diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 09bd897ee2..8c356dab99 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -40,7 +40,7 @@ jobs:
     name: ${{ matrix.BENCHMARK_NAME }}
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - name: Run ${{ matrix.BENCHMARK_NAME }}
         working-directory: ${{ env.BENCHMARKS_PATH }}
         run: dotnet run --exporters json --configuration Release --filter '*${{ matrix.BENCHMARK_NAME }}*'
diff --git a/.github/workflows/code-ql.yml b/.github/workflows/code-ql.yml
index cb76dd9018..14d6e5221a 100644
--- a/.github/workflows/code-ql.yml
+++ b/.github/workflows/code-ql.yml
@@ -34,6 +34,6 @@ jobs:
       - uses: github/codeql-action/init@v2
         with:
           languages: ${{ matrix.language }}
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet build
       - uses: github/codeql-action/analyze@v2
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index c47027c72a..3aef0558f1 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -46,7 +46,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/configure-pages@v3
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet tool restore
       - run: dotnet build
       - uses: actions/setup-node@v3
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 9da7ac82da..89e52f42d2 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet tool restore
       - run: dotnet csharpier --check .
       # don't run dotnet format for whitespace formatting as this is done by csharpier
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 452fa6308c..6d47f74a99 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,6 +18,10 @@ on:
         description: 'The created version'
         value: ${{ jobs.release.outputs.version }}
 
+env:
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
+  DOTNET_NOLOGO: true
+
 jobs:
   release:
     runs-on: ubuntu-latest
@@ -28,7 +32,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - uses: actions/setup-node@v3
         with:
           node-version: '18'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5a272a03fb..84cc2bee1c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,13 +22,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet run --project ./samples/Riok.Mapperly.Sample
   test:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet build /p:TreatWarningsAsErrors=true
       - run: dotnet test --no-build /p:CollectCoverage=true /p:CoverletOutputFormat=opencover
       - uses: codecov/codecov-action@v3
@@ -39,7 +39,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: sudo apt update && sudo apt -y install zipmerge # zipmerge is used to merge the multi target nupkg
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet tool restore
       - run: RELEASE_VERSION="0.0.1-dev.$GITHUB_RUN_ID" ./build/package.sh
       - uses: actions/upload-artifact@v3
@@ -56,7 +56,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
       - run: dotnet tool restore
       - uses: actions/download-artifact@v3
         with:
@@ -84,7 +84,7 @@ jobs:
       - run: apk add --no-cache bash icu-libs krb5-libs libgcc libintl libssl1.1 libstdc++ zlib
       # delete global.json since we want to use custom versions here
       - run: rm global.json
-      - uses: actions/setup-dotnet@v3.2.0
+      - uses: actions/setup-dotnet@v3
         with:
           dotnet-version: ${{ matrix.dotnet }}
       - run: dotnet --list-sdks
diff --git a/Directory.Build.props b/Directory.Build.props
index 5f80726258..1212b92c88 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <DebugSymbols>true</DebugSymbols>
     <DebugType>embedded</DebugType>
     <Nullable>enable</Nullable>
diff --git a/benchmarks/Riok.Mapperly.Benchmarks/Riok.Mapperly.Benchmarks.csproj b/benchmarks/Riok.Mapperly.Benchmarks/Riok.Mapperly.Benchmarks.csproj
index 4a85b40f98..1403a7b9e4 100644
--- a/benchmarks/Riok.Mapperly.Benchmarks/Riok.Mapperly.Benchmarks.csproj
+++ b/benchmarks/Riok.Mapperly.Benchmarks/Riok.Mapperly.Benchmarks.csproj
@@ -8,11 +8,11 @@
 
   <ItemGroup>
     <PackageReference Include="BenchmarkDotNet" Version="0.13.8" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.6.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="4.6.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.6.0" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.6.0" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.6.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.7.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="4.7.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.7.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.7.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
     <PackageReference Include="Microsoft.Build.Locator" Version="1.6.1" />
     <PackageReference Include="NuGet.Frameworks" Version="6.7.0" />
diff --git a/build/package.sh b/build/package.sh
index 546a98d229..d676f54122 100755
--- a/build/package.sh
+++ b/build/package.sh
@@ -5,7 +5,7 @@ set -Eeuo pipefail
 # pack a nupkg for each roslyn version that is supported by Mapperly
 # and merge them together into one nupkg
 
-roslyn_versions=('4.0' '4.4' '4.5')
+roslyn_versions=('4.0' '4.4' '4.5' '4.7')
 
 RELEASE_VERSION=${RELEASE_VERSION:-"0.0.1-dev.$(date +%s)"}
 RELEASE_NOTES=${RELEASE_NOTES:-''}
diff --git a/docs/docs/configuration/generated-source.mdx b/docs/docs/configuration/generated-source.mdx
index f65f7ed483..781d16fc1d 100644
--- a/docs/docs/configuration/generated-source.mdx
+++ b/docs/docs/configuration/generated-source.mdx
@@ -35,7 +35,7 @@ dotnet build /p:EmitCompilerGeneratedFiles=true
 </Tabs>
 
 By default the files are written to `{BaseIntermediateOutpath}/generated/{Assembly}/Riok.Mapperly/{GeneratedFile}`.
-With `BaseIntermediateOutpath` for example being `obj/Debug/net7.0`.
+With `BaseIntermediateOutpath` for example being `obj/Debug/net8.0`.
 
 The output path can be customized via the `CompilerGeneratedFilesOutputPath` property.
 This can be used to check the generated files into VCS.
diff --git a/docs/prebuild.ts b/docs/prebuild.ts
index dd7204ffa8..d1ba454319 100644
--- a/docs/prebuild.ts
+++ b/docs/prebuild.ts
@@ -95,7 +95,7 @@ async function buildSamples(): Promise<void> {
   const projectFilesToCopy = ['CarMapper.cs', 'Car.cs', 'CarDto.cs'];
   const generatedMapperFile = join(
     sampleProject,
-    'obj/Debug/net7.0/generated/Riok.Mapperly/Riok.Mapperly.MapperGenerator/CarMapper.g.cs',
+    'obj/Debug/net8.0/generated/Riok.Mapperly/Riok.Mapperly.MapperGenerator/CarMapper.g.cs',
   );
 
   // Copy generated mapper to target dir
diff --git a/global.json b/global.json
index 7aed64df9d..d1f845ad62 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "7.0.200",
+    "version": "8.0.100-rc.1.23455.8",
     "rollForward": "latestPatch"
   }
 }
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index e9f4bdaa58..58dfc2f477 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -12,7 +12,7 @@
     (a lot of features get polyfilled by Meziantou.Polyfill)
     however we need to be careful with the available features!
     -->
-    <LangVersion>11</LangVersion>
+    <LangVersion>preview</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Riok.Mapperly/Descriptors/Mappings/UserMappings/IDelegateUserMapping.cs b/src/Riok.Mapperly/Descriptors/Mappings/UserMappings/IDelegateUserMapping.cs
index 7fe53e337b..4533eb3c97 100644
--- a/src/Riok.Mapperly/Descriptors/Mappings/UserMappings/IDelegateUserMapping.cs
+++ b/src/Riok.Mapperly/Descriptors/Mappings/UserMappings/IDelegateUserMapping.cs
@@ -9,10 +9,4 @@ public interface IDelegateUserMapping : IUserMapping
     /// Gets the delegate mapping or <c>null</c> if none is set (yet).
     /// </summary>
     INewInstanceMapping? DelegateMapping { get; }
-
-    /// <summary>
-    /// Sets the delegate mapping.
-    /// </summary>
-    /// <param name="mapping">The mapping.</param>
-    void SetDelegateMapping(INewInstanceMapping mapping);
 }
diff --git a/src/Riok.Mapperly/Riok.Mapperly.Roslyn4.7.props b/src/Riok.Mapperly/Riok.Mapperly.Roslyn4.7.props
new file mode 100644
index 0000000000..1135a89bf8
--- /dev/null
+++ b/src/Riok.Mapperly/Riok.Mapperly.Roslyn4.7.props
@@ -0,0 +1,11 @@
+<Project>
+
+  <PropertyGroup>
+    <DefineConstants>$(DefineConstants);ROSLYN4_4_OR_GREATER</DefineConstants>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" PrivateAssets="all" />
+  </ItemGroup>
+
+</Project>
diff --git a/test/Riok.Mapperly.IntegrationTests/Riok.Mapperly.IntegrationTests.csproj b/test/Riok.Mapperly.IntegrationTests/Riok.Mapperly.IntegrationTests.csproj
index 4a817150f7..6efa08fa2c 100644
--- a/test/Riok.Mapperly.IntegrationTests/Riok.Mapperly.IntegrationTests.csproj
+++ b/test/Riok.Mapperly.IntegrationTests/Riok.Mapperly.IntegrationTests.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <!-- setting the TargetFramework directly from the cli via -p:TargetFramework=netA.B does not work using a custom msbuild property seems to work -->
-    <MapperlyIntegrationTestsTargetFramework Condition="'$(MapperlyIntegrationTestsTargetFramework)' == ''">net7.0</MapperlyIntegrationTestsTargetFramework>
+    <MapperlyIntegrationTestsTargetFramework Condition="'$(MapperlyIntegrationTestsTargetFramework)' == ''">net8.0</MapperlyIntegrationTestsTargetFramework>
     <TargetFramework>$(MapperlyIntegrationTestsTargetFramework)</TargetFramework>
 
     <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
@@ -11,6 +11,8 @@
     <!-- Not supported in .NET Framework -->
     <ImplicitUsings>disable</ImplicitUsings>
 
+    <LangVersion>preview</LangVersion>
+
     <!-- .NET Framework 4.8 defaults to lang version 7.3, but we want to test nullable features. These are available in 8.0.
           To also use init-only properties, we upgrade to lang version 9.0, which is works, but is not officially supported. -->
     <LangVersion Condition="'$(TargetFramework)' == 'net48'">9.0</LangVersion>
diff --git a/test/Riok.Mapperly.Templates.Tests/PreserveReferenceHandlerTest.cs b/test/Riok.Mapperly.Templates.Tests/PreserveReferenceHandlerTest.cs
index 9ff7055b79..8b02d837fc 100644
--- a/test/Riok.Mapperly.Templates.Tests/PreserveReferenceHandlerTest.cs
+++ b/test/Riok.Mapperly.Templates.Tests/PreserveReferenceHandlerTest.cs
@@ -10,7 +10,7 @@ public class PreserveReferenceHandlerTest
     [Fact]
     public void EmptyReferenceHandlerShouldReturnFalse()
     {
-        _handler.TryGetReference(new MyObj(), out MyDto _).Should().BeFalse();
+        _handler.TryGetReference(new MyObj(), out MyDto? _).Should().BeFalse();
     }
 
     [Fact]
diff --git a/test/Riok.Mapperly.Tests/Riok.Mapperly.Tests.csproj b/test/Riok.Mapperly.Tests/Riok.Mapperly.Tests.csproj
index ab1f229429..47198094a6 100644
--- a/test/Riok.Mapperly.Tests/Riok.Mapperly.Tests.csproj
+++ b/test/Riok.Mapperly.Tests/Riok.Mapperly.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.5.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.1.0" />
   </ItemGroup>