diff --git a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/ConvertHexStringToByteArrayBenchmarks.csproj b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/ConvertHexStringToByteArrayBenchmarks.csproj
index 03775a2c53..ad025981d4 100644
--- a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/ConvertHexStringToByteArrayBenchmarks.csproj
+++ b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/ConvertHexStringToByteArrayBenchmarks.csproj
@@ -1,13 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net7.0</TargetFramework>
+		<TargetFramework>net10.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
-		<PackageReference Include="CommunityToolkit.HighPerformance" Version="8.2.0" />
+		<PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\ConvertHexStringToByteArrayLibrary\ConvertHexStringToByteArrayLibrary.csproj" />
diff --git a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/Program.cs b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/Program.cs
index eb37090045..abf55851f2 100644
--- a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/Program.cs
+++ b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayBenchmark/Program.cs
@@ -1,4 +1,4 @@
 using BenchmarkDotNet.Running;
 using ConvertHexStringToByteArray.Benchmarks;
 
-BenchmarkRunner.Run<ConvertHexStringToByteArrayBenchmarks>();
\ No newline at end of file
+BenchmarkRunner.Run<ConvertHexStringToByteArrayBenchmarks>(args: args);
\ No newline at end of file
diff --git a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/ConvertHexStringToByteArrayConsole.csproj b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/ConvertHexStringToByteArrayConsole.csproj
index 794c118f68..356e2d662d 100644
--- a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/ConvertHexStringToByteArrayConsole.csproj
+++ b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/ConvertHexStringToByteArrayConsole.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net7.0</TargetFramework>
+		<TargetFramework>net10.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
diff --git a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/Program.cs b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/Program.cs
index 80523849f6..633bba955e 100644
--- a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/Program.cs
+++ b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayConsole/Program.cs
@@ -17,5 +17,9 @@
 result = ConversionHelpers.FromHexWithLookup(input);
 PrintResult(nameof(ConversionHelpers.FromHexWithLookup), result);
 
+Span<byte> buffer = stackalloc byte[8];
+var status = Convert.FromHexString("ABC", buffer, out var charsConsumed, out var bytesWritten);
+Console.WriteLine($"odd: {status} consumed={charsConsumed} written={bytesWritten}");
+
 static void PrintResult(string method, IEnumerable<byte> input) =>
     Console.WriteLine($"{method}: \t[{string.Join(',', input)}]");
\ No newline at end of file
diff --git a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConversionHelpers.cs b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConversionHelpers.cs
index 01b78950f0..9f47647461 100644
--- a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConversionHelpers.cs
+++ b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConversionHelpers.cs
@@ -20,7 +20,7 @@ public static byte[] FromHexWithModularArithmetic(ReadOnlySpan<char> input)
 
         var dest = new byte[input.Length >> 1];
         for (int i = 0, j = 0; j < dest.Length; j++)
-            dest[j] = (byte)((PerformModularArithmeticCalculation(input[i++]) << 4) +
+            dest[j] = (byte) ((PerformModularArithmeticCalculation(input[i++]) << 4) +
                 PerformModularArithmeticCalculation(input[i++]));
 
         return dest;
@@ -53,7 +53,8 @@ public static unsafe byte[] FromHexWithSwitchComputation(ReadOnlySpan<char> inpu
         {
             var destPtr = d;
             var srcPtr = s;
-            while (*srcPtr != 0)
+            var srcEnd = s + input.Length;
+            while (srcPtr < srcEnd)
             {
                 var result = (byte) (ComputeNibbleFromHexChar(*srcPtr++) << 4);
                 result |= ComputeNibbleFromHexChar(*srcPtr++);
@@ -89,7 +90,8 @@ public static unsafe byte[] FromHexWithBitManipulation(ReadOnlySpan<char> input)
         {
             var sPtr = &srcPtr[0];
             var dPtr = &destPtr[0];
-            while (*sPtr != 0)
+            var sEnd = sPtr + input.Length;
+            while (sPtr < sEnd)
             {
                 var hi = PerformBitManipulation(*sPtr++);
                 var lo = PerformBitManipulation(*sPtr++) & 0x0F;
@@ -127,14 +129,15 @@ public static unsafe byte[] FromHexWithLookup(ReadOnlySpan<char> input)
         {
             var s = &inputRef[0];
             var d = destRef;
+            var end = s + input.Length;
 
-            while (*s != 0)
+            while (s < end)
             {
                 byte lowValue;
 
                 if (*s > 102 || (*d = hiRef[*s++]) == 255 ||
-                    *s > 102 || (lowValue = lowRef[*s++]) == 255 )
-                    throw new ArgumentException($"Invalid character found in string: '{*s}'", nameof(input));
+                    *s > 102 || (lowValue = lowRef[*s++]) == 255)
+                    throw new ArgumentException("Input contains a non-hex character", nameof(input));
 
                 *d++ += lowValue;
             }
diff --git a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConvertHexStringToByteArrayLibrary.csproj b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConvertHexStringToByteArrayLibrary.csproj
index d3971e43df..8186353f28 100644
--- a/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConvertHexStringToByteArrayLibrary.csproj
+++ b/collections-arrays/ConvertHexStringToByteArray/src/ConvertHexStringToByteArrayLibrary/ConvertHexStringToByteArrayLibrary.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFramework>net7.0</TargetFramework>
+		<TargetFramework>net10.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
diff --git a/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexByteArrayTests.cs b/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexByteArrayTests.cs
index 8be64b5f5a..f24640fa4b 100644
--- a/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexByteArrayTests.cs
+++ b/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexByteArrayTests.cs
@@ -142,4 +142,16 @@ public void GivenLookupMethod_WhenInvalidHexDataIsProvided_ThenThrowsArgumentExc
     {
         Assert.Throws<ArgumentException>(() => ConversionHelpers.FromHexWithLookup(source));
     }
+    [Fact]
+    public void GivenSliceOfLongerString_WhenConverting_ThenEveryMethodStopsAtTheEndOfTheSlice()
+    {
+        var slice = "DEADZZ".AsSpan(0, 4);
+        var expected = new byte[] {222, 173};
+
+        Assert.Equal(expected, ConversionHelpers.FromHexWithModularArithmetic(slice));
+        Assert.Equal(expected, ConversionHelpers.FromHexWithSwitchComputation(slice));
+        Assert.Equal(expected, ConversionHelpers.FromHexWithBitManipulation(slice));
+        Assert.Equal(expected, ConversionHelpers.FromHexWithConvert(slice));
+        Assert.Equal(expected, ConversionHelpers.FromHexWithLookup(slice));
+    }
 }
\ No newline at end of file
diff --git a/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexStringToByteArrayUnitTests.csproj b/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexStringToByteArrayUnitTests.csproj
index 1a5e6ef094..611898a078 100644
--- a/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexStringToByteArrayUnitTests.csproj
+++ b/collections-arrays/ConvertHexStringToByteArray/test/ConvertHexStringToByteArrayUnitTests/ConvertHexStringToByteArrayUnitTests.csproj
@@ -1,19 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFramework>net7.0</TargetFramework>
+		<TargetFramework>net10.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
 		<IsPackable>false</IsPackable>
 		<IsTestProject>true</IsTestProject>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
-		<PackageReference Include="xunit" Version="2.4.2" />
-		<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
+		<PackageReference Include="xunit" Version="2.9.3" />
+		<PackageReference Include="xunit.runner.visualstudio" Version="4.0.1">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 			<PrivateAssets>all</PrivateAssets>
 		</PackageReference>
-		<PackageReference Include="coverlet.collector" Version="3.2.0">
+		<PackageReference Include="coverlet.collector" Version="10.1.0">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 			<PrivateAssets>all</PrivateAssets>
 		</PackageReference>