Should DisplayVSMessage condition read from NETCoreAppMaximumVersion instead of UnsupportedTargetFrameworkVersion

[ViktorHofer]

sdk/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.TargetFrameworkInference.targets

Line 163 in d071d83

<DisplayVSMessage Condition="$([MSBuild]::VersionLessThan($(MSBuildVersion), '$(MinimumVisualStudioVersionForUnsupportedTargetFrameworkVersion)')) and '$(BuildingInsideVisualStudio)' == 'true' and '$(_TargetFrameworkVersionWithoutV)' == '$(UnsupportedTargetFrameworkVersion)' and '$([MSBuild]::IsOSPlatform(`Windows`))' == 'true'">true</DisplayVSMessage>

I'm not sure why we need the UnsupportedTargetFrameworkVersion property when we already have NETCoreAppMaximumVersion. The latter defines the maximum .NETCoreApp version that the SDK supports targeting. The former is basically NETCoreAppMaximumVersion+1.

This is now coming up because i.e. in runtime we target net10.0 with a .NET 9 SDK and set NETCoreAppMaximumVersion to 10.0. Now with the additional UnsupportedTargetFrameworkVersion property, we would also need to override that.