- Made `apiextensions-apiserver` binary linking static (also affects the deb and rpm packages). ([#114226](https://github.com/kubernetes/kubernetes/pull/114226), [@saschagrunert](https://github.com/saschagrunert))

KEPs or supporting documentation, please reference a specific commit and avoid
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specific point in time, rather than a document that may change over time.

See here for guidance on getting permanent links to files: https://help.github.com/en/articles/getting-permanent-links-to-files

Please use the following format for linking documentation:
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* Compare correct file names for volume detach operation ([#57053](https://github.com/kubernetes/kubernetes/pull/57053), [@prashima](https://github.com/prashima))
* Fixed a garbage collection race condition where objects with ownerRefs pointing to cluster-scoped objects could be deleted incorrectly. ([#57211](https://github.com/kubernetes/kubernetes/pull/57211), [@liggitt](https://github.com/liggitt))

- Remove the deprecated metrics "scheduling_algorithm_preemption_evaluation_seconds" and "binding_duration_seconds", suggest to use "scheduler_framework_extension_point_duration_seconds" instead. ([#96447](https://github.com/kubernetes/kubernetes/pull/96447), [@chendave](https://github.com/chendave)) [SIG Cluster Lifecycle, Instrumentation, Scheduling...

* Fixes issue where an apiserver on 1.9 and controller-manager on 1.10 can cause volume provisioning and binding to fail. ([#71286](https://github.com/kubernetes/kubernetes/pull/71286), [@msau42](https://github.com/msau42))

  The new feature gate activates a framework for fine-grained filtering of events related to scheduler plugins.
  In this release, no default scheduling plugins make use of the hinting framework, so you should not expect any behavior changes. ([#119328](https://github.com/kubernetes/kubernetes/pull/119328), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling]

      - `scheduler_scheduling_algorithm_preemption_evaluation` -> `scheduler_scheduling_algorithm_preemption_evaluation_seconds`
      - `scheduler_binding_latency_microseconds` -> `scheduler_binding_duration_seconds`
      - `kubeproxy_sync_proxy_rules_latency_microseconds` -> `kubeproxy_sync_proxy_rules_duration_seconds`
      - `apiserver_request_latencies` -> `apiserver_request_duration_seconds`

* Change `kubeadm create token` to default to the group that almost everyone will want to use.  The group is system:bootstrappers:kubeadm:default-node-token and is the group that kubeadm sets up, via an RBAC binding, for auto-approval (system:certificates.k8s.io:certificatesigningrequests:nodeclient). ([#53512](https://github.com/kubernetes/kubernetes/pull/53512), [@jbeda](https://github.com/jbeda))

- Clear pod binding cache on bind error to make sure stale pod binding cache will not be used. ([#71212](https://github.com/kubernetes/kubernetes/pull/71212), [@cofyc](https://github.com/cofyc))

  - Clone `kubernetes/kubernetes` in `update-vendor.sh` shallowly, instead of fetching all revisions
  - Speed up binpacking by reducing the number of PreFilter calls (call once per pod instead of #pods*#nodes times)
  - Speed up finding unneeded nodes by 5x+ in very large clusters by reducing the number of PreFilter calls
  - Expose `--max-nodes-total` as a metric
  - Errors in `IncreaseSize` changed from type `apiError` to `cloudProviderError`