*) Change: the "valid_referers" directive and the "$invalid_referer"
       variable were moved to the new ngx_http_referer_module from the
       ngx_http_rewrite_module.

    *) Change: the "$apache_bytes_sent" variable name was changed to
       "$body_bytes_sent".

    *) Feature: the "$sent_http_..." variables.

    *) Feature: the "if" directive supports the "=" and "!=" operations.

    *) Feature: the "proxy_pass" directive supports the HTTPS protocol.

    *) Feature: the "proxy_set_body" directive.

    *) Feature: the "post_action" directive.

    *) Feature: the ngx_http_empty_gif_module.

    *) Feature: the "worker_cpu_affinity" directive for Linux.

    *) Bugfix: the "rewrite" directive did not unescape URI part in
       redirect, now it is unescaped except the %00-%25 and %7F-%FF
       characters.

    *) Bugfix: nginx could not be built by the icc 9.0 compiler.

    *) Bugfix: if the SSI was enabled for zero size static file, then the
       chunked response was encoded incorrectly.

    *) Bugfix: nginx considered URI as unsafe if two any symbols was
       between two slashes; the bug had appeared in 0.3.8.

    *) Security: nginx now checks URI got from a backend in
       "X-Accel-Redirect" header line or in SSI file for the "/../" paths
       and zeroes.

    *) Change: nginx now does not treat the empty user name in the
       "Authorization" header line as valid one.

    *) Feature: the "ssl_session_timeout" directives of the
       ngx_http_ssl_module and ngx_imap_ssl_module.

    *) Feature: the "auth_http_header" directive of the
       ngx_imap_auth_http_module.

    *) Feature: the "add_header" directive.

    *) Feature: the ngx_http_realip_module.

    *) Feature: the new variables to use in the "log_format" directive:
       $bytes_sent, $apache_bytes_sent, $status, $time_gmt, $uri,
       $request_time, $request_length, $upstream_status,
       $upstream_response_time, $gzip_ratio, $uid_got, $uid_set,
       $connection, $pipe, and $msec. The parameters in the "%name" form
       will be canceled soon.

    *) Change: now the false variable values in the "if" directive are the
       empty string "" and string starting with "0".

    *) Bugfix: while using proxied or FastCGI-server nginx may leave
       connections and temporary files with client requests in open state.

    *) Bugfix: the worker processes did not flush the buffered logs on
       graceful exit.

    *) Bugfix: if the request URI was changes by the "rewrite" directive
       and the request was proxied in location given by regular expression,
       then the incorrect request was transferred to backend; the bug had
       appeared in 0.2.6.

    *) Bugfix: the "expires" directive did not remove the previous
       "Expires" header.

    *) Bugfix: nginx may stop to accept requests if the "rtsig" method and
       several worker processes were used.

    *) Bugfix: the "\"" and "\'" escape symbols were incorrectly handled in
       SSI commands.

    *) Bugfix: if the response was ended just after the SSI command and
       gzipping was used, then the response did not transferred complete or
       did not transferred at all.

    *) Feature: the "access_log" supports the "buffer=" parameter.

    *) Bugfix: nginx could not be built on platforms different from i386,
       amd64, sparc, and ppc; the bug had appeared in 0.3.2.

    *) Change: now the IMAP/POP3 proxy do not send the empty login to
       authorization server.

    *) Feature: the "log_format" supports the variables in the $name form.

    *) Bugfix: if at least in one server was no the "listen" directive,
       then nginx did not listen on the 80 port; the bug had appeared in
       0.3.3.

    *) Bugfix: if the URI part is omitted in "proxy_pass" directive, the
       the 80 port was always used.