The latest release of Dymola 2026x introduces powerful enhancements for Modelica developers, improving simulation workflows and expanding capabilities. Alongside this, Claytex 2025.2 brings targeted updates to its libraries for automotive, motorsport, and fluid systems.
What’s New in Dymola 2026x?
Support for Modelica Standard Library 4.1.0
Dymola now supports Modelica Standard Library (MSL) version 4.1.0, offering improved robustness and capabilities.
- Mostly backward compatible
- Updates to machine constants (eps, small, inf) for alignment with accepted definitions
- Full details in Modelica.User’s Guide.Release notes.Version 4.1.0
17 New Components
Examples include:
- ContinuousSignalExtrema for recording min/max values
- Lossless transmission line model (Modelica.Electrical.Analog.Lines.TLine)
Key Improvements
- Tables can now read CSV files
- Enhanced FMI 3 beta support for terminals and icons
- Handling of non-physical display units (e.g., currency)
- Customization of quick access bar and ribbon
- New Sustainable Supply Systems Library
- Numerous minor enhancements for usability and performance
Claytex 2025.2 Highlights
General Updates
- Full support for Modelica Standard Library 4.1.0
Library-Specific Enhancements
- Claytex Electrical: Added current filter in PowerSource to break non-linear systems
- FluidPower: New stateSelection parameter in BaseVolume and BaseOrifice for pressure and temperature
- VeSyMA: Aerodynamic models updated for correct force orientation
- Suspensions: Improved roll centre calculations and documentation
- Motorsports: Corrected the sign of the lift force
- Motorbike: Updated AeroTest3D experiment for new VeSyMA aero handling
- BuildTools: Added OptimizeForOutputs setting
- TerrainServer: Improved robustness of FromClosestContactPoint
Why These Updates Matter
These enhancements make Dymola 2026x and Claytex 2025.2 more robust, accurate, and easier to integrate into modern workflows.
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Written by: Garron Fish – Chief Engineer
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