OpenModelica master-fmi-fmpy from 2026-06-12 05:11:34 to 2026-06-13 14:06:17

Summary

OMC Commits8
Libraries Changed0
Number of Improvements40
Number of Regressions3
Number of Performance Improvements6
Number of Performance Regressions6

OpenModelica Changes

CommitDateAuthorSummary
081ba7eca22026-06-12 23:55:04 +0200Adrian Pop[BackEnd] Tearing: only force degree-1 $START vars when actually singular (#15433) (#15836)
b4833fb10c2026-06-12 21:30:12 +0200Martin Sjölund[NB] Fix symbolic differentiation losing derivative function bodies (#15834)
c62759fd852026-06-12 20:54:20 +0200Martin Sjölund[BackEnd] Fail getWhenEquationExpr instead of returning uninitialized outputs (#15835)
beba0b158c2026-06-12 17:45:54 +0200Adeel AsgharSet QSG_RHI_BACKEND to opengl on Windows (#15831)
adf3d2fad32026-06-12 16:30:55 +0200Adeel AsgharFix DPI awareness Qt warning on Windows (#15829)
e70886b5b12026-06-12 16:13:28 +0200Per ÖstlundFix some OMNotebook issues (#15827)
84e6b2064a2026-06-12 13:59:18 +0200Adrian Pop[BackEnd] BackendDump.dumpMatching2: loop instead of recursion (fix stack overflow) (#15825)
84c56250462026-06-12 13:37:43 +0200Henning Kiel[OMNotebook] fix for Qt6 (#15745)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
d357aff2026-06-12 13:26:07 +0200AndreasFix OMSimulator submodule update when directory layout changes (#287)
12a01782026-06-06 12:43:09 +0200Adrian Popdrop v1.25 and add v1.27 (#286)

Library Changes

LibraryChange

Models Affected

AixLibAixLib.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)SimCode performance 24.52 → 13.67
BuildingSystemsBuildingSystems.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)SimCode performance 18.72 → 9.87
Buildings_11Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:07:02 → 1.25
Buildings_12Buildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)Compile → Failed
Buildings_12Buildings.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)SimCode performance 7.08 → 23.28
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:07:02 → 1.21
Buildings_latestBuildings.Air.Systems.SingleZone.VAV.Examples.Guideline36 (sim)SimCode performance 12.08 → 7.09
Buildings_latestBuildings.DHC.Loads.BaseClasses.Examples.CouplingRCZ6 (sim)Failed → Verify
Buildings_latestBuildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)Failed → Compile
IDEASIDEAS.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)SimCode performance 7.68 → 21.78
OpenIPSLOpenIPSL.Examples.Tutorial.Example_4.Experiments.SMIB (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.ES.AC7B (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.ES.AC8B (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.ES.ESST1A (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.ES.EXNI (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.ES.SCRX (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.ES.URST5T (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.PSS.IEEEST (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.PSS.PSS2B (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.TG.HYGOV (sim)Compile → Simulate
OpenIPSLOpenIPSL.Tests.Controls.PSSE.TG.IEESGO (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Examples.DAEMode.SMIB_Examples.Example_1.Network3 (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Examples.RaPIdExperiments.Mostar (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Examples.SevenBus.Network (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.ESAC2A (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.ESST1A (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.ESST4B (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.EXAC1 (sim)Simulate → Compile
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.EXNI (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.EXST1 (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.SCRX (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.ST5B (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.ES.URST5T (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.PSS.IEEEST (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.PSS.PSS2B (sim)Compile → Simulate
OpenIPSL_2.0.0OpenIPSL.Tests.Controls.PSSE.TG.HYGOV (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Examples.Tutorial.Example_4.Experiments.SMIB (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.ES.AC7B (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.ES.AC8B (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.ES.ESST1A (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.ES.EXNI (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.ES.SCRX (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.ES.URST5T (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.PSS.IEEEST (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.PSS.PSS2B (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.TG.HYGOV (sim)Compile → Simulate
OpenIPSL_devOpenIPSL.Tests.Controls.PSSE.TG.IEESGO (sim)Compile → Simulate
PhysiolibraryPhysiolibrary.Organs.Lungs.Examples.MeanLungsTest (sim)Compile → Failed
SOFCPoliMiSOFCPoliMi.Tests.BenchmarkCammarata (sim)SimCode performance 16.52 → 33.65
SOFCPoliMiSOFCPoliMi.Tests.BenchmarkLinConcLosses (sim)SimCode performance 16.21 → 30.49
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_28_M_28 (sim)Failed → Verify
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_640 (sim)Compile performance 0:03:49 → 0:01:54
ScalableTestSuiteScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_1600 (sim)Simulate performance 40.17 → 0:01:30
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_112_M_112 (sim)Failed → Verify
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_25600 (sim)Simulate performance 21.57 → 42.72