diff --git a/etc/psa_update/opkg_commands b/etc/psa_update/opkg_commands
index b582842..103b34e 100755
--- a/etc/psa_update/opkg_commands
+++ b/etc/psa_update/opkg_commands
@@ -1,3 +1,10 @@
+###############################################################################
+#                               NOTE
+#
+# opkg-commands added to this file will be executed by ATBUpdateTool.          
+###############################################################################
+#
+#
 # opkg prefix will be added inside evaluating script
 #
 # package manipulation commands without package:
@@ -12,6 +19,7 @@
 # 2023-06-29: (5) test-post-merge-step.
 # 2023-06-29: (6) test-post-merge-step.
 # 2023-06-29: (7) test-post-merge-step.
+# 2023-06-29: (8) test-post-merge-step.
 #
 # informational commands without package:
 # list, list-installed, list-upgradable