*   Extends the device plugin checkpoint data to record registered resources so that we can finish resource removing devices even upon kubelet restarts.
    *   Passes sourcesReady from kubelet to the device plugin to avoid removing inactive pods during the grace period of kubelet restart.

  - The `--deserialization-cache-size` flag is deprecated, and will be removed in a future release. The flag is inactive since the etcd2 storage backend was removed. ([#69842](https://github.com/kubernetes/kubernetes/pull/69842), [@liggitt](https://github.com/liggitt))