Nginx 1.5.x 是现在 Nginx 的主线版本，最新版本 1.5.1 刚刚发布，下载地址：
http://nginx.org/download/nginx-1.5.1.tar.gz
改进内容包括：
*) 新增指令 "ssi_last_modified", "sub_filter_last_modified", and "xslt_last_modified"
Thanks to Alexey Kolpakov.
*) "proxy_next_upstream", "fastcgi_next_upstream", "scgi_next_upstream", and "uwsgi_next_upstream" 指令增加 "http_403" 参数
*) allow 和 deny 指令支持 unix domain 套接字
*) 修复了 1.3.14 版本中在无 ngx_http_ssl_module 的情况下无法使用 ngx_mail_ssl_module 模块构建的问题
*) 修复了 proxy_set_body 指令的 bug
Thanks to Lanshun Zhou.
*) 修复了 lingering_time 指令的 bug
Thanks to Lanshun Zhou.
*) Bugfix: the "fail_timeout" parameter of the "server" directive in the "upstream" context might not work if "max_fails" parameter was used; the bug had appeared in 1.3.0.
*) Bugfix: a segmentation fault might occur in a worker process if the "ssl_stapling" directive was used.
Thanks to Piotr Sikora.
*) Bugfix: in the mail proxy server.
Thanks to Filipe Da Silva.
*) Bugfix: nginx/Windows might stop accepting connections if several worker processes were used.
来自:开源中国社区
