- Extended resources backed by DRA feature allowed cluster operator to specify `extendedResourceName` in `DeviceClass`, and application operator to continue using extended resources in pod's requests to request for DRA devices matching the DeviceClass.
  

when *upgrading*, the previous v1alpha3 API is still supported, so existing deployments and DRA drivers based on v1alpha3 continue to work. *Downgrading* from 1.32 to 1.31 with DRA resources in the cluster (resourceclaims, resourceclaimtemplates, deviceclasses, resourceslices) is *not* supported because the new v1beta1 is used as storage version and not readable by 1.31. ([#127511](https://github.com/kubernetes/kubernetes/pull/127511), [@pohly](https://github.com/pohly)) [SIG API Machinery, Apps, Auth,...