diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/LayoutRules/SA1516CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/LayoutRules/SA1516CSharp9UnitTests.cs
index 1bbf059ed..e88bd35f4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/LayoutRules/SA1516CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/LayoutRules/SA1516CSharp9UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.LayoutRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.LayoutRules;
     using Xunit;
@@ -36,7 +35,7 @@ public async Task TestUsingAndGlobalStatementSpacingInTopLevelProgramAsync()
 return 0;
 ";
 
-            var test = new CSharpTest(LanguageVersion.CSharp9)
+            var test = new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestState =
@@ -63,7 +62,7 @@ public async Task TestGlobalStatementSpacingInTopLevelProgramAsync()
 return i;
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestState =
@@ -90,7 +89,7 @@ public async Task TestGlobalStatementAndRecordSpacingInTopLevelProgramAsync()
 record A();
 ";
 
-            var test = new CSharpTest(LanguageVersion.CSharp9)
+            var test = new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestState =
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1119CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1119CSharp9UnitTests.cs
index 4b172e9ed..9dcd5059f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1119CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1119CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.MaintainabilityRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.MaintainabilityRules;
     using Xunit;
@@ -35,7 +34,7 @@ public object TestMethod(Foo n, int a)
 }
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
@@ -71,7 +70,7 @@ public object TestMethod(Foo n, int a)
 }
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
@@ -113,7 +112,7 @@ public void TestMethod(Foo n, int a)
 }
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
@@ -147,7 +146,7 @@ public object TestMethod(Foo n, int a)
 }}
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1413CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1413CSharp9UnitTests.cs
index 2d5443c2b..d85368205 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1413CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1413CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.MaintainabilityRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.MaintainabilityRules;
     using Xunit;
@@ -64,7 +63,7 @@ void M()
 }
 ";
 
-            await VerifyCSharpFixAsync(LanguageVersion.CSharp9, testCode, DiagnosticResult.EmptyDiagnosticResults, fixedCode, CancellationToken.None).ConfigureAwait(false);
+            await VerifyCSharpFixAsync(testCode, DiagnosticResult.EmptyDiagnosticResults, fixedCode, CancellationToken.None).ConfigureAwait(false);
         }
     }
 }
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1300CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1300CSharp9UnitTests.cs
index 47e80b9c1..be42e3823 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1300CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1300CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.NamingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.NamingRules;
     using StyleCop.Analyzers.Test.Verifiers;
@@ -41,7 +40,7 @@ public R(int a, int b)
 }
 ";
 
-            var test = new CSharpTest(LanguageVersion.CSharp9)
+            var test = new CSharpTest()
             {
                 ReferenceAssemblies = GenericAnalyzerTest.ReferenceAssembliesNet50,
                 TestCode = testCode,
@@ -75,7 +74,7 @@ public R(int a, int b)
 }
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = GenericAnalyzerTest.ReferenceAssembliesNet50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1313CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1313CSharp9UnitTests.cs
index 6e598c92b..96a628d23 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1313CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/NamingRules/SA1313CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.NamingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using StyleCop.Analyzers.Test.CSharp8.NamingRules;
     using StyleCop.Analyzers.Test.Verifiers;
     using Xunit;
@@ -42,7 +41,7 @@ public R(int a, int b)
 }
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = GenericAnalyzerTest.ReferenceAssembliesNet50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9OutsideNamespaceUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9OutsideNamespaceUnitTests.cs
index f35d5c329..5c778f5e2 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9OutsideNamespaceUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9OutsideNamespaceUnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.OrderingRules;
     using Xunit;
@@ -33,7 +32,7 @@ public async Task TestValidUsingStatementsInTopLevelProgramAsync()
 return 0;
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestState =
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9PreserveUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9PreserveUnitTests.cs
index d6b3d17ab..8acfb25de 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9PreserveUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9PreserveUnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.OrderingRules;
     using Xunit;
@@ -33,7 +32,7 @@ public async Task TestValidUsingStatementsInTopLevelProgramAsync()
 return 0;
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestState =
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9UnitTests.cs
index 87cc07a46..eb81ab3bc 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/OrderingRules/SA1200CSharp9UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.OrderingRules;
     using Xunit;
@@ -33,7 +32,7 @@ public async Task TestValidUsingStatementsInTopLevelProgramAsync()
 return 0;
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestState =
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1101CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1101CSharp9UnitTests.cs
index 93d44988b..8e29d86dd 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1101CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1101CSharp9UnitTests.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.ReadabilityRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using StyleCop.Analyzers.Test.CSharp8.ReadabilityRules;
     using StyleCop.Analyzers.Test.Verifiers;
     using Xunit;
@@ -32,7 +31,7 @@ public A UpdateA(A value)
     }
 }";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = GenericAnalyzerTest.ReferenceAssembliesNet50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1106CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1106CSharp9UnitTests.cs
index ff0953eae..ad65e7e6c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1106CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1106CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.ReadabilityRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.ReadabilityRules;
     using Xunit;
@@ -23,7 +22,7 @@ public async Task TestNoDiagnosticForEmptyRecordDeclarationAsync()
         {
             var testCode = @"public record Result(int Value);";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1118CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1118CSharp9UnitTests.cs
index 794c4d027..ded3a7f7b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1118CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/ReadabilityRules/SA1118CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.ReadabilityRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.ReadabilityRules;
     using Xunit;
@@ -39,7 +38,7 @@ r with
     }
 }";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
@@ -71,7 +70,7 @@ r with
     }
 }";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
@@ -103,7 +102,7 @@ public void MyCallingFunction(int index, MyObject myObject)
         }
     }";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1000CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1000CSharp9UnitTests.cs
index 948c0129a..37485b907 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1000CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1000CSharp9UnitTests.cs
@@ -6,7 +6,6 @@
 namespace StyleCop.Analyzers.Test.CSharp9.SpacingRules
 {
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.SpacingRules;
     using Xunit;
@@ -18,7 +17,7 @@ public async Task TestTargetTypedNewAsync()
         {
             string statementWithoutSpace = "int a = new();";
 
-            await this.TestKeywordStatementAsync(statementWithoutSpace, DiagnosticResult.EmptyDiagnosticResults, statementWithoutSpace, languageVersion: LanguageVersion.CSharp9).ConfigureAwait(false);
+            await this.TestKeywordStatementAsync(statementWithoutSpace, DiagnosticResult.EmptyDiagnosticResults, statementWithoutSpace).ConfigureAwait(false);
         }
     }
 }
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1008CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1008CSharp9UnitTests.cs
index 038c0d056..76cbe2dd1 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1008CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1008CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.SpacingRules;
     using Xunit;
@@ -43,7 +42,7 @@ void Method(int b)
     }
 }";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 ExpectedDiagnostics =
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1009CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1009CSharp9UnitTests.cs
index 64b6800a7..2649408d7 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1009CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1009CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.SpacingRules;
     using Xunit;
@@ -33,7 +32,7 @@ public record MyQuery1() : BaseQuery<object>;
 public record MyQuery2() : BaseQuery<object>;
 public record MyQuery3() : BaseQuery<object>;";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 ExpectedDiagnostics =
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1023CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1023CSharp9UnitTests.cs
index b872ec71f..3acea4d49 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1023CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1023CSharp9UnitTests.cs
@@ -7,8 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
-    using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.SpacingRules;
     using StyleCop.Analyzers.Test.Verifiers;
     using Xunit;
@@ -42,7 +40,7 @@ public async Task TestFunctionPointerParameterInvalidSpacingAsync()
                 Diagnostic(DescriptorNotFollowed).WithLocation(1),
             };
 
-            await VerifyCSharpFixAsync(LanguageVersion.CSharp9, testCode, expected, fixedCode, CancellationToken.None).ConfigureAwait(false);
+            await VerifyCSharpFixAsync(testCode, expected, fixedCode, CancellationToken.None).ConfigureAwait(false);
         }
 
         [Fact]
@@ -70,7 +68,7 @@ public async Task TestFunctionPointerTypeInvalidSpacingAsync()
 }
 ";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = GenericAnalyzerTest.ReferenceAssembliesNet50,
                 TestCode = testCode,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1024CSharp9UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1024CSharp9UnitTests.cs
index 46b27d434..2f328bd67 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1024CSharp9UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/SpacingRules/SA1024CSharp9UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp9.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.SpacingRules;
     using Xunit;
@@ -33,7 +32,7 @@ public record MyQuery1() : BaseQuery<object>;
 public record MyQuery2() : BaseQuery<object>;
 public record MyQuery3() : BaseQuery<object>;";
 
-            await new CSharpTest(LanguageVersion.CSharp9)
+            await new CSharpTest()
             {
                 ReferenceAssemblies = ReferenceAssemblies.Net.Net50,
                 ExpectedDiagnostics =