diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f87356..1609e74 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- `add-master-log` now always create CSV file
+- `convert-master-log` can still append to a CSV file
+
 ## [2.0.1]
 
 ### Fix