Added a method to add warnings in QuerySerializer

Change-Id: Icce3d766461454c985b79cb03be08050a48a4765
diff --git a/Changes b/Changes
index de6a342..d99749f 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,5 @@
-0.35 2019-09-25
+0.35 2019-11-12
+    - Added a method to add warnings in QuerySerializer (margaretha)
 
 0.34 2019-08-27
     - [bugfix] Ignore min:max order in distance operators