OpenModelica v1.24-fmi-fmpy from 2026-01-11 12:18:37 to 2026-02-01 20:18:06

Summary

OMC Commits	0
Libraries Changed	19
Number of Improvements	26
Number of Regressions	23
Number of Performance Improvements	4
Number of Performance Regressions	3

OpenModelica Changes

Commit	Date	Author	Summary

OpenModelicaLibraryTesting Changes

Commit	Date	Author	Summary
f269188	2025-12-11 11:52:34 +0100	Adrian Pop	add extra simflags gbode (#262)
a8b7fb3	2025-12-04 12:35:20 +0100	Adrian Pop	update HelmholtzMedia (#261)

Library Changes

Library	Change
AES	From 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
Buildings_11	From 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/6bfe74b8c6d2b6f109b99d778b1ceff796ecec7a.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_12	From 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/57c9b95f279979d6cfe24e1ffccf061bfad00a88.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_latest	From 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/c8c3f3c57683df2999dc6bda104dace1cef6a7bc.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_master	From 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
ClaRa	From version 1.9.0 (https://github.com/xrg-simulation/ClaRa-official/archive/d0b3d7d61cbf534db51ada4217b4aaea9cf5f557.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 1.9.0 (https://github.com/xrg-simulation/ClaRa-official/archive/d0b3d7d61cbf534db51ada4217b4aaea9cf5f557.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
Greenhouses	From 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_latest	From 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 (9f7f280f19858e918a0750739a4fc0e5c9914d2d) 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
IDEAS	From version 3.0.0 (https://github.com/open-ideas/IDEAS/archive/a7be00b7e07943c0acda1b5799a8d32bea896d7b.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 3.0.0 (https://github.com/open-ideas/IDEAS/archive/a7be00b7e07943c0acda1b5799a8d32bea896d7b.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
MEV	From version 1.1.1 (https://github.com/looms-polimi/MEV/archive/04d85ca089f284081ca2df4ca68039780f47a90f.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 1.1.1 (https://github.com/looms-polimi/MEV/archive/04d85ca089f284081ca2df4ca68039780f47a90f.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_4.0.0	From version 4.0.0+maint.om (96032134c36668898e1693e69bd9f81aa38de3dd) 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+maint.om (96032134c36668898e1693e69bd9f81aa38de3dd) 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_4.1.0	From 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_trunk	From 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
OpenIMDML_main	From version 1.0.0-main (3447b44ba063802dce7fe7c66ce493d658dc3136) 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-main (3447b44ba063802dce7fe7c66ce493d658dc3136) 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_2.0.0	From 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
SOFCPoliMi	From version master (85098e6eef87802fc5a24ea56db0d6a6ccadbb38) 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 master (85098e6eef87802fc5a24ea56db0d6a6ccadbb38) 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_noopt	From 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
ScalableTestSuite	From 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_dev	From 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 (e68777c7a5c29ff2ee1ef201c8b21ec005b8a8e8) 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

AES	AES.Coursework.ThermSys_case_studies.Heat_network.HC_SS_case_001 (sim)	Simulate → FrontEnd
AES	AES.Devel_test_models.Test_substation_001 (sim)	Simulate → FrontEnd
Buildings_11	Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimarySecondaryEconomizer (sim)	Failed → Compile
Buildings_11	Buildings.DHC.ETS.Combined.Examples.ChillerOnly (sim)	Failed → Verify
Buildings_11	Buildings.Fluid.DXSystems.Cooling.WaterSource.Examples.MultiStage (sim)	Verify → Compile
Buildings_11	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (sim)	Failed → Compile
Buildings_11	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)	Verify → Failed
Buildings_11	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case685 (sim)	Failed → Compile
Buildings_11	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)	Verify → Failed
Buildings_11	Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.ASHRAE2006Spring (sim)	Failed → Compile
Buildings_11	Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.ASHRAE2006Summer (sim)	Failed → Compile
Buildings_12	Buildings.Applications.DataCenters.ChillerCooled.Examples.NonIntegratedPrimarySecondaryEconomizer (sim)	Compile → Verify
Buildings_12	Buildings.DHC.ETS.Combined.Validation.ChillerOnly (sim)	Verify → Failed
Buildings_12	Buildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ1 (sim)	Simulate performance 11.02 → 4.36
Buildings_12	Buildings.DHC.Plants.Steam.Examples.SingleBoiler (sim)	Verify → Compile
Buildings_12	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case610 (sim)	Failed → Compile
Buildings_12	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case640 (sim)	Verify → Failed
Buildings_12	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case670 (sim)	Compile → Failed
Buildings_12	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case680FF (sim)	Verify → Failed
Buildings_12	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)	Failed → Compile
Buildings_12	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)	Verify → Failed
Buildings_12	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindow (sim)	Compile performance 0:01:45 → 0:03:42
Buildings_12	Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)	Compile → Failed
Buildings_latest	Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimarySecondaryEconomizer (sim)	Verify → Failed
Buildings_latest	Buildings.Applications.DataCenters.ChillerCooled.Examples.NonIntegratedPrimarySecondaryEconomizer (sim)	Verify → Compile
Buildings_latest	Buildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ6 (sim)	Failed → Compile
Buildings_latest	Buildings.DHC.Plants.Steam.Examples.SingleBoiler (sim)	Compile → Verify
Buildings_latest	Buildings.Fluid.DXSystems.Cooling.WaterSource.Examples.MultiStage (sim)	Compile → Verify
Buildings_latest	Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)	Simulate performance 4.40 → 0:14:02
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case640 (sim)	Failed → Compile
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case680 (sim)	Failed → Verify
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case680FF (sim)	Failed → Verify
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case685 (sim)	Compile → Failed
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)	Failed → Compile
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)	Failed → Verify
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)	Verify → Failed
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindow (sim)	Failed → Compile
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)	Failed → Compile
Buildings_latest	Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowInteriorShade (sim)	Failed → Compile
Chemical_master	Chemical.Obsolete.Examples.AcidBase.Phosphate (sim)	Simulate → Compile
ClaRa	ClaRa.Components.Furnace.Check.Test_burner_adiabatic_fuelDrying (sim)	Compile → Failed
Greenhouses	Greenhouses.Examples.GlobalSystem_1 (sim)	Failed → Compile
IBPSA_latest	IBPSA.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)	Failed → Compile
IDEAS	IDEAS.Examples.Tutorial.Example10 (sim)	Compile → Failed
IDEAS	IDEAS.Examples.Tutorial.Example8 (sim)	Compile → Failed
MEV	MEV.Test.TestStandardPatient (sim)	Simulate → Compile
Modelica_4.0.0	Modelica.Electrical.Analog.Examples.SimpleTriacCircuit (sim)	Compile → Verify
Modelica_4.0.0	Modelica.Mechanics.MultiBody.Examples.Loops.EngineV6 (sim)	Failed → Verify
Modelica_4.1.0	Modelica.Mechanics.MultiBody.Examples.Loops.EngineV6 (sim)	Verify → Failed
Modelica_trunk	Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint (sim)	Verify → Compile
OpenIMDML_main	OpenIMDML.Examples.MultiDomainExamples.MultiDomainSinglePhaseInductionMotors.MultiDomainSPIM (sim)	Compile performance 0:01:56 → 14.48
OpenIPSL_2.0.0	OpenIPSL.Examples.Tutorial.Example_1.Example_1 (sim)	Compile performance 13.79 → 44.82
SOFCPoliMi	SOFCPoliMi.Tests.BenchmarkSalogniColonnaIEA (sim)	Failed → Simulate
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type1.Type1_N_4_M_4 (sim)
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type1.Type1_reduced_N_2_M_4 (sim)
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type2.Type2_noTap___N_3_M_4 (sim)
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type2.Type2_tapEv___N_3_M_4 (sim)
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type2.Type2_tapEv___N_4_M_4 (sim)
ScalableTestGrids_noopt	ScalableTestGrids.Models.Type2.Type2_tapNoEv_N_3_M_4 (sim)
ScalableTestSuite	ScalableTestSuite.Mechanical.Strings.ScaledExperiments.StringModelica_N_32 (sim)	Failed → Verify
ScalableTestSuite	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SteamPipe_N_160 (sim)	Compile performance 0:03:24 → 0:01:48
ThermofluidStream_dev	ThermofluidStream.Examples.ReverseHeatPump (sim)	Simulate performance 0:02:15 → 0:01:16