Index: Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/Configurations/WaveConditionsCalculationConfigurationReaderTest.cs
===================================================================
diff -u -r23b4b07a28204998a36690cb7b88b5d292c098c4 -r43c8122a62d133d269557591dceb6c825d3d8e80
--- Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/Configurations/WaveConditionsCalculationConfigurationReaderTest.cs	(.../WaveConditionsCalculationConfigurationReaderTest.cs)	(revision 23b4b07a28204998a36690cb7b88b5d292c098c4)
+++ Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/Configurations/WaveConditionsCalculationConfigurationReaderTest.cs	(.../WaveConditionsCalculationConfigurationReaderTest.cs)	(revision 43c8122a62d133d269557591dceb6c825d3d8e80)
@@ -312,14 +312,15 @@
             // Assert
             var configuration = (WaveConditionsCalculationConfiguration) readItems.Single();
 
-            AssertConfiguration(configuration);
-            Assert.AreEqual(0.1, configuration.TargetProbability);
+            AssertConfiguration(configuration, 0.1, 0.55);
         }
 
         [Test]
-        [TestCase(0)]
-        [TestCase(1)]
-        public void Read_ValidPreviousVersionConfigurationWithFullCalculation_ReturnExpectedReadCalculation(int versionNumber)
+        [TestCase(0, null, 0.5)]
+        [TestCase(1, null, 0.5)]
+        [TestCase(2, 0.1, 0.5)]
+        public void Read_ValidPreviousVersionConfigurationWithFullCalculation_ReturnExpectedReadCalculation(
+            int versionNumber, double? expectedTargetProbability, double expectedStepSize)
         {
             // Setup
             string filePath = Path.Combine(testDirectoryPath, $"version{versionNumber}ValidConfigurationFullCalculation.xml");
@@ -331,8 +332,7 @@
             // Assert
             var configuration = (WaveConditionsCalculationConfiguration) readConfigurationItems.Single();
 
-            AssertMigratedConfiguration(configuration);
-            Assert.IsNull(configuration.TargetProbability);
+            AssertConfiguration(configuration, expectedTargetProbability, expectedStepSize);
         }
 
         [Test]
@@ -364,39 +364,32 @@
             Assert.IsNull(configuration.WaveReduction.UseForeshoreProfile);
         }
 
-        private static void AssertConfiguration(WaveConditionsCalculationConfiguration configuration)
+        private static void AssertConfiguration(WaveConditionsCalculationConfiguration configuration, double? expectedTargetProbability, double expectedStepSize)
         {
             Assert.IsNotNull(configuration);
+
+            if (expectedTargetProbability.HasValue)
+            {
+                Assert.AreEqual(expectedTargetProbability, configuration.TargetProbability);
+            }
+            else
+            {
+                Assert.IsNull(configuration.TargetProbability);
+            }
+
             Assert.AreEqual("Locatie", configuration.HydraulicBoundaryLocationName);
             Assert.AreEqual(1.1, configuration.UpperBoundaryRevetment);
             Assert.AreEqual(2.2, configuration.LowerBoundaryRevetment);
             Assert.AreEqual(3.3, configuration.UpperBoundaryWaterLevels);
             Assert.AreEqual(4.4, configuration.LowerBoundaryWaterLevels);
-            Assert.AreEqual(0.55, configuration.StepSize);
+            Assert.AreEqual(expectedStepSize, configuration.StepSize);
             Assert.AreEqual("Voorlandprofiel", configuration.ForeshoreProfileId);
             Assert.AreEqual(6.6, configuration.Orientation);
             Assert.IsTrue(configuration.WaveReduction.UseBreakWater);
             Assert.AreEqual(ConfigurationBreakWaterType.Caisson, configuration.WaveReduction.BreakWaterType);
             Assert.AreEqual(7.7, configuration.WaveReduction.BreakWaterHeight);
             Assert.IsFalse(configuration.WaveReduction.UseForeshoreProfile);
         }
-        
-        private static void AssertMigratedConfiguration(WaveConditionsCalculationConfiguration configuration)
-        {
-            Assert.IsNotNull(configuration);
-            Assert.AreEqual("Locatie", configuration.HydraulicBoundaryLocationName);
-            Assert.AreEqual(1.1, configuration.UpperBoundaryRevetment);
-            Assert.AreEqual(2.2, configuration.LowerBoundaryRevetment);
-            Assert.AreEqual(3.3, configuration.UpperBoundaryWaterLevels);
-            Assert.AreEqual(4.4, configuration.LowerBoundaryWaterLevels);
-            Assert.AreEqual(0.5, configuration.StepSize);
-            Assert.AreEqual("Voorlandprofiel", configuration.ForeshoreProfileId);
-            Assert.AreEqual(5.5, configuration.Orientation);
-            Assert.IsTrue(configuration.WaveReduction.UseBreakWater);
-            Assert.AreEqual(ConfigurationBreakWaterType.Caisson, configuration.WaveReduction.BreakWaterType);
-            Assert.AreEqual(6.6, configuration.WaveReduction.BreakWaterHeight);
-            Assert.IsFalse(configuration.WaveReduction.UseForeshoreProfile);
-        }
 
         [OneTimeSetUp]
         public void OneTimeSetUp()
Index: Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version0ValidConfigurationFullCalculation.xml
===================================================================
diff -u -r50b8cb8015275ffab688c895f65f45c92bce5c38 -r43c8122a62d133d269557591dceb6c825d3d8e80
--- Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version0ValidConfigurationFullCalculation.xml	(.../version0ValidConfigurationFullCalculation.xml)	(revision 50b8cb8015275ffab688c895f65f45c92bce5c38)
+++ Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version0ValidConfigurationFullCalculation.xml	(.../version0ValidConfigurationFullCalculation.xml)	(revision 43c8122a62d133d269557591dceb6c825d3d8e80)
@@ -8,11 +8,11 @@
     <ondergrenswaterstanden>4.4</ondergrenswaterstanden>
     <stapgrootte>0.5</stapgrootte>
     <voorlandprofiel>Voorlandprofiel</voorlandprofiel>
-    <orientatie>5.5</orientatie>
+    <orientatie>6.6</orientatie>
     <golfreductie>
       <damgebruiken>true</damgebruiken>
       <damtype>caisson</damtype>
-      <damhoogte>6.6</damhoogte>
+      <damhoogte>7.7</damhoogte>
       <voorlandgebruiken>false</voorlandgebruiken>
     </golfreductie>
   </berekening>
Index: Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version1ValidConfigurationFullCalculation.xml
===================================================================
diff -u -r6670858b51e8d838a50259eaa281eb3cf76d53e1 -r43c8122a62d133d269557591dceb6c825d3d8e80
--- Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version1ValidConfigurationFullCalculation.xml	(.../version1ValidConfigurationFullCalculation.xml)	(revision 6670858b51e8d838a50259eaa281eb3cf76d53e1)
+++ Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version1ValidConfigurationFullCalculation.xml	(.../version1ValidConfigurationFullCalculation.xml)	(revision 43c8122a62d133d269557591dceb6c825d3d8e80)
@@ -8,11 +8,11 @@
     <ondergrenswaterstanden>4.4</ondergrenswaterstanden>
     <stapgrootte>0.5</stapgrootte>
     <voorlandprofiel>Voorlandprofiel</voorlandprofiel>
-    <orientatie>5.5</orientatie>
+    <orientatie>6.6</orientatie>
     <golfreductie>
       <damgebruiken>true</damgebruiken>
       <damtype>caisson</damtype>
-      <damhoogte>6.6</damhoogte>
+      <damhoogte>7.7</damhoogte>
       <voorlandgebruiken>false</voorlandgebruiken>
     </golfreductie>
   </berekening>
Index: Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version2ValidConfigurationFullCalculation.xml
===================================================================
diff -u
--- Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version2ValidConfigurationFullCalculation.xml	(revision 0)
+++ Riskeer/Revetment/test/Riskeer.Revetment.IO.Test/test-data/WaveConditionsCalculationConfigurationReader/version2ValidConfigurationFullCalculation.xml	(revision 43c8122a62d133d269557591dceb6c825d3d8e80)
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuratie versie="2">
+  <berekening naam="Berekening 1">
+    <hblocatie>Locatie</hblocatie>
+    <doelkans>0.1</doelkans>
+    <bovengrensbekleding>1.1</bovengrensbekleding>
+    <ondergrensbekleding>2.2</ondergrensbekleding>
+    <bovengrenswaterstanden>3.3</bovengrenswaterstanden>
+    <ondergrenswaterstanden>4.4</ondergrenswaterstanden>
+    <stapgrootte>0.5</stapgrootte>
+    <voorlandprofiel>Voorlandprofiel</voorlandprofiel>
+    <orientatie>6.6</orientatie>
+    <golfreductie>
+      <damgebruiken>true</damgebruiken>
+      <damtype>caisson</damtype>
+      <damhoogte>7.7</damhoogte>
+      <voorlandgebruiken>false</voorlandgebruiken>
+    </golfreductie>
+  </berekening>
+</configuratie>