In which versions of Visual Studio do .NET full framework projects support PackageReference?
According to https://learn.microsoft.com/en-us/nuget/consume-packages/package-references-in-project-files
.NET full framework projects support PackageReference
In which versions of Visual Studio is that?
With Visual Studio 2017 and .NET Core, we have improved the NuGet package management experience by introducing the PackageReference feature in MSBuild. PackageReference brings new and improved capabilities such as deep MSBuild integration, improved performance for everyday tasks such as install and restore, multi-targeting and more.
Starting with the first Update (15.1) you get support for other types.
What about other project types that are not .NET Core? You can get a first look of what will come in the next NuGet update. Hop on to the Visual Studio 2017 Update 1 Preview 2 bandwagon.
So if you run the current 15.7.x you already have support even if Visual Studio 2017 still uses packages.config by default. With 15.7 VS2017 does also have a convert tool to migrate the old packages.config way to new style:
