nginx 0.6.34 *) Change: now the EAGAIN error returned by connect() is not considered as temporary error. *) Change: now the "gzip_vary" directive turned on issues a "Vary: Accept-Encoding" header line for uncompressed responses too. *) Feature: the "expires" directive supports daily time. *) Feature: the "Expect" request header line support. *) Feature: now the "rewrite" directive does a redirect automatically if the "https://" protocol is used. *) Bugfix: the "listen" directive parameters such as "backlog", "rcvbuf", etc. were not set, if a default server was not the first one. *) Bugfix: the "log_not_found" directive did not work for index files tests. *) Bugfix: now if FastCGI server sends a "Location" header line without status line, then nginx uses 302 status code. Thanks to Maxim Dounin. *) Bugfix: the ngx_http_flv_module did not support several values in a query string. *) Bugfix: when a request to a directory was redirected with the slash added, nginx dropped a query string from the original request.

--- a/src/http/ngx_http_header_filter_module.c
+++ b/src/http/ngx_http_header_filter_module.c
@@ -347,6 +347,12 @@ ngx_http_header_filter(ngx_http_request_
         len += sizeof("Connection: closed" CRLF) - 1;
     }
 
+#if (NGX_HTTP_GZIP)
+    if (r->gzip && clcf->gzip_vary) {
+        len += sizeof("Vary: Accept-Encoding" CRLF) - 1;
+    }
+#endif
+
     part = &r->headers_out.headers.part;
     header = part->elts;
 
@@ -516,6 +522,13 @@ ngx_http_header_filter(ngx_http_request_
                              sizeof("Connection: close" CRLF) - 1);
     }
 
+#if (NGX_HTTP_GZIP)
+    if (r->gzip && clcf->gzip_vary) {
+        b->last = ngx_cpymem(b->last, "Vary: Accept-Encoding" CRLF,
+                             sizeof("Vary: Accept-Encoding" CRLF) - 1);
+    }
+#endif
+
     part = &r->headers_out.headers.part;
     header = part->elts;