Release Notes: Many changes were made, most of them bugfixes. Server-side IPv6 and server-side PROXY protocol support was added. All other changes are internal architecture changes needed to support server-side keep-alive later. Users of other 1.5 development versions are encouraged to upgrade, with the usual care needed for a development version.
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: A number of annoying and important issues were fixed. Important fixes include a risk of crashing on very recent versions of FreeBSD, a very rare case of stuck client sessions when using keep-alive, a url_param hash bug which could result in a dead server in very rare situations, status codes 501 and 505 which could cause a server to be marked down if on-error was used, a risk of getting truncated HTTP responses when chunk-encoding was used, and an issue with anonymous ACLs. A few improvements were made to health checks. Upgrading is strongly recommended for 1.4 users.