Good news: PREPAR3D v5.4 is out now.
Since I am very busy at work right now, I can't manage to create a supported release. Therefore I plan to create an unsupported alpha scheme with which you should be able to start P3Dv5.4.
An official release will unfortunately take a few weeks due to holidays and work.
German:
da ich beruflich gerade stark eingespannt bin, schaffe ich es nicht ein supported release zu erstellen. Daher plane ich, ein unsupportes Alpha Schema mit dem
This is the unsupported scheme for P3Dv5.4.
Use on your own risk until SIMstarter NG P3D is fully compatible
Do use the new scheme please unzip the attached file and copy the content to
<YourSIMstarter>\scheme\platform\*