CHANGELOG.md in node_mutation-1.21.3 vs CHANGELOG.md in node_mutation-1.21.4

@@ -1,6 +1,10 @@
 # NodeMutation
 
+## 1.21.4 (2023-10-28)
+
+* Update `Adapter` rbs
+
 ## 1.21.3 (2023-10-03)
 
 * Call `Action#to_struct` explicitly
 
 ## 1.21.2 (2023-10-02)