I've had a very similar question and asked it to the quinn authors. The response was that QUIC's way of creating/destroying channels is so lightweight that in o

I've had a very similar question and asked it to the quinn authors. The response was that QUIC's way of creating/destroying channels is so lightweight that in order to get unordered-ness you can use ephemeral channels. As for unreliable-ness there is an extension to QUIC that isn't implemented yet. They then opened an issue after my inquiry: https://github.com/djc/quinn/issues/207 https://github.com/djc/quinn/issues/207