Version 1.9.x

V1.9.2
2026-08-06
Server Core
- [Improvement] Strengthen HTTP/2/HTTP/3 header validation.
- [Improvement] Improve node application process management.
- [Update] lsquic to v4.9.3.
- [Feature] Add support for MKCALENDAR request method.
- [Feature] Add built-in ACME support for auto SSL certificate fetching.
V1.9.1
2026-06-30
Server Core
- [Security] Thorough general code hardening.
- [Security] HTTP2/HTTP3 protocol hardening.
- [Improvement] Switch regular expression engine from PCRE to PCRE2.
- [Bug Fix] Address issues in new webadmin.
- [Bug Fix] Address issues in ACME Auto Cert.
- [Bug Fix] Address issues in namespace.
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.