1.3.1

Fixed

• A read timeout was reported as a broken connection on PHP 8.1 and newer. fread() returns
  false there where earlier versions returned an empty string, and the client took that for a
  dead stream — so the default framing mode, which ends a response on a quiet interval, threw
  ConnectionException: Request failed, broken connection. on every request against a real
  socket. A timeout is now told apart from a broken stream by
  stream_get_meta_data()['timed_out'].

  Present since 1.0 and dormant until PHP 8.1 changed the return value. The suite missed it
  because it drives the client through a php:// stream wrapper, whose read cannot return
  false; a socket-pair test now covers the real thing.