*) Feature: the ngx_http_upstream_keepalive module.
*) Feature: the "proxy_http_version" directive.
*) Feature: the "fastcgi_keep_conn" directive.
*) Feature: the "worker_aio_requests" directive.
*) Bugfix: if nginx was built --with-file-aio it could not be run on Linux kernel which did not support AIO.
*) Bugfix: in Linux AIO error processing.
*) Bugfix: reduced memory consumption for long-lived requests.
*) Bugfix: the module ngx_http_mp4_module did not support 64-bit MP4 "co64" atom.
Nginx 1.1.4 开发版发布
Nginx 1.1.4 开发版改进内容：
下载地址：nginx-1.1.4 ，nginx/Windows-1.1.4