Release Notes: This release adds multi-threaded support for AIX. It also contains several minor bug fixes.
Release Notes: This release adds support for HTTP keep-alive directives. It also includes minor corrections to fix problems with cookie handling and socket IO under certain conditions.
Release Notes: This release adds an improved connection timeout mechanism.
Release Notes: Minor performance enhancements were added. A problem with scout and virtual hosts was fixed.
Release Notes: Time-based testing was added. This new feature is an enhancement to the existing options, not a replacement for any single option.