diff --git a/Release-Notes.md b/Release-Notes.md
index 6165208..baef49e 100644
--- a/Release-Notes.md
+++ b/Release-Notes.md
@@ -13,6 +13,8 @@
 
 _Thank for help to - [h5p9sl](https://github.com/h5p9sl)_
 
+**Important. If If you used the `Associate with *.cnp files` after this update you need to re-enable this function.**
+
 ***
 
 ### v1.2.0 (2018-12-08)