diff --git a/src/common/inc/libiec61850_platform_includes.h b/src/common/inc/libiec61850_platform_includes.h
index f2770139..808b6928 100644
--- a/src/common/inc/libiec61850_platform_includes.h
+++ b/src/common/inc/libiec61850_platform_includes.h
@@ -17,7 +17,7 @@
 
 #include "platform_endian.h"
 
-#define LIBIEC61850_VERSION "1.3.0"
+#define LIBIEC61850_VERSION "1.4.0"
 
 #ifndef CONFIG_DEFAULT_MMS_VENDOR_NAME
 #define CONFIG_DEFAULT_MMS_VENDOR_NAME "libiec61850.com"
diff --git a/src/iec61850/client/client_report_control.c b/src/iec61850/client/client_report_control.c
index bce37e21..3cfd4ffc 100644
--- a/src/iec61850/client/client_report_control.c
+++ b/src/iec61850/client/client_report_control.c
@@ -441,7 +441,15 @@ private_ClientReportControlBlock_updateValues(ClientReportControlBlock self, Mms
 	return true;
 }
 
+typedef void
+(*IedConnection_GetRCBValuesHandler) (int invokeId, void* parameter, IedClientError err, ClientReportControlBlock rcb);
 
+uint32_t
+IedConnection_getRCBValuesAsync(IedConnection self, IedClientError* error, const char* rcbReference,
+        IedConnection_GetRCBValuesHandler handler, void* parameter)
+{
+    //TODO implement
+}
 
 ClientReportControlBlock
 IedConnection_getRCBValues(IedConnection self, IedClientError* error, const char* rcbReference,
@@ -511,6 +519,13 @@ IedConnection_getRCBValues(IedConnection self, IedClientError* error, const char
     return returnRcb;
 }
 
+uint32_t
+IedConnection_setRCBValues(IedConnection self, IedClientError* error, ClientReportControlBlock rcb,
+        uint32_t parametersMask, bool singleRequest, IedConnection_WriteObjectHandler handler, void* parameter)
+{
+    //TODO implement
+}
+
 void
 IedConnection_setRCBValues(IedConnection self, IedClientError* error, ClientReportControlBlock rcb,
         uint32_t parametersMask, bool singleRequest)
diff --git a/src/iec61850/client/ied_connection.c b/src/iec61850/client/ied_connection.c
index 4675f900..ea56bdf7 100644
--- a/src/iec61850/client/ied_connection.c
+++ b/src/iec61850/client/ied_connection.c
@@ -1,7 +1,7 @@
 /*
  *  ied_connection.c
  *
- *  Copyright 2013, 2014 Michael Zillgith
+ *  Copyright 2013-2018 Michael Zillgith
  *
  *  This file is part of libIEC61850.
  *
@@ -1640,6 +1640,59 @@ struct sClientProvidedFileReadHandler {
     uint32_t byteReceived;
 };
 
+typedef void
+(*IedConnection_FileDirectoryHandler) (int invokeId, void* parameter, IedClientError err, char* filename, uint32_t size, uint64_t lastModfified,
+        bool moreFollows);
+
+static void
+fileDirectoryHandler(int invokeId, void* parameter, MmsError err, char* filename, uint32_t size, uint64_t lastModfified,
+        bool moreFollows)
+{
+    IedConnection self = (IedConnection) parameter;
+
+    IedConnectionOutstandingCall call = lookupOutstandingCall(self, invokeId);
+
+    if (call) {
+
+        IedConnection_FileDirectoryHandler handler =  (IedConnection_FileDirectoryHandler) call->callback;
+
+        handler(invokeId, call->callbackParameter, iedConnection_mapMmsErrorToIedError(err), filename, size, lastModfified, moreFollows);
+
+        if (filename == NULL)
+            releaseOutstandingCall(self, call);
+    }
+    else {
+        if (DEBUG_IED_CLIENT)
+            printf("IED_CLIENT: internal error - no matching outstanding call!\n");
+    }
+}
+
+uint32_t
+IedConnection_getFileDirectoryAsync(IedConnection self, IedClientError* error, const char* directoryName, const char* continueAfter,
+        IedConnection_FileDirectoryHandler handler, void* parameter)
+{
+
+    MmsError err = MMS_ERROR_NONE;
+
+    IedConnectionOutstandingCall call = allocateOutstandingCall(self);
+
+    if (call == NULL) {
+       *error = IED_ERROR_OUTSTANDING_CALL_LIMIT_REACHED;
+       return 0;
+    }
+
+    call->callback = handler;
+    call->callbackParameter = parameter;
+
+
+    call->invokeId = MmsConnection_getFileDirectoryAsync(self->connection, &err, directoryName, continueAfter,
+            fileDirectoryHandler, self);
+
+    *error = iedConnection_mapMmsErrorToIedError(err);
+
+    return call->invokeId;
+}
+
 static void
 mmsFileReadHandler(void* parameter, int32_t frsmId, uint8_t* buffer, uint32_t bytesReceived)
 {
diff --git a/src/iec61850/inc/iec61850_client.h b/src/iec61850/inc/iec61850_client.h
index 0215a022..fd628ef2 100644
--- a/src/iec61850/inc/iec61850_client.h
+++ b/src/iec61850/inc/iec61850_client.h
@@ -746,6 +746,13 @@ ClientReportControlBlock
 IedConnection_getRCBValues(IedConnection self, IedClientError* error, const char* rcbReference,
         ClientReportControlBlock updateRcb);
 
+typedef void
+(*IedConnection_GetRCBValuesHandler) (int invokeId, void* parameter, IedClientError err, ClientReportControlBlock rcb);
+
+uint32_t
+IedConnection_getRCBValuesAsync(IedConnection self, IedClientError* error, const char* rcbReference,
+        IedConnection_GetRCBValuesHandler handler, void* parameter);
+
 /** Describes the reason for the inclusion of the element in the report */
 typedef enum {
     /** the element is not included in the received report */
@@ -854,6 +861,10 @@ void
 IedConnection_setRCBValues(IedConnection self, IedClientError* error, ClientReportControlBlock rcb,
         uint32_t parametersMask, bool singleRequest);
 
+uint32_t
+IedConnection_setRCBValues(IedConnection self, IedClientError* error, ClientReportControlBlock rcb,
+        uint32_t parametersMask, bool singleRequest, IedConnection_WriteObjectHandler handler, void* parameter);
+
 /**
  * \brief Callback function for receiving reports
  *
@@ -2202,6 +2213,21 @@ LinkedList /*<FileDirectoryEntry>*/
 IedConnection_getFileDirectoryEx(IedConnection self, IedClientError* error, const char* directoryName, const char* continueAfter,
         bool* moreFollows);
 
+/**
+ * \brief Callback handler for the get file directory service
+ *
+ * Will be called once for each file directory entry and after the last entry with \ref filename = NULL to indicate
+ * with \ref moreFollows if more data is available at the server. In case of an error the callback will be called with
+ * \ref err != IED_ERROR_OK and moreFollows = false.
+ */
+typedef void
+(*IedConnection_FileDirectoryHandler) (int invokeId, void* parameter, IedClientError err, char* filename, uint32_t size, uint64_t lastModfified,
+        bool moreFollows);
+
+uint32_t
+IedConnection_getFileDirectoryAsync(IedConnection self, IedClientError* error, const char* directoryName, const char* continueAfter,
+        IedConnection_FileDirectoryHandler handler, void* parameter);
+
 /**
  * \brief user provided handler to receive the data of the GetFile request
  *