Changes with nginx 1.3.8 30 Oct 2012 *) Feature: the "optional_no_ca" parameter of the "ssl_verify_client" directive. Thanks to Mike Kazantsev and Eric O'Connor. *) Feature: the $bytes_sent, $connection, and $connection_requests variables can now be used not only in the "log_format" directive. Thanks to Benjamin Gr?ssing. *) Feature: the "auto" parameter of the "worker_processes" directive. *) Bugfix: "cache file ... has md5 collision" alert. *) Bugfix: in the ngx_http_gunzip_filter_module. *) Bugfix: in the "ssl_stapling" directive. -- Maxim Dounin http://nginx.com/support.html