10 releases (6 breaking)

Uses new Rust 2024

0.16.1 Jan 31, 2026
0.15.0 Jan 9, 2026
0.14.0 Jun 5, 2025
0.13.0 Jan 28, 2025
0.10.5 May 24, 2024

#370 in Network programming

79,030 downloads per month
Used in 192 crates (12 directly)

MIT/Apache

2MB
38K SLoC

Iroh Quinn

This is a fork based on quinn, maintained by n0. Currently published to crates.io under iroh-quinn.

Main differences to upstream quinn

  • Small API improvements
  • Implements additional QUIC extensions
    • Multipath
    • QAD
    • QNT
  • Expanded support for QLOG

Quinn is a pure-rust, async-compatible implementation of the IETF [QUIC][quic] transport protocol.

  • Simultaneous client/server operation
  • Ordered and unordered stream reads for improved performance
  • Works on stable Rust, tested on Linux, macOS and Windows
  • Pluggable cryptography, with a standard implementation backed by [rustls][rustls] and [ring][ring]
  • Application-layer datagrams for small, unreliable messages
  • Future-based async API
  • Minimum supported Rust version of 1.83.0

License

Copyright 2025 The quinn developers Copyright 2025 N0, INC.

This project is licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this project by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies

~8–57MB
~1M SLoC