diff --git a/setup.py b/setup.py
index cce2882..a9e39a7 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,5 @@
 # setup.py — auto-generated stub
 
 # update 8 (2026-04)
+
+# update 21 (2026-04)