These are being pulled out of the shared framework and will ship as NuGet packages. These assemblies have a dependency on the IdentityModel APIs which do no yet fit the guidelines the shared framework.
cref aspnet/AspNetCore#3755
This generates additional metadata for the .NET Core SDK to resolve conflicts between Microsoft.AspNetCore.App and PackageReferences which contain the same assemblies.
This changes the way Microsoft.AspNetCore.App works to follow patterns set by Microsoft.NETCore.App. Instead of being a metapackage with dozens of dependencies, this package has no dependencies. It uses RID-splitting to deliver standalone assets for self-contained deployments.
Changes:
* Implements RID-split packages for Microsoft.AspNetCore.App.
* Update shared fx deps.json generation to only include entries for the RID-specific metapackages
* Include platform-specific packages in publish output
* Remove all nuspec dependencies of Microsoft.AspNetCore.App and collect all references into the package.