diff --git a/src/Symfony/Component/Dotenv/CHANGELOG.md b/src/Symfony/Component/Dotenv/CHANGELOG.md
index 2204282c26..f04cc1bdf7 100644
--- a/src/Symfony/Component/Dotenv/CHANGELOG.md
+++ b/src/Symfony/Component/Dotenv/CHANGELOG.md
@@ -4,4 +4,5 @@ CHANGELOG
 3.3.0
 -----
 
+ * [BC BREAK] Since v3.3.7, the latest Dotenv files override the previous ones. Real env vars are not affected and are not overridden.
  * added the component