diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7b0361f688..5dc013607e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,16 +25,13 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.1.1
+        uses: actions/checkout@v4.1.2
         with:
           fetch-depth: 0
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v4.0.0
         with:
-          dotnet-version: |
-            8.0.x
-            7.0.x
-            6.0.x
+          dotnet-version: 8.0.x
       - name: Build
         run: dotnet build src --configuration Release
       - name: Upload packages
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6e73cea7a1..411d0e4f2a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.1.1
+        uses: actions/checkout@v4.1.2
         with:
           fetch-depth: 0
       - name: Setup .NET SDK
diff --git a/src/NServiceBus.AcceptanceTests/NServiceBus.AcceptanceTests.csproj b/src/NServiceBus.AcceptanceTests/NServiceBus.AcceptanceTests.csproj
index f905a811e2..15e2f4e391 100644
--- a/src/NServiceBus.AcceptanceTests/NServiceBus.AcceptanceTests.csproj
+++ b/src/NServiceBus.AcceptanceTests/NServiceBus.AcceptanceTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <LangVersion>10.0</LangVersion>
   </PropertyGroup>
 
diff --git a/src/NServiceBus.ContainerTests/NServiceBus.ContainerTests.csproj b/src/NServiceBus.ContainerTests/NServiceBus.ContainerTests.csproj
index 6d1b488d61..cc770405ba 100644
--- a/src/NServiceBus.ContainerTests/NServiceBus.ContainerTests.csproj
+++ b/src/NServiceBus.ContainerTests/NServiceBus.ContainerTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\NServiceBusTests.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
diff --git a/src/NServiceBus.Core.Analyzer.Tests.Roslyn3/NServiceBus.Core.Analyzer.Tests.Roslyn3.csproj b/src/NServiceBus.Core.Analyzer.Tests.Roslyn3/NServiceBus.Core.Analyzer.Tests.Roslyn3.csproj
index 723d245d3b..ea927f0b4e 100644
--- a/src/NServiceBus.Core.Analyzer.Tests.Roslyn3/NServiceBus.Core.Analyzer.Tests.Roslyn3.csproj
+++ b/src/NServiceBus.Core.Analyzer.Tests.Roslyn3/NServiceBus.Core.Analyzer.Tests.Roslyn3.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <DefineConstants>$(DefineConstants);ROSLYN3</DefineConstants>
   </PropertyGroup>
 
diff --git a/src/NServiceBus.Core.Analyzer.Tests.Roslyn4/NServiceBus.Core.Analyzer.Tests.Roslyn4.csproj b/src/NServiceBus.Core.Analyzer.Tests.Roslyn4/NServiceBus.Core.Analyzer.Tests.Roslyn4.csproj
index 7a6ebf2f6c..60b782df88 100644
--- a/src/NServiceBus.Core.Analyzer.Tests.Roslyn4/NServiceBus.Core.Analyzer.Tests.Roslyn4.csproj
+++ b/src/NServiceBus.Core.Analyzer.Tests.Roslyn4/NServiceBus.Core.Analyzer.Tests.Roslyn4.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <DefineConstants>$(DefineConstants);ROSLYN4</DefineConstants>
   </PropertyGroup>
 
diff --git a/src/NServiceBus.Core.Tests/NServiceBus.Core.Tests.csproj b/src/NServiceBus.Core.Tests/NServiceBus.Core.Tests.csproj
index 42aa36bab6..5bb1c6f740 100644
--- a/src/NServiceBus.Core.Tests/NServiceBus.Core.Tests.csproj
+++ b/src/NServiceBus.Core.Tests/NServiceBus.Core.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\NServiceBusTests.snk</AssemblyOriginatorKeyFile>
     <LangVersion>10.0</LangVersion>
diff --git a/src/NServiceBus.Learning.AcceptanceTests/NServiceBus.Learning.AcceptanceTests.csproj b/src/NServiceBus.Learning.AcceptanceTests/NServiceBus.Learning.AcceptanceTests.csproj
index c5aa8b25e8..4400fe2b77 100644
--- a/src/NServiceBus.Learning.AcceptanceTests/NServiceBus.Learning.AcceptanceTests.csproj
+++ b/src/NServiceBus.Learning.AcceptanceTests/NServiceBus.Learning.AcceptanceTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <LangVersion>10.0</LangVersion>
   </PropertyGroup>
 
diff --git a/src/NServiceBus.PersistenceTests/NServiceBus.PersistenceTests.csproj b/src/NServiceBus.PersistenceTests/NServiceBus.PersistenceTests.csproj
index 628ed69de8..b034d37a56 100644
--- a/src/NServiceBus.PersistenceTests/NServiceBus.PersistenceTests.csproj
+++ b/src/NServiceBus.PersistenceTests/NServiceBus.PersistenceTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\NServiceBusTests.snk</AssemblyOriginatorKeyFile>
     <LangVersion>10.0</LangVersion>
diff --git a/src/NServiceBus.TransportTests/NServiceBus.TransportTests.csproj b/src/NServiceBus.TransportTests/NServiceBus.TransportTests.csproj
index 7f948503fb..27227f7264 100644
--- a/src/NServiceBus.TransportTests/NServiceBus.TransportTests.csproj
+++ b/src/NServiceBus.TransportTests/NServiceBus.TransportTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net481;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>