[tatterdemalion]

Hyper is not yet async, the preliminary work in the PR you linked to is for a version which has not been pushed to crates.io and is not finished yet.

[bbatha]

Hyper 0.9 is async. It does not use futures/tokio ecosystem so it's ergonomics are weak in places, particularly on the client side. I believe the tokio branch of hyper is basically complete and only waiting on tokio to release.