diff --git a/Generator/Generator.csproj b/Generator/Generator.csproj
index 1d22a36..af31fef 100644
--- a/Generator/Generator.csproj
+++ b/Generator/Generator.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/OneOf.Extended/OneOf.Extended.csproj b/OneOf.Extended/OneOf.Extended.csproj
index 5dc1f77..9e6bfed 100644
--- a/OneOf.Extended/OneOf.Extended.csproj
+++ b/OneOf.Extended/OneOf.Extended.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net35;net451;netstandard1.3</TargetFrameworks>
+    <TargetFrameworks>net35;net451;netstandard1.3;netstandard2.0;netstandard2.1</TargetFrameworks>
     <Authors>Harry McIntyre</Authors>
     <Title>OneOf - Easy Discriminated Unions for c#</Title>
     <Company>Harry McIntyre</Company>
@@ -24,7 +24,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />
   </ItemGroup>
 
 
diff --git a/OneOf.FSharp/OneOf.FSharp.fsproj b/OneOf.FSharp/OneOf.FSharp.fsproj
index 7ff52ef..75eca06 100644
--- a/OneOf.FSharp/OneOf.FSharp.fsproj
+++ b/OneOf.FSharp/OneOf.FSharp.fsproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <AssemblyName>OneOf.FSharp</AssemblyName>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>netstandard2.0;netstandard2.1</TargetFrameworks>
     <DebugType>portable</DebugType>
     <Authors>Harry McIntyre</Authors>
     <Title>OneOf - Easy Discriminated Unions for c#</Title>
diff --git a/OneOf.SourceGenerator.AnalyzerTests/OneOf.SourceGenerator.AnalyzerTests.csproj b/OneOf.SourceGenerator.AnalyzerTests/OneOf.SourceGenerator.AnalyzerTests.csproj
index 0f80292..8fa6bab 100644
--- a/OneOf.SourceGenerator.AnalyzerTests/OneOf.SourceGenerator.AnalyzerTests.csproj
+++ b/OneOf.SourceGenerator.AnalyzerTests/OneOf.SourceGenerator.AnalyzerTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
 
     <IsPackable>false</IsPackable>
@@ -10,13 +10,13 @@
   <ItemGroup>
 	  <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.XUnit" Version="1.1.1" />
 	  <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.3.1" />
-	  <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+	  <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="xunit" Version="2.6.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="3.1.2">
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
diff --git a/OneOf.SourceGenerator.Tests/OneOf.SourceGenerator.Tests.csproj b/OneOf.SourceGenerator.Tests/OneOf.SourceGenerator.Tests.csproj
index 0b12498..663ea79 100644
--- a/OneOf.SourceGenerator.Tests/OneOf.SourceGenerator.Tests.csproj
+++ b/OneOf.SourceGenerator.Tests/OneOf.SourceGenerator.Tests.csproj
@@ -1,19 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="xunit" Version="2.6.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="3.0.3">
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
diff --git a/OneOf.Tests/OneOf.Tests.csproj b/OneOf.Tests/OneOf.Tests.csproj
index 4598ccc..bd0c024 100644
--- a/OneOf.Tests/OneOf.Tests.csproj
+++ b/OneOf.Tests/OneOf.Tests.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageReference Include="nunit" Version="3.12.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
diff --git a/OneOf/OneOf.csproj b/OneOf/OneOf.csproj
index 4bd8b36..086e1e6 100644
--- a/OneOf/OneOf.csproj
+++ b/OneOf/OneOf.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net35;net45;netstandard1.3;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net35;net45;netstandard1.3;netstandard2.0;netstandard2.1</TargetFrameworks>
     <Authors>Harry McIntyre</Authors>
     <Title>OneOf - Easy Discriminated Unions for c#</Title>
     <Company>Harry McIntyre</Company>
@@ -18,11 +18,11 @@
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
 
-    <LangVersion>9.0</LangVersion>
+    <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />
   </ItemGroup>
 </Project>
diff --git a/delete-bin-obj-folders.bat b/delete-bin-obj-folders.bat
new file mode 100644
index 0000000..026e4c7
--- /dev/null
+++ b/delete-bin-obj-folders.bat
@@ -0,0 +1,20 @@
+@ECHO off
+cls
+
+ECHO Deleting all BIN and OBJ folders...
+ECHO.
+
+FOR /d /r . %%d in (bin,obj,LocalNuget) DO (
+	IF EXIST "%%d" (		 	 
+		ECHO %%d | FIND /I "\node_modules\" > Nul && ( 
+			ECHO.Skipping: %%d
+		) || (
+			ECHO.Deleting: %%d
+			rd /s/q "%%d"
+		)
+	)
+)
+
+ECHO.
+ECHO.BIN and OBJ folders have been successfully deleted. Press any key to exit.
+pause > nul
\ No newline at end of file