- apiserver_flowcontrol_current_r: R(the time of the last change in state of the queues)
  - apiserver_flowcontrol_dispatch_r: R(the time of the latest request dispatch)
  - apiserver_flowcontrol_latest_s: S(the request last dispatched) = R(when that request starts executing in the virtual world)
  - apiserver_flowcontrol_next_s_bounds: min and max next S among non-empty queues

- Added a new Priority and Fairness metric `apiserver_flowcontrol_request_dispatch_no_accommodation_total` to track the number of times a request dispatch attempt results in a no-accommodation status due to lack of available seats. ([#106629](https://github.com/kubernetes/kubernetes/pull/106629), [@tkashem](https://github.com/tkashem))

        * [Using FastAPI with Django](https://www.stavros.io/posts/fastapi-with-django/)  by [Stavros Korokithakis](https://twitter.com/Stavros).
        * [Introducing Dispatch](https://netflixtechblog.com/introducing-dispatch-da4b8a2a8072) by [Netflix](https://netflixtechblog.com/).
    * **Podcasts**:

    <glob pattern="*-gz" />
  </mime-type>
  <mime-type type="application/zstd">
    <_comment>https://en.wikipedia.org/wiki/Zstandard</_comment>
    <_comment>https://tools.ietf.org/id/draft-kucherawy-dispatch-zstd-01.html</_comment>
    <magic priority="50">
      <match value="0xFD2FB528" type="little32" offset="0"/>
    </magic>
    <glob pattern="*.zst"/>
  </mime-type>

  // If specified, the pod's scheduling constraints
  // +optional
  optional Affinity affinity = 18;

  // If specified, the pod will be dispatched by specified scheduler.
  // If not specified, the pod will be dispatched by default scheduler.
  // +optional
  optional string schedulerName = 19;

  // If specified, the pod's tolerations.
  // +optional

- Two changes to the `/debug/api_priority_and_fairness/dump_priority_levels` endpoint of API Priority and Fairness: added total number of dispatched, timed-out, rejected and cancelled requests; output now sorted by `PriorityLevelName`. ([#112393](https://github.com/kubernetes/kubernetes/pull/112393), [@borgerli](https://github.com/borgerli))

- Watch requests that are delegated to aggregated API servers no longer reserve concurrency units (seats) in the API Priority and Fairness dispatcher for their entire duration. ([#105511](https://github.com/kubernetes/kubernetes/pull/105511), [@benluddy](https://github.com/benluddy))

* Upgrade to etcd client 3.3.17 to fix bug where etcd client does not parse IPv6 addresses correctly when members are joining, and to fix bug where failover on multi-member etcd cluster fails certificate check on DNS mismatch ([#83801](https://github.com/kubernetes/kubernetes/pull/83801), [@jpbetz](https://github.com/jpbetz))

* Upgrade to etcd client 3.3.17 to fix bug where etcd client does not parse IPv6 addresses correctly when members are joining, and to fix bug where failover on multi-member etcd cluster fails certificate check on DNS mismatch ([#83968](https://github.com/kubernetes/kubernetes/pull/83968), [@jpbetz](https://github.com/jpbetz))
* Update to use go1.12.12 ([#84064](https://github.com/kubernetes/kubernetes/pull/84064), [@cblecker](https://github.com/cblecker))