*) Feature: now is possible to do several redirection using the
       "error_page" directive.

    *) Bugfix: the "dav_access" directive did not support three parameters.

    *) Bugfix: the "error_page" directive did not changes the
       "Content-Type" header line after the "X-Accel-Redirect" was used;
       the bug had appeared in 0.3.58.

    *) Feature: the "error_page" directive supports the variables.

    *) Change: now the procfs interface instead of sysctl is used on Linux.

    *) Change: now the "Content-Type" header line is inherited from first
       response when the "X-Accel-Redirect" was used.

    *) Bugfix: the "error_page" directive did not redirect the 413 error.

    *) Bugfix: the trailing "?" did not remove old arguments if no new
       arguments were added to a rewritten URI.

    *) Bugfix: nginx could not run on 64-bit FreeBSD 7.0-CURRENT.

    *) Feature: the $ssl_client_serial variable.

    *) Bugfix: in the "!-e" operator of the "if" directive.
       Thanks to Andrian Budanstov.

    *) Bugfix: while a client certificate verification nginx did not send
       to a client the required certificates information.

    *) Bugfix: the $document_root variable did not support the variables in
       the "root" directive.

    *) Feature: the "dav_access" directive.

    *) Feature: the "if" directive supports the "-d", "!-d", "-e", "!-e",
       "-x", and "!-x" operators.

    *) Bugfix: a segmentation fault occurred if a request returned a
       redirect and some sent to client header lines were logged in the
       access log.

    *) Feature: the "stub" parameter in the "include" SSI command.

    *) Feature: the "block" SSI command.

    *) Feature: the unicode2nginx script was added to contrib.

    *) Bugfix: if a "root" was specified by variable only, then the root
       was relative to a server prefix.

    *) Bugfix: if the request contained "//" or "/./" and escaped symbols
       after them, then the proxied request was sent unescaped.

    *) Bugfix: the $r->headers_in("Cookie") of the ngx_http_perl_module now
       returns all "Cookie" header lines.

    *) Bugfix: a segmentation fault occurred if
       "client_body_in_file_only on" was used and nginx switched to a next
       upstream.

    *) Bugfix: on some condition while reconfiguration character codes
       inside the "charset_map" may be treated invalid; the bug had
       appeared in 0.3.50.