Old SDK removed
New dotnet SDK added - Release
diff --git a/sdks/dotnet/basyx-core/BaSyx.Models.Export/aas-spec-v2.0/EnvironmentReference_V2_0.cs b/sdks/dotnet/basyx-core/BaSyx.Models.Export/aas-spec-v2.0/EnvironmentReference_V2_0.cs
new file mode 100644
index 0000000..d0736e1
--- /dev/null
+++ b/sdks/dotnet/basyx-core/BaSyx.Models.Export/aas-spec-v2.0/EnvironmentReference_V2_0.cs
@@ -0,0 +1,25 @@
+/*******************************************************************************
+* Copyright (c) 2020 Robert Bosch GmbH
+* Author: Constantin Ziesche (constantin.ziesche@bosch.com)
+*
+* This program and the accompanying materials are made available under the
+* terms of the Eclipse Public License 2.0 which is available at
+* http://www.eclipse.org/legal/epl-2.0
+*
+* SPDX-License-Identifier: EPL-2.0
+*******************************************************************************/
+using Newtonsoft.Json;
+using System.Collections.Generic;
+using System.Xml.Serialization;
+
+namespace BaSyx.Models.Export
+{
+
+ public class EnvironmentReference_V2_0
+ {
+ [JsonProperty("keys")]
+ [XmlArray("keys")]
+ [XmlArrayItem("key")]
+ public List<EnvironmentKey_V2_0> Keys { get; set; }
+ }
+}