Hypercorn

----------------

* Bugfix HTTP/1 connection recycling. This should also result in
better performance under high load.
* Bugfix trio syntax error, (MultiError filter usage).
* Bugfix catch NotADirectoryError alongside FileNotFoundError.
* Bugfix support multiple workers on Windows for Python 3.8.

----------------

* Bugfix catch NotImplementedError alongside AttributeError for
Windows support.
* Allow the access log atoms to be customised (follows the Gunicorn
API expectations).
* Support Python 3.8 (formally, already worked with Python 3.8).
* Bugfix add scope check in DispatcherMiddleware.
* Utilise the H3_ALPN constant to ensure the correct h3 draft versions
are advertised.

----------------

* Update development status classifier to Beta.
* Allow the Alt-Svc headers to be configured.
* Add dispatcher middleware, allowing multiple apps to be mounted and
served depending on the root path.
* Support logging configuration setup.
* Switch the access log format to be the same as Gunicorn's. The
previous format was ``%(h)s %(S)s %(r)s %(s)s %(b)s %(D)s``.

----------------

* Bugfix server push pseudo headers - the bug would result in HTTP/2
connections failing if server push was attempted.

----------------

* Bugfix ``--error-logfile`` to work when used.
* Bugfix Update keep alive after handling data (to ensure the
connection isn't mistakenly considered idle).
* Bugfix follow the ASGI specification by filtering and rejecting
Pseudo headers sent to and received from any ASGI application.
* Bugfix ensure keep alive timeout is not active when pipelining.
* Bugfix clarify lifespan error messages.
* Bugfix remove signal handling from worker_serve - this allows the
``serve`` functions to be used as advertised i.e. on the non-main
thread.
* Support HTTP/3 draft 23 and server push (HTTP/3 support is an
experimental optional extra).

----------------

* Bugfix correctly handle HTTP/3 request with no body.
* Bugfix correct the alt-svc for HTTP/3.