- The scheduler retries scheduling Pods rejected by PreFilterResult (PreFilter plugins) more appropriately; it now takes events registered in those rejector PreFilter plugins into consideration. ([#122251](https://github.com/kubernetes/kubernetes/pull/122251), [@olderTaoist](https://github.com/olderTaoist)) [SIG Scheduling and Testing]

- Kube-scheduler now retries scheduling Pods rejected by the PodTopologySpread plugin when related Pods are created, deleted, updated,...

- The scheduling queue didn't notice any extenders' failures, it could miss some cluster events,
  and it could end up Pods rejected by Extenders stuck in unschedulable pod pool in 5min in the worst-case scenario.
  Now, the scheduling queue notices extenders' failures and requeue Pods rejected by Extenders appropriately. ([#122022](https://github.com/kubernetes/kubernetes/pull/122022), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling]

- Kube-apiserver: Avoid unnecessary repeated calls to `admission webhooks` that reject an update or delete request. ([#104182](https://github.com/kubernetes/kubernetes/pull/104182), [@liggitt](https://github.com/liggitt))...

- The scheduling queue didn't notice any extenders' failures, it could miss some cluster events,
  and it could end up Pods rejected by Extenders stuck in unschedulable pod pool in 5min in the worst-case scenario.
  Now, the scheduling queue notices extenders' failures and requeue Pods rejected by Extenders appropriately. ([#122044](https://github.com/kubernetes/kubernetes/pull/122044), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling]

  // List of container images on this node
  // +optional
  repeated ContainerImage images = 8;

  // List of attachable volumes in use (mounted) by the node.
  // +optional
  repeated string volumesInUse = 9;

  // List of volumes that are attached to the node.
  // +optional
  repeated AttachedVolume volumesAttached = 10;

### Other notable changes

* Connections from Pods to Services with 0 endpoints will now ICMP reject immediately, rather than blackhole and timeout. ([#72534](https://github.com/kubernetes/kubernetes/pull/72534), [@thockin](https://github.com/thockin))

- The `rejected` label in `apiserver_admission_webhook_admission_duration_seconds` metrics now properly indicates if the request was rejected. ([#81399](https://github.com/kubernetes/kubernetes/pull/81399), [@roycaihw](https://github.com/roycaihw))

* Fix Forward chain default reject policy for IPVS proxier ([#62007](https://github.com/kubernetes/kubernetes/pull/62007), [@m1093782566](https://github.com/m1093782566))
* fix nsenter GetFileType issue in containerized kubelet ([#62467](https://github.com/kubernetes/kubernetes/pull/62467), [@andyzhangx](https://github.com/andyzhangx))

- Fixed a regression that could incorrectly reject pods with `OutOfCpu` errors if they were rapidly scheduled after other pods were reported as complete in the API. The Kubelet now waits...