diff --git a/README b/README
index 309c91ada0..c0c8efb213 100644
--- a/README
+++ b/README
@@ -91,6 +91,7 @@ BIND 9.10.0
          - "rndc zonestatus" reports information about a specified zone.
          - "named" now listens on IPv6 as well as IPv4 interfaces
            by default.
+	 - use case sensitive compression when responding.
 
 BIND 9.9.0