This is an old revision of the document!
LiteSpeed Web Server Changelog
Version 5.4.2
Build 1
[Bug Fix] Fixed a bug introduced in v5.4.2 build 0 where some mod_security rules could cause false positives. [Bug Fix] Fixed a bug that caused 503 errors when the configuration of python/node/ruby selector applications where updated. [Bug Fix] Minor bug fixes in QUIC and HTTP/3 engine.
Build 0
[New Feature] Updated QUIC implementation to support IETF HTTP/3 draft 23. [New Feature] BBR congestion control for QUIC and HTTP/3. [New Feature] "Require env XXXX" access control support. [New Feature] User/Account level bandwidth throttling for Redis dynamic virtual hosting. [Improvement] Further HTTPS SSL layer performance tuning. [Improvement] Automatically restart running PHP processes when PHP binary changes are detected. [Improvement] Automatically convert ea-phpXX handler configuration into a phpXX handler when an ea-php handler is not available. [Improvement] Improved AIO access logging to minimize disk I/O. [Improvement] Avoid reCAPTCHA verification on AJAX requests to minimize false positives. [Improvement] Built-in error and reCAPTCHA verification pages are now responsive. [Improvement] Remove '[' ']' enclosure for IPv6 addresses in the access log and request environment variable 'REMOTE_ADDR'. [Improvement] Reduced memory usage to improve server scalability. [Improvement] Improved accuracy of server real-time statistics. [Improvement] Enable SSL SHM session cache for Apache HTTPS vhost when server level SSH session cache is enabled. [Improvement] Disable TLSv1.0 by default for better PCI compliance. [Improvement] Automatically disable HTTP/2, SPDY, and QUIC for CSF messenger vhosts on port 8887. [Improvement] Added "SmartPush no-cookie" directive to disable cookies used for HTTP/2 and QUIC smart push. [Improvement] Added `lsws/logs/critical_alert` log file for writing common license errors that could cause LSWS to stop working. [Improvement] Improved compatibility with CloudLinux python selector. [Improvement] Improved modsecurity engine compatibility. [Improvement] Send "Alt-Svc" header advertising QUIC and HTTP/3 support only once per connection. [Bug Fix] Fixed WordPress brute force protection bugs that were causing false positives and crashes. [Bug Fix] Fixed a bug causing HTTP/2 requests to stall under rare conditions. [Bug Fix] Fixed a bug causing broken non-keepalive HTTPS responses. [Bug Fix] Fixed a Layer4 tunnel bug that caused random crashes. [Bug Fix] Fixed Apache sometimes starting inside the lshttpd cgroup when switching from LSWS to Apache. [Bug Fix] Fixed all LSPHP processes not being stopped when switching from LSWS to Apache. [Bug Fix] Fixed an .htaccess cache bug that caused the server's default PHP handler to be used instead of configured per-vhost suEXEC handlers. [Bug Fix] Per Apache vhost PHP 7.4 handler now runs in suEXEC mode.
Version 5.4.1
Build 8
[Improvement] Improved python application configuration to allow swapping applications on the same URL. [Bug Fix] Disable CRIU feature to avoid server downtime after a recent CloudLinux CRIU library update began causing lscgid to crash. [Bug Fix] Fixed a mod_security configuration bug that reordered some rules under certain conditions. [Bug Fix] Fixed a systemd warning under Plesk 18.0.
Build 7
[Improvement] Automatically disable HTTP/2, SPDY, and QUIC for CSF messenger vhost on port 8887. [Improvement] Added "SmartPush no-cookie" directive to disable cookies used for HTTP/2 and QUIC smart push. [Improvement] Added `lsws/logs/critical_alert` log file for writing common licensing problems that could cause LSWS to stop working. [Bug Fix] Fixed a compatibility issue with CloudLinux python selector.
Build 6
[Bug Fix] Fixed a bug introduced in build 5 that caused the server to crash when "require env xxxx" was used. [Bug Fix] Fixed QUIC support for FreeBSD. [Bug Fix] Changed "Accept-Encoding" value to be case insensitive. [Improvement] Use 'pkill' instead of 'killall' in various scripts to minimize dependencies on installed system packages. [Improvement] Update "Alt-Svc" string for gQUIC advertising.
Build 5
[FEATURE] Enable SSL SHM session cache for Apache HTTPS vhost when server level SSH session cache is enabled. [FEATURE] Added support for "Require env XXXX" access control. [TUNING] Disable TLSv1.0 by default for better PCI compliance. [BUGFIX] Make statistics more accurate for requests processed . [BUGFIX] Fixed a minor regression in 5.4 that performs redirect before rewrite when URL without a trailing slash pointing to a directory.
Build 4
[Improvement] Automatically restart running PHP processes after detecting PHP binary updates. [Improvement] Automatically converted ea-phpXX handler configuration to phpXX handler when ea-php handler is not available. [Improvement] Improved AIO access logging to minimize disk I/O. [Bug Fix] Close unused REUSEPORT socket. [Bug Fix] Make "requests processed" counter more accurate in real-time report. [Bug Fix] Make per Apache vhost PHP 7.4 handler run in suEXEC mode. [Bug Fix] Fixed a bug reading CGI 'umask' configuration as an octal number.
Build 3
[Bug Fix] Fixed a .htaccess cache bug that caused the server's default PHP handler to be used instead of per-vhost suEXEC handlers. [Bug Fix] Fixed a WP brute force protection bug that occasionally caused 100% CPU usage. [Bug Fix] Fixed a divide by zero bug that was causing server crashes. [Bug Fix] Fixed a mod_security engine bug where `@geolookup` would not work properly with new MaxMind DB files. [Tuning] Reduced Brotli compression memory usage. [Tuning] Allow mapping www.TLD.com and TLD.com to different native virtual hosts.
Build 2
[New Feature] Added an option to allow generation of full real time status report, including idle virtual host and external app stats. [Bug Fix] Fixed an RBL compatibility issue with modsecurity rules from Imunify360. [Bug Fix] Fixed a Layer4 tunnel bug that caused random crashes. [Bug Fix] Fixed Apache sometimes starting inside the lshttpd cgroup when switching from LSWS to Apache. [Bug Fix] Fixed all LSPHP processes not being stopped when switching from LSWS to Apache. [Bug Fix] Fixed a QuicEngine bug that sometimes caused a server crash.
Build 1
[Improvement] Avoid reCAPTCHA verification on AJAX requests to minimize false positives. [Improvement] Make built-in error and reCAPTCHA verification pages responsive. [Improvement] Remove '[' ']' enclosure for IPv6 addresses in the access log and request environment variable REMOTE_ADDR. [Bug Fix] Fixed a bug that caused HTTP/2 requests to stall under rare conditions. [Bug Fix] Fixed a bug that caused broken non-keepalive HTTPS responses. [Bug Fix] Fixed a bug that caused WordPress brute force protection false positive.
Build 0
[Security] Addressed recent HTTP/2 DoS advisories (https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md). Fixed CVE-2019-9516 ""0-Length Headers Leak"" vulnerability. Completely blocks unaffected attacks: CVE-2019-9511 ""Data Dribble"", CVE-2019-9512 ""Ping Flood"", CVE-2019-9513 ""Resource Loop"", CVE-2019-9514 ""Reset Flood"", CVE-2019-9515 ""Settings Flood"", CVE-2019-9517 ""Internal Data Buffering"", and CVE-2019-9518 ""Empty Frames Flood"". [New Feature] Updated HTTP/3 support to Internet Draft 22. [New Feature] Smart server PUSH uses cookies to track pushed assets, avoiding pushing the same asset repeatedly. [Improvement] reCAPTCHA engine has been improved to reduce false positives. [Bug fix] Fixed a chunk encoding bug that could cause data corruption. [Bug Fix] Fixed a bug that could cause truncated response bodies to be transferred over non-keepalive HTTPS connections. This usually affects front-end CDN services. [Bug Fix] Fixed a regression that prevented Apache vhosts from using PHP daemon mode. [Bug Fix] Fixed a cache engine bug that failed to forward the `X-Litespeed-purge2` response header to front-end ADC cache engines. [Bug Fix] Fixed a bug that causes Python WSGI applications to fork child processes frequently.
Version 5.4
Build 3
[Bug Fix] Fixed a bug that could cause truncated response bodies to be transferred over non-keepalive HTTPS connections. This usually affects front-end CDN services.
Build 2
[New Feature] Updated HTTP/3 support to Internet Draft 22 . [New Feature] Smart server PUSH uses cookies to track pushed assets, avoiding pushing the same asset repeatedly. [Improvement] Re-enabled PHP graceful shutdown now that the PHP LiteSpeed SAPI 7.5 package is ready. [Improvement] Tuned reCAPTCHA verification to avoid requesting verification on image/css/js files. [Bug Fix] Minor bug fixes for 404 logging and some rare crashes.
Build 1
[Update] Updated cPanel/WHM plugins to v1.2.3.3 and v3.3.3.5 respectively. [Bug fix] Fixed a chunk encoding bug that could cause data corruption. [Bug fix] Fixed a bug with customized reCAPTCHA pages. [Bug fix] Fixed a QUIC engine bug that affected graceful restarts. [Bug fix] Fixed a BAN request method parsing bug.
Build 0
[Major Improvement] Massive HTTP/2 HTTPS performance boost (up to 5x faster than LSWS v5.3.x). [Major New Feature] Experimental HTTP/3 draft 20 support. [Major New Feature] Redis and rewrite based dynamic virtual hosting. [Major New Feature] Server level reCAPTCHA protection efficiently defends against layer-7 DDoS attacks of any size. [New Feature] Added support for Q046 in QUIC engine. [New Feature] HTTPS accelerator with direct dynamic TLS record packaging, improving both HTTPS throughput and TTFB without compromise. [New Feature] HTTPS handshake offloading, improving HTTPS handshake speed and avoiding clogging the server's main event loop. (No extra configuration required) [New Feature] SO_REUSEPORT support, improving multi-worker scalability for high traffic deployments. [New Feature] HTTPS certificate compression, reducing the size of HTTPS handshake exchange data. [Improvement] Improved HTTP/2 stream prioritization for a better user browsing experience.
RC4
[New Feature] Support for SO_REUSEPORT for multi-worker license. [New Feature] HTTPS/QUIC handshake offloading. [New Feature] TLSv1.3 certificate compression. [New Feature] High Availability for Redis dynamic vhost setup. [New Feature] Support for Google QUIC 046. [New Feature] Experimental IETF QUIC draft-20.
RC3
[Major New Feature] Dynamic Virtual Host configuration through REDIS backend. [Major Improvement] Greatly improved HTTP/2 performance -- up to 7x faster than previous implementations. [Bug fix] Improved QUIC engine performance and stability. [Bug fix] All bug fixes and enhancements on 5.3.x branch included.
RC2
[Major New Feature] Dynamic virtual hosting through rewrite rules. [Improvement] Improved HTTP/2 performance. [New Feature] QUIC proxy backend support for backend communication through QUIC. [Bug fix] All applicable bug fixes from the 5.3 branch. [Bug fix] Fixed a few server crash bugs.
RC1
[New Feature] Recaptcha verification for DDoS attack mitigation. [New Feature] Support for Ruby/Python/Nodejs applications in native configuration. [New Feature] Added Virtual Host level trusted IP control, managed through .htaccess. [Major Improvement] Added LiteSpeed TLS Accelerator, maximizing HTTPS & HTTP/2 performance. [Major Improvement] HTTP/2 performance has been improved with a better header compression/decompression work flow. [Bug fix] All bug fixes from LSWS 5.3.5 incremental builds included.
Version 5.3.8
Build 6
[Update] Updated cPanel/WHM plugins v1.2.3.2 and v3.3.3.4 respectively. [Bug fix] Temporarily stop PHP processes with SIGKILL as a workaround for problems caused by clean shutdown logic added to PHP LiteSpeed SAPI v7.4.3. [Bug fix] Added websocket proxy support for cPanel and webmail subdomains in addition to WHM subdomains. [Bug fix] Fixed a QUIC engine bug and made QUIC more DoS attack resistant.
Build 5
[Bug Fix] Updated WHM plugin to v3.3.3.2 to fix a bug introduced in the previous version that caused most plugin actions to result in a PHP fatal error. [Bug Fix] To avoid server crash, PCLMUL will be disabled in the zlib library if the server CPU does not support PCLMUL instructions.
Build 4
[New feature] Web Cache Manager CLI support for DirectAdmin. [Bug fix] Fixed websocket proxy from https to ws:// backend; made WHM terminal work properly through proxy. [Bug fix] Improved compatibility with Apache; "Require ip xxx" can bypass HTTP authentication. [Bug fix] Added support for "AddEncoding br ..." to avoid double compression. [Bug fix] Updated WebAdmin code to avoid some E_STRICT warnings. [Bug fix] Fixed server PUSH parsing problem when 'Link' header contains multiple URLs.
Build 3
[Bug fix] Fixed an ACL bug occurring when environment variables are used in Allow/Deny configurations. [Bug fix] Fixed a request parser bug which caused the server to crash when a partition holding a temp file is out of space. [Bug fix] Fixed a cache engine bug that caused requests to certain URLs to hang.
Build 2
[Bug fix] Fixed a regression in PHP daemon mode that causes 503 errors.
Build 1
[Bug fix] Fixed an IP2Location configuration bug that could cause the server to crash during startup. [Bug fix] Fixed a bug with nested ESI subrequests that caused random crashes.
Build 0
[Security] Added built-in filter to block attempts at hacking LiteMage with crafted ESI requests. [New Feature] lscmctl script can now be used to install/uninstall the LiteSpeed Web Cache Manager user-end plugin for cPanel. [New Feature] Recommend a plugin or broadcast a message to all discovered WordPress installations with the dash notify feature, available in both the lscmctl script and WHM plugin. [Improvement] Bundled WHM and user-end cPanel plugins have been updated to v3.3.1 and v1.2.0.2 respectively. [Improvement] Support request header sizes of up to 64K. [Improvement] Ignore <if> <else> <elseif> configuration contexts. [Improvement] Added support for Apache configuration directive ""Require ip ..."". [Improvement] Improved lsup.sh with stable release tier. [Improvement] Improved rc-inst.sh to install systemd unit file for Plesk + Debain/Ubuntu. [Improvement] Improved NodeJS application compatibility and mod_passenger configuration handling. [Improvement] Added autoconfig for PHP 7.4. [Improvement] Improved compatibility with LSAPI 7.3 . [Improvement] Improved HPACK encoding performance. [Improvement] Cache engine now updates ""X-LiteSpeed-Cache-Control max-age"" value based on actual expire time when a front-end lscache proxy exists. [Improvement] Improved compatibility with Apache mod_security on variables REQUEST_BODY, REQUEST_FILENAME and LAST_UPDATE_TIME. [Improvement] Fixed PHP handler compatibility issues with Plesk's updated configuration template. [Improvement] Improved WordPress brute force detection IP logging. [Bug fix] Fixed an Apache SSL vhost SNI configuration bug. [Bug fix] Fixed a QuicEngine bug that could cause broken responses. [Bug fix] Fixed a cache + ESI engine bug that caused random server crashes. [Bug fix] Fixed rewrite engine infinite loop when rewrite map file is stored in an NFS mount. [Bug fix] Improved detached mode process manager to accurately stop detached processes when requested. [Bug Fix] Added User-Agent and Referer headers to server pushed requests to avoid failing possible checks in a user's custom configuration. [Bug Fix] Fixed FreeBSD 100% cpu usage for kqueue event loops when AIO logging is enabled. [Bug Fix] Fixed an SSL OCSP stapling bug. [Bug Fix] Fixed broken server restart when port offset had been set. [Bug Fix] Fixed a memory leak in the GeoIP module.
Version 5.3.7
Build 8
[Bug Fix] Fixed a cache + ESI bug that could cause random crashes. [Bug Fix] Fixed a rewrite engine bug. [Bug Fix] Fixed a memory leak in the GeoIP module. [Bug Fix] Fixed a Plesk compatibility issue.
Build 7
[Improvement] Better WordPress brute force detection IP logging. [Improvement] Allow request header sizes greater than 32K. [Improvement] Added PID to error log messages for worker processes. [Bug fix] Fixed a Ruby selector regression introduced in v5.3.7 build 3. [Bug fix] Fixed an SSL OCSP stapling bug. [Bug Fix] Fixed broken server restart when port offset had been set.
Build 6
[New Feature] Added the ability to install/uninstall the LiteSpeed Web Cache Manager user-end plugin for cPanel using the lscmctl script. [Improvement] Fixed PHP handler compatibility issues with Plesk's updated configuration template. [Improvement] Improved LSAPI compatibility with LSAPI 7.3 . [Improvement] Improved HPACK encoding performance. [Improvement] Cache engine now updates X-LiteSpeed-Cache-Control max-age value based on actual expire time when a front-end lscache proxy exists. [Improvement] Natively configured detached PHP process groups are now gracefully restarted.
Build 5
[New Feature] Recommend a plugin or broadcast a message to all discovered WordPress installations with the dash notify feature available in the lscmctl script and WHM plugin. [Improvement] Ignore <if> <else> <elseif> configuration contexts. [Improvement] Added autoconfig for PHP 7.4. [Update] Updated WHM plugin to v3.3 and user-end cPanel plugin to v1.2. [Bug Fix] ESI engine bug fix. [Bug Fix] Fixed freeBSD 100% cpu usage for kqueue event loops. [Bug Fix] Fixed a detached mode process manager bug that accidentally killed other lshttpd worker processes.
Build 4
[Improvement] Improved lsup.sh with stable tier. [Improvement] Improved NodeJS application compatibility and mod_passenger configuration handling. [Bug Fix] Fixed a bug in detached mode process manager that failed to stop running processes under certain server environments. [Bug Fix] Added User-Agent and Referer headers to server pushed requests to avoid failing possible checks in a user's custom configuration. [Bug Fix] Implemented mod_security REQUEST_BODY as a dedicate variable.
Build 3
[Improvement] Improved rc-inst.sh to install systemd unit file for Plesk + Debain/Ubuntu. [Bug fix] Fixed an ESI engine memory management bug that caused random server crashes. [Bug fix] Fixed rewrite engine infinite loop when rewrite map file is stored in an NFS mount.
Build 2
[Bug Fix] Fixed a detached mode process manager bug introduced in build 1.
Build 1
[Security] Added built-in filter to block attempts to hack LitemMage with crafted ESI request. [Bug Fix] Fixed a detached mode process manager bug made killing other unrelated processes possible. [Bug Fix] Fixed an Apache SSL vhost SNI configuration bug. [Bug Fix] Fixed a QuicEngine bug that could cause broken responses.
Build 0
[Security] Fixed a XSS vulnerability in directory auto index script. [Improvement] Improved QUIC transport protocol performance and reliability. [Improvement] Improved default configuration for servers with heavy disk I/O wait. [Improvement] Made IP based SSL SNI configuration exactly match Apache's. [Improvement] Made .rtreport symbolic links root owned to avoid LFD file warnings. [Improvement] Improved ESI support for JSON responses. [Improvement] Improved lsup.sh script to check build number against latest build. [Update] Updated bundled WHM plugin to v3.2.0.3 and user-end cPanel plugin to v1.1.1.2 to address an integration issue with the recent LSCWP release. [Bug Fix] Fixed a file descriptor leak in piped logger. [Bug Fix] Fixed a bug that prevented changing the Cache-Control or Expire headers within PHP. [Bug Fix] Fixed inaccurate real-time statistics. [Bug Fix] Fixed a rewrite engine compatibility issue. [Bug Fix] Fixed a regression in "Redirect" directive handling. [Bug Fix] Fixed a QUIC engine bug when handling extra long response headers. [Bug Fix] Fixed a regression that broke the "SetHandler" directive. [Bug fix] Fixed a rewrite engine bug where target URLs containing "../" could cause problems. [Bug fix] Fixed an external loop redirect detection bug. [Bug Fix] Fixed a mod_security bug stopping response headers from being logged to the audit_log. [Bug Fix] Fixed a mod_security engine bug that was mistakenly skipping some rules for POST requests. [Bug Fix] Fixed an ESI engine bug that broke detection for looping includes, causing the server to run out of memory. [Bug Fix] Increased logging for detach mode process manager. A forced lock release will now occur if a dead lock is detected when starting detach mode processes. [Bug Fix] Fixed systemd unit file lshttpd.service by requiring network-online.target. [Bug Fix] Allow xx.xx.xx.xx/32 as valid IP in ACL configuration.
Version 5.3.6
Build 6
[Security] .rtreport no longer world readable. [Improvement] Improved QUIC transport protocol performance and reliability. [Improvement] Made IP based SSL SNI configuration exactly match Apache's. [Improvement] Made .rtreport symbolic links root owned to avoid LFD file warnings. [Bug Fix] Fixed inaccurate real-time statistics.
Build 5
[Update] Updated bundled WHM plugin to v3.2.0.3 and user-end cPanel plugin to v1.1.1.2. [Improvement] Improved lsup.sh script to check build number against latest build. [Bug Fix] Fixed systemd unit file lshttpd.service, by requiring network-online.target. [Bug Fix] Allow xx.xx.xx.xx/32 as valid IP in ACL configuration.
Build 4
[Update] Updated bundled WHM plugin to v3.2.0.2 and user-end cPanel plugin to v1.1.1.1 to address an integration issue with the recent LSCWP v2.9.3. [Bug Fix] Fixed a mod_security engine bug that was mistakenly skipping some rules for POST requests. [Bug Fix] Fixed an ESI engine bug that broke detection for looping includes, causing the server to run out of memory. [Bug Fix] Increased logging for detach mode process manager. A forced lock release will now occur if a dead lock is detected when starting detach mode processes.
Build 3
[Improvement] Improved ESI support for JSON responses. [Bug fix] Fixed rewrite engine bug where target URLs containing "../" could cause problems. [Bug fix] Fixed an external loop redirect detection bug. [Bug Fix] Fixed a mod_security bug stopping response headers from being logged to the audit_log.
Build 2
[Bug Fix] Fixed a regression that broke the "SetHandler" directive. [Bug Fix] OCSP cache directory now properly adjusted in chroot environments.
Build 1
[Improvement] Improved default configuration for servers with heavy disk I/O wait. [Bug Fix] Fixed a rewrite engine compatibility issue. [Bug Fix] Fixed a regression in "Redirect" directive handling. [Bug Fix] Fixed a QUIC engine bug when handling extra long response headers.
Build 0
[New Feature] lscmctl script can now be used to set custom server and virtual host cache roots with the 'setcacheroot' command. [Improvement] Added "ProxyPass"/"ProxyPassMatch" support for AJP backend. [Improvement] Added support for "IP:port" in "X-Forwarded-For" header. [Improvement] Reliably switch back to Apache in the case of a LiteSpeed licensing problem. [Improvement] Added back support for SecFilterEngine and SecFilterScanPOST directives for backward compatibility. [Update] Updated bundled WHM plugin to v3.2.0.1 and user-end cPanel plugin to v1.1.1. [Bug Fix] Fixed AddHandler directive behavior to be the same as AddType. [Bug Fix] Fixed an OCSP stapling bug that caused Mozilla connection issues. [Bug Fix] Stopped PHP from logging errors into the error log when stderr.log was disabled. [Bug Fix] Fixed a SecRemoteRule handling bug. [Bug Fix] Fixed a bug causing detached PHP processes to be stopped during graceful restarts, which may cause random 503 errors. [Bug Fix] Fixed a bug in processing GeoIP2 mmdb database. [Bug Fix] Fixed a bug introduced in v5.3.5 build 5 that broke cPanel/WHM's "redirect to closest matched domain" feature. [Bug Fix] Fixed cPanel two factor authentication. [Bug Fixes] Minor bug fixes involving Apache compatibility issues.
Version 5.3.5
Build 9
[Bug Fix] Fixed a bug causing detached PHP processes to be stopped during graceful restarts.
Build 8
[Bug Fix] Fixed an OCSP response verification bug (introduced in the previous build) that caused crashing. [Bugfix] Fixed a bug in processing GeoIP2 mmdb database. [Bugfix] Fixed a bug introduced in 5.3.5 build 5 that breaks cPanel/WHM redirect to closest matched domain feature.
Build 7
[Enhancement] Added extra validation on OCSP response to avoid outdated response for newly renewed certificate. [Integration] Made LSWS compatible with Apache configuration generated by cPanel v78. [Bug Fix] Fixed AddHandler directive behavior to be the same as AddType.
Build 6
[New Feature] Added "ProxyPass"/"ProxyPassMatch" support for AJP backend. [New Feature] Added support for "IP:port" in "X-Forwarded-For" header. [Improvement] Detached PHP processes are now detected and restarted more reliably. [Bug Fix] Applied a SecRemoteRules fix to avoid rule file corruption. [Bug Fix] Fixed a bug that could cause a blank response body for pre-compressed content.
Build 5
[Update] Updated default welcome page content. [Bug Fix] Fixed a SecRemoteRule handling bug. [Bug Fix] Fixed a bug causing detached mode PHP processes to log PHP stderr messages to the server's error log file. [Bug Fix] Fixed an awstats integration bug that broke dynamic page generation mode. [Bug Fix] Fixed an infinite loop bug that occurred with badly configured contexts.
Build 4
[Improvement] Reliably switch back to Apache when there is a LiteSpeed licensing problem. [Improvement] Added back support for SecFilterEngine and SecFilterScanPOST directives for backward compatibility. [Bug Fix] Stopped PHP error logging into error log when stderr.log is disabled.
Build 3
[Bug Fix] Fixed a bug that causes excessive requests to OSCP responder. [Bug Fix] Fixed a bug that failed to handle some types of Node.js selector configurations. [Bug Fix] Fixed a bug that failed cPanel two factor authentication. [Bug Fix] Fixed a bug in LiteMage combined subrequest handling.
Build 0
[Improvement] Improvements to HTTP/2, QUIC, and rewrite engine. [Bug Fix] HTTP/2, QUIC, and rewrite engine bug fixes. [Bug Fix] Fixed mod_security engine not handling skipAfter properly in the `SecAction` directive. [Bug Fix] Fixed server failing to automatically fix cache directory permission problems.
Version 5.3.4
Build 8
[Bug Fix] Fixed a rewrite engine bug introduced in 5.3.4 build 7, which could cause ERR_SPDY_PROTOCOL_ERROR and redirect problems.
Build 7
[Improvement] Improved mod_rewrite compatibility. [Improvement] Improved QUIC engine by dynamically adjust batch size of outgoing packets.
Build 5
[Improvement] Improved PHP process abort feature to occur in a more timely manner. [Bug Fix] Fixed an HTTP/2 engine bug that caused connections to reset under certain situations.
Build 4
[Improvement] Improved mod_security engine with UNIQUE_ID support. [Update] Disabled 503 auto fix by default. [Bug Fix] Fixed an SSL OCSP stapling bug. [Bug Fix] Fixed memory and resource leaks. [Bug Fix] Fixed incompatible behavior with Python selector support. [Bug Fix] Fixed a license information display bug in WebAdmin Console.
Build 2
[Improvement] Improved compatibility for WebCache manager. [Bug Fix] This build include a fix for gQUIC v044 support
Build 1
[Improvement] Improved NODEJS support. [Improvement] Detect curl + HTTP/2 combination and disable HTTP/2 for future access. [Update] Updated WHM plugin to v3.1.3.2 to address a compatibility issue with newer versions of the LSCWP plugin. [Update] Updated cPanel user-end plugin to v1.0.2.1 to address a compatibility issue with newer versions of the LSCWP plugin.
Build 0
[MAJOR NEW FEATURE] Added support for Google QUIC v44. [NEW FEATURE] Improved Ruby/Python selector support and apply engine version changes on the fly. [NEW FEATURE] Allow overriding external application environment at vhost level. [NEW FEATURE] Log HTTP/2 in access log for HTTP/2 connection. [NEW FEATURE] Auto detect and use cPanel signed certificate for WebAdmin. [NEW FEATURE] Auto correct bad HTTPS proxy backend configured as HTTP. [IMPROVEMENT] Improved compatibility with ColdFusion engine. [UPDATE] Updated bundled WHM plugin to v3.1.3.1 [UPDATE] Updated bundled cPanel user-end plugin to v1.0.2. [BUGFIX] Fixed mod_security engine compatibility issue with latest COMODO ruleset. [BUGFIX] Added "Accept-Range: bytes" header back for static files. [BUGFIX] Fixed bug in rewrite engine loop redirection detection.
Version 5.3.3
Build 3
[Bug Fix] Fixed a mod_security engine bug that caused incorrect behavior with the comodo ruleset.
Build 2
[Bug Fix] Made adjustments to PHP handler configuration to fix broken PHP selector. [Bug Fix] Fixed a memory leak in HTTP/2. [Bug Fix] Fixed a crash when parsing Apache configuration.
Build 0
[Bug Fix] Emergency release to ignore faulty rewrite rule introduced by cPanel