diff --git a/proto b/proto
index e9c7f9b9..9d083d5d 160000
--- a/proto
+++ b/proto
@@ -1 +1 @@
-Subproject commit e9c7f9b95d490aea3f0f213d4666d2dbf7e2111c
+Subproject commit 9d083d5d4ff4ef095135b18468004eaba77cb691
diff --git a/src/mesh/NodeDB.cpp b/src/mesh/NodeDB.cpp
index 8f8c0f5b..7ffd92e3 100644
--- a/src/mesh/NodeDB.cpp
+++ b/src/mesh/NodeDB.cpp
@@ -127,6 +127,7 @@ void NodeDB::init()
     myNodeInfo.node_num_bits = sizeof(NodeNum) * 8;
     myNodeInfo.packet_id_bits = sizeof(PacketId) * 8;
     myNodeInfo.message_timeout_msec = FLOOD_EXPIRE_TIME;
+    myNodeInfo.min_app_version = 167;
     generatePacketId(); // FIXME - ugly way to init current_packet_id;
 
     // Init our blank owner info to reasonable defaults
diff --git a/src/mesh/mesh.pb.h b/src/mesh/mesh.pb.h
index ae7edb1f..0eae7eca 100644
--- a/src/mesh/mesh.pb.h
+++ b/src/mesh/mesh.pb.h
@@ -78,6 +78,7 @@ typedef struct _MyNodeInfo {
     uint32_t current_packet_id;
     uint32_t node_num_bits;
     uint32_t message_timeout_msec;
+    uint32_t min_app_version;
 } MyNodeInfo;
 
 typedef struct _Position {
@@ -242,7 +243,7 @@ typedef struct _ToRadio {
 #define RadioConfig_init_default                 {false, RadioConfig_UserPreferences_init_default, false, ChannelSettings_init_default}
 #define RadioConfig_UserPreferences_init_default {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0}}
 #define NodeInfo_init_default                    {0, false, User_init_default, false, Position_init_default, 0, 0}
-#define MyNodeInfo_init_default                  {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0}
+#define MyNodeInfo_init_default                  {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0, 0}
 #define DeviceState_init_default                 {false, RadioConfig_init_default, false, MyNodeInfo_init_default, false, User_init_default, 0, {NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default}, 0, {MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default, MeshPacket_init_default}, false, MeshPacket_init_default, 0}
 #define DebugString_init_default                 {""}
 #define FromRadio_init_default                   {0, 0, {MeshPacket_init_default}}
@@ -258,7 +259,7 @@ typedef struct _ToRadio {
 #define RadioConfig_init_zero                    {false, RadioConfig_UserPreferences_init_zero, false, ChannelSettings_init_zero}
 #define RadioConfig_UserPreferences_init_zero    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0}}
 #define NodeInfo_init_zero                       {0, false, User_init_zero, false, Position_init_zero, 0, 0}
-#define MyNodeInfo_init_zero                     {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0}
+#define MyNodeInfo_init_zero                     {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0, 0}
 #define DeviceState_init_zero                    {false, RadioConfig_init_zero, false, MyNodeInfo_init_zero, false, User_init_zero, 0, {NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero}, 0, {MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero, MeshPacket_init_zero}, false, MeshPacket_init_zero, 0}
 #define DebugString_init_zero                    {""}
 #define FromRadio_init_zero                      {0, 0, {MeshPacket_init_zero}}
@@ -290,6 +291,7 @@ typedef struct _ToRadio {
 #define MyNodeInfo_current_packet_id_tag         11
 #define MyNodeInfo_node_num_bits_tag             12
 #define MyNodeInfo_message_timeout_msec_tag      13
+#define MyNodeInfo_min_app_version_tag           14
 #define Position_latitude_i_tag                  7
 #define Position_longitude_i_tag                 8
 #define Position_altitude_tag                    3
@@ -484,7 +486,8 @@ X(a, STATIC,   SINGULAR, UINT32,   error_count,       9) \
 X(a, STATIC,   SINGULAR, UINT32,   packet_id_bits,   10) \
 X(a, STATIC,   SINGULAR, UINT32,   current_packet_id,  11) \
 X(a, STATIC,   SINGULAR, UINT32,   node_num_bits,    12) \
-X(a, STATIC,   SINGULAR, UINT32,   message_timeout_msec,  13)
+X(a, STATIC,   SINGULAR, UINT32,   message_timeout_msec,  13) \
+X(a, STATIC,   SINGULAR, UINT32,   min_app_version,  14)
 #define MyNodeInfo_CALLBACK NULL
 #define MyNodeInfo_DEFAULT NULL
 
@@ -592,8 +595,8 @@ extern const pb_msgdesc_t ManufacturingData_msg;
 #define RadioConfig_size                         157
 #define RadioConfig_UserPreferences_size         93
 #define NodeInfo_size                            132
-#define MyNodeInfo_size                          104
-#define DeviceState_size                         15457
+#define MyNodeInfo_size                          110
+#define DeviceState_size                         15463
 #define DebugString_size                         258
 #define FromRadio_size                           333
 #define ToRadio_size                             327