Update to .NET 10.0 (except library) and C# 13

Copilot · BenjaminMichaelis · Copilot · commit 9c11a54f9b9f · 2025-12-26T20:51:27.000Z
Co-authored-by: BenjaminMichaelis &lt;22186029+BenjaminMichaelis@users.noreply.github.com&gt;
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -16,7 +16,7 @@
 	<PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
   <PropertyGroup>
-  	<LangVersion>12.0</LangVersion>
+  	<LangVersion>13.0</LangVersion>
   	<ImplicitUsings>true</ImplicitUsings>
   	<Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/ListingManager.Tests/EssentialCSharp.ListingManager.Tests.csproj b/ListingManager.Tests/EssentialCSharp.ListingManager.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>net9.0</TargetFramework>
+        <TargetFramework>net10.0</TargetFramework>
         <IsPackable>false</IsPackable>
     </PropertyGroup>
 
diff --git a/global.json b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.100",
+    "version": "10.0.100",
     "rollForward": "latestMinor"
   }
 }
