Index: firmware/App/DDCommon.h
===================================================================
diff -u -rd23e4fac50c7034e75f1f4a37505f495dcf16b8e -rc4fdfa017d6df768c5bf1223a5a69cafa47d6b42
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision d23e4fac50c7034e75f1f4a37505f495dcf16b8e)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision c4fdfa017d6df768c5bf1223a5a69cafa47d6b42)
@@ -104,6 +104,20 @@
     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
 {