ASP.NET Core's framework embeds System.IO.Pipelines (since it is required by ASP.NET Core servers). As a result, our targeting pack also includes this library. However, since System.IO.Pipelines does not provide a ref assembly, we currently embed the full library. This is not ideal as it means the 3.0.0 version of this library will always be present on disk. The implementation is also larger than the ref assembly.

In order to properly embed the ref assembly, we need System.IO.Pipelines to produce ref/netcoreapp3.0 asset.

Packages affected:

• System.IO.Pipelines
• System.Threading.Channels