diff --git a/Changes b/Changes
index 470ead6..031ab69 100755
--- a/Changes
+++ b/Changes
@@ -1,6 +1,7 @@
 0.40 2020-10-09
         - Modernize ES and fix in-loops.
         - add roll() method to state object.
+        - Fix wrong hint-mirror behaviour in Firefox.
 
 0.39 2020-10-07
         - Add information on secret file to Readme.