Version 1.9.x

V1.9.0
2026-04-22
Server Core
- [Security] Address remote exploit vulnerabilities in HTTP/3 engine.
- [Security] Address request smuggling issue for HTTP/2.
- [Security] Add `UnsafeAllow3F` rewrite rule flag to address unsafe `%3f` encoded URLs.
- [Feature] Add new WebAdmin UI.
- [Feature] Add built-in ACME support for auto SSL certificate fetching.
- [Feature] Add support for SCGI and uWSGI backends.
- [Feature] Drop SPDY protocol support.
- [Bug fix] Address various corner cases in AIO, cache module, and Node.js support.