As announced a few days ago, FlightSimLabs has updated their A320-X family product line to be compatible with Prepar3D v4.5 hotfix 3. The update goes by version number v2.0.2.450. It does not contain any new features, nor does it add compatibility for Prepar3D v5.
To read more information about the update, as well as FlightSimLabs’ statement on Prepar3D v5 and the upcoming A320-X sharklet update you can read this article.