- The Kubernetes API server merged selectors built from `matchLabelKeys` into the `labelSelector` of `topologySpreadConstraints`, aligning Pod Topology Spread behavior with Inter-Pod Affinity. To prevent breaking existing Pods using `matchLabelKeys`, this scheduler behavior was preserved until v1.34. Upgrades from v1.32 to v1.34 should be done incrementally (v1.32 → v1.33 → v1.34), ensuring Pods created at v1.32 with `matchLabelKeys` are scheduled before reaching v1.34. Controllers relying on...

- Forbid to set matchLabelKeys when labelSelector is not set in topologySpreadConstraints ([#116535](https://github.com/kubernetes/kubernetes/pull/116535), [@denkensk](https://github.com/denkensk))

- Graduate the `MatchLabelKeys` (MismatchLabelKeys) feature in PodAffinity (PodAntiAffinity) to GA ([#130463](https://github.com/kubernetes/kubernetes/pull/130463), [@sanposhiho](https://github.com/sanposhiho)) [SIG API Machinery, Apps, Node, Scheduling and Testing]

- The `kube-scheduler` `selectorSpread` plugin has been removed, please use the `podTopologySpread` plugin instead. ([#117720](https://github.com/kubernetes/kubernetes/pull/117720), [@kerthcet](https://github.com/kerthcet))
- The `matchLabelKeys/mismatchLabelKeys` feature is introduced to the hard/soft `PodAffinity/PodAntiAffinity`. ([#116065](https://github.com/kubernetes/kubernetes/pull/116065), [@sanposhiho](https://github.com/sanposhiho))

- Graduate PodDisruptionConditions to GA and lock ([#125461](https://github.com/kubernetes/kubernetes/pull/125461), [@mimowo](https://github.com/mimowo)) [SIG Apps, Node, Scheduling and Testing]
- Graduated MatchLabelKeys/MismatchLabelKeys feature in PodAffinity/PodAntiAffinity to Beta. ([#123638](https://github.com/kubernetes/kubernetes/pull/123638), [@sanposhiho](https://github.com/sanposhiho)) [SIG API Machinery, Apps, Scheduling and Testing]