OpenLiteSpeed v1.9.0 Now Available
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Lisa Clarke
Apr 22, 2026, 4:44:57 PM (7 days ago) Apr 22
to OpenLiteSpeed Development
Announcing:
OpenLiteSpeed v1.9.0
In this release: Security updates, new WebAdmin UI, bug fixes, and more!
RELEASE LOG:
[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.
https://openlitespeed.org/release-log/
How to update OpenLiteSpeed: https://openlitespeed.org/kb/how-to-upgrade-openlitespeed/
Cheers!
OpenLiteSpeed v1.9.0
In this release: Security updates, new WebAdmin UI, bug fixes, and more!
RELEASE LOG:
[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.
https://openlitespeed.org/release-log/
How to update OpenLiteSpeed: https://openlitespeed.org/kb/how-to-upgrade-openlitespeed/
Cheers!
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