Xamarin Test Cloud is now part of Visual Studio App Center! Get Started.

Xamarin.TestCloud.Agent Release Notes

Release notes for Xamarin.TestCloud.Agent

Current release is 0.21.4

Xamarin Workbook

If it's not already installed, install the Xamarin Workbooks app first. The workbook file should download automatically, but if it doesn't, just click to start the workbook download manually.