* Introduced API `tf.saved_model.experimental.read_fingerprint(export_dir)` for reading the fingerprint of a SavedModel.
* `tf.random`
  * Added non-experimental aliases for `tf.random.split` and `tf.random.fold_in`, the experimental endpoints are still available so no code changes are necessary.

TPU device, and then (optionally) in-place updates variables using the program
outputs, as specified in attributes device_var_reads_indices (program input
indices from directly reading variables) and device_var_updates_indices (program
output indices used to update variables, -1 means no-update/read-only). Such
program outputs are consumed by these variables will not appear in the op