diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt
index 888a4d1a0f..8790aad623 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt
@@ -2655,6 +2655,10 @@ namespace FluentAssertions.Xml
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveAttribute(System.Xml.Linq.XName expectedName, string expectedValue, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(string expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveValue(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBe(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBeEquivalentTo(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt
index ad6789705d..42d653a0ab 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt
@@ -2775,6 +2775,10 @@ namespace FluentAssertions.Xml
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveAttribute(System.Xml.Linq.XName expectedName, string expectedValue, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(string expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveValue(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBe(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBeEquivalentTo(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp2.1.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp2.1.verified.txt
index 1443863477..57aae8be07 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp2.1.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp2.1.verified.txt
@@ -2657,6 +2657,10 @@ namespace FluentAssertions.Xml
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveAttribute(System.Xml.Linq.XName expectedName, string expectedValue, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(string expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveValue(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBe(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBeEquivalentTo(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp3.0.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp3.0.verified.txt
index 98c8786af6..26349941ce 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp3.0.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netcoreapp3.0.verified.txt
@@ -2657,6 +2657,10 @@ namespace FluentAssertions.Xml
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveAttribute(System.Xml.Linq.XName expectedName, string expectedValue, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(string expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveValue(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBe(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBeEquivalentTo(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt
index b65cb784a0..8be27a83ec 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt
@@ -2607,6 +2607,10 @@ namespace FluentAssertions.Xml
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveAttribute(System.Xml.Linq.XName expectedName, string expectedValue, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(string expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveValue(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBe(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBeEquivalentTo(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt
index f40f866cf5..74ffe8844b 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt
@@ -2657,6 +2657,10 @@ namespace FluentAssertions.Xml
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveAttribute(System.Xml.Linq.XName expectedName, string expectedValue, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(string expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveElement(System.Xml.Linq.XName expected, FluentAssertions.OccurrenceConstraint occurrenceConstraint, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(string expected, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Xml.XElementAssertions, System.Xml.Linq.XElement> HaveSingleElement(System.Xml.Linq.XName expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> HaveValue(string expected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBe(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }
         public FluentAssertions.AndConstraint<FluentAssertions.Xml.XElementAssertions> NotBeEquivalentTo(System.Xml.Linq.XElement unexpected, string because = "", params object[] becauseArgs) { }