FSX/P3D. If you are interested in advance testing with TFDi before updates are officially rolled out to the community, then this for you! To join, simply navigate to the Client Area and select the 717 from your product list. Click on the addons tab on the left sidebar of the webpage, click on “Click here to view & order”, and select TFDi Design 717 Community Opt-In Beta. The team also has more information on the next major update all of which you will find via the source link!