diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 66db398..075cd59 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -5,8 +5,10 @@
     <IsTestProject>$(MSBuildProjectName.Contains('Tests'))</IsTestProject>
     <DebugType>portable</DebugType>
     <Authors>Glenn Watson</Authors>
-    <Copyright>Copyright (c) 2021 ReactiveUI Association Incorporated</Copyright>
+    <Company>ReactiveUI Association Inc</Company>
+    <Copyright>Copyright © 2020 - $([System.DateTime]::Now.ToString(yyyy)) $(Company)</Copyright>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
+    <PackageReadmeFile>docs\README.md</PackageReadmeFile>
     <PackageProjectUrl>https://github.com/reactivemarbles/RoslynHelpers</PackageProjectUrl>
     <PackageDescription>Helpers with the Roslyn system, useful for unit tests.</PackageDescription>
     <Owners>glennawatson</Owners>
@@ -34,6 +36,7 @@
   <ItemGroup>
     <None Include="$(MSBuildThisFileDirectory)..\LICENSE" Pack="true" PackagePath="LICENSE" />
     <None Include="$(MSBuildThisFileDirectory)..\images\logo.png" Pack="true" PackagePath="" />
+    <None Include="$(MSBuildThisFileDirectory)..\README.md" Pack="true" PackagePath="\docs"/>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/ReactiveMarbles.RoslynHelpers/ReactiveMarbles.RoslynHelpers.csproj b/src/ReactiveMarbles.RoslynHelpers/ReactiveMarbles.RoslynHelpers.csproj
index 0e60d01..cb56670 100644
--- a/src/ReactiveMarbles.RoslynHelpers/ReactiveMarbles.RoslynHelpers.csproj
+++ b/src/ReactiveMarbles.RoslynHelpers/ReactiveMarbles.RoslynHelpers.csproj
@@ -2,15 +2,20 @@
 
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;net6.0</TargetFrameworks>
-    <LangVersion>latest</LangVersion>
+    <LangVersion>9</LangVersion>
     <Nullable>enable</Nullable>
     <Authors>ReactiveUI Association Inc</Authors>
     <Description>A library to make roslyn operations easier.</Description>
-    <DebugType>full</DebugType>
+    <DevelopmentDependency>true</DevelopmentDependency>
+    <IncludeBuildOutput>false</IncludeBuildOutput>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" PrivateAssets="all" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Content Include="**\*.cs" PackagePath="any/any" Exclude="**\obj\**\*.cs" />
+  </ItemGroup>
 </Project>
diff --git a/src/ReactiveMarbles.RoslynHelpers/RoslynCommonHelpers.cs b/src/ReactiveMarbles.RoslynHelpers/RoslynCommonHelpers.cs
index b3fe8de..352fd16 100644
--- a/src/ReactiveMarbles.RoslynHelpers/RoslynCommonHelpers.cs
+++ b/src/ReactiveMarbles.RoslynHelpers/RoslynCommonHelpers.cs
@@ -2,6 +2,8 @@
 // ReactiveUI Association Incorporated licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
 
+#pragma warning disable
+
 using System;
 using System.Linq;
 
@@ -64,7 +66,7 @@ public static AttributeListSyntax[] GenerateObsoleteAttributeList(ISymbol eventD
             var message = obsoleteAttribute.ConstructorArguments.FirstOrDefault().Value?.ToString();
             var isError = bool.Parse(obsoleteAttribute.ConstructorArguments.ElementAtOrDefault(1).Value?.ToString() ?? bool.FalseString) ? SyntaxKind.TrueLiteralExpression : SyntaxKind.FalseLiteralExpression;
 
-            if (message is not null && !string.IsNullOrWhiteSpace(message))
+            if (message != null && !string.IsNullOrWhiteSpace(message))
             {
                 var attribute = Attribute(
                     "global::System.ObsoleteAttribute",
diff --git a/src/ReactiveMarbles.RoslynHelpers/RoslynGeneratorExtensions.cs b/src/ReactiveMarbles.RoslynHelpers/RoslynGeneratorExtensions.cs
index e344b16..457dfdf 100644
--- a/src/ReactiveMarbles.RoslynHelpers/RoslynGeneratorExtensions.cs
+++ b/src/ReactiveMarbles.RoslynHelpers/RoslynGeneratorExtensions.cs
@@ -2,6 +2,8 @@
 // ReactiveUI Association Incorporated licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
 
+#pragma warning disable
+
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
@@ -115,12 +117,10 @@ public static IEnumerable<T> GetMembers<T>(this INamedTypeSymbol symbol)
             {
                 var member = members[i];
 
-                if (member is not T targetSymbol)
+                if (member is T targetSymbol)
                 {
-                    continue;
+                    yield return targetSymbol;
                 }
-
-                yield return targetSymbol;
             }
         }
 
@@ -148,7 +148,7 @@ public static IEnumerable<IEventSymbol> GetEvents(this INamedTypeSymbol item, bo
                 {
                     var member = members[memberIndex];
 
-                    if (member is not IEventSymbol eventSymbol)
+                    if (!(member is IEventSymbol eventSymbol))
                     {
                         continue;
                     }
@@ -238,7 +238,7 @@ public static IEnumerable<T> GetBaseTypesAndThis<T>(this T type)
             where T : ITypeSymbol
         {
             var current = type;
-            while (current is not null)
+            while (current != null)
             {
                 yield return current;
                 current = (T?)current.BaseType;
@@ -261,7 +261,7 @@ public static IEnumerable<T> GetBaseTypesAndThis<T>(this T type, Func<T?, bool>
             }
 
             var current = type;
-            while (current is not null)
+            while (current != null)
             {
                 if (condition.Invoke(current))
                 {
@@ -311,7 +311,7 @@ public static IEnumerable<T> GetBasesWithCondition<T>(this T symbol, Func<T, boo
 
             var current = (T?)symbol.BaseType;
 
-            while (current is not null)
+            while (current != null)
             {
                 if (condition.Invoke(current))
                 {
@@ -338,7 +338,7 @@ public static string GetArityDisplayName(this ITypeSymbol namedTypeSymbol)
 
             var current = namedTypeSymbol;
 
-            while (current is not null)
+            while (current != null)
             {
                 items.Push(current);
                 current = current.ContainingType;
diff --git a/src/ReactiveMarbles.RoslynHelpers/SyntaxExtensions.cs b/src/ReactiveMarbles.RoslynHelpers/SyntaxExtensions.cs
index ff5b62d..6def663 100644
--- a/src/ReactiveMarbles.RoslynHelpers/SyntaxExtensions.cs
+++ b/src/ReactiveMarbles.RoslynHelpers/SyntaxExtensions.cs
@@ -2,6 +2,8 @@
 // ReactiveUI Association Incorporated licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
 
+#pragma warning disable
+
 using System.Linq;
 using System.Runtime.CompilerServices;
 
diff --git a/src/ReactiveMarbles.RoslynHelpers/SyntaxFactoryHelpers.cs b/src/ReactiveMarbles.RoslynHelpers/SyntaxFactoryHelpers.cs
index fbf3a66..64bf595 100644
--- a/src/ReactiveMarbles.RoslynHelpers/SyntaxFactoryHelpers.cs
+++ b/src/ReactiveMarbles.RoslynHelpers/SyntaxFactoryHelpers.cs
@@ -2,6 +2,8 @@
 // ReactiveUI Association Incorporated licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
 
+#pragma warning disable
+
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -298,7 +300,7 @@ public static AttributeListSyntax AttributeList(AttributeSyntax attribute, Synta
             var attributeList = SingletonSeparatedList(attribute);
 
             AttributeTargetSpecifierSyntax? attributeTarget = null;
-            if (target is not null)
+            if (target != null)
             {
                 attributeTarget = AttributeTargetSpecifier(target.Value);
             }
diff --git a/src/ReactiveMarbles.RoslynHelpers/TypesMetadata.cs b/src/ReactiveMarbles.RoslynHelpers/TypesMetadata.cs
index 25d76ce..af65d1a 100644
--- a/src/ReactiveMarbles.RoslynHelpers/TypesMetadata.cs
+++ b/src/ReactiveMarbles.RoslynHelpers/TypesMetadata.cs
@@ -2,6 +2,8 @@
 // ReactiveUI Association Incorporated licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
 
+#pragma warning disable
+
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;