diff --git a/CHANGELOG.md b/CHANGELOG.md
index 221646b..db97fbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [0.5.2] - 2024-01-25
 - add experimental error handling
+- add **int lastError()** so user can check the status of last I2C actions.
 - update examples
 - minor edits