CHANGELOG.md in lbfgsb-0.4.0 vs CHANGELOG.md in lbfgsb-0.4.1

@@ -1,4 +1,7 @@
+## 0.4.1
+- Remove dependent gem's type declaration file from installation files.
+
 ## 0.4.0
 - Add type declaration file: sig/lbfgsb.rbs
 
 ## 0.3.2
 - Refactor native extension codes.