Index: MsgDefs.h
===================================================================
diff -u -rd2e5e9dba92b9b0b0245e3cb8b5f33250f875c7d -r3e6579c4e3bced7ce17946c3a48031b58858bb9c
--- MsgDefs.h	(.../MsgDefs.h)	(revision d2e5e9dba92b9b0b0245e3cb8b5f33250f875c7d)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 3e6579c4e3bced7ce17946c3a48031b58858bb9c)
@@ -9,7 +9,7 @@
 * @file    MsgDefs.h
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      11-Jan-2023
+* @date    (last)      03-Feb-2023
 *
 * @author  (original)  Sean
 * @date    (original)  27-Feb-2020
@@ -475,6 +475,7 @@
     MSG_ID_DG_HEATERS_DUTY_CYCLE_OVERRIDE = 0xA061,                     ///< DG heaters duty cycle override request
     MSD_ID_DG_RTC_CTL_REG1_STATUS_OVERRIDE = 0xA062,                    ///< DG RTC control register 1 status override
     MSD_ID_DG_RTC_CTL_REG3_STATUS_OVERRIDE = 0xA063,                    ///< DG RTC control register 3 status override
+    MSG_ID_DG_NELSON_DISINFECT_SUPPORT = 0xA064,                        ///< DG Nelson labs disinfect support message
 
     MSG_ID_HD_DEBUG_EVENT = 0xFFF1,                                     ///< HD debug event text to be logged in event log
     MSG_ID_DG_DEBUG_EVENT = 0xFFF2,                                     ///< DG debug event text to be logged in event log
@@ -539,6 +540,7 @@
     REQUEST_REJECT_REASON_HD_SERVICE_IS_DUE = 48,                       ///< HD service is due
     REQUEST_REJECT_REASON_DG_CHEM_FLUSH_NOT_COMPLETED = 49,             ///< DG chemical flush is not complete
     REQUEST_REJECT_REASON_DG_RO_FILTER_TEMPERATURE_OUT_OF_RANGE = 50,   ///< DG RO filter temperature out of range
+    REQUEST_REJECT_REASON_DG_INCOMPATIBLE = 51,                         ///< DG firmware version is not compatible with HD firmware
     NUM_OF_REQUEST_REJECT_REASONS                                       ///< Number of settings change reject codes
 };
 typedef enum Request_Reject_Reasons REQUEST_REJECT_REASON_CODE_T;       ///< Type for settings change rejection reason codes enumeration