System Modeler 15.0   |  June 2026 More details

• Default to using Modelica Standard Library 4.1.0
• Local balance checking for easier localization of equation/variable mismatches
• Support for passing records in the external C function interface
• Replaceable components shown as parameters for improved discoverability
• Support for automatically sizing array connectors
• Improved accuracy and robustness of event-generating expressions
• Performance improvements through expanded use of parallelism
• Improved state selection
• Copy and export Icon and Diagram views as SVG
• Visualize and edit group images in parameter views
• Visualize and edit connection labels

System Modeler 14.3   |  August 2025 More details

• Full user control over code formatting in Modelica Text View
• Usability improvements when working in Modelica Text View
• Choose simulation time as date and time
• Plot simulation results with date and time axis
• Change parameter values using Control Panels during real-time simulation
• Support for spatialDistribution operator
• Support for external functions defining structural parts of a model
• Use expressions in graphical annotations to change the display of models based on configuration
• Include Modelica Standard Library 4.1.0 (experimental)
• Button for code formatting in the WYSIWYG documentation editor
• Drag and drop of images in the WYSIWYG documentation editor

System Modeler 14.2   |  January 2025 More details

• Assisted editing of records with bindings
• Assisted editing of function calls in modifications
• Support for selecting directories using directorySelector annotation
• Improved differentiation of functions and records

System Modeler 14.1   |  July 2024 More details

• Publish an explore to the cloud for easy sharing
• Assisted editing of modifications to redeclared classes
• Graphical editing of inputs to replaceable functions
• Graphical editing of record elements
• Automatic ground plane in animations
• Improved scaling of arrows in animations
• Text previews on search results in the documentation
• Improved control over messaging categories and strictness settings
• Easy-to-read formatting of code in messages

System Modeler 14.0   |  January 2024 More details

• Default to using Modelica Standard Library 4.0.0
• Automatic propagation of units though connections and equations
• Improved experimental detection of invalid uses of units and display units throughout models
• Flexible and automatic conversion of a very large selection of units in input fields and plots
• Choose preferred unit systems to use globally (SI, Imperial, US, ...)
• Class rename finds and updates all usages in the complete library and, optionally, in all loaded libraries
• Component rename finds and updates all usages in the complete library and, optionally, in all loaded libraries
• Snap to intersections between plot curves

System Modeler 13.3.1   |  August 2023

• Lowered severity of some error messages to warnings to create a transition period where users can improve their models
• Minor bug fixes

System Modeler 13.3   |  June 2023 More details

• Plot expressions of variables in Simulation Center
• Native System Modeler kernel and simulations on Apple Silicon
• Create easy-to-install System Modeler Archives with custom libraries and models
• Possibility to automatically convert user libraries to be compatible with Modelica Standard Library 4.0.0
• Continue working while validating and building
• Interactively change inputs to real-time simulations

System Modeler 13.2   |  December 2022 More details

• Improved Modelica language support in all areas, particularly in lookups, inner/outer and expandable connectors
• Better detection of invalid Modelica models
• Explore models and scenarios using interactive control panels
• Flattened view of simulation models in Model Center
• Context-aware navigation and help in Modelica Text View

System Modeler 13.1   |  June 2022 More details

• New task-oriented documentation with improved and new content and better organization
• Modelica Quick Reference documentation for quickly referencing Modelica language syntax and features
• Modelica language specification included in Documentation Center
• Improved support for high-resolution screen environments across all platforms
• New high-resolution icons throughout the user interface
• Support for installing and using the Visual Studio 2022 compiler on Windows
• Support for product activation using single sign-on

System Modeler 13.0   |  December 2021 More details

• Modeling of thermo-fluid systems using the Modelica Fluid library
• Refined solution of equation systems with variable structure
• Continue working while building and validating models in the background
• Visual and clear indication of missing components, broken connections and broken inheritance
• Include custom unit conversions in libraries for easy use by library users
• Reflect line style in plot legends
• Improved editing of plot markers
• Validation of model plots, with a clear indication of issues like missing variables

System Modeler 12.3   |  May 2021 More details

• Minor updates in 12.3.1 released June 2021
• Add plot markers and labels to model plots
• Easily add links and variable references to plot captions
• Drag and drop subplots to reorder them
• Drastically reduced result file sizes and improved simulation speed
• Parallel compilation resulting in faster building of models
• Easily enter parameter or variable values in any compatible unit
• Improved editing capabilities for model documentation
• Improved automatic model documentation
• View and edit revision information for models

System Modeler 12.2   |  December 2020 More details

• Stricter Modelica compliance checking, with improved error messages
• Show parameter values in icons using the chosen display unit
• Includes Modelica Standard Library 4.0.0 (not compatible with models built with 3.2.3; Modelica 3.2.3 still included)
• Improvements to 3D animations
• Use custom simulation time unit
• Add captions to plots
• Controls for exporting plot to image
• Complete GUI support for each and final keywords
• Hundreds of improvements to stability, messaging and performance

System Modeler 12.1   |  March 2020 More details

• Strict Modelica compliance checking, with improved error messages
• Customizable user modes simplify and adjust the interface in presentation and education scenarios
• Extended GUI support for the Modelica language
• Ships with Modelica Standard Library 3.2.3
• HTML export of model documentation
• Measurement tools in Simulation Center
• Multiple y axes for plotting signals using different units
• Easy zooming of plot axes
• Support for Modelica synchronous language elements and Modelica_Synchronous library
• Improved tearing for systems of equations
• Improved ability to recover from errors during simulation, such as asserts

System Modeler 12   |  April 2019 More details

• Support for FMI co-simulation export and import
• Significantly improved state selection algorithm
• Equation block browser for debugging and understanding models
• Built-in list of default icons to choose from when creating new models
• Easy disabling and enabling of components in a model through right-click or logical expressions
• Ability to select which view to show when opening a model (diagram, icon, text or documentation)
• Ability to add custom unit conversions
• Line-wrapping of the Modelica Text View and easy toggling of individual annotations
• Improved routing and editing of connection lines
• Clear display of active connector when creating connections
• Improved workflow when creating array connections
• Drastically improved performance of displaying and editing graphical views
• Ability to easily copy models from System Modeler into Wolfram Language desktop products
• Improved symbolic linearization in the Wolfram Language
• Synchronization of version numbers with the Wolfram Language

System Modeler 5.1   |  March 2018 More details

• New Wolfram Language interface, with expanded and streamlined capabilities
• Ability to share, collaborate and present models and analytics notebooks with any Wolfram Language user
• New, more informative typesetting of system models in the Wolfram Language
• Important parameter and variable settings available at the top level in a hierarchical model
• Parameters that do not affect the model in its current configuration can now be disabled
• Parameter and variable descriptions can now be edited directly in the parameters tab
• Ability to experiment with and change parameters for built-in example models
• Improved model search with grouped search results and filters

System Modeler 5.0   |  July 2017 More details

• A completely revamped engine
• Fully redesigned model icons for improved clarity, readability and presentability
• New Media built-in library simulates flow and phase changes of liquids and gases
• New Noise built-in library adds realism to simulations with reproducible noise generation
• Improvements to import and export with the latest FMI standard (2.0) allows interoperability with more tools than ever before
• Support for replaceable classes, allowing easy switching of submodels such as engines, tires, etc.
• Components can now be tracked individually in versioning control systems by allowing packages to be split into multiple files
• Significantly improved simulation performance for data-heavy models, including models using the Media library
• Interactively browse hundreds of complete model examples using WSMExamples
• Ability to programmatically optimize or modify parameters using WSMParametricSimulateValue

System Modeler 4.3   |  October 2016 More details

• Easy sharing of complete models, including all dependencies with Save Total Model feature
• Package models with stored plots, which will immediately be shown when simulating
• Support for custom units for plots and parameters in Simulation Center
• System Modeler educational and industry examples are now bundled with the product
• Improved performance when building models, browsing in Model Center and using WSMLink
• Improved diagram editor, making it easy to add points to connection lines for neat model diagrams
• Ability to drill down into model diagrams for components from the Wolfram Language
• Support for parallel simulation over different inputs to the model from the Wolfram Language

System Modeler 4.2   |  December 2015 More details

• Faster model compilation from Modelica code to simulation executables
• Model code generation decomposition, enabling support for larger simulation models
• Faster simulation result retrieval in the Wolfram Language
• Parameters and variables can be changed in specialized editors, including an array editor etc.
• Support for automatic object trajectories in the 3D animation view
• Support for model creation from time series and other data
• 64-bit version now available for Windows, allowing for large models and simulations

System Modeler 4.1   |  March 2015 More details

• Support for FMI import of models from other tools
• Reliability analysis of system models using reliability diagrams, fault trees and parametric lifetime distributions
• Improved unit support that enables input and plotting in user-chosen units
• Complete copy and paste support between models
• Better native look and feel on OS X
• Improved search and navigation in documentation
• Fully updated Modelica by Example book on the Modelica language
• Learn more

System Modeler 4.0.1   |  September 2014

• Japanese localization
• Improved search in Class Browser
• Fixed stop at steady-state functionality
• Improved stability of Model Center
• Quality improvements

System Modeler 4.0.0   |  July 2014 More details

• Library store with both free and paid model libraries that are verified to work with System Modeler
• Improved integrated documentation on System Modeler, model libraries and the Modelica language in a new Documentation Center
• Improved connectivity and deployment, including exporting FMI for immediate use in a large number of tools
• Support for easier model parameterizations and navigation of models, as well as improved text-based modeling and optimized drag-and-drop support
• New showcase environment for presentation of models
• Support for Linux
• Support for model creation from equations, system models or existing components from Mathematica
• Real-time support in simulations from Mathematica
• Integration with new Mathematica features such as plot legends and hybrid differential equation capabilities
• And more

System Modeler 3.0.2   |  February 2013

• Increased robustness of the activation system
• Improved stability of WSMLink
• Quality improvements

System Modeler 3.0.1   |  January 2013

• WSMLink documentation compatible with Mathematica 9
• WSMLink compatible with the trial version of Mathematica
• Certified installation programs for Mac OS X and Windows, to avoid malicious software warning during installation
• Support for Windows 8
• Quality improvements

System Modeler 3.0.0   |  May 2012 More details

General

• Welcome screen with quick-start videos for modeling, simulation and analysis, and other resources
• New license system with web activation and management through Wolfram User Portal
• Floating network license for all supported platforms

Model Libraries

• Support for Modelica standard library Version 3.1, with electrical, mechanical, magnetic and thermal domains, etc.
• Constrained 3D mechanical systems are now supported with MultiBody components and automatic 3D real-time animation
• Electromagnetic systems are now supported with the addition of the magnetic FluxTubes library
• Systems biology is now supported through the BioChem library and import/export for systems biology markup language (SBML)
• Support for handling different versions of libraries
• Improved IntroductoryExamples package

Documentation

• Documentation is now available from the web
• Dramatically improved documentation of built-in model libraries, including parameters, connections, links to examples, etc.
• Automatically generated documentation for models, packages, etc.
• WYSIWYG editing of embedded HTML documentation makes it easy to add professional-looking documentation to models
• Improved model and experiment publishing feature makes it easy to automatically publish your models, visualizations, etc.

Modeling

• Model browser is now divided into four sections: Examples, Libraries, User Classes and Recently Used Components
• Faster browsing of model libraries and components
• Connections between components are now color-coded to indicate domains
• Automatically create hierarchical models by selecting components in the diagram view
• Easily drill into components in hierarchical models to configure them (set parameters, initial values, etc.)
• Interactive support for replaceable components, allowing reconfigurable models
• Annotations are now by default hidden in the Text View for improved readability

Simulation

• Improved visualization aesthetics with plot themes, grid styles, etc.
• Improved visualization functionality with restricted time range
• Support for attaching shapes (DXF or OBJ formats) to multibody components
• Support for attaching a camera to multibody components
• Import of .mat and .txt data that can directly drive models
• Support for storing parameter settings from an experiment within the model or generating a new model with those settings
• Dynamic state selection is now supported, including full configurability at model or package levels
• Support for the Modelica annotation Evaluate, allowing parameter inlining for improved simulation performance
• Generic TCP/IP-based communication interface for connecting simulations with other applications
• Possibility to synchronize simulation with real time
• Support for real-time updating of 2D and 3D visualizations
• New fixed-step explicit solvers suitable for real time: explicit Euler, Heun and fourth-order Runge–Kutta

Analysis

• New Wolfram System Modeler Link package for connecting Mathematica to System Modeler
• Extensive documentation with tutorials and hundreds of examples
• Directly simulate any Modelica model with control over parameters, initial values, solvers, etc.
• Access to simulation data, including interpolating functions, events, etc.
• Automatically parallelized parameter sweeps
• Directly compute parameter sensitivities for model calibration and optimization
• Immediate visualization of simulation results, such as parameter sweeps, sensitivities, etc.
• Access to Modelica model data, including equations, variables, parameters, etc.
• Support for updating Modelica models, such as parameter and initial values
• Direct support for model linearization typically used for control design
• Direct support for finding steady-state or equilibrium states for models
• Full integration with control system functionality