diff --git a/readme.txt b/readme.txt
index 30bcb79..b9f8959 100644
--- a/readme.txt
+++ b/readme.txt
@@ -39,9 +39,9 @@ STS_O7 For Occupancy sensors
 2024-04-28  restart
 2024-05-12  good for STS-O2 with 2 reed switches (hall-read-1 for door-contact,  hall-read-2 for SOS-emergency button) and rss motion sensor
 2024-05-31  restart for O7 and O6
-
+2024-06-04  before application layer clock sync
 
 ******************************************************************************
 
 
- */
\ No newline at end of file
+ */