: The modern SCARM Registered Users Area includes a "Reset & Unlock" feature. If you change hardware, upgrade your motherboard, or migrate computers, you can manually reset your activation token once per year without waiting for email support.

If you are moving from the older version (SCARM 1.x) to the new version 2, your old key might not work directly:

The release of SCARM 2.0 introduces a refreshed design and better memory handling, ensuring that designers on Windows 7 and newer (including Linux via WINE) can continue to scale their projects as their physical space expands.

: Legacy license keys purchased under the old SCARM 1.x ecosystem will trigger a version mismatch error if applied directly to SCARM 2. Users must access their account to download an updated version-compatible profile designated as (v1/v2) or (v2) .

The new SCARM 2.0 (Simple Computer Aided Railway Modeller) license represents a major shift from the software's long-standing beta phase into a more robust, professional-grade tool. With the release of version 2.0.1 in March 2026, the licensing model has been updated to support active development while offering a clear upgrade path for long-time users . 🛠️ Key New Features and Improvements