// compatibility, when namespace isn't specified in dataSourceRef,
  // both fields (dataSource and dataSourceRef) will be set to the same
  // value automatically if one of them is empty and the other is non-empty.
  // When namespace is specified in dataSourceRef,
  // dataSource isn't set to the same value and must be empty.

- `k8s.io/dynamic-resource-allocation`: can now handle a `selected` node which isn't listed
  as `potential` node. ([#120871](https://github.com/kubernetes/kubernetes/pull/120871), [@pohly](https://github.com/pohly))

- Dynamic resource allocation: when a claim uses "wait for first consumer" allocation (the default), then it will now get deallocated after it was used by a pod. That ensures that the next pod isn't affected by previous scheduling decision and that resources are not kept allocated unless really needed. If keeping a claim allocated is desired, use "immediate allocation." ([#118936](https://github.com/kubernetes/kubernetes/pull/118936), [@pohl...

- Forbid to set matchLabelKeys when labelSelector isn’t set in topologySpreadConstraints ([#116535](https://github.com/kubernetes/kubernetes/pull/116535), [@denkensk](https://github.com/denkensk)) [SIG API Machinery, Apps and Scheduling]