Hi Bill,
The SDK was updated for Prepar3D v1.4, the SDK page states this:
http://www.prepar3d.com/support/sdk/
Also, the SDK download page shows the new version number as well:
http://www.prepar3d.com/downloads/?did=22
Thanks again for all your support of Prepar3D!
Software Manager - Prepar3D® Team
Posted, and the team leader, Wes, answered.
Yes, updated, linked to the newest version of P3D.