.NET 8 is now available for Inventor on Design Automation

The transition to .NET 8 for desktop products is significant, with effects on 3rd party developers and delayed support for Design Automation for Inventor. However, users can now select between two versions for the 2025 engine: Autodesk.Inventor.2025_Net8 (supporting .NET 8) and Autodesk.Inventor.2025 (supporting .NET Framework 4.8). Future versions are expected to support only .NET 8, simplifying the development process and eliminating the need to test across different frameworks.
You can find additional details in this blog