Changes with nginx 1.3.12 05 Feb 2013

    *) Feature: variables support in the "proxy_bind", "fastcgi_bind",
       "memcached_bind", "scgi_bind", and "uwsgi_bind" directives.

    *) Feature: the $pipe, $request_length, $time_iso8601, and $time_local
       variables can now be used not only in the "log_format" directive.
       Thanks to Kiril Kalchev.

    *) Feature: IPv6 support in the ngx_http_geoip_module.
       Thanks to Gregor Kališnik.

    *) Bugfix: in the "proxy_method" directive.

    *) Bugfix: a segmentation fault might occur in a worker process if
       resolver was used with the poll method.

    *) Bugfix: nginx might hog CPU during SSL handshake with a backend if
       the select, poll, or /dev/poll methods were used.

    *) Bugfix: the "[crit] SSL_write() failed (SSL:)" error.

    *) Bugfix: in the "client_body_in_file_only" directive; the bug had
       appeared in 1.3.9.

    *) Bugfix: in the "fastcgi_keep_conn" directive.