We are releasing version 2026.1 of RailCOMPLETE. The most important change in this release is support for AutoCAD 2025 and newer versions. In addition, this release addresses several usability pain points, where achieving common tasks required an excessive number of steps or detailed knowledge of multiple systems. To reduce this friction, we have streamlined parts of the workflow and improved how several features are accessed. Details are outlined below.
You can find the full list of changes in the release notes.
AutoCAD 2025 support
Due to changes in Autodesk APIs from 2024 to 2025, RailCOMPLETE 2024.2 and older do not work with AutoCAD 2025 or newer. RailCOMPLETE 2026.1 works with AutoCAD /Civil 3D / Map 3D 2025 and 2026 as well as with the older versions of AutoCAD.
3D and IFC export
The 3D export has been overhauled with new commands, settings and interface improvements.
- “Insert 3D Preview” is now available from the right-click menu. Making a 3D block from a railway object is a common operation and is made easier through this change.
- The export 3D window is easier to work with with the ability to save only the current tab’s settings, reset the current tab’s settings or saving / resetting all settings to default.
- The IFC / DWG export no longer leaves exported graphics in the AutoCAD block table of the current drawing. This means that no time-consuming PURGE is needed after 3D exports.
- New settings give better control of 3D output. Previous RC versions’ Level Of Detail would unwantedly suppress (ignore) thin objects such as boards and 3D text items. You may now preserve such items while still reducing the complexity for thicker objects, with the new “Thinness” preservation setting.
- 3D export to DWG (and IFC) can now export geometries as MESH surfaces, i.e. small triangles and squares (tiles) that approximate the smooth surfaces of SOLID entities. You can specify the maximum angular change between adjacent tiles as well as the maximum deviation from a tile to its real surface. Exported files tend to be a lot smaller with almost no speed penalty when using meshed surfaces. Also, AutoCAD treats meshed 3D much faster than SOLID objects, so your meshed 3D will be faster to rotate and pan in DWG then SOLIDs.
- Export to IFC has several improvements, notably:
- Better control of IFC entities in export.
- Option to automatically set base point.
Lua Script Menu
The run script button has been replaced by a run script menu. This provides an overview of your scripts including easy access to all your script folders, the ability to pin favorite scripts and a list of recently run scripts.
Lua Debugger
The debugger is improved with a new environment tab to see predefined global variables. We have cleaned up the keyboard shortcuts. “Add Watch” is now Ctrl+T instead of the former Ctrl+W (which is “Close Window” in most contexts).
Text Attributes
Text Attributes can now be edited in the Property manager. The text can be set directly from the Content sub-property, as a direct value or as a formula. As before, text attributes can only be declared in DNA – the user can neither add nor remove text attributes.
Value and Formula Picker
When editing several objects at once, you can now use “Pick Value” (F6) or “Pick Formula” (F7) to select the same value or formula for all the objects. You can also use this tool to make a new selection set consisting of all objects having the same value or formula as the one you select from the menu of available values / formulas.
The Value / Formula picker largely makes the existing command RC-EditProperties obsolete.
Excel exports of tables are now much faster.
In addition to this there are lots of minor UI improvements, small features, and bugfixes.

