diff --git a/battybirdnet-pi/CHANGELOG.md b/battybirdnet-pi/CHANGELOG.md
index d38eefa73..55eecd524 100644
--- a/battybirdnet-pi/CHANGELOG.md
+++ b/battybirdnet-pi/CHANGELOG.md
@@ -1,3 +1,5 @@
+- Major refactor : based now on BirdNET-Pi. Please backup before update
+
 ## 2025.04.11 (19-04-2025)
 - Minor bugs fixed
 ## 2025.04.10 (14-04-2025)