a Node. In some cases, the fix can break clients that depend on the `nodes/proxy` subresource, specifically if a kubelet advertises a localhost or link-local address to the Kubernetes control plane. Configuring an egress proxy for egress to the cluster network can also mitigate this vulnerability.