Index: firmware/App/DDCommon.h
===================================================================
diff -u -r3f13f08370505c15ae818c90822d18410bf6747c -r0bcd9e3ddfeb40efa313e7ed8d8d58f996a13960
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 3f13f08370505c15ae818c90822d18410bf6747c)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 0bcd9e3ddfeb40efa313e7ed8d8d58f996a13960)
@@ -25,7 +25,7 @@
 #define DD_VERSION_MAJOR        0
 #define DD_VERSION_MINOR        0
 #define DD_VERSION_MICRO        0
-#define DD_VERSION_BUILD  56
+#define DD_VERSION_BUILD  79
 
 // ********** development build switches **********
 
@@ -48,6 +48,9 @@
 //Uncomment below for bicarb chamber filling
 //#define __BICARB_CHAMBER_FILL__   1
 
+//UnComment below for DryBicarb testing
+//#define __DRY_BICARB__            1
+
 //Uncomment below to disable heaters debug message
 #define __HEATERS_DEBUG__         1
 
@@ -99,6 +102,20 @@
     U32 compatibilityRev;                   ///< DD compatibility revision.
 } DD_VERSIONS_T;
 
+/// Payload record structure for an FP versions message.
+typedef struct
+{
+    U08 major;                              ///< FP version major revision.
+    U08 minor;                              ///< FP version minor revision.
+    U08 micro;                              ///< FP version micro revision.
+    U16 build;                              ///< FP build version.
+    U08 fpgaId;                             ///< FP FPGA ID.
+    U08 fpgaMajor;                          ///< FP FPGA major revision.
+    U08 fpgaMinor;                          ///< FP FPGA minor revision.
+    U08 fpgaLab;                            ///< FP FPGA lab revision.
+    U32 compatibilityRev;                   ///< FP compatibility revision.
+} FP_VERSIONS_T;
+
 /// Record defining the fields in a UI version request message.
 typedef struct
 {