It is as popular as it is complex, the Majestic Software Dash 8 Q400 for P3D 64 bit supports now P3D5 too.
The update is free and includes other improvements in the latest installer version 1.021 :
- P3D5 Support
- Weight on wheel detection logic improvements
- Shared cockpit interface stability fixes
- Fixed a crash of the FMS caused by certain Navaids
- Fix, related to the incorrect simulator rate with the new Windows 10 2004 update
- Dynamic flare, approach and taxi lights