diff --git a/build/.vscode/launch.json b/build/.vscode/launch.json
index 782b175..4a0fd33 100644
--- a/build/.vscode/launch.json
+++ b/build/.vscode/launch.json
@@ -8,7 +8,7 @@
       "program": "dotnet",
       "args": [
         "exec",
-        "/Users/bernhardrichter/.dotnet/tools/.store/dotnet-script/0.28.0/dotnet-script/0.28.0/tools/netcoreapp2.1/any/dotnet-script.dll",
+        "/Users/bernhardrichter/.dotnet/tools/.store/dotnet-script/0.29.1/dotnet-script/0.29.1/tools/netcoreapp2.1/any/dotnet-script.dll",
         "${file}"
       ],
       "cwd": "${workspaceRoot}",
diff --git a/build/BuildContext.csx b/build/BuildContext.csx
index c2a0835..48d370a 100644
--- a/build/BuildContext.csx
+++ b/build/BuildContext.csx
@@ -1,10 +1,12 @@
-#load "nuget:Dotnet.Build, 0.4.0"
+#load "nuget:Dotnet.Build, 0.5.0"
 using static FileUtils;
 using System.Xml.Linq;
 
 var owner = "seesharper";
 var projectName = "LightInject.Interception";
 var root = FileUtils.GetScriptFolder();
+
+var repoFolder = Path.Combine(root, "..");
 var solutionFolder = Path.Combine(root, "..", "src");
 var projectFolder = Path.Combine(root, "..", "src", "LightInject.Interception");
 
diff --git a/build/build.csx b/build/build.csx
index f5dc994..cc1b6c5 100644
--- a/build/build.csx
+++ b/build/build.csx
@@ -1,49 +1,43 @@
-#load "nuget:Dotnet.Build, 0.4.0"
-#load "nuget:dotnet-steps, 0.0.1"
+#load "nuget:Dotnet.Build, 0.5.0"
 #load "nuget:github-changelog, 0.1.5"
+#load "nuget:dotnet-steps, 0.0.1"
 #load "BuildContext.csx"
-using static FileUtils;
-using static Internalizer;
-using static xUnit;
-using static DotNet;
+
 using static ChangeLog;
 using static ReleaseManagement;
 
-
 [StepDescription("Runs the tests with test coverage")]
 Step testcoverage = () =>
 {
-    DotNet.TestWithCodeCoverage(projectName, testProjectFolder, coverageArtifactsFolder, targetFramework: "netcoreapp2.0");
+    DotNet.TestWithCodeCoverage(projectName, testProjectFolder, coverageArtifactsFolder, targetFramework: "netcoreapp2.0", threshold: 90);
 };
 
+[StepDescription("Runs all the tests for all target frameworks")]
+Step test = () =>
+{
+    DotNet.Test(testProjectFolder);
+};
 
-await StepRunner.Execute(Args);
-return 0;
-
-Build(projectFolder);
-Test(testProjectFolder);
-AnalyzeCodeCoverage(pathToTestAssembly, $"+[{projectName}]*");
-Pack(projectFolder, nuGetArtifactsFolder);
+[StepDescription("Creates the NuGet packages")]
+Step pack = () =>
+{
+    test();
+    testcoverage();
+    DotNet.Pack(projectFolder, nuGetArtifactsFolder, Git.Default.GetCurrentShortCommitHash());
+    NuGet.CreateSourcePackage(repoFolder, projectName, nuGetArtifactsFolder);
+};
 
-using (var sourceBuildFolder = new DisposableFolder())
+[DefaultStep]
+[StepDescription("Deploys packages if we are on a tag commit in a secure environment.")]
+AsyncStep deploy = async () =>
 {
-    string pathToSourceProjectFolder = Path.Combine(sourceBuildFolder.Path, "LightInject.Interception");
-    Copy(solutionFolder, sourceBuildFolder.Path, new[] { ".vs", "obj" });
-    Internalize(pathToSourceProjectFolder, exceptTheseTypes);
-    DotNet.Build(Path.Combine(sourceBuildFolder.Path, "LightInject.Interception"));
-    using (var nugetPackFolder = new DisposableFolder())
+    pack();
+    if (!BuildEnvironment.IsSecure)
     {
-        var contentFolder = CreateDirectory(nugetPackFolder.Path, "content", "netstandard1.1", "LightInject.Interception");
-        Copy("LightInject.Interception.Source.nuspec", nugetPackFolder.Path);
-        string pathToSourceFileTemplate = Path.Combine(contentFolder, "LightInject.Interception.cs.pp");
-        Copy(Path.Combine(pathToSourceProjectFolder, "LightInject.Interception.cs"), pathToSourceFileTemplate);
-        FileUtils.ReplaceInFile(@"namespace \S*", $"namespace $rootnamespace$.{projectName}", pathToSourceFileTemplate);
-        NuGet.Pack(nugetPackFolder.Path, nuGetArtifactsFolder, version);
+        Logger.Log("Deployment can only be done in a secure environment");
+        return;
     }
-}
 
-if (BuildEnvironment.IsSecure)
-{
     await CreateReleaseNotes();
 
     if (Git.Default.IsTagCommit())
@@ -53,7 +47,12 @@ if (BuildEnvironment.IsSecure)
         .CreateRelease(Git.Default.GetLatestTag(), pathToReleaseNotes, Array.Empty<ReleaseAsset>());
         NuGet.TryPush(nuGetArtifactsFolder);
     }
-}
+};
+
+
+await StepRunner.Execute(Args);
+return 0;
+
 
 private async Task CreateReleaseNotes()
 {
@@ -63,5 +62,5 @@ private async Task CreateReleaseNotes()
     {
         generator = generator.IncludeUnreleased();
     }
-    await generator.Generate(pathToReleaseNotes);
-}
\ No newline at end of file
+    await generator.Generate(pathToReleaseNotes, FormattingOptions.Default.WithPullRequestBody());
+}
diff --git a/src/LightInject.Interception/LightInject.Interception.cs b/src/LightInject.Interception/LightInject.Interception.cs
index b8d8cbe..1111bbd 100644
--- a/src/LightInject.Interception/LightInject.Interception.cs
+++ b/src/LightInject.Interception/LightInject.Interception.cs
@@ -183,6 +183,7 @@ namespace LightInject.Interception
     /// <summary>
     /// Implemented by all proxy types.
     /// </summary>
+    [NoInternalize]
     public interface IProxy
     {
         /// <summary>
@@ -194,6 +195,7 @@ public interface IProxy
     /// <summary>
     /// Represents a class that contains detailed information about the method being invoked.
     /// </summary>
+    [NoInternalize]
     public interface IInvocationInfo
     {
         /// <summary>
@@ -228,6 +230,7 @@ public interface IInvocationInfo
     /// Represents a class that is capable of creating a delegate used to invoke
     /// a method without using late-bound invocation.
     /// </summary>
+    [NoInternalize]
     public interface IMethodBuilder
     {
         /// <summary>
@@ -241,6 +244,7 @@ public interface IMethodBuilder
     /// <summary>
     /// Represents the skeleton of a dynamic method.
     /// </summary>
+    [NoInternalize]
     public interface IDynamicMethodSkeleton
     {
         /// <summary>
@@ -259,6 +263,7 @@ public interface IDynamicMethodSkeleton
     /// <summary>
     /// Represents a class that is capable of creating a proxy <see cref="Type"/>.
     /// </summary>
+    [NoInternalize]
     public interface IProxyBuilder
     {
         /// <summary>
@@ -273,6 +278,7 @@ public interface IProxyBuilder
     /// <summary>
     /// Represents a class that intercepts method calls.
     /// </summary>
+    [NoInternalize]
     public interface IInterceptor
     {
         /// <summary>
@@ -326,6 +332,7 @@ public interface IMethodSelector
     /// A factory class used to create a <see cref="CompositeInterceptor"/> if the target method has
     /// multiple interceptors.
     /// </summary>
+    [NoInternalize]
     public static class MethodInterceptorFactory
     {
         /// <summary>
@@ -348,6 +355,7 @@ public static Lazy<IInterceptor> CreateMethodInterceptor(Lazy<IInterceptor>[] in
     /// <summary>
     /// Contains information about the target method being intercepted.
     /// </summary>
+    [NoInternalize]
     public class TargetMethodInfo
     {
         /// <summary>
@@ -386,6 +394,7 @@ public TargetMethodInfo(MethodInfo method, MethodInfo methodInvocationTarget)
     /// <summary>
     /// Contains information about the open generic target method being intercepted.
     /// </summary>
+    [NoInternalize]
     public class OpenGenericTargetMethodInfo
     {
         private readonly MethodInfo openGenericMethod;
@@ -458,6 +467,7 @@ private TargetMethodInfo CreateTargetMethodInfo(Type[] types)
     /// A class that is capable of creating a delegate used to invoke
     /// a method without using late-bound invocation.
     /// </summary>
+    [NoInternalize]
     public class DynamicMethodBuilder : IMethodBuilder
     {
         private readonly Func<IDynamicMethodSkeleton> methodSkeletonFactory;
@@ -610,6 +620,7 @@ public Func<object, object[], object> CreateDelegate()
     /// An <see cref="IMethodBuilder"/> cache decorator that ensures that
     /// for a given <see cref="MethodInfo"/>, only a single dynamic method is created.
     /// </summary>
+    [NoInternalize]
     public class CachedMethodBuilder : IMethodBuilder
     {
         private readonly IMethodBuilder methodBuilder;
@@ -641,6 +652,7 @@ public Func<object, object[], object> GetDelegate(MethodInfo targetMethod)
     /// An implementation of the <see cref="IInvocationInfo"/> interface that forwards
     /// method calls the actual target.
     /// </summary>
+    [NoInternalize]
     public class TargetInvocationInfo : IInvocationInfo
     {
         private readonly TargetMethodInfo targetMethodInfo;
@@ -719,6 +731,7 @@ public object Proceed()
     /// An implementation of the <see cref="IInvocationInfo"/> interface that forwards
     /// method calls to the next <see cref="IInterceptor"/> in the interceptor chain.
     /// </summary>
+    [NoInternalize]
     public class InterceptorInvocationInfo : IInvocationInfo
     {
         private readonly IInvocationInfo nextInvocationInfo;
@@ -793,6 +806,7 @@ public object Proceed()
     /// A composite <see cref="IInterceptor"/> that is responsible for
     /// passing the <see cref="IInvocationInfo"/> down the interceptor chain.
     /// </summary>
+    [NoInternalize]
     public class CompositeInterceptor : IInterceptor
     {
         private readonly Lazy<IInterceptor>[] interceptors;
@@ -827,6 +841,7 @@ public object Invoke(IInvocationInfo invocationInfo)
     /// <summary>
     /// Contains information about a registered <see cref="IInterceptor"/>.
     /// </summary>
+    [NoInternalize]
     public class InterceptorInfo
     {
         /// <summary>
@@ -848,6 +863,7 @@ public class InterceptorInfo
     /// <summary>
     /// Represents the definition of a proxy type.
     /// </summary>
+    [NoInternalize]
     public class ProxyDefinition
     {
         private readonly ICollection<InterceptorInfo> interceptors = new Collection<InterceptorInfo>();
@@ -2482,4 +2498,8 @@ public class ExcludeFromCodeCoverageAttribute : Attribute
 
     }
 #endif
+    internal class NoInternalize : Attribute
+    {
+
+    }
 }
diff --git a/src/LightInject.Interception/LightInject.Interception.csproj b/src/LightInject.Interception/LightInject.Interception.csproj
index e34b57f..39d4fd6 100644
--- a/src/LightInject.Interception/LightInject.Interception.csproj
+++ b/src/LightInject.Interception/LightInject.Interception.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net46;netstandard1.1;netstandard2.0</TargetFrameworks>
     <Version>2.0.3</Version>
     <Authors>Bernhard Richter</Authors>
-    <PackageProjectUrl>http//www.lightinject.net</PackageProjectUrl>
+    <PackageProjectUrl>http://www.lightinject.net</PackageProjectUrl>
     <RepositoryType>git</RepositoryType>
     <RepositoryUrl>https://github.com/seesharper/LightInject.Interception</RepositoryUrl>
     <PackageLicenseUrl>http://opensource.org/licenses/MIT</PackageLicenseUrl>