Index: MsgDefs.h
===================================================================
diff -u -re55b580705d6ab854cc0054dc2df46af97e0d1e1 -r67d164e409d8c8345b1e7846386d0ec98e981043
--- MsgDefs.h	(.../MsgDefs.h)	(revision e55b580705d6ab854cc0054dc2df46af97e0d1e1)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 67d164e409d8c8345b1e7846386d0ec98e981043)
@@ -8,8 +8,8 @@
 *
 * @file    MsgDefs.h
 *
-* @author  (last)      Raghu Kallala
-* @date    (last)      29-Apr-2026
+* @author  (last)      Varshini Nagabooshanam
+* @date    (last)      06-May-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  01-Aug-2024
@@ -195,6 +195,17 @@
     MSG_ID_UI_WATER_SAMPLE_RESULT_REQUEST = 0xA3,                                   ///< UI water sample result request
     MSG_ID_UI_PRESSURE_LIMIT_WIDEN_REQUEST = 0xA4,                                  ///< UI pressure limit widen request.
     MSG_ID_TD_PRESSURE_LIMIT_WIDEN_RESPONSE = 0xA5,                                 ///< TD pressure limit widen response.
+    MSG_ID_UI_RECIRCULATE_REQUEST = 0xA6,                                           ///< UI recirculate request
+    MSG_ID_TD_RECIRCULATE_RESPONSE = 0xA7,                                          ///< TD recirculate response
+    MSG_ID_TD_RECIRCULATE_DATA = 0xA8,                                              ///< TD recirculate data
+    MSG_ID_UI_ADJUST_TREATMENT_LOGS_REQUEST = 0xA9,                                 ///< UI adjust treatment logs request.
+    MSG_ID_TD_ADJUST_TREATMENT_LOGS_RESPONSE = 0xAA,                                ///< TD adjust treatment logs response
+    MSG_ID_UI_ADJUST_PATIENT_DISCONNECT_CONFIRM_REQUEST = 0xAB,                     ///< UI adjust patient disconnect confirm request
+    MSG_ID_TD_ADJUST_PATIENT_DISCONNECT_CONFIRM_RESPONSE = 0xAC,                    ///< TD adjust patient disconnect confirm response
+    MSG_ID_TD_DRY_SELF_TEST_PROGRESS_DATA = 0xAD,                                   ///< TD dry self test progress data
+    MSG_ID_TD_TUBING_SET_BARCODE_SCAN_REQUEST = 0xAE,                               ///< TD tube set authentication request
+    MSG_ID_TD_TUBE_SET_AUTHENTICATION_REQUEST = 0xAF,                               ///< UI tube set authentication acknowledge request
+    MSG_ID_TD_TUBE_SET_AUTHENTICATION_ACK_RESPONSE = 0xB0,                          ///< TD tube set authentication acknowledge response
     MSG_ID_DD_SUBSTITUTION_PUMP_DATA = 0xA9,                                        ///< DD substitution pump broadcast data.
 
     // service/test CAN messages
@@ -381,7 +392,7 @@
     MSG_ID_DD_DIALYSATE_DELTA_CONDUCTIVITY_OVERRIDE_REQUEST = 0xA069,                   ///< DD Dialysate delta target conductivity override
     MSG_ID_DD_BICART_UPPER_PRESSURE_OVERRIDE_REQUEST = 0xA06A,                          ///< DD bicarb cartridge upper threshold pressure override
     MSG_ID_DD_BICART_LOWER_PRESSURE_OVERRIDE_REQUEST = 0xA06B,                          ///< DD bicarb cartridge lower threshold pressure override
-    MSG_ID_DD_FLOATER_LEVEL_OVERRIDE_REQUEST = 0xA06C,                                  ///< DD floater level override request
+    MSG_ID_DD_FLOATER_LEVEL_OVERRIDE_REQUEST = 0xA06C,                                  ///< DD override request for D6 floater level override
     MSG_ID_DD_SUBSTITUTION_PUMP_START_STOP_OVERRIDE_REQUEST = 0xA06D,                   ///< DD substitution pump start stop override request
     MSG_ID_DD_SUBSTITUTION_PUMP_BROADCAST_OVERRIDE_REQUEST = 0xA06E,                    ///< DD substitution pump broadcast override request
 
@@ -535,6 +546,7 @@
     REQUEST_REJECT_REASON_ACID_CONV_FACTOR_MISMATCH = 54,                           ///< Acid conversion factor from UI mismatch with FW
     REQUEST_REJECT_REASON_INVALID_PATIENT_WEIGHTS = 55,                             ///< Patient pre and estimated target weights are invalid
     REQUEST_REJECT_REASON_UF_VOL_AND_WEIGHTS_INCONSISTENT = 56,                     ///< UF volume and the patient weights are not consistent
+    REQUEST_REJECT_REASON_TD_AUTHENTICATION_INVALID = 57,                           ///< TD authentication invalid
     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