- Kube-scheduler implements scheduling hints for the VolumeRestriction plugin.
  Scheduling hints allow the scheduler to retry scheduling Pods that were previously rejected by the VolumeRestriction plugin if a new pvc added, and the pvc belongs to pod. ([#125280](https://github.com/kubernetes/kubernetes/pull/125280), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG Scheduling and Storage]
- Kube-scheduler implements scheduling hints for the VolumeZone plugin.

- Kube-scheduler implemented scheduling hints for the `NodeAffinity` plugin. The scheduling hints allowed the scheduler to only retry scheduling a Pod that had been previously rejected by the `NodeAffinity` plugin if a new Node or a Node update matched the Pod's node affinity. ([#122309](https://github.com/kubernetes/kubernetes/pull/122309), [@carlory](https://github.com/carlory))

  the `nf_conntrack_tcp_be_liberal` is not set. ([#120412](https://github.com/kubernetes/kubernetes/pull/120412), [@aojea](https://github.com/aojea))
- `kube-scheduler` implemented scheduling hints for the `NodeUnschedulable` plugin.
  The scheduling hints allow the scheduler to only retry scheduling a `Pod`

- Topology Aware Hints now ignores unready endpoints when assigning hints. ([#106510](https://github.com/kubernetes/kubernetes/pull/106510), [@robscott](https://github.com/robscott))

- Added validation to ensure that if `service.kubernetes.io/topology-aware-hints` and `service.kubernetes.io/topology-mode` annotations are both set, they are set to the same value.Also Added deprecation warning if `service.kubernetes.io/topology-aware-hints` annotation is used. ([#116612](https://github.com/kubernetes/kubernetes/pull/116612), [@robscott](https://github.com/robscott))

- Kube-proxy log now shows the "Skipping topology aware endpoint filtering since no hints were provided for zone" warning under the right conditions ([#101857](https://github.com/kubernetes/kubernetes/pull/101857), [@dervoeti](https://github.com/dervoeti)) [SIG Network]

- Remove support for the Service `topologyKeys` field (alpha) and the `kube-proxy` implementation of it. This field was deprecated several cycles ago. This functionality is replaced by the combination of automatic topology hints per-endpoint (alpha) and the Service `internalTrafficPolicy` field (alpha). ([#102412](https://github.com/kubernetes/kubernetes/pull/102412), [@andrewsykim](https://github.com/andrewsykim))

- The `TopologyAwareHints` feature gate is now enabled by default. This will allow users to opt-in to Topology Aware Hints by setting the `service.kubernetes.io/topology-aware-hints` on a Service. This will not affect any Services without that annotation set. ([#108747](https://github.com/kubernetes/kubernetes/pull/108747), [@robscott](https://github.com/robscott))

The key updated docs are:

* Python Types Intro:
    * [Type Hints with Metadata Annotations](https://fastapi.tiangolo.com/python-types/#type-hints-with-metadata-annotations).
* Tutorial:

- Fixed Cronjob `status.lastSuccessfulTime` not populated by a manually triggered ([#118530](https://github.com/kubernetes/kubernetes/pull/118530), [@carlory](https://github.com/carlory))
- Fixed Topology Aware Hints not working when the `topology.kubernetes.io/zone` label is added after Node creation. ([#117245](https://github.com/kubernetes/kubernetes/pull/117245), [@tnqn](https://github.com/tnqn))