Cowboy 2.13.0 has been released!

Cowboy 2.13 focuses on improving the performance of Websocket, as well as the HTTP protocols. It also contains a variety of new features and bug fixes.

The performance improvements were detailed in the Performance improvements in Cowboy 2.13 article.

Cowboy 2.13 is the first release to feature experimental support for the HTTP/3 protocol, including Websocket over HTTP/3.

Cowboy 2.13 requires Erlang/OTP 24.0 or greater. It is tested and supported on Linux, macOS and Windows.

A complete list of changes can be found in the migration guide: Migrating from Cowboy 2.12 to 2.13.

You can donate to this project via GitHub Sponsors.

As usual, feedback is appreciated, and issues or questions should be sent via Github tickets or discussions. We also have a new Discord server. Join Erlang OSS Discord now!