This is a compatibility release for Autofac 6.0.
Breaking change: Starting with Autofac 6.0, we now only target netstandard2.0 and netstandard2.1; we have removed the explicit target for net461. While this package was only targeting netstandard2.0 before, upgrading to this version will bring in Autofac v6 and the associated TFM change for that transitive dependency.