Earlier today, continuing their tradition of being one of the fastest devs to release updated versions of their software for new Prepar3D versions. HiFi released Hotfix 4 for Active Sky 2016 + Active Sky Cloud Art. The update includes support for Prepar3d v3.4 as well as other fixes. A link to the original post is included below.
This update includes several fixes and enhancements based on user feedback, and also includes Prepar3D v3.4 compatibility (AS16 for P3D). HF4 is a recommended update for all AS16 users and is available for download now from http://www.hifisimtech.com/downloads. In addition, Hotfix 4 for ASCA (general fixes) and Hotfix 04202016 for ASN for P3D (v3.4 compatibility) have also been released.