diff --git a/CHANGES b/CHANGES
index 2644d2c..1607a14 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,7 @@
 ??.??.20??: Rhialto
         version 0.7:
+        - Left-shift operator _; disabled when the -yus option is used.
+          Contributed by Stephen Casner.
 
 13.02.2021: Rhialto
         version 0.6: