Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DAMEnumerations.cs
===================================================================
diff -u -r6220 -r6260
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DAMEnumerations.cs	(.../DAMEnumerations.cs)	(revision 6220)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DAMEnumerations.cs	(.../DAMEnumerations.cs)	(revision 6260)
@@ -74,12 +74,6 @@
     Wti2017
 }
 
-public enum PLLineAssignment
-{
-    NoPLLines,
-    ExpertKnowledge
-}
-
 public enum SoilProfileType
 {
     SoilProfile1D,
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Translations.xml
===================================================================
diff -u -r6220 -r6260
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Translations.xml	(.../Translations.xml)	(revision 6220)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Translations.xml	(.../Translations.xml)	(revision 6260)
@@ -173,9 +173,7 @@
     <Translation ID="WaterBoardJob" en-US="WaterBoardJob" nl-NL="Waterschapsberekening"/>
     <Translation ID="Run" en-US="Run" nl-NL="Berekening"/>
     <Translation ID="LogMessages" en-US="LogMessages" nl-NL="Programma meldingen"/>
-    <Translation ID="DamProjectType" en-US="Calculation type" nl-NL="Berekeningstype"/>
-    <Translation ID="InvalidDamProjectType" en-US="The project is for a calculation type that is no longer supported."
-                 nl-NL="Het project is opgezet voor een berekeningstype dat niet langer wordt ondersteund."/>
+    <Translation ID="DamProjectType" en-US="Calculation type" nl-NL="Berekeningstype"/>    
     <Translation ID="DamProjectTypeDescription" en-US="Indicates the purpose of the calculations"
                  nl-NL="Geeft het doel van de berekeningen aan"/>
     <Translation ID="DamDataSourceFileName" en-US="DAM datasource file" nl-NL="DAM databron bestand"/>
@@ -826,13 +824,7 @@
     <Translation ID="FullHydroStatic" en-US="Full hydrostatic" nl-NL="Volledig hydrostatisch"/>
     <Translation ID="HydroStatic" en-US="Hydrostatic" nl-NL="Hydrostatisch"/>
     <Translation ID="SemiTimeDependent" en-US="Semi time dependent" nl-NL="Semi tijdsafhankelijk"/>
-    <Translation ID="ProjectType" en-US="Project Type" nl-NL="Semi tijdsafhankelijk"/>
-    <Translation ID="OpenProjectWarningFileVersion"
-                 en-US="The project was created with an older version of DAM; the following parameters are not present anymore in Location and will be transferred to the location scenarios: Polder level, Head PL2, Head PL3 and Head PL4."
-                 nl-NL="Dit project is gemaakt met een oudere versie van DAM; de volgende parameters zijn niet meer aanwezig in Locatie en worden verplaatst naar de locatie scenarios: Polderpeil, Stijghoogte PL2, Stijghoogte PL3 and Stijghoogte PL4."/>
-    <Translation ID="ZoneTypeWarning"
-                 en-US="The parameter Zone type will be set to 'No Zones' if 'Zone Areas' was selected."
-                 nl-NL="De waarde voor Zone type wordt gezet naar 'Geen zones' als 'Zone gebieden' voorheen was geselecteerd."/>
+    <Translation ID="ProjectType" en-US="Project Type" nl-NL="Semi tijdsafhankelijk"/>    
     <Translation ID="ImportSoilProfileErrorUndefinedMaterials" en-US="'{0}' contains the undefined soil: {1}."
                  nl-NL="'{0}' bevat het ongedefinieerde materiaal: {1}."/>
     <Translation ID="ImportSoilProfileErrorReadFailed" en-US="Could not import soil profile '{0}': {1}."
@@ -848,8 +840,5 @@
                  nl-NL="Geen gegevensbronnen gedefinieerd"/>
     <Translation ID="DataHasNotBeenImportedYet"
                  en-US="Data has not been imported yet"
-                 nl-NL="Gegevens zijn nog niet geïmporteerd"/>
-    <Translation ID="ReplaceOldPipingModel"
-                 en-US="The given piping model is no longer supported and is replaced by Sellmeijer Revised (WBI)."
-                 nl-NL="Het gegeven piping model wordt niet langer ondersteund en is vervangen door Sellmeijer Revised (WBI)."/>
+                 nl-NL="Gegevens zijn nog niet geïmporteerd"/>    
 </Translations>
\ No newline at end of file
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamFailureMechanismeCalculationSpecification.cs
===================================================================
diff -u -r5705 -r6260
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamFailureMechanismeCalculationSpecification.cs	(.../DamFailureMechanismeCalculationSpecification.cs)	(revision 5705)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamFailureMechanismeCalculationSpecification.cs	(.../DamFailureMechanismeCalculationSpecification.cs)	(revision 6260)
@@ -109,13 +109,6 @@
         set
         {
             pipingModelType = value;
-            if (pipingModelType != PipingModelType.Wti2017 && pipingModelType != PipingModelType.Bligh)
-            {
-                pipingModelType = PipingModelType.Wti2017;
-                LogManager.Add(new LogMessage(LogMessageType.Warning, failureMechanismSystemType,
-                                              LocalizationManager.GetTranslatedText(GetType(), "ReplaceOldPipingModel")));
-            }
-
             if (failureMechanismSystemType == FailureMechanismSystemType.Piping)
             {
                 CalculationModel = pipingModelType;
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs
===================================================================
diff -u -r6220 -r6260
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 6220)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 6260)
@@ -299,7 +299,6 @@
                 damProjectData.VersionInfo.InitVersionInfoAfterRead();
                 
                 string damProjectVersion = damProjectVersionXmlHandler.GetDamProjectVersion();
-                UpdateVersionInfoForNonVersionedFiles(damProjectVersion);
                 damProjectVersion = GetMainVersion(damProjectVersion);
                 if (damProjectVersion != null)
                 {
@@ -312,18 +311,11 @@
                     currentProgramVersion = GetMainVersion(currentProgramVersion);
                     if (!currentProgramVersion.Equals(damProjectVersion))
                     {
-                        if (IsOutDatedFileSupported(damProjectData))
-                        {
-                            damProjectData.ClearResults();
-                        }
-                        else
-                        {
-                            ClearProject();
-                            string message =
-                                LocalizationManager.GetTranslatedText(this, "UnsupportedDamProjectFile");
-                            LogManager.Messages.Add(new LogMessage(LogMessageType.Error, DamProjectData,
-                                                                   message));
-                        }
+                        ClearProject();
+                        string message =
+                            LocalizationManager.GetTranslatedText(this, "UnsupportedDamProjectFile");
+                        LogManager.Messages.Add(new LogMessage(LogMessageType.Error, DamProjectData,
+                                                               message));
                     }
                 }
             }
@@ -333,7 +325,6 @@
         if (!damProjectData.DamProjectCalculationSpecification.DamCalculationSpecifications.Any())
         {
             damProjectData.DamProjectCalculationSpecification.DamCalculationSpecifications.Add(new DamFailureMechanismeCalculationSpecification());
-            UpdateForOlderProjects();
         }
 
         if (damProjectData != null)
@@ -510,72 +501,8 @@
 
         return fullVersion;
     }
-
-    /// <summary>Updates the current file version for non-versioned files (projects created with DAM 19.1 or earlier)
-    /// <list type="bullet">
-    /// <item>Set FileVersion to 0 (for DAM versions 18.1.3 and earlier).</item>
-    /// <item>Set FileVersion to 1 (for DAM version 19.1.1)</item>
-    /// <item>FileVersion 2 is the first versioned file (for DAM version 20.1.1)</item>
-    /// </list>
-    /// </summary>
-    private void UpdateVersionInfoForNonVersionedFiles(string fileVersion)
-    {
-        if (DamProjectData.VersionInfo.FileVersionAsRead == 0)
-        {
-            // If FileVersionAsRead = 0 then project was written with program version 19.1 or earlier.  
-            // For projects created with versions < 19.1 (e.g. 18.1.3) we keep the FileVersionAsRead on 0
-            // For projects created with version = 19.1 set the FileVersionAsRead on 1
-            if (GetMainVersion(fileVersion) == "19.1")
-            {
-                DamProjectData.VersionInfo.FileVersionAsRead = 1;
-            }
-        }
-    }
-
-    private static bool IsOutDatedFileSupported(DamProjectData projectData)
-    {
-        List<DamFailureMechanismeCalculationSpecification> calculationSpecifications = projectData.DamProjectCalculationSpecification.DamCalculationSpecifications;
-        foreach (DamFailureMechanismeCalculationSpecification calculationSpecification in calculationSpecifications)
-        {
-            if (calculationSpecification.CalculationModel is MStabModelType &&
-                (calculationSpecification.StabilityModelType != MStabModelType.UpliftVan &&
-                 calculationSpecification.StabilityModelType != MStabModelType.Bishop &&
-                 calculationSpecification.StabilityModelType != MStabModelType.BishopUpliftVan))
-            {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
+    
     /// <summary>
-    /// Updates older projects for missing data or changed data model.
-    /// </summary>
-    private void UpdateForOlderProjects()
-    {
-        UpdateMStabParametersSlipCircleDefinition();
-    }
-
-    /// <summary>
-    /// Updates the MStab parameters slip circle definition.
-    /// For older projects, when slip circle definition was not yet defined we have to provide the default values
-    /// </summary>
-    private void UpdateMStabParametersSlipCircleDefinition()
-    {
-        foreach (DamFailureMechanismeCalculationSpecification damCalculationSpecification in damProjectData.DamProjectCalculationSpecification.DamCalculationSpecifications)
-        {
-            if (damCalculationSpecification.FailureMechanismSystemType == FailureMechanismSystemType.StabilityInside)
-            {
-                if (damCalculationSpecification.IsSlipCircleDefinitionUndefined())
-                {
-                    damCalculationSpecification.ReadUserSettingsSlipCircleDefinition();
-                }
-            }
-        }
-    }
-
-    /// <summary>
     /// Copies the 2D-geometries.
     /// </summary>
     /// <param name="orgMapname">The original mapname.</param>