LiteSpeed Web Server Changelog

[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.

[Major New Feature] Dynamic virtual hosting through rewrite rules.
[Improvement] Improved HTTP/2 performance.
[Bug Fix] All applicable bug fixes from the 5.3 branch.
[Bug Fix] Fixed a few server crash bugs.

[Bug Fix] Fixed a bug causing the default error page to hang on some HTTP/2 connections.
[Bug Fix] Fixed a bug that causing some HTTPS connections to hang.
[Bug Fix] Fixed an infinite recursion bug that caused a stack overflow when triggered.

[Bug fix] QUIC Transport fix

[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.

[Bug Fix] Fixed a detached mode process manager bug introduced in 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.

[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.

[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.

[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.

[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.

[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.

[Bug Fix] Fixed a regression that broke the "SetHandler" directive.
[Bug Fix] OCSP cache directory now properly adjusted in chroot environments.

[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.

[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.

[Bug Fix] Fixed a bug causing detached PHP processes to be stopped during graceful restarts.

[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.

[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.

[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.

[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.

[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.

[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.

[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.

[Bug Fix] Fixed a rewrite engine bug introduced in 5.3.4 build 7, which could cause ERR_SPDY_PROTOCOL_ERROR and redirect problems.

[Improvement] Improved mod_rewrite compatibility.
[Improvement] Improved QUIC engine by dynamically adjust batch size of outgoing packets.

[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.

[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.

[Improvement] Improved compatibility for WebCache manager.
[Bug Fix] This build include a fix for gQUIC v044 support

[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.

[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.