下载地址： nginx-0.8.40 ，nginx/Windows-0.8.40

Nginx 0.8.40 改进内容：

*) Security: now nginx/Windows ignores default file stream name.
*) Feature: the ngx_http_uwsgi_module.
*) Feature: a "fastcgi_param" directive with value starting with "HTTP_" overrides a client request header line.
*) Bugfix: the "If-Modified-Since", "If-Range", etc. client request header lines were passed to FastCGI-server while caching.
*) Bugfix: listen unix domain socket could not be changed during reconfiguration.

Nginx 0.7.66 改进内容（nginx-0.7.66  nginx/Windows-0.7.66）：

*) Security: now nginx/Windows ignores default file stream name.
*) Change: now the charset filter runs before the SSI filter.
*) Change: now no message is written in an error log if a variable is not found by $r->variable() method.
*) Change: now keepalive connections after POST requests are not disabled for MSIE 7.0+.
*) Feature: the "proxy_no_cache" and "fastcgi_no_cache" directives.
*) Feature: now the "rewrite" directive does a redirect automatically if the $scheme variable is used.
*) Feature: the "chunked_transfer_encoding" directive.
*) Feature: the $geoip_city_continent_code, $geoip_latitude, and $geoip_longitude variables.
*) Feature: now the ngx_http_image_filter_module deletes always EXIF and other application specific data if the data consume more than 5% of a JPEG file.
*) Feature: now the "msie_padding" directive works for Chrome too.
*) Workaround: now keepalive connections are disabled for Safari.
*) Bugfix: nginx ignored the "private" and "no-store" values in the "Cache-Control" backend response header line.
*) Bugfix: an "&" character was not escaped when it was copied in arguments part in a rewrite rule.
*) Bugfix: nginx might be terminated abnormally while a signal processing or if the directive "timer_resolution" was used on platforms which do not support kqueue or eventport notification methods.
*) Bugfix: if temporary files and permanent storage area resided at different file systems, then permanent file modification times were incorrect.
*) Bugfix: ngx_http_memcached_module might issue the error message "memcached sent invalid trailer".
*) Bugfix: nginx could not built zlib-1.2.4 library using the library sources.
*) Bugfix: values of the $query_string, $arg_..., etc. variables cached in main request were used by the SSI module in subrequests.
*) Bugfix: nginx did not support HTTPS referrers.
*) Bugfix: nginx/Windows might not find file if path in configuration was given in other character case; the bug had appeared in 0.7.65.
*) Bugfix: the $date_local variable has an incorrect value, if the "%s" format was used.
*) Bugfix: nginx did not support all ciphers and digests used in client certificates.
*) Bugfix: if ssl_session_cache was not set or was set to "none", then during client certificate verify the error "session id context uninitialized" might occur; the bug had appeared in 0.7.1.
*) Bugfix: OpenSSL-1.0.0 compatibility on 64-bit Linux.
*) Bugfix: a geo range returned default value if the range included two or more /16 networks and did not begin at /16 network boundary.
*) Bugfix: the $uid_got variable might not be used in the SSI and perl modules.
*) Bugfix: a worker process hung if a FIFO file was requested.
*) Bugfix: a variable value was repeatedly encoded after each an "echo" SSI-command output; the bug had appeared in 0.6.14.
*) Bugfix: a "stub" parameter of an "include" SSI directive was not used, if empty response has 200 status code.
*) Bugfix: a block used in a "stub" parameter of an "include" SSI directive was output with "text/plain" MIME type.
*) Bugfix: if a proxied or FastCGI request was internally redirected to another proxied or FastCGI location, then a segmentation fault might occur in a worker process; the bug had appeared in 0.7.65.
*) Bugfix: IMAP connections may hang until they timed out while talking to Zimbra server.
*) Bugfix: nginx did not support chunked transfer encoding for 201 responses.