Autodesk apparantly releases a new (non-free) DWG developerskit.
I'm not affiliated with Autodesk, but this might be interesting to know for developers.
--- stefan boeykens --- bim-expert-architect-engineer-musician --- Archicad29/Revit2026/Rhino8/Solibri/Zoom MBP2023:14"M2MAX/Sequoia+Win11 Archicad-user since 1998 my Archicad Book
"Autodesk reserves the right not to license the Autodesk RealDWG SDK for use in software applications that compete with existing Autodesk software applications or strategies. "