Changes with nginx 0.3.26                                        03 Feb 2006
     *) Change: the "optimize_host_names" directive was renamed to the
        "optimize_server_names".
     *) Bugfix: if in the "proxy_pass" directive was no the URI part, then
        the main request URI was transferred to a backend while proxying the
        SSI subrequest.
Igor Sysoev
http://sysoev.ru/en/