http-v3.12.0

actix/actix-webhttp-v3.12.0Feb 18, 2026by JohnTitor

AI Summary

This release improves HTTP/2 performance with increased flow control window sizes, adds TCP_NODELAY configuration, fixes several body and connection handling issues, and updates the minimum supported Rust version to 1.88.

Key Highlights

MSRV updated to 1.88
Increased default HTTP/2 flow control window sizes
TCP_NODELAY configuration option
Fix for truncated body ending without error
Fix for lingering sockets and client stalls

New Features

Exposed configuration methods to improve upload throughput
TCP_NODELAY config/method
Fix truncated body ending when connection closed abnormally
Fix lingering sockets and client stalls when responding early to dropped chunked request payloads
Do not compress 206 Partial Content responses

Full Release Notes

- Minimum supported Rust version (MSRV) is now 1.88.
- Increase default HTTP/2 flow control window sizes. [#3638]
- Expose configuration methods to improve upload throughput. [#3638]
- Fix truncated body ending without error when connection closed abnormally. [#3067]
- Add config/method for `TCP_NODELAY`. [#3918]
- Do not compress 206 Partial Content responses. [#3191]
- Fix lingering sockets and client stalls when responding early to dropped chunked request payloads. [#2972]

[#3638]: https://github.com/actix/actix-web/issues/3638
[#3067]: https://github.com/actix/actix-web/pull/3067
[#3918]: https://github.com/actix/actix-web/pull/3918
[#3191]: https://github.com/actix/actix-web/issues/3191
[#2972]: https://github.com/actix/actix-web/issues/2972