Nginx 发布最新稳定版 1.2.8 ，下载地址：
*) Bugfix: new sessions were not always stored if the "ssl_session_cache
shared" directive was used and there was no free space in shared
Thanks to Piotr Sikora.
*) Bugfix: responses might hang if subrequests were used and a DNS error
happened during subrequest processing.
Thanks to Lanshun Zhou.
*) Bugfix: in the ngx_http_mp4_module.
Thanks to Gernot Vormayr.
*) Bugfix: in backend usage accounting.