diff --git a/include/mysql_protocol.h b/include/mysql_protocol.h
index a95d94939..89b0ba9da 100644
--- a/include/mysql_protocol.h
+++ b/include/mysql_protocol.h
@@ -18,6 +18,15 @@
  * Copyright SkySQL Ab 2013
  */
 
+/*
+ * Revision History
+ *
+ * Date		Who			Description
+ * 01-06-2013	Mark Riddoch		Initial implementation
+ * 14-06-2013	Massimiliano Pinto	Added specific data
+ *					for MySQL session
+ */
+
 #ifndef MYSQL_SCRAMBLE_LEN
 #define MYSQL_SCRAMBLE_LEN GW_MYSQL_SCRAMBLE_SIZE
 #endif
diff --git a/include/session.h b/include/session.h
index 665e6a873..f6e3dea03 100644
--- a/include/session.h
+++ b/include/session.h
@@ -18,6 +18,15 @@
  * Copyright SkySQL Ab 2013
  */
 
+/*
+ * Revision History
+ *
+ * Date		Who			Description
+ * 01-06-2013	Mark Riddoch		Initial implementation
+ * 14-06-2013	Massimiliano Pinto	Added void *data to session
+ *					for session specific data
+ */
+
 struct dcb;
 
 /*