Nginx 1.1.12 开发版发布了，该版本主要引入了缓存锁和 PCRE JIT 的支持。nginx（发音同engine x）是一款由俄罗斯程序员Igor Sysoev所开发轻量级的网页服务器、反向代理服务器以及电子邮件 （IMAP/POP3）代理服务器。起初是供俄国大型的门户网站及搜索引擎Rambler（俄语：Рамблер）使用。此软件BSD-like协议下发 行，可以在UNIX、GNU/Linux、BSD、Mac OS X、Solaris，以及Microsoft Windows等操作系统中运行。本次更新详细内容包括：

Changes with nginx 1.1.12                                        26 Dec 2011

    *) Change: a "proxy_pass" directive without URI part now uses changed URI after redirection with the "error_page" directive;
    *) Feature: the "proxy/fastcgi/scgi/uwsgi_cache_lock", "proxy/fastcgi/scgi/uwsgi_cache_lock_timeout" directives.
    *) Feature: the "pcre_jit" directive.
    *) Feature: the "if" SSI command supports captures in regular expressions.
    *) Bugfix: the "if" SSI command did not work inside the "block" command.
    *) Bugfix: the "limit_conn_log_level" and "limit_req_log_level" directives might not work.
    *) Bugfix: the "limit_rate" directive did not allow to use full throughput, even if limit value was very high.
    *) Bugfix: the "sendfile_max_chunk" directive did not work, if the "limit_rate" directive was used.
    *) Bugfix: a "proxy_pass" directive without URI part always used original request URI if variables were used.
    *) Bugfix: a "proxy_pass" directive without URI part might use original request after redirection with the "try_files" directive;
    *) Bugfix: in the ngx_http_scgi_module.
    *) Bugfix: in the ngx_http_mp4_module.
    *) Bugfix: nginx could not be built on Solaris; the bug had appeared in 1.1.9.

下载地址：nginx-1.1.12 nginx/Windows-1.1.12