Index: dialin/dg/dialysate_generator.py
===================================================================
diff -u -rbff28676dd855ea33707bbb26a624abc94aebdf0 -rf41b8d86fed7fa08b1ecf42cb39f4406ce149cf5
--- dialin/dg/dialysate_generator.py	(.../dialysate_generator.py)	(revision bff28676dd855ea33707bbb26a624abc94aebdf0)
+++ dialin/dg/dialysate_generator.py	(.../dialysate_generator.py)	(revision f41b8d86fed7fa08b1ecf42cb39f4406ce149cf5)
@@ -83,6 +83,8 @@
     # HD login password
     DG_LOGIN_PASSWORD = '123'
 
+    SW_COMPATIBILITY_REV = 1
+
     # DG version message field positions
     START_POS_MAJOR = DenaliMessage.PAYLOAD_START_INDEX
     END_POS_MAJOR = START_POS_MAJOR + 1
@@ -342,7 +344,7 @@
         minor = unsigned_byte_to_bytearray(0)
         micro = unsigned_byte_to_bytearray(0)
         build = short_to_bytearray(0)
-        compatibility = integer_to_bytearray(0)
+        compatibility = integer_to_bytearray(self.SW_COMPATIBILITY_REV)
 
         payload = major + minor + micro + build + compatibility
 
Index: dialin/hd/ui_proxy.py
===================================================================
diff -u -r3ef759269150e6d8001da1582e99554886ca0777 -rf41b8d86fed7fa08b1ecf42cb39f4406ce149cf5
--- dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision 3ef759269150e6d8001da1582e99554886ca0777)
+++ dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision f41b8d86fed7fa08b1ecf42cb39f4406ce149cf5)
@@ -1022,7 +1022,7 @@
         minor = unsigned_byte_to_bytearray(0)
         micro = unsigned_byte_to_bytearray(0)
         build = short_to_bytearray(0)
-        compatibility = integer_to_bytearray(SW_COMPATIBILITY_REV)
+        compatibility = integer_to_bytearray(self.SW_COMPATIBILITY_REV)
 
         payload = major + minor + micro + build + compatibility