From 3998f32375ea8d57fb6b1d8557f8127d625acad6 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 2 Dec 2025 00:57:46 +0000
Subject: [PATCH 1/2] Initial plan


From 1c3e955f92a6620554dfdabb7090c8c8c37fa7ac Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 2 Dec 2025 01:07:09 +0000
Subject: [PATCH 2/2] Only set UnsupportedTargetFrameworkVersion when
 NETCoreAppMaximumVersion exists

Co-authored-by: marcpopMSFT <12663534+marcpopMSFT@users.noreply.github.com>
---
 .../targets/Microsoft.NET.SupportedTargetFrameworks.props       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.SupportedTargetFrameworks.props b/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.SupportedTargetFrameworks.props
index 509e027d00e3..ff50a590d76c 100644
--- a/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.SupportedTargetFrameworks.props
+++ b/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.SupportedTargetFrameworks.props
@@ -31,7 +31,7 @@ Copyright (c) .NET Foundation. All rights reserved.
         <SupportedNETCoreAppTargetFramework Include=".NETCoreApp,Version=v10.0" DisplayName=".NET 10.0" Alias="net10.0" />
     </ItemGroup>
 
-    <PropertyGroup>
+    <PropertyGroup Condition="'$(NETCoreAppMaximumVersion)' != ''">
         <!-- This is for a better error experience when using an older VS (with an older SDK) to target a newer TFM. The value should be the min VS version for N+1 version-->
         <UnsupportedTargetFrameworkVersion>$([MSBuild]::Add($(NETCoreAppMaximumVersion), 1)).0</UnsupportedTargetFrameworkVersion>
         <MinimumVisualStudioVersionForUnsupportedTargetFrameworkVersion>17.16</MinimumVisualStudioVersionForUnsupportedTargetFrameworkVersion>