diff --git a/CHANGES.txt b/CHANGES.txt
index 47eced7..d567f74 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,7 @@
+v3.6.109
+- Added -I, --ihm option to update IronWolf Health Monitor to 2.5.1 to support recent model IronWolf and IronWolf Pro drives.
+  - For NAS with x86_64 CPUs only.
+
 v3.5.108
 - Prevent error message if /tmpRoot exists but does not contain /usr/syno/bin/synosetkeyvalue and /etc.defaults/synoinfo.conf. Issue #411