------------------
* The new process-specific channel support is now implemented, resulting in
significantly less traffic to your channel backend.
* Native twisted blocking support for channel layers that support it is now
used. While it is a lot more efficient, it is also sometimes slightly more
latent; you can disable it using --force-sync.
* Native SSL termination is now correctly reflected in the ASGI-HTTP `scheme`
key.
* accept: False is now a valid way to deny a connection, as well as close: True.
* HTTP version is now correctly sent as one of "1.0", "1.1" or "2".
* More command line options for websocket timeouts