Most RecentMost ViewedMost LikesFunctional testing in the Update Staging Lab You can now perform custom functional tests—using the test framework of your choice. Learn more! Feature update validation now available on Update Staging Lab Gain insight into how your applications will perform with the next release of Windows 10—prior to general availability. Update Staging Lab updates: process level performance metrics, UI updates Easily understand resource utilization for specific app and processes, save presets, note restart requirements, and more.