Release Notes: Many bugs were fixed, including http-pretend-keepalive, stuck sessions, balanced url_param with POST requests, incorrect chunk size computations on buffer boundaries, incorrectly set rlimits, incorrect removal of the last header, handling of empty pattern files, and 4GB+ content-length on 32-bit machines. A few improvements were made in the CLI, new ACLs were added, and the efficiency of chunked encoded transfers was improved. All 1.4 users are strongly encouraged to upgrade.
Release Notes: Very minor issues were fixed, among which are a timeout which only struck on the second expiration. Support for HTTP 1xx informational messages was added. It is now possible to report the node name on the stats page. Some new ACLs were backported from 1.4 in order to match on IP addresses in headers and on queue length.