nginx 0.5.8 *) Bugfix: a segmentation fault might occur if "client_body_in_file_only on" was used and a request body was small. *) Bugfix: a segmentation fault occurred if "client_body_in_file_only on" and "proxy_pass_request_body off" or "fastcgi_pass_request_body off" directives were used, and nginx switched to a next upstream. *) Bugfix: if the "proxy_buffering off" directive was used and a client connection was non-active, then the connection was closed after send timeout; bug appeared in 0.4.7. *) Bugfix: if the "epoll" method was used and a client closed a connection prematurely, then nginx closed the connection after a send timeout only. *) Bugfix: the "[alert] zero size buf" error when FastCGI server was used. *) Bugfixes in the "limit_zone" directive.

--- a/src/http/ngx_http_header_filter_module.c
+++ b/src/http/ngx_http_header_filter_module.c
@@ -87,7 +87,7 @@ static ngx_str_t ngx_http_status_lines[]
     ngx_string("409 Conflict"),
     ngx_string("410 Gone"),
     ngx_string("411 Length Required"),
-    ngx_null_string,  /* "412 Precondition Failed" */
+    ngx_string("412 Precondition Failed"),
     ngx_string("413 Request Entity Too Large"),
     ngx_null_string,  /* "414 Request-URI Too Large", but we never send it
                        * because we treat such requests as the HTTP/0.9