- Kubelet now exposes `/debug/flags/v` to allow dynamically setting glog logging level.  For example, to change glog level to 3, you only have to send a PUT request like `curl -X PUT http://127.0.0.1:8080/debug/flags/v -d "3"`. ([#64601](https://github.com/kubernetes/kubernetes/pull/64601), [@hzxuzhonghu](https://github.com/hzxuzhonghu))

### SIG OpenStack

- Kubeadm: make sure that `kubeadm init/join` always use a URL scheme (unix:// on Linux and npipe:// on Windows) when passing a value to the `--container-runtime-endpoint` kubelet flag. This flag's value is taken from the kubeadm configuration `criSocket` field or the `--cri-socket` CLI flag. Automatically add a missing URL scheme to the user configuration in memory, but warn them that they should also update their configuration on disk manually....

- github.com/aws/aws-sdk-go-v2/service/internal/presigned-url: [v1.11.15 → v1.12.15](https://github.com/aws/aws-sdk-go-v2/compare/service/internal/presigned-url/v1.11.15...service/internal/presigned-url/v1.12.15)
- github.com/aws/aws-sdk-go-v2/service/sso: [v1.22.1 → v1.25.3](https://github.com/aws/aws-sdk-go-v2/compare/service/sso/v1.22.1...service/sso/v1.25.3)

*   It is now possible to set multiple manifest URL headers with the kubelet's `--manifest-url-header` flag. Multiple headers for the same key will be added in the order provided. The ManifestURLHeader field in KubeletConfiguration object (kubeletconfig/v1alpha1) is now a map[string][]string, which facilitates writing JSON...

  * Implement `kubectl get controllerrevisions` ([#46655](https://github.com/kubernetes/kubernetes/pull/46655), [@janetkuo](https://github.com/janetkuo))

  * `kubectl create clusterrole` supports `--non-resource-url` ([#45809](https://github.com/kubernetes/kubernetes/pull/45809), [@CaoShuFeng](https://github.com/CaoShuFeng))

### Feature

- API request throttling (due to a high rate of requests) is now reported in client-go logs at log level 2.  The messages are of the form:`Throttling request took 1.50705208s, request: GET:<URL>` The presence of these messages may indicate to the administrator the need to tune the cluster accordingly. ([#87740](https://github.com/kubernetes/kubernetes/pull/87740), [@jennybuckley](https://github.com/jennybuckley)) [SIG API Machinery]

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- github.com/aws/aws-sdk-go-v2/service/internal/presigned-url: [v1.11.15](https://github.com/aws/aws-sdk-go-v2/tree/service/internal/presigned-url/v1.11.15)
- github.com/aws/aws-sdk-go-v2/service/sso: [v1.22.1](https://github.com/aws/aws-sdk-go-v2/tree/service/sso/v1.22.1)

  - https://github.com/kubernetes-sigs/kustomize/pull/4985: If you previously included .git in an AWS or Azure URL, we will no longer automatically remove that suffix. You may need to add an extra / to replace the .git for the URL to properly resolve.

- Kubeadm: when adding new control plane nodes with "kubeadm join", ensure that the etcd member addition is performed only if a given member URL does not already exist in the list of members. Similarly, on "kubeadm reset" only remove an etcd member if its ID exists. ([#127620](https://github.com/kubernetes/kubernetes/pull/127620), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]...