Microsoft has introduced NuGet to manage packages and download them easily for development. NuGet is a central place to get the libraries. Developers of these libraries and frameworks can easily apply new versions or bug fixes to NuGet. Microsoft began to use NuGet for assemblies that would normally be in the FCL. MVC is installed as a NuGet package in the application and not machine-wide like the FCL. This enables different applications to use different versions of MVC without the need to install different versions of the .NET Framework. Distributing MVC via NuGet gave Microsoft the ability to update MVC "out of band" with the .NET Framework, which enabled MVC to evolve much faster with more frequent updates. This was the upbeat of a completely modular framework class library with .NET Core.