3.0.0 (2024-02-04)

• Rename "master" git branch to "main"

• Fix a bug that would appear on macOS whereby if we accept() a socket that is
  already gone, setting socket options would fail and take down the server. See
  #399

• Fixed testing of vendored asyncore code to not rely on particular naming for
  errno's. See #397

• HTTP Request methods and versions are now validated to meet the HTTP
  standards thereby dropping invalid requests on the floor. See
  #423

• No longer close the connection when sending a HEAD request response. See
  #428

• Always attempt to send the Connection: close response header when we are
  going to close the connection to let the remote know in more instances.
  #429

• Python 3.7 is no longer supported. Add support for Python 3.11, 3.12 and
  PyPy 3.9, 3.10. See #412

• Document that trusted_proxy may be set to a wildcard value to trust all
  proxies. See #431

Updated Defaults

• clear_untrusted_proxy_headers is set to True by default. See
  #370