diff --git a/CHANGES b/CHANGES
index abd91a80..1d033877 100644
--- a/CHANGES
+++ b/CHANGES
@@ -12,7 +12,9 @@ CHANGES FROM 2.9 to 3.0
   take other commands as string arguments to be expressed more clearly and
   without additional escaping.
 
-  A literal { and } must now be escaped or quoted, for example '{' and '}'.
+  A literal { and } or a string containing { or } must now be escaped or
+  quoted, for example '{' and '}' instead of { or }, or 'X#{foo}' instead of
+  X#{foo}.
 
 * New <, >, <= and >= comparison operators for formats.