Another batch of Just Flight aircraft has now been updated for compatibility with P3D v4:If you log in to your Just Flight account and click on 'Your Orders', you will be able to re-download the software to get the latest P3D v4 compatible version(s) of the aircraft you have purchased.The DC-8 Series 10-40 and Series 50-70 add-ons will both be updated for P3D v4 shortly, as will L-1011 TriStar Professional