diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 25f43e7..a190a6f 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -15,14 +15,14 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Setup .NET
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: 6.0.x
-    - name: Restore dependencies
-      run: dotnet restore
-    - name: Build
-      run: dotnet build --no-restore
-    - name: Test
-      run: dotnet test --no-build --verbosity normal
+      - uses: actions/checkout@v3
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 8.0.x
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --no-restore
+      - name: Test
+        run: dotnet test --framework net8.0 --verbosity normal
diff --git a/AGENTS.md b/AGENTS.md
index 6dd4a2f..ef3e0df 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -2,7 +2,7 @@
 
 This repository hosts various libraries distributed as NuGet packages. Keep these links up to date so contributors and tools can easily locate them.
 
-Only the .NET SDK **8.0** is available in the execution environment. Use this version when building or running tests.
+Only the .NET SDK **8.0** is available in the execution environment. Use this version when building or running tests. When invoking `dotnet test`, do **not** pass `--no-build` because that leads to missing assemblies. Instead, specify the `--framework` argument matching the SDK available in the environment (currently `net8.0`).
 
 All `*.csproj` files should enable nullable reference types with `<Nullable>enable</Nullable>`.
 Indent code using four spaces or a single tab per level. Place one blank line after each closing curly brace of a code block, except when several closing braces appear sequentially. Always use braces for `if` and `else` bodies.
diff --git a/Recyclable.Collections/RecyclableStack.cs b/Recyclable.Collections/RecyclableStack.cs
index 21f8403..def9ba0 100644
--- a/Recyclable.Collections/RecyclableStack.cs
+++ b/Recyclable.Collections/RecyclableStack.cs
@@ -43,7 +43,6 @@ namespace Recyclable.Collections
         }
 
         private RecyclableArrayPoolChunk<T> _current;
-        private RecyclableArrayPoolChunk<T> _bottom;
         private bool _disposed;
         private long _capacity;
         private long _count;
@@ -61,7 +60,6 @@ namespace Recyclable.Collections
             }
 
             _current = RentChunk(initialCapacity, null);
-            _bottom = _current;
             _capacity = initialCapacity;
             _count = 0;
         }
@@ -128,7 +126,6 @@ namespace Recyclable.Collections
             _capacity = _current.Buffer.Length;
             _current.Index = 0;
             _count = 0;
-            _bottom = _current;
         }
 
         public Enumerator GetEnumerator() => new(this);
@@ -160,10 +157,6 @@ namespace Recyclable.Collections
             _current = toReturn.Previous!;
             _current.Next = null;
             _capacity -= toReturn.Buffer.Length;
-            if (_current.Previous == null)
-            {
-                _bottom = _current;
-            }
             ReturnChunk(toReturn);
         }
 
diff --git a/SourceCodeGenerator.Net/SourceCodeGenerator.Net.csproj b/SourceCodeGenerator.Net/SourceCodeGenerator.Net.csproj
index bca5e9a..76fdb19 100644
--- a/SourceCodeGenerator.Net/SourceCodeGenerator.Net.csproj
+++ b/SourceCodeGenerator.Net/SourceCodeGenerator.Net.csproj
@@ -1,8 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-        <TargetFramework>net8.0</TargetFramework>
-	<EnforceExtendedAnalyzerRules>True</EnforceExtendedAnalyzerRules>
+    <TargetFrameworks>net8.0;net7.0;net6.0</TargetFrameworks>
+    <Nullable>enable</Nullable>
+    <EnforceExtendedAnalyzerRules>True</EnforceExtendedAnalyzerRules>
   </PropertyGroup>
 
   <ItemGroup>