Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs
===================================================================
diff -u -r2529 -r2864
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 2529)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 2864)
@@ -29,6 +29,7 @@
 using Deltares.Standard.IO.DtoAssembler;
 using Deltares.Standard.Reflection;
 using System.IO;
+using System.Xml;
 using Deltares.Dam.Data.IO;
 using Deltares.Geotechnics.Soils;
 using Deltares.Standard;
@@ -58,7 +59,7 @@
 
         public DamProject()
         {
-            this.damProjectData = new DamProjectData();            
+            this.damProjectData = new DamProjectData();
         }
 
         public static string GetNewTempDirectory()
@@ -272,6 +273,10 @@
                 object project = xmlSerializer.XmlDeserialize(fileName, typeof(DamProjectData), new DefaultClassFactory());
 
                 this.damProjectData = (DamProjectData)project;
+                if (damProjectData != null)
+                {
+                    damProjectData.VersionInfo.InitVersionInfoAfterRead();
+                }
                 if (damProjectData.DamProjectType == DamProjectType.AssessOld)
                 {
                     ClearProject();
@@ -297,6 +302,7 @@
                 }
                 // Project still needs a reference to soilmaterials database; to be resolved later.
                 // This will become obsolete as soon as Delphi DGeoStability version is no longer used.
+                ResolveBackwardCompatibility();
                 UpdateSoilDatabaseReferences(damProjectFolder);
                 UpdateSoilPropertiesToSoilDatabase();
             });
@@ -310,6 +316,15 @@
             return damProjectData;
         }
 
+        private void ResolveBackwardCompatibility()
+        {
+            if (DamProjectData.VersionInfo.FileVersionAsRead == 0)
+            {
+                XmlDocument xmlDocument = new XmlDocument();
+                xmlDocument.LoadXml(this.ProjectFileName);
+            }
+        }
+
         /// <summary>
         /// Updates older projects for missing data or changed data model.
         /// </summary>
@@ -666,6 +681,8 @@
                 savedProjectMap = ProjectMap;
             }
 
+            damProjectData.VersionInfo.InitVersionInfo();
+
             DataEventPublisher.InvokeWithoutPublishingEvents(() =>
             {
                 EnsureSoilmaterialsFileWithProject(fileName);
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Deltares.Dam.Data.csproj
===================================================================
diff -u -r2576 -r2864
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Deltares.Dam.Data.csproj	(.../Deltares.Dam.Data.csproj)	(revision 2576)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Deltares.Dam.Data.csproj	(.../Deltares.Dam.Data.csproj)	(revision 2864)
@@ -194,6 +194,7 @@
     <Compile Include="IAssignable.cs" />
     <Compile Include="IO\DamProjectVersionXmlHandler.cs" />
     <Compile Include="IO\FailureMechanismeParamatersMStabXmlHandler.cs" />
+    <Compile Include="IO\VersionInfo.cs" />
     <Compile Include="License\DamLicense.cs" />
     <Compile Include="Sensors\SensorData.cs" />
     <Compile Include="Sensors\SensorImportFromExcelSheet.cs" />
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProjectData.cs
===================================================================
diff -u -r2508 -r2864
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProjectData.cs	(.../DamProjectData.cs)	(revision 2508)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProjectData.cs	(.../DamProjectData.cs)	(revision 2864)
@@ -25,6 +25,7 @@
 using System.Linq;
 using System.Xml.Serialization;
 using System.Collections.Generic;
+using Deltares.Dam.Data.IO;
 using Deltares.Dam.Data.Sensors;
 using Deltares.Standard;
 using Deltares.Standard.Attributes;
@@ -40,6 +41,7 @@
     public class DamProjectData : Project, IDomain, IDisposable
     {
         public readonly double MissValStabilitySafetyFactor = -1.0;
+        private VersionInfo versionInfo;
         private WaterBoard waterBoard;
         private DamProjectCalculationSpecification damProjectCalculationSpecification;
         private WaterBoardJob waterBoardJob = null;
@@ -59,11 +61,20 @@
         /// </summary>
         public DamProjectData()
         {
+            this.versionInfo = new VersionInfo();
             this.waterBoard = new WaterBoard();
             this.waterBoardJob = null;
             this.damProjectCalculationSpecification = new DamProjectCalculationSpecification();            
         }
 
+        /// <summary>Gets the version information.</summary>
+        /// <value>The version information.</value>
+        public VersionInfo VersionInfo
+        {
+            get { return versionInfo; }
+            set { versionInfo = value; }
+        }
+
         /// <summary>
         /// Gets or sets the project working path.
         /// </summary>
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/IO/VersionInfo.cs
===================================================================
diff -u
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/IO/VersionInfo.cs	(revision 0)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/IO/VersionInfo.cs	(revision 2864)
@@ -0,0 +1,87 @@
+// Copyright (C) Stichting Deltares 2019. All rights reserved.
+//
+// This file is part of the application DAM - Clients Library.
+//
+// DAM - UI is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System.Reflection;
+using System.Xml.Serialization;
+using Deltares.Standard.Attributes;
+
+namespace Deltares.Dam.Data.IO
+{
+    [XmlNoKey]
+    public class VersionInfo
+    {
+        public const int CurrentFileVersion = 1;
+        /// <summary>Current File Version.</summary>
+        /// <value>The file version.</value>
+        ///
+        /// 
+        public int FileVersion { get; set; } // Default is 0 and indicates the situation that FileVersion was not introduced yet
+
+        /// <summary>Gets or sets the assembly name with which the input file is being created.</summary>
+        /// <value>The program version.</value>
+        /// 
+        public string AssemblyName { get; set; }
+
+        /// <summary>Gets or sets the assembly version with which the input file is being created.</summary>
+        /// <value>The program version.</value>
+        /// 
+        public string AssemblyVersion { get; set; }
+
+        /// <summary>Gets or sets the version as read.</summary>
+        /// <value>The file version as read.</value>
+        ///
+        /// 
+        [XmlIgnore]
+        public int FileVersionAsRead { get; set; }
+        /// <summary>Gets or sets the assembly name with which the input file has been created.</summary>
+        /// <value>The assembly version as read.</value>
+        [XmlIgnore]
+        public string AssemblyNameAsRead { get; set; }
+
+        /// <summary>Gets or sets the assembly version with which the input file has been created.</summary>
+        /// <value>The assembly version as read.</value>
+        [XmlIgnore]
+        public string AssemblyVersionAsRead { get; set; }
+
+        /// <summary>Initializes the version information to the current program version.</summary>
+        public void InitVersionInfo()
+        {
+            FileVersion = VersionInfo.CurrentFileVersion;
+            var hostAssembly = Assembly.GetEntryAssembly();
+            if (hostAssembly == null)
+            {
+                hostAssembly = Assembly.GetExecutingAssembly();
+            }
+            AssemblyName = hostAssembly.GetName().Name;
+            AssemblyVersion = hostAssembly.GetName().Version.ToString();
+        }
+
+        /// <summary>After the read the current version info should be transferred to the ..AsRead fields
+        /// and after that current version info can be initialized.</summary>
+        public void InitVersionInfoAfterRead()
+        {
+            FileVersionAsRead = FileVersion;
+            AssemblyNameAsRead = AssemblyName;
+            AssemblyVersionAsRead = AssemblyVersion;
+            InitVersionInfo();
+        }
+    }
+}
\ No newline at end of file