Changes with nginx 0.5.10                                        26 Jan 2007
     *) Bugfix: while online executable file upgrade the new master process
        did not inherit the listening sockets; bug appeared in 0.5.9.
     *) Bugfix: a segmentation fault might occur in worker process if nginx
        was built with -O2 optimization; bug appeared in 0.5.1.
Igor Sysoev
http://sysoev.ru/en/