diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 937f730..b5d1a6a 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,6 +1,6 @@
 {
     "name": "C# (.NET Core)",
-    "image": "mcr.microsoft.com/vscode/devcontainers/dotnet:5.0",
+    "image": "mcr.microsoft.com/vscode/devcontainers/dotnet:9.0",
     "settings": {
         "terminal.integrated.shell.linux": "/bin/bash"
     },
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 63b4b25..59663a3 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -1,4 +1,17 @@
-2.0.0
+# Release Notes
+
+List of notable changes between majors
+
+## 22.0.0
+
+- (Breaking) Removed support for some Async calls in .NET Framework and
+  legacy versions of .NET to better support .NET 8 and later
+- Minimum required TestableIO.System.IO.Abstractions version is now 22.x
+- Removed .NET 7 build (should still work with .NET standard build)
+- Removed .NET 6 build (should still work with .NET standard build)
+
+## 2.0.0
+
 - (Breaking) Moved all extensions methods to 'System.IO.Abstractions' namespace
 - Added ThrowIfNotFound extension methods
 - Removed .NET 5 build (should still work with .NET standard build)
\ No newline at end of file
diff --git a/tests/System.IO.Abstractions.Extensions.Tests/System.IO.Abstractions.Extensions.Tests.csproj b/tests/System.IO.Abstractions.Extensions.Tests/System.IO.Abstractions.Extensions.Tests.csproj
index e2d4a2b..29abcd1 100644
--- a/tests/System.IO.Abstractions.Extensions.Tests/System.IO.Abstractions.Extensions.Tests.csproj
+++ b/tests/System.IO.Abstractions.Extensions.Tests/System.IO.Abstractions.Extensions.Tests.csproj
@@ -14,7 +14,10 @@
 	<ItemGroup>
 		<PackageReference Include="TestableIO.System.IO.Abstractions.Wrappers" Version="22.0.10" />
 		<PackageReference Include="NUnit" Version="4.3.2" />
-		<PackageReference Include="NUnit.Analyzers" Version="4.3.0" />
+		<PackageReference Include="NUnit.Analyzers" Version="4.6.0">
+		  <PrivateAssets>all</PrivateAssets>
+		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
 		<PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
 		<PackageReference Include="coverlet.collector" Version="6.0.4" />