This directory contains standalone Asio library from:

https://github.com/chriskohlhoff/asio

Currently at version 1.12.0+ (commit: b0926b61b057ce563241d609cae5768ed3a4e1b1)

Asio official release versions are best described here:

http://www.boost.org/doc/libs/1_66_0/doc/html/boost_asio/history.html
