Version 1.6.x



Server Core

  • [Improvement] Fixed access log entries listing HTTP/1.1 for HTTP/2 connections.
  • [Update] Reduced the number of QUIC log entries written at lower levels.
  • [Update] Updated LSQUIC to v2.10.6.
  • [QUIC] Fixed HTTP/3 framing: don’t misinterpret rare occurence as error.
  • [QUIC] Fixed compilation on FreeBSD.
  • [Bug Fix] Fixed file uploads failing for QUIC connections.
  • [Bug Fix] Fixed some errors with the tool.
  • [Bug Fix] Fixed lswsctrl restart command failing on CentOS.



Server Core

  • [New Feature] Expired cache entries are now automatically removed to free up space.
  • [New Feature] Updated cache to only serve litespeed cache related headers for frontend requests.
  • [New Feature] Skip rewrite processing for Let’s Encrypt verification requests.
  • [Improvement] Fixed some minor issues in internal cache manager module.
  • [Improvement] REFRESH URI cache requests are now equivalent to a stale purge.
  • [Improvement] Added response header entry for URI stale purge.
  • [Improvement] Improved cache purge accuracy.
  • [Update] Update context configure to auto add a trailing ‘/’ to the location if it is a directory.
  • [Update] Update tool to add support the -e paramater flag which is used to only upgrade binaries.
  • [Bug Fix] Fixed cache cleanup not getting called when “storagepath” config setting was not set.
  • [Bug Fix] Fixed a crash bug when parsing rewrite rules that occured in very rare cases.



Server Core

  • [Tuning] Ensure that buffered SSL data is flushed near the end of related event processing.
  • [Update] Updated lsquic to version 2.10.1 (
  • [Bug Fix] Fixed a code regression causing some old bugs to be reintroduced (Cannot enable QUIC, http2 upload issue, etc).
  • [Bug Fix] process start time is now detected correctly.
  • [Bug Fix] Fixed a NodeJS wrapper script failing to handle startup files referenced by absolute path.



Server Core

  • [Security] Update WebAdmin Console to avoid serving PHP files not belonging to it.
  • [New Feature] Skip rewrite processing for Let’s encrypt verification requests.
  • [New Feature] Add “Subject Alternative Name” item to self signed certificate.
  • [Update] Updated lsquic to version 2.9.0 (
  • [Bug Fix] Fixed “uninitialized member”, “connect with empty socket address”, and “virtual memory buffer uninitialized” crash bugs.
  • [Bug Fix] Fixed a resource leak bug caused by unclosed file handles.
  • [Bug Fix] Fixed static file contexts not serving correctly.
  • [Bug Fix] reCAPTCHA verification page is no longer cached.
  • [Bug Fix] Fixed old server process lingering after restart when active QUIC clients existed.



Server Core

  • [Security] Initial webadmin password for new installations is now randomized.
  • [Security] Improved WebAdmin Console security by strictly checking request URLs.
  • [Update] Incorporated version 1.5.10 changes.
  • [Update] Updated lsquic to version 2.8.3 (
  • [Update] Updated WebAdmin Console to show new releases for both the current release branch and the latest release branch.
  • [Update] Updated Cache module to track and write file errors and abort serving files from cache when an error occurs.
  • [Bug Fix] Disable memory mappping when serving static files to avoid crashes in some cases.
  • [Bug Fix] Fixed a memory access bug when logging errors.
  • [Bug Fix] Fixed some crashes involving Spdy connections in older browsers.
  • [Bug Fix] Fixed handling for virtual host URIs that do not end in a ‘/’ character.
  • [Bug Fix] Fixed cache timer not being called when no cache storage path was set.



Server Core

  • [Updated] Added some lsphp73 dependencies to installation.
  • [Update] Updated lsquic to version 2.6.5(
  • [Bug Fix] Fixed “use after free” issue by Avoiding recursive NtwkIOLink::handleEvents() calls.
  • [Bug Fix] Fixed permission issues with `autoupdate/` and `tmp/` directories.
  • [Bug Fix] Fixed a bug that caused excessive buffering for HTTP/2 connections.
  • [Bug Fix] Fix Context level external redirects causing errors.



Server Core

  • [New Feature] Added support for ‘LS_STDERR_LOG’ environment variable to set up the stderr log file for started processes.
  • [Update] Update mod_security-ls to always go through reqbody and respBody phases.
  • [Update] lsphp 73 is now used on Linux platforms.
  • [Update] Updated lib lsquic to v2.6.3(
  • [Update] Default conf values for maxConns, procSoftLimit, procHardLimit, and env PHP_LSAPI_CHILDREN have been changed to be more reasonable.
  • [Bug Fix] Fixed a cache module and mod_security-ls conflict that could cause a crash.
  • [Bug Fix] Fix some mod_security-ls compilation issues.

Cache Module

  • [Bug Fix] Fixed a rare crash that occurred when failing to create new cache entries.



Server Core

  • [Update] Removed libgeoip dependency.
  • [Update] Use LSPHP 7 by default.
  • [Update] Update to liblsquic 2.4.10 (fixing several bugs relating to QUIC and HTTP/3).
  • [Bug Fix] Fixed a bug causing a “[modcompress] AddHooks failed” error.
  • [Bug Fix] Fixed “No request delivery notification has been received from LSAPI application …” error being logged when a background process’ running time is larger than 10 seconds
  • [Bug Fix] Fixed debug log toggle not working.
  • [Bug Fix] Fixed Accept-Encoding header being case sensitive.
  • [Bug Fix] Fixed UDS files not being cleaned up.
  • [Bug Fix] Fixed installation issue with the lshttpd service.
  • [Bug Fix] Fixed a network throttling bug that prevented paused SSL connections from being resumed.

Cache Module

  • [New Feature] Added stale purge support. With this feature, only the first visitor to a stale cache page will hit the backend with subsequent visitors getting served the stale cache copy until the page has finished being re-cached by the first request.



Server Core

  • [Improvement] Restart detached PHP processes when PHP binary is changed.
  • [Update] Update HTTP/3 support to include the latest HTTP/3 draft (h3-23).
  • [Update] Update QUIC to make BBR congestion control the algorithm used by default.
  • [Update] Update some error log message levels to be more reasonable.
  • [Bug Fix] Fixed a memory issue in pagespeed module.
  • [Bug Fix] Fixed some errors to avoid errors.
  • [Bug Fix] Fixed a bug in to ensure that `./configure` still works.
  • [Bug Fix] Fixed an access log bug where traffic byte count was sometimes not reset between requests.



Server Core

  • [Major New Feature] Added Google QUIC and HTTP/3 (Internet Draft 22) support
  • [New Feature] Added, a new build tool to build from source code (including any dependencies) for most platforms in a single click.
  • [Improvement] Added compilation support for FreeBSD, Mac, Ubuntu 19.
  • [Bug Fix] Fixed a PHP memory limit bug.