diff --git a/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/ardupilotmega.h b/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/ardupilotmega.h
index 0812f4f3c9..e792bf2e95 100644
--- a/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/ardupilotmega.h
+++ b/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/ardupilotmega.h
@@ -46,6 +46,7 @@ typedef enum MAV_CMD
 	MAV_CMD_NAV_PATHPLANNING=81, /* Control autonomous path planning on the MAV. |0: Disable local obstacle avoidance / local path planning (without resetting map), 1: Enable local path planning, 2: Enable and reset local path planning| 0: Disable full path planning (without resetting map), 1: Enable, 2: Enable and reset map/occupancy grid, 3: Enable and reset planned route, but not occupancy grid| Empty| Yaw angle at goal, in compass degrees, [0..360]| Latitude/X of goal| Longitude/Y of goal| Altitude/Z of goal|  */
 	MAV_CMD_NAV_SPLINE_WAYPOINT=82, /* Navigate to MISSION using a spline path. |Hold time in decimal seconds. (ignored by fixed wing, time to stay at MISSION for rotary wing)| Empty| Empty| Empty| Latitude/X of goal| Longitude/Y of goal| Altitude/Z of goal|  */
 	MAV_CMD_NAV_GUIDED=90, /* Pass control to an external controller. |Timeout in seconds.  The maximum amount of time that the external controller will be allowed to control the vehicle.  0 means no timeout| Altitude min. If vehicle moves below this altitude the command will be aborted and the mission will continue.  0 for no lower alt limit| Altitude max. If vehicle moves above this altitude the command will be aborted and the mission will continue.  0 for no upper alt limit| Horizontal move limit. If vehicle moves more than this distance from it's location at the moment the command was begun, the command will be aborted and the mission will continue.  0 for no horizontal movement limit| Empty| Empty| Empty|  */
+	MAV_CMD_NAV_VELOCITY=91, /* Navigate at the specified velocity |coordinate_frame - see MAV_FRAME enum| Empty| Empty| Empty| x velocity| y velocity| z velocity|  */
 	MAV_CMD_NAV_LAST=95, /* NOP - This command is only used to mark the upper limit of the NAV/ACTION commands in the enumeration |Empty| Empty| Empty| Empty| Empty| Empty| Empty|  */
 	MAV_CMD_CONDITION_DELAY=112, /* Delay mission state machine. |Delay in seconds (decimal)| Empty| Empty| Empty| Empty| Empty| Empty|  */
 	MAV_CMD_CONDITION_CHANGE_ALT=113, /* Ascend/descend at rate.  Delay mission state machine until desired altitude reached. |Descent / Ascend rate (m/s)| Empty| Empty| Empty| Empty| Empty| Finish Altitude|  */
diff --git a/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/version.h b/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/version.h
index f97f757e67..1a3417306e 100644
--- a/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/version.h
+++ b/libraries/GCS_MAVLink/include/mavlink/v1.0/ardupilotmega/version.h
@@ -5,7 +5,7 @@
 #ifndef MAVLINK_VERSION_H
 #define MAVLINK_VERSION_H
 
-#define MAVLINK_BUILD_DATE "Fri Jul  4 10:35:33 2014"
+#define MAVLINK_BUILD_DATE "Fri Jul  4 10:39:51 2014"
 #define MAVLINK_WIRE_PROTOCOL_VERSION "1.0"
 #define MAVLINK_MAX_DIALECT_PAYLOAD_SIZE 255
  
diff --git a/libraries/GCS_MAVLink/include/mavlink/v1.0/common/version.h b/libraries/GCS_MAVLink/include/mavlink/v1.0/common/version.h
index 5fbf0bc6f4..4070b7a884 100644
--- a/libraries/GCS_MAVLink/include/mavlink/v1.0/common/version.h
+++ b/libraries/GCS_MAVLink/include/mavlink/v1.0/common/version.h
@@ -5,7 +5,7 @@
 #ifndef MAVLINK_VERSION_H
 #define MAVLINK_VERSION_H
 
-#define MAVLINK_BUILD_DATE "Fri Jul  4 10:35:33 2014"
+#define MAVLINK_BUILD_DATE "Fri Jul  4 10:39:51 2014"
 #define MAVLINK_WIRE_PROTOCOL_VERSION "1.0"
 #define MAVLINK_MAX_DIALECT_PAYLOAD_SIZE 255