- Fix incorrectly report scope for request_duration_seconds and request_slo_duration_seconds metrics for POST custom resources API calls. ([#110009](https://github.com/kubernetes/kubernetes/pull/110009), [@azylinski](https://github.com/azylinski)) [SIG Instrumentation]

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- OpenAPI spec and API reference now reflect dryRun query parameter for POST/PUT/PATCH operations ([#69359](https://github.com/kubernetes/kubernetes/pull/69359), [@roycaihw](https://github.com/roycaihw))

kubelet performing the TLS Bootstrap properly. Earlier, `kubeadm join` only did the discovery part and exited successfully without checking that the kubelet actually started properly and performed the TLS bootstrap correctly. Now, as kubeadm runs some post-join steps (for example, annotating the Node API object with the CRISocket), `kubeadm join` is now waiting for the kubelet to perform the TLS Bootstrap, and then uses that credential to perform further actions. This also improves the UX, as `kubeadm`...

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### Dockershim deprecation

Docker as an underlying runtime is being deprecated. Docker-produced images will continue to work in your cluster with all runtimes, as they always have.
The Kubernetes community [has written a blog post about this in detail](https://blog.k8s.io/2020/12/02/dont-panic-kubernetes-and-docker/) with [a dedicated FAQ page for it](https://blog.k8s.io/2020/12/02/dockershim-faq/).

### External credential provider for client-go

- Implement the scheduling framework with `Reserve`, `Prebind`, `Permit`, `Post-bind`, `Queue sort` and `Unreserve` extension points.
([#77567](https://github.com/kubernetes/kubernetes/pull/77567), [@wgliang](https://github.com/wgliang))

*   The canonical pronunciation of kubectl is "cube control".
*   Added --raw to kubectl create to POST using the normal transport. ([#54245](https://github.com/kubernetes/kubernetes/pull/54245),[ @deads2k](https://github.com/deads2k))

- Take the context as the first argument of Schedule. ([#82119](https://github.com/kubernetes/kubernetes/pull/82119), [@wgliang](https://github.com/wgliang))
- Implement `post-filter` extension point for scheduling framework ([#78097](https://github.com/kubernetes/kubernetes/pull/78097), [@draveness](https://github.com/draveness))

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