You're right, that site should be updated with those as other parts of the ecosystem that aren't yet mature. There's work on non-blocking IO at https://github.

You're right, that site should be updated with those as other parts of the ecosystem that aren't yet mature. There's work on non-blocking IO at https://github.com/carllerche/mio https://github.com/carllerche/mio, which is looking like one of the more promising approaches, as well as https://github.com/carllerche/eventual https://github.com/carllerche/eventual which provides higher-level abstractions over it. There has been some discussion of adding some language support for something like async/await/yield from other languages, but nothing concrete in the near future on the language front. So, there's usable third-party libraries for it (at least, if you're on a Unix like platform), language support is in the realm of "it would be nice someday".