add protocol version

csgo/demo_loader.go

@@ -367,6 +367,8 @@ func (dml *DemoMatchLoader) greetGC() {
 	for !dml.GCReady {
 		log.Debugf("[DL] Sending GC greeting")
 		msg := protobuf.CMsgClientHello{}
+		pVersion := steamlang.MsgClientLogon_CurrentProtocol
+		msg.Version = &pVersion
 		dml.client.GC.Write(gamecoordinator.NewGCMsgProtobuf(APPID, uint32(protobuf.EGCBaseClientMsg_k_EMsgGCClientHello), &msg))
 		time.Sleep(1 * time.Second)
 	}