nullable: true
                          type: boolean
                        allowHeaders:
                          description: List of HTTP headers that can be used when
                            requesting the resource.
                          items:
                            type: string
                          type: array

                          nullable: true
                          type: boolean
                        allowHeaders:
                          description: List of HTTP headers that can be used when
                            requesting the resource.
                          items:
                            type: string
                          type: array

* `stream_executor`
  * Top level `stream_executor` directory has been deleted, users should use equivalent headers and targets under `compiler/xla/stream_executor`.
* `tf.nn`
  * Added `tf.nn.experimental.general_dropout`, which is similar to `tf.random.experimental.stateless_dropout` but accepts a custom sampler function.