Low-level HTTP 1 and 2 processing library "hyper" gets released.

It contains fewer features than 0.14, (relatively) "high-level" client and server are gone. Only hyper::{client,server}::conn remain.

Also there is some IO abstraction: though it still depends on Tokio (only the sync feature), it should be easier to connect other runtimes. Just using it with Tokio like before is though less straightforward.

Do not hurry to upgrade your project from 0.14 to 1, better wait for better support in the ecosystem.