Log Message:
py-daphne: updated to 4.0.0

4.0.0 (2022-10-07)
------------------

Major versioning targeting use with Channels 4.0 and beyond. Except where
noted should remain usable with Channels v3 projects, but updating Channels to \ 
the latest version is recommended.

* Added a ``runserver`` command to run an ASGI Django development server.

  Added ``"daphne"`` to the ``INSTALLED_APPS`` setting, before
  ``"django.contrib.staticfiles"`` to enable:

  INSTALLED_APPS = [
    "daphne",
    ...
  ]

  This replaces the Channels implementation of ``runserver``, which is removed
  in Channels 4.0.

* Made the ``DaphneProcess`` tests helper class compatible with the ``spawn``
  process start method, which is used on macOS and Windows.

  Note that requires Channels v4 if using with ``ChannelsLiveServerTestCase``.

* Dropped support for Python 3.6.

* Updated dependencies to the latest versions.

  Previously a range of Twisted versions have been supported. Recent Twisted
  releases (22.2, 22.4) have issued security fixes, so those are now the
  minimum supported version. Given the stability of Twisted, supporting a
  range of versions does not represent a good use of maintainer time. Going
  forward the latest Twisted version will be required.

* Set ``daphne`` as default ``Server`` header.

  This can be configured with the ``--server-name`` CLI argument.

  Added the new ``--no-server-name`` CLI argument to disable the ``Server``
  header, which is equivalent to ``--server-name=` (an empty name).

* Added ``--log-fmt`` CLI argument.

* Added support for ``ASGI_THREADS`` environment variable, setting the maximum
  number of workers used by a ``SyncToAsync`` thread-pool executor.

  Set e.g. ``ASGI_THREADS=4 daphne ...`` when running to limit the number of
  workers.

* Removed deprecated ``--ws_protocols`` CLI option.