diff --git a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CommaSeparatedStringUnitTest.csproj b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CommaSeparatedStringUnitTest.csproj
index 9f77f5f615..e9ba1e1108 100644
--- a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CommaSeparatedStringUnitTest.csproj
+++ b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CommaSeparatedStringUnitTest.csproj
@@ -1,20 +1,20 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="3.1.0">
+    <PackageReference Include="coverlet.collector" Version="10.0.1">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
diff --git a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CreateCommaSeparatedStringFromListOfStringUnitTest.cs b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CreateCommaSeparatedStringFromListOfStringUnitTest.cs
index 14fc412b2a..008829ca21 100644
--- a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CreateCommaSeparatedStringFromListOfStringUnitTest.cs
+++ b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CommaSeparatedStringUnitTest/CreateCommaSeparatedStringFromListOfStringUnitTest.cs
@@ -2,35 +2,48 @@
 using System.Linq;
 using Xunit;
 
-namespace CommaSeparatedStringUnitTest
+namespace CommaSeparatedStringUnitTest;
+
+public class CreateCommaSeparatedStringFromListOfStringUnitTest
 {
-    public class CreateCommaSeparatedStringFromListOfStringUnitTest
+    private readonly List<string> _fruitList =
+    [
+        "apple",
+        "orange",
+        "pineapple",
+        "grape",
+        "coconut"
+    ];
+
+    [Fact]
+    public void GivenStringJoin_WhenListOfStringIsPassed_ThenReturnCommaSeparatedString()
+    {
+        Assert.Equal("apple,orange,pineapple,grape,coconut", string.Join(",", _fruitList));
+    }
+
+    [Fact]
+    public void GivenStringJoin_WhenListOfStringIsPassedAndFiltered_ThenReturnCommaSeparatedStringOfFilteredOutcome()
+    {
+        Assert.Equal("apple,pineapple", string.Join(",", _fruitList.Where(fruit => fruit.Contains("apple"))));
+    }
+
+    [Fact]
+    public void GivenStringJoin_WhenArrayOfStringIsPassedWithIndexSpecified_ThenReturnCommaSeparatedStringOfIndicatedIndexes()
+    {
+        Assert.Equal("pineapple,grape,coconut", string.Join(",", _fruitList.ToArray(), 2, 3));
+    }
+
+    [Fact]
+    public void GivenStringJoin_WhenListOfIntIsPassed_ThenReturnCommaSeparatedString()
+    {
+        var numbers = new List<int> { 1, 2, 3 };
+
+        Assert.Equal("1,2,3", string.Join(",", numbers));
+    }
+
+    [Fact]
+    public void GivenStringJoin_WhenCharSeparatorIsUsed_ThenReturnCommaSeparatedString()
     {
-        private readonly List<string> _fruitList = new List<string>()
-        {
-            "apple",
-            "orange",
-            "pineapple",
-            "grape",
-            "coconut"
-        };
-
-        [Fact]
-        public void GivenStringJoin_WhenListOfStringIsPassed_ThenReturnCommaSeparatedString()
-        {
-            Assert.Equal("apple,orange,pineapple,grape,coconut", string.Join(",", _fruitList));
-        }
-
-        [Fact]
-        public void GivenStringJoin_WhenListOfStringIsPassedAndFiltered_ThenReturnCommaSeparatedStringOfFilteredOutcome()
-        {
-            Assert.Equal("apple,pineapple", string.Join(",", _fruitList.Where(fruit => fruit.Contains("apple"))));
-        }
-
-        [Fact]
-        public void GivenStringJoin_WhenArrayOfStringIsPassedWithIndexSpecified_ThenReturnCommaSeparatedStringOfIndicatedIndexes()
-        {
-            Assert.Equal("pineapple,grape,coconut", string.Join(",", _fruitList.ToArray(), 2, 3));
-        }
+        Assert.Equal("apple,orange,pineapple,grape,coconut", string.Join(',', _fruitList));
     }
-}
\ No newline at end of file
+}
diff --git a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString.csproj b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString.csproj
index 74abf5c976..dfb40caafc 100644
--- a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString.csproj
+++ b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/Program.cs b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/Program.cs
index 52b6528d46..f14d922427 100644
--- a/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/Program.cs
+++ b/strings-csharp/CreateCommaSeparatedStringFromListOfString/CreateCommaSeparatedStringFromListOfString/Program.cs
@@ -1,5 +1,3 @@
-// See https://aka.ms/new-console-template for more information
-
 var fruitList = new List<string>
 {
     "apple",
@@ -15,8 +13,17 @@
 
 var trimmedFruits = string.Join(",", fruitList.ToArray(), 2, 3);
 
+var numbers = new List<int> { 1, 2, 3 };
+var numberList = string.Join(",", numbers);
+
+var fruitsWithCharSeparator = string.Join(',', fruitList);
+
 Console.WriteLine($"Fruits: {fruits}");
 
 Console.WriteLine($"Filtered Fruit: {filterFruit}");
 
-Console.WriteLine($"Trimmed Fruits: {trimmedFruits}");
\ No newline at end of file
+Console.WriteLine($"Trimmed Fruits: {trimmedFruits}");
+
+Console.WriteLine($"Numbers: {numberList}");
+
+Console.WriteLine($"Fruits With Char Separator: {fruitsWithCharSeparator}");