OpenModelica v1.25-fmi-fmpy from 2026-01-11 16:19:22 to 2026-01-25 01:43:30

Summary

OMC Commits0
Libraries Changed18
Number of Improvements24
Number of Regressions21
Number of Performance Improvements5
Number of Performance Regressions7

OpenModelica Changes

CommitDateAuthorSummary

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
f2691882025-12-11 11:52:34 +0100Adrian Popadd extra simflags gbode (#262)
a8b7fb32025-12-04 12:35:20 +0100Adrian Popupdate HelmholtzMedia (#261)

Library Changes

LibraryChange
AESFrom version main (b4afa4f8240cbd51a0496cf107f1ab8fc8d45cfa) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to main (9df2563bbfc594406229273baef9fe15243514ec) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
BuildingSystemsFrom version 2.0.0-master (37f23a121434b999f66f0bf7ee16bb67ad8b2b83) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 2.0.0-master (37f23a121434b999f66f0bf7ee16bb67ad8b2b83) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Buildings_11From version 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/1e5a28b58b94bccb7093d37a9bebd9c0bfc51881.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/1e5a28b58b94bccb7093d37a9bebd9c0bfc51881.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Buildings_12From version 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/19ef4ed52eab46e4b8aecbcaa28655e58d0c1244.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/19ef4ed52eab46e4b8aecbcaa28655e58d0c1244.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/944f6639087d1f654fddde90873a352e042f09c4.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/ef1ad979e95241e5744999dba8c743b7d43e0355.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
ChemicalFrom version 2.0.0 (https://github.com/MarekMatejak/Chemical/archive/2da36279db8adf3effa142a8dfa270c40b0e517d.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 2.0.0 (https://github.com/MarekMatejak/Chemical/archive/2da36279db8adf3effa142a8dfa270c40b0e517d.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Chemical_masterFrom version 2.0.1-master (9d5e4559c8351618b68821e0eeba7b1e4a6aa8f5) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 2.0.1-master (218185566941eeb217279cbad000583ee70836a1) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
GreenhousesFrom version 1.0.0-master (845525ed51e3048447839e8896e25f3690c02eb9) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 1.0.0-master (845525ed51e3048447839e8896e25f3690c02eb9) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
IBPSA_latestFrom version 4.0.0-master (c60b634f027173358665c68fa662e42ad3999477) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 4.0.0-master (231503d1bb4eea092518c814d559204825d808d3) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
LEPSE_mainFrom version main (979cd7f6df0e8e5b1d6c16d75694bc219be78bdb) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to main (979cd7f6df0e8e5b1d6c16d75694bc219be78bdb) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Modelica_3.2.3From version 3.2.3+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/efd981a1176f124938d6d6759f7c09e0fbf55ddf.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 3.2.3+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/efd981a1176f124938d6d6759f7c09e0fbf55ddf.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Modelica_4.1.0From version 4.1.0+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/7a4bf7de77a3986e8eb1e88cbb515d646f78f834.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 4.1.0+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/7a4bf7de77a3986e8eb1e88cbb515d646f78f834.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
Modelica_trunkFrom version trunk (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/8da4261a74022a8a372eab4a0b59f5b637c352a9.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to trunk (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/baaac1f647971186604ee33ae832824e8eb75007.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
OpenIPSL_2.0.0From version 2.0.0 (https://github.com/OpenIPSL/OpenIPSL/archive/052ec37cdfd40e6e5506ec146d98afd40fe2792f.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 2.0.0 (https://github.com/OpenIPSL/OpenIPSL/archive/052ec37cdfd40e6e5506ec146d98afd40fe2792f.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
OpenIPSL_devFrom version 3.1.0-dev (https://github.com/OpenIPSL/OpenIPSL/archive/5a7f68b88d91a9d0e14b1c1c5290bd2c9d6de3e5.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 3.1.0-dev (https://github.com/OpenIPSL/OpenIPSL/archive/88288b0f9178661ae4e2209b5fba9b5848cbdbbc.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
ScalableTestGrids_nooptFrom version 1.2.0 (https://github.com/PowerGrids/ScalableTestGrids/archive/f18d08e87f948a85992343913e1adfd7d24cad95.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 1.2.0 (https://github.com/PowerGrids/ScalableTestGrids/archive/f18d08e87f948a85992343913e1adfd7d24cad95.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
ScalableTestSuiteFrom version 2.2.0-master (ce9eedecd9f6c487d11cfc2ed9724e75c0229323) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 2.2.0-master (ce9eedecd9f6c487d11cfc2ed9724e75c0229323) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit
ThermofluidStream_devFrom version 1.2.0-main (d4b85ecb92d18bf4a86d09bca5a5ab2c8737a851) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 1.2.0-main (d4b85ecb92d18bf4a86d09bca5a5ab2c8737a851) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Jan 8 2026, 06:52:19) [GCC 11.4.0] --version show program's version number and exit

Models Affected

AESAES.Coursework.ThermSys_case_studies.Heat_network.HC_SS_case_001 (sim)Simulate → FrontEnd
AESAES.Devel_test_models.Test_substation_001 (sim)Simulate → FrontEnd
BuildingSystemsBuildingSystems.Fluid.Geothermal.Aquifer.Validation.NumberWells (sim)Simulate → Failed
BuildingSystemsBuildingSystems.Technologies.SolarThermal.Examples.BigCollectorInstallationWithStorage (sim)Failed → Compile
Buildings_11Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimarySecondaryEconomizer (sim)Failed → Compile
Buildings_11Buildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ6 (sim)Compile performance 0:03:53 → 0:02:17
Buildings_11Buildings.DHC.Loads.Combined.Examples.BuildingTimeSeriesWithETS (sim)Compile performance 0:03:52 → 0:02:14
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Failed → Verify
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)Compile → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Failed → Verify
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)Compile performance 0:01:52 → 0:03:25
Buildings_11Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Failed → Compile
Buildings_12Buildings.DHC.Loads.Cooling.Examples.BuildingTimeSeriesWithETS (sim)Verify → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case685 (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950 (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950FF (sim)Verify → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindow (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Winter (sim)Failed → Compile
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (sim)Failed → Compile
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Failed → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case610 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.Initialization.MixedAir (sim)Compile performance 0:01:39 → 0:02:51
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Compile performance 0:01:54 → 0:03:34
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowInteriorShade (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Failed → Compile
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Winter (sim)Failed → Compile
ChemicalChemical.Obsolete.Examples.AcidBase.WaterSelfIonization (sim)Simulate → Compile
Chemical_masterChemical.Obsolete.Examples.AcidBase.Phosphate (sim)Simulate → Compile
Chemical_masterChemical.Obsolete.Examples.Hemoglobin.Joels57 (sim)Compile performance 0:04:27 → 0:09:53
GreenhousesGreenhouses.Examples.GlobalSystem_1 (sim)Failed → Compile
IBPSA_latestIBPSA.Fluid.Geothermal.Borefields.Examples.RectangularBorefield (sim)Compile performance 0:02:17 → 0:01:08
IBPSA_latestIBPSA.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)Failed → Compile
LEPSE_mainLEPSE.Examples.KKT_1 (sim)Verify → Simulate
Modelica_3.2.3Modelica.Electrical.Analog.Examples.OpAmps.Multivibrator (sim)Compile → Simulate
Modelica_3.2.3Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint (sim)Compile → Verify
Modelica_3.2.3Modelica.Mechanics.MultiBody.Examples.Elementary.PointGravityWithPointMasses2 (sim)Verify → Compile
Modelica_4.1.0Modelica.Electrical.Analog.Examples.OpAmps.Multivibrator (sim)Simulate → Compile
Modelica_4.1.0Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMPM_FieldWeakening (sim)Compile → Verify
Modelica_4.1.0Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint (sim)Compile → Verify
Modelica_trunkModelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint (sim)Compile → Verify
OpenIPSL_2.0.0OpenIPSL.Examples.IEEE14.IEEE_14_Buses (sim)Simulate performance 24.93 → 45.34
OpenIPSL_2.0.0OpenIPSL.Examples.Tutorial.Example_1.Example_1 (sim)Compile performance 0:04:47 → 14.92
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Line_Opening (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_reduced_N_3_M_4 (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_noTap___N_4_M_4 (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapEv___N_4_M_4 (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_4_M_4 (sim)
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_14_M_14 (sim)Failed → Verify
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_14_M_14 (sim)Verify → Failed
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_320 (sim)Verify → Failed
ScalableTestSuiteScalableTestSuite.Elementary.Tables.ScaledExperiments.TimeTable_N_1000 (sim)Compile performance 58.73 → 0:01:54
ThermofluidStream_devThermofluidStream.Examples.ReverseHeatPump (sim)Simulate performance 0:02:15 → 0:01:00
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.FlowRes (sim)FrontEnd performance 14.70 → 7.27 Simulate performance 34.10 → 58.27