diff --git a/chrome_tixcraft.py b/chrome_tixcraft.py
index bba2737..6e05990 100644
--- a/chrome_tixcraft.py
+++ b/chrome_tixcraft.py
@@ -7,8 +7,9 @@ import json
 import random
 #print("python version", platform.python_version())
 
-# seleniumwire not support python 2.x.
-# if you want running under python 2.x, you need to assign driver_type = 'stealth'
+# 'seleniumwire' and 'selenium 4' raise error when running python 2.x 
+# PS: python 2.x will be removed in future. 
+
 #driver_type = 'selenium'
 #driver_type = 'stealth'
 driver_type = 'undetected_chromedriver'
@@ -66,7 +67,7 @@ ssl._create_default_https_context = ssl._create_unverified_context
 #附註1：沒有寫的很好，很多地方應該可以模組化。
 #附註2：
 
-CONST_APP_VERSION = u"MaxBot (2022.10.19)"
+CONST_APP_VERSION = u"MaxBot (2022.10.20)"
 
 CONST_FROM_TOP_TO_BOTTOM = u"from top to bottom"
 CONST_FROM_BOTTOM_TO_TOP = u"from bottom to top"
diff --git a/settings.py b/settings.py
index 4392ed6..6897c22 100644
--- a/settings.py
+++ b/settings.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 #encoding=utf-8
+# 'seleniumwire' and 'selenium 4' raise error when running python 2.x 
+# PS: python 2.x will be removed in future. 
 
 try:
     # for Python2
@@ -17,7 +19,7 @@ import sys
 import platform
 import json
 
-CONST_APP_VERSION = u"MaxBot (2022.10.19)"
+CONST_APP_VERSION = u"MaxBot (2022.10.20)"
 
 CONST_FROM_TOP_TO_BOTTOM = u"from top to bottom"
 CONST_FROM_BOTTOM_TO_TOP = u"from bottom to top"