Beta 4 is now available for LR customers, and we expect Steam to be available within 24 hours.
This update has a few more flight model fixes based on user feedback, a GPS error fix, and a fix for scenery decals.
UPDATE: We received a high volume of crash reports over the weekend with this beta. Because of this, we did not release it on Steam. We hope to have another beta out ASAP to help address the crash frequency.