Check the Announcements section in the Feedback Hub on a Windows 10 Device for more details.
Help shape the next release of Windows Server!
Complete Quests in the Feedback Hub application
Log actionable feedback regarding issues you encounter, as well as suggestions for future improvements as you use the product.
To provide feedback for the Bug Bash, use your registered Windows 10 Insider device and use the Feedback Hub application. In the app, choose the Server category and then the appropriate subcategory for your feedback. In the title of the Feedback, please indicate the build number you are providing feedback on in this format: