Xamarin.Build.Download by: Microsoft

Support for downloading and unpacking archives when building MSBuild projects

xunit.analyzers by: jnewkirk bradwilson marcind

xUnit.net is a developer testing framework, built to support Test Driven Development, with a design goal of extreme simplicity and alignment with framework features. Installing this package provides code analyzers to help developers find and fix frequent issues when writing tests and xUnit.net extensibility code.

Xamarin.AndroidX.Migration by: Microsoft

This package provides a set of tools and MSBuild tasks to aid in the migration from Android Support to Android X.