diff --git a/CHANGELOG b/CHANGELOG
index de833d8a..f0245329 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,18 @@
+Changes to version 1.1.0
+------------------------
+
+- MMS client/server: added write support for named variable lists
+- IEC 61850 client/server: added support for SetDataSet service
+- C# API: client - added support to write data set values
+- IEC 61850 client: Changed result strings of IedConnection_getDataDirectoryByFC. Removed appended FC string.
+- MMS client/server: extended BER encoder to support MMS PDU sizes with more than 64k
+- C# API: server - keep references to internal control handler delegates to avoid garbage collection
+- IEC 61850 server: added IedModel_getDeviceByInst function
+- SV subscriber: added subscriber side handling for RefrTm
+- SV publisher: Changed SampledValuesPublisher_create to support setting of Communication parameters at runtime
+- all: small fixes and code optimizations
+
+
 Changes to version 1.0.2
 ------------------------
 - server: added MmsFileAccessHandler for server side monitoring and control of file services
diff --git a/src/common/inc/libiec61850_platform_includes.h b/src/common/inc/libiec61850_platform_includes.h
index fcc50c6b..9130f50f 100644
--- a/src/common/inc/libiec61850_platform_includes.h
+++ b/src/common/inc/libiec61850_platform_includes.h
@@ -15,7 +15,7 @@
 
 #include "platform_endian.h"
 
-#define LIBIEC61850_VERSION "1.1"
+#define LIBIEC61850_VERSION "1.1.0"
 
 #ifndef CONFIG_DEFAULT_MMS_VENDOR_NAME
 #define CONFIG_DEFAULT_MMS_VENDOR_NAME "libiec61850.com"
diff --git a/src/mms/iso_acse/acse.c b/src/mms/iso_acse/acse.c
index 67f0ad15..6125003a 100644
--- a/src/mms/iso_acse/acse.c
+++ b/src/mms/iso_acse/acse.c
@@ -88,7 +88,6 @@ checkAuthentication(AcseConnection* self, uint8_t* authMechanism, int authMechLe
 }
 
 
-
 static int
 parseUserInformation(AcseConnection* self, uint8_t* buffer, int bufPos, int maxBufPos, bool* userInfoValid)
 {
diff --git a/src/mms/iso_mms/client/mms_client_write.c b/src/mms/iso_mms/client/mms_client_write.c
index 1b7353ab..ed0c6665 100644
--- a/src/mms/iso_mms/client/mms_client_write.c
+++ b/src/mms/iso_mms/client/mms_client_write.c
@@ -172,7 +172,7 @@ mmsClient_parseWriteResponse(ByteBuffer* message, int32_t bufPos, MmsError* mmsE
             uint32_t dataAccessErrorCode =
                     BerDecoder_decodeUint32(buf, length, bufPos);
 
-            if ((dataAccessErrorCode >= 0) || (dataAccessErrorCode < 13)) {
+            if (dataAccessErrorCode < 13) {
                 *mmsError = mapDataAccessErrorToMmsError(dataAccessErrorCode);
                 retVal = (MmsDataAccessError) dataAccessErrorCode;
             }
diff --git a/src/mms/iso_mms/server/mms_write_service.c b/src/mms/iso_mms/server/mms_write_service.c
index b3364dcd..c616f4df 100644
--- a/src/mms/iso_mms/server/mms_write_service.c
+++ b/src/mms/iso_mms/server/mms_write_service.c
@@ -95,7 +95,7 @@ MmsServerConnection_sendWriteResponse(MmsServerConnection self, uint32_t invokeI
     MmsServer_releaseTransmitBuffer(self->server);
 }
 
-
+#if 0
 typedef struct {
     uint8_t type; /* 0 = vmd-specific, 1 = domain-specific, 2 = association-specific */
     uint8_t* name;
@@ -319,6 +319,7 @@ mmsServer_handleWriteRequest2(
          bufPos += length;
     }
 }
+#endif
 
 static void
 createWriteNamedVariableListResponse(