Red Giant Trapcode Suite 15.1.8 -x64- Keys ((hot)) -

: Unlike Particular, Form uses "permanent" particle grids that can be dissolved or transformed based on audio or 3D models. Trapcode Tao

: A fast-rendering tool that generates 3D surfaces, terrains, and wireframe geometries. Red Giant Trapcode Suite 15.1.8 -x64- Keys

If you downloaded the installer from an unofficial source, the warning is likely valid. Always download from Maxon or Red Giant directly. : Unlike Particular, Form uses "permanent" particle grids