We push millions of requests daily through Hyper 0.11, which is async and uses tokio. I've had crazy three month uptimes for these systems. Basically they just do their work fast and I don't really need to focus on fixing any problems with them.
And did I tell my test coverage is quite minimal with these projects.
Be aware that hyper is still actively evolving towards 1.0, and is likely to experience breaking changes before stabilising. You can also see the 1.0 issue milestone.
And did I tell my test coverage is quite minimal with these projects.