nginx 0.3.46 *) Feature: the "proxy_hide_header", "proxy_pass_header", "fastcgi_hide_header", and "fastcgi_pass_header" directives. *) Change: the "proxy_pass_x_powered_by", "fastcgi_x_powered_by", and "proxy_pass_server" directives were canceled. *) Feature: the "X-Accel-Buffering" response header line is supported in proxy mode. *) Bugfix: the reconfiguration bug and memory leaks in the ngx_http_perl_module.

--- a/src/core/ngx_string.h
+++ b/src/core/ngx_string.h
@@ -13,11 +13,17 @@
 
 
 typedef struct {
-    size_t    len;
-    u_char   *data;
+    size_t     len;
+    u_char    *data;
 } ngx_str_t;
 
 
+typedef struct {
+    ngx_str_t  key;
+    ngx_str_t  value;
+} ngx_keyval_t;
+
+
 #define ngx_string(str)  { sizeof(str) - 1, (u_char *) str }
 #define ngx_null_string  { 0, NULL }