diff --git a/src/transforms/feature.py b/src/transforms/feature.py
index 4e7bd35..8b058af 100644
--- a/src/transforms/feature.py
+++ b/src/transforms/feature.py
@@ -1,3 +1,5 @@
 # src/transforms/feature.py — auto-generated stub
 
 # update 3 (2026-04)
+
+# update 16 (2026-04)