DPSIM Changelog

1.1.0.2 – September 7, 2026

  • Added Layout toolbar commands to add or remove routing nodes on a selected stream.
  • Stream node commands now follow stream selection and canvas lock state automatically.

1.1.0.1 – August 27, 2026

  • Expanded the Stream Inspector with direct stream selection and separate simulated and experimental data views.
  • Added reference-stream comparisons for mass recovery, component recovery and D80 reduction ratio.
  • Added PSD and component curves from multiple streams to the same chart, with individual colors, line styles, widths and markers.
  • Added chart controls for copying, exporting, configuring and locking the current stream selection.
  • Improved chart behavior when navigating between individual streams and equipment inlet and outlet streams.
  • Improved the Stream Inspector layout, default size and panel proportions while preserving user-customized layouts.
  • Corrected inconsistent P80/D80 values and cumulative passing calculations in stream displays.
  • Improved stream curve labels so their equipment and connection are easier to identify.
  • Added toolbar shortcuts to the online User Guide and Models Reference.

1.1.0.0 – August 25, 2026

  • Added Bimodal Rosin-Rammler Comminution for fitting product size distributions with two particle populations, including global and component-specific curves with closed size and component mass balances.
  • Added Rosin-Rammler Product Comminution for defining a mass-closed product PSD from D80, curve slope and a fine-size passing plateau, globally or by component.
  • Prevented the Rosin-Rammler comminution models from producing a product coarser than their feed; incompatible targets are now limited and reported.
  • Added Flow Rate Transition, a Feed model for representing an intentional change in solids and water throughput between steady-state sections while preserving feed PSD and component composition.
  • Added Product Assay Separation, which calculates mass-closed component recoveries from concentrate and tail grade targets with anchor, reconciliation and fallback modes.
  • Added Target Product P80 Partition, which calculates a two-product partition curve from a requested coarse- or fines-product P80 for the global PSD or individual components.
  • Added dedicated, component-aware setup windows for Product Assay Separation, Target Product P80 Partition and both Rosin-Rammler comminution models.
  • Expanded stream flyout configuration with arbitrary Dx and percent-passing fields, plus mass and component recovery relative to a selected reference stream.
  • Added a complete stream-details window opened by double-clicking a stream, with stream data, size distribution, component-by-size data and the PSD chart in one view.
  • Corrected component passing curves in stream charts so the finest size class is included consistently with the global PSD.

1.0.0.4 – August 22, 2026

  • Added Component Recovery Separation, Three-Parameter Recovery Separation and Basic Separation to the Concentration > Separators model menu.
  • Renamed the Density Regulator model in the interface to Pulp Dilution Control. Existing project files remain compatible.
  • Renamed Equipment Splitter in the interface to Stream Splitter.
  • Added periodic online update verification. DPSIM Static Module can remain offline for up to seven days after a successful check.

1.0.0.3 – August 18, 2026

  • Corrected an error that could occur when closing DPSIM after installation under Program Files.
  • User preferences are now stored in the Windows user profile, where they can be saved without administrator access.
  • Existing preferences stored beside the application remain compatible and are migrated when settings are next saved.

1.0.0.2 – August 13, 2026

  • Expanded the End User License Agreement to cover licensing, engineering responsibilities, project data, privacy, updates, support, technical validity and applicable legal protections.
  • Synchronized the terms displayed by the installer, the application and the DPSIM website.
  • Existing installations will request acceptance of the updated terms before continuing.

1.0.0.1 – July 20, 2026

  • Improved steady-state simulation performance, especially for repeated flowsheet iterations.
  • Changed Results Sheet to show streams as columns by default and added a transpose option.
  • Improved water-addition visibility when a Density Regulator is connected to a Water Feed.
  • Corrected stream-data editing and refresh behavior in the right-side inspection panel.
  • Improved automatic error reports so exception details can be reviewed and sent with a problem report.
  • Simplified the Static Module interface to keep the public release focused on steady-state simulation and results reporting.
  • Corrected the startup example flowsheet layout and several interface stability issues.

1.0.0.0 – Initial Public Release

  • Build and edit steady-state mineral processing flowsheets.
  • Configure documented unit-operation models.
  • Run static simulations and review stream and equipment results.
  • Export result sheets and engineering reports.
  • Install DPSIM per user without administrator elevation in the standard configuration.
  • Receive automatic DPSIM updates and see a What's New summary after an update.