Asio (asio) is a freely available, open-source, cross-platform C++ library for network programming. It provides developers with a asynchronous I/O model.
Boost.Asio (boost::asio) was accepted into Boost on 30 December 2005 after a 20-day review. The library has been developed by Christopher M. Kohlhoff since 2003. A networking proposal based on Asio was submitted to the C++ standards committee in 2006 for possible inclusion in the second Technical Report on C++ Library Extensions (TR2)C++ TR2 Networking Library Proposal, however has not been integrated, with the most recent development in 2020. Instead, in C++26, the std::execution framework (based on NVIDIA's stdexec library) was adopted into the C++ Standard Library as C++'s asynchronous programming framework.
As of 2024, Asio continues to evolve, with ongoing contributions from the community and enhancements to its functionality. The library is regularly updated to support the latest C++ standards and best practices in network programming. Developers are encouraged to explore the extensive documentation and tutorials available on the official Asio website, which cover a wide range of topics, from basic usage to advanced features. Boost.Asio also supports working with C++20 coroutines.C++20 Coroutines Support, boost.org. Retrieved 16 April 2026
References
External links Asio home page Boost Asio documentation Samples