Index: firmware/App/DDCommon.h
===================================================================
diff -u -r1eb7496d07548ac5fb33e1051542f42cd5ff529c -r5c1ef41e65eebd8d740f71394cdbcc7e0f79a499
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 1eb7496d07548ac5fb33e1051542f42cd5ff529c)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 5c1ef41e65eebd8d740f71394cdbcc7e0f79a499)
@@ -7,8 +7,8 @@
 *
 * @file    DDCommon.h
 *
-* @author  (last)      Sameer Kalliadan Poyil
-* @date    (last)      29-Apr-2026
+* @author  (last)      Jashwant Gantyada
+* @date    (last)      22-May-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  07-Aug-2024
@@ -22,10 +22,10 @@
 
 // ********** version **********
 
-#define DD_VERSION_MAJOR        0
-#define DD_VERSION_MINOR        0
-#define DD_VERSION_MICRO        0
-#define DD_VERSION_BUILD  81
+#define DD_VERSION_MAJOR    0
+#define DD_VERSION_MINOR    0
+#define DD_VERSION_MICRO    0
+#define DD_VERSION_BUILD    87
 
 // ********** development build switches **********
 
@@ -39,8 +39,8 @@
 //Uncomment below if barometric pressure sensor reading available
 //#define __BARO_PRES_SENSOR__      1
 
-//Uncomment below if required hardware available ( baro and cond sensor) for testing
-//#define ENABLE_ALARM_1
+//Uncomment below to disable the communication to dialin for blood leak embedded mode
+//#define __BLOOD_LEAK_EMB_MODE_RESPONSE_DISABLED__   1
 
 //Uncomment below once characterization/study completed
 //#define ENABLE_ALARM_2
@@ -52,12 +52,21 @@
 #define __HEATERS_DEBUG__         1
 
 //Uncomment below if D1 placement is used for Temp control at dialyzer
-#define __USE_D1_TEMP_     1
+//#define __USE_D1_TEMP_     1
 
 // comment below to disable bicarb multi level sensor for time based chamber F fill
 #define CONDUCTIVE_LEVEL_SENSOR_ENABLED  1
 
+//Uncomment below to disable d30 heater alarm(as all units are not equipped with d30 temp sensor)
+//#define __D30_TEMPERATURE_DISABLED__
 
+//Uncomment below to disable the DD too-many-bad-message-CRCs alarm.
+//#define __BAD_MSG_CRC_ALARM_DISABLED__    1
+
+//Uncomment below to disable the conductivity sensor alarms
+//#define __CONDUCTIVITY_SENSOR_ALARMS_DISABLED__
+
+
     #include <stdio.h>
     #include <strings.h>
 #endif