Index: NVDataMgmtHDRecords.h
===================================================================
diff -u -r192c8f1aa79ad0ef4a50be44a6ba37a8939ac823 -r77b29084a85f241dd6c83ef838e076bac666b11c
--- NVDataMgmtHDRecords.h	(.../NVDataMgmtHDRecords.h)	(revision 192c8f1aa79ad0ef4a50be44a6ba37a8939ac823)
+++ NVDataMgmtHDRecords.h	(.../NVDataMgmtHDRecords.h)	(revision 77b29084a85f241dd6c83ef838e076bac666b11c)
@@ -33,7 +33,7 @@
 // ********** public definitions **********
 
 #define MAX_TOP_LEVEL_PN_CHARS 10U                                                                             ///< Max number of characters for top level part number.
-#define MAX_TOP_LEVEL_SN_CHARS 15U                                                                             ///< Max number of characters for top level serial number.
+#define MAX_TOP_LEVEL_SN_CHARS 20U                                                                             ///< Max number of characters for top level serial number.
 
 #ifndef _RELEASE_
 /// Software configuration enums
@@ -81,6 +81,8 @@
     SW_CONFIG_ENABLE_DIALYSATE_INLET_PUMP_OPEN_LOOP,                                                           ///< Software configuration enable dialysate inlet pump open loop.
     SW_CONFIG_DISABLE_SWITCHES_MONITOR,                                                                        ///< Software configuration disable switches monitor.
     SW_CONFIG_ENABLE_VBA_SPECIAL_POSITION_C,                                                                   ///< Software configuration enable VBA special position C.
+    SW_CONFIG_ENABLE_V3_SYSTEM,                                                                                ///< Software configuration enable V3 system.
+    SW_CONFIG_DISABLE_SERVICE_AND_DISINFECT_CHECK,                                                             ///< Software configuration disable service and disinfect checks.
     NUM_OF_SW_CONFIGS                                                                                          ///< Number of software configurations.
 } SOFTWARE_CONFIG_T;
 #endif
@@ -146,6 +148,14 @@
     NUM_OF_CAL_DATA_HD_TEMP_SENSORS,                                                                            ///< Number of HD temperature sensors.
 } CAL_DATA_HD_TEMEPERATURE_SENSORS_T;
 
+/// HD usage info items
+typedef enum hd_usage_items
+{
+    USAGE_INFO_TX_HOURS_SINCE_LAST_SRVC = 0,                                                                    ///< Usage info Tx hours since last service.
+    USAGE_INFO_START_TX_TIME,                                                                                   ///< Usage info Tx start time.
+    NUM_OF_USAGE_INFO_ITEMS                                                                                     ///< Number of usage info items.
+} HD_USAGE_INFO_ITEMS_T;
+
 #pragma pack(push, 1)
 /// Polynomial calibration structure
 typedef struct
@@ -250,6 +260,7 @@
     U08 serviceLoc;                                                                                             ///< HD service location.
     U32 lastServiceEpochDate;                                                                                   ///< HD last service date in epoch.
     U32 serviceIntervalSeconds;                                                                                 ///< HD service interval in seconds.
+    U32 lastResetTimeEpoch;                                                                                     ///< Last time the record was reset in epoch.
     U16 crc;                                                                                                    ///< CRC for the HD service record structure.
 } HD_SERVICE_RECORD_T;
 
@@ -259,6 +270,7 @@
     F32 txTimeTotalHrs;                                                                                         ///< Treatment time total in hours (never reset).
     F32 txTimeSinceLastSrvcHrs;                                                                                 ///< Treatment time since last service in hours.
     U32 txLastStartTimeEpoch;                                                                                   ///< Last treatment time in epoch.
+    U32 lastResetTimeEpoch;                                                                                     ///< Last time the record was reset in epoch.
     U16 crc;                                                                                                    ///< CRC for the HD usage info structure.
 } HD_USAGE_INFO_RECORD_T;