diff --git a/APSPU_I2C.py b/APSPU_I2C.py
index 55b0c95bea3ec5a3aca54d7374779f15367bb129..60a47c53b4cfdd1e5b7e8401e0052ebe5b120ef2 100644
--- a/APSPU_I2C.py
+++ b/APSPU_I2C.py
@@ -1,6 +1,7 @@
 #******************************************#
 # I2C address, registers and ports for UNB2c
 # Created: 2021-05-11
+# Last update 2023-01-27 for L2TS production series
 #******************************************#
 
 ###################################