Release 2.20.0

- [FEATURE] QUIC and HTTP/3 Internet Draft 30 support.
- [FEATURE] Unreliable Datagram Extension support.
- [FEATURE] Adaptive congestion controller.
- [BUGFIX] Do not send MAX_STREAM_DATA frames on crypto streams.
- [BUGFIX] Fail with CRYPTO_BUFFER_EXCEEDED when too much CRYPTO
  data comes in.
- [BUFFIX] Spin bit is now strictly per path; value is reset on
  DCID change.
- [BUGFIX] Check that max value of max_streams_uni and
  max_streams_bidi TPs is 2^60.
- [BUGFIX] Close IETF mini conn immediately if crypto session
  cannot be initialized.
- Deprecate ID-28 (no browser uses it): it's no longer in the
  default versions list.
- New programs duck_server and duck_client that implement the
  experimental siduck-00 protocol.  They quack!
- IETF crypto streams: don't limit ourselves from sending.
- Command-line programs: turn off QL loss bits if -G is used, as
  Wireshark cannot decrypt QUIC packets when this extension is used.
- Turn all h3 framing unit tests back on.
- Fix malo initialization when compiled in no-pool mode.

bin/prog.c

@@ -357,6 +357,12 @@ prog_set_opt (struct prog *prog, int opt, const char *arg)
             }
         }
         prog->prog_keylog_dir = optarg;
+        if (prog->prog_settings.es_ql_bits)
+        {
+            LSQ_NOTICE("QL loss bits turned off because of -G.  If you want "
+                "to turn it on, just override: -G dir -o ql_bits=2");
+            prog->prog_settings.es_ql_bits = 0;
+        }
         return 0;
 #else
         LSQ_ERROR("key logging is not supported on Windows");