<PackageReference Include="System.Reactive" Version="4.0.0-preview.4.build.391" />

API Differences between 4.0.0-preview.4.build.391 and 4.4.1

12 Additions 44 Removals

System.Reactive.Concurrency

System.Reactive.Disposables

System.Reactive.Linq

System.Reactive.Threading.Tasks