diff --git a/Directory.Build.props b/Directory.Build.props
new file mode 100644
index 00000000..a4776dc2
--- /dev/null
+++ b/Directory.Build.props
@@ -0,0 +1,15 @@
+<Project>
+
+  <PropertyGroup>
+
+    <PackageProjectUrl>https://github.com/aaubry/YamlDotNet</PackageProjectUrl>
+    <RepositoryUrl>https://github.com/aaubry/YamlDotNet</RepositoryUrl>
+    <Description>YamlDotNet is a .NET library for YAML. YamlDotNet provides low level parsing and emitting of YAML as well as a high level object model similar to XmlDocument. A serialization library is also included that allows to read and write objects from and to YAML streams.</Description>
+    <PackageLicenseExpression>MIT</PackageLicenseExpression>
+    <Copyright>Copyright (c) Antoine Aubry and contributors</Copyright>
+
+    <LangVersion>12.0</LangVersion>
+
+  </PropertyGroup>
+
+</Project>
diff --git a/YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj b/YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj
index 668e6740..c320399b 100644
--- a/YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj
+++ b/YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj
@@ -2,7 +2,6 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <LangVersion>9.0</LangVersion>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/YamlDotNet.Fsharp.Test/YamlDotNet.Fsharp.Test.fsproj b/YamlDotNet.Fsharp.Test/YamlDotNet.Fsharp.Test.fsproj
index 73492986..a002e648 100644
--- a/YamlDotNet.Fsharp.Test/YamlDotNet.Fsharp.Test.fsproj
+++ b/YamlDotNet.Fsharp.Test/YamlDotNet.Fsharp.Test.fsproj
@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
     <AssemblyOriginatorKeyFile>..\YamlDotNet.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
-    <LangVersion>8.0</LangVersion>
+    <LangVersion></LangVersion>
     <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
     <WarningsAsErrors>true</WarningsAsErrors>
   </PropertyGroup>
diff --git a/YamlDotNet.Samples.Fsharp/YamlDotNet.Samples.Fsharp.fsproj b/YamlDotNet.Samples.Fsharp/YamlDotNet.Samples.Fsharp.fsproj
index e1f20065..c0a9f26e 100644
--- a/YamlDotNet.Samples.Fsharp/YamlDotNet.Samples.Fsharp.fsproj
+++ b/YamlDotNet.Samples.Fsharp/YamlDotNet.Samples.Fsharp.fsproj
@@ -4,13 +4,11 @@
     <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <IsPackable>false</IsPackable>
+    <LangVersion></LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\YamlDotNet\YamlDotNet.csproj">
-      <Project>{BF32DE1B-6276-4341-B212-F8862ADBBA7A}</Project>
-      <Name>YamlDotNet</Name>
-    </ProjectReference>
+    <ProjectReference Include="..\YamlDotNet\YamlDotNet.csproj" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/YamlDotNet.Samples/YamlDotNet.Samples.csproj b/YamlDotNet.Samples/YamlDotNet.Samples.csproj
index e8d4b0d0..04073633 100644
--- a/YamlDotNet.Samples/YamlDotNet.Samples.csproj
+++ b/YamlDotNet.Samples/YamlDotNet.Samples.csproj
@@ -15,9 +15,6 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\YamlDotNet.Test\YamlDotNet.Test.csproj" />
-    <ProjectReference Include="..\YamlDotNet\YamlDotNet.csproj">
-      <Project>{BF32DE1B-6276-4341-B212-F8862ADBBA7A}</Project>
-      <Name>YamlDotNet</Name>
-    </ProjectReference>
+    <ProjectReference Include="..\YamlDotNet\YamlDotNet.csproj" />
   </ItemGroup>
 </Project>
diff --git a/YamlDotNet.Test/YamlDotNet.Test.csproj b/YamlDotNet.Test/YamlDotNet.Test.csproj
index 1ccafd6e..1fc578db 100644
--- a/YamlDotNet.Test/YamlDotNet.Test.csproj
+++ b/YamlDotNet.Test/YamlDotNet.Test.csproj
@@ -4,7 +4,6 @@
     <IsPackable>false</IsPackable>
     <AssemblyOriginatorKeyFile>..\YamlDotNet.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
-	  <LangVersion>11.0</LangVersion>
     <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
   </PropertyGroup>
 
diff --git a/YamlDotNet.sln b/YamlDotNet.sln
index b88747fc..6498d718 100644
--- a/YamlDotNet.sln
+++ b/YamlDotNet.sln
@@ -13,12 +13,12 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 	ProjectSection(SolutionItems) = preProject
 		.editorconfig = .editorconfig
 		appveyor.yml = appveyor.yml
-		build\common.props = build\common.props
 		CONTRIBUTING.md = CONTRIBUTING.md
 		GitVersion.yml = GitVersion.yml
 		LICENSE-libyaml = LICENSE-libyaml
 		LICENSE.txt = LICENSE.txt
 		README.md = README.md
+		Directory.Build.props = Directory.Build.props
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "YamlDotNet.Benchmark", "YamlDotNet.Benchmark\YamlDotNet.Benchmark.csproj", "{52D1E5F3-8337-48FC-AED5-968B51C7DAEB}"
diff --git a/YamlDotNet/YamlDotNet.csproj b/YamlDotNet/YamlDotNet.csproj
index 2d44412c..dd64a520 100644
--- a/YamlDotNet/YamlDotNet.csproj
+++ b/YamlDotNet/YamlDotNet.csproj
@@ -3,11 +3,6 @@
   <PropertyGroup>
     <TargetFrameworks>net8.0;net6.0;netstandard2.0;netstandard2.1;net47</TargetFrameworks>
 
-    <PackageProjectUrl>https://github.com/aaubry/YamlDotNet</PackageProjectUrl>
-    <RepositoryUrl>https://github.com/aaubry/YamlDotNet</RepositoryUrl>
-    <Description>YamlDotNet is a .NET library for YAML. YamlDotNet provides low level parsing and emitting of YAML as well as a high level object model similar to XmlDocument. A serialization library is also included that allows to read and write objects from and to YAML streams.</Description>
-    <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <Copyright>Copyright (c) Antoine Aubry and contributors</Copyright>
     <Configurations>Debug;Release</Configurations>
     <AssemblyOriginatorKeyFile>..\YamlDotNet.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
@@ -17,7 +12,6 @@
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
     <WarningsAsErrors>true</WarningsAsErrors>
 
-    <LangVersion>8.0</LangVersion>
     <Nullable>enable</Nullable>
 
     <NetStandard>false</NetStandard>