* Add redirect support to SpdyRoundTripper ([#44451](https://github.com/kubernetes/kubernetes/pull/44451), [@ncdc](https://github.com/ncdc))

	* Duplicate recurring Events now include the latest event's Message string ([#46034](https://github.com/kubernetes/kubernetes/pull/46034), [@kensimon](https://github.com/kensimon))

* Bug fixes:

### Bug or Regression

- Fix missing delete events on informer re-lists to ensure all delete events are correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible ([#115900](https://github.com/kubernetes/kubernetes/pull/115900), [@odinuge](https://github.com/odinuge)) [SIG API Machinery]

- When the `PodObservedGenerationTracking` feature gate was set, the kubelet populated `status.observedGeneration` to reflect the latest `metadata.generation` it observed for the pod. ([#130352](https://github.com/kubernetes/kubernetes/pull/130352), [@natasha41575](https://github.com/natasha41575)) [SIG API Machinery, Apps, CLI, Node, Release, Scheduling, Storage, Testing and Windows]...

### Bug or Regression

- Fix missing delete events on informer re-lists to ensure all delete events are correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible ([#115899](https://github.com/kubernetes/kubernetes/pull/115899), [@odinuge](https://github.com/odinuge)) [SIG API Machinery]

- Fixed missing delete events on informer re-lists to ensure all delete events were correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible ([#115620](https://github.com/kubernetes/kubernetes/pull/115620), [@odinuge](https://github.com/odinuge))

- Update the latest validated version of Docker to 20.10 ([#98977](https://github.com/kubernetes/kubernetes/pull/98977), [@neolit123](https://github.com/neolit123)) [SIG CLI, Cluster Lifecycle and Node]

### Bug or Regression

- Fix missing delete events on informer re-lists to ensure all delete events are correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible ([#115901](https://github.com/kubernetes/kubernetes/pull/115901), [@odinuge](https://github.com/odinuge)) [SIG API Machinery]

  - 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

- Remove offensive words from kubectl cluster-info command. ([#95202](https://github.com/kubernetes/kubernetes/pull/95202), [@rikatz](https://github.com/rikatz))
- Remove support for "ci/k8s-master" version label in kubeadm, use "ci/latest" instead. See [kubernetes/test-infra#18517](https://github.com/kubernetes/test-infra/pull/18517). ([#93626](https://github.com/kubernetes/kubernetes/pull/93626), [@vikkyomkar](https://github.com/vikkyomkar))

      * The standard `bridge` plugin have been validated to interoperate with
         the new CRI + CNI code path.
      * If you are using plugins other than `bridge`, make sure you have
        updated custom plugins to the latest version that is compatible.
* **CNI plugins now affect node readiness**
  * Kubelet will now block node readiness until a CNI configuration file is
    present in `/etc/cni/net.d` or a given custom CNI configuration path.