OpenModelica v1.27-cpp from 2026-09-05 08:50:30 to 2026-09-12 18:38:51

Summary

OMC Commits	2
Libraries Changed	18
Number of Improvements	50
Number of Regressions	3
Number of Performance Improvements	3
Number of Performance Regressions	8

OpenModelica Changes

Commit	Date	Author	Summary
562f07f037	2026-09-10 00:53:11 +0200	Martin Sjölund	FMU export: report the states' nominal values (#16648)
4a7248c1ab	2026-09-06 09:40:57 +0200	Martin Sjölund	Fix dependencies in packages (#16597)

OpenModelicaLibraryTesting Changes

Commit	Date	Author	Summary
5b24b0b	2026-09-12 09:47:08 +0200	Martin Sjölund	Give each runner a working directory of its own (#360)
ef783c4	2026-09-12 07:53:22 +0200	Martin Sjölund	Add netcdf to the docker image

Library Changes

Library	Change
AixLib	Configuration hash (OMC settings or the testing script changed)
BuildingSystems	Configuration hash (OMC settings or the testing script changed)
Buildings_11	From version 11.1.2-maint.11.x (266c975c250742658e867a8187ae52786cf1faee) to 11.1.2-maint.11.x (54efcd7546501f1a2d86e42eb827548a06f4713f)
Buildings_12	From version 12.1.2-maint.12.x (4e96182ec2ce24ea97d8d5b345603ad26760fe60) to 12.1.2-maint.12.x (0600dc3f0972715f5f0f5c3d9cb7fe6872f15bf8)
Buildings_latest	From version 14.0.0-master (ec22b31260bb07185fe3e5196a7a64bca1d4c739) to 14.0.0-master (4736a77498afdaaa9356f0fe3bc768b24a510020)
ClaRa	Configuration hash (OMC settings or the testing script changed)
ClaRa_dev	Configuration hash (OMC settings or the testing script changed)
Dynawo_dev	From version 1.8.0-master (62d451ac55da8dd6c0331d1a44afa67cb0ac79ed) to 1.8.0-master (af64b9ec47e44cfbc23163b777493a06aca9ef8f)
IBPSA_latest	From version 4.0.0-master (0c256fa78768dd5edaff38b13eca1b1b01af2bf4) to 4.0.0-master (eb357d2fd43cd79b9fc43eb13399fc69a02f5c09)
ModelicaTest_3.2.3	From version 3.2.3+maint.om (efd981a1176f124938d6d6759f7c09e0fbf55ddf) to 3.2.3+maint.om (cf92afa70b1402a3d591ce8fe183043966e7bf42)
Modelica_trunk	From version trunk (dca7ebccce0d491dd8602af939ccba11c74a32ed) to trunk (8ee553049a567efb375b80e6b0bad7363c427300)
PowerGrids	Configuration hash (OMC settings or the testing script changed)
PowerGrids_dev	From version 2.0.0-develop (2cf42ecfc2566d89533b466431306e956585d30b) to 2.0.0-develop (2d16dbbc58f49cd9448610bfd3691018dc22ff79)
PowerGrids_symb_jac	Configuration hash (OMC settings or the testing script changed)
ScalableTestSuite	Configuration hash (OMC settings or the testing script changed)
ScalableTestSuite_noopt	Configuration hash (OMC settings or the testing script changed)
ThermofluidStream	Configuration hash (OMC settings or the testing script changed)
ThermofluidStream_dev	Configuration hash (OMC settings or the testing script changed)

Models Affected

AixLib	AixLib.Obsolete.Year2022.Examples.NcDataReader (sim)	Templates → Simulate
BuildingSystems	BuildingSystems.Utilities.NetCDF_DataReader.ExampleNcDataReader (sim)	Templates → Simulate
Buildings_11	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.GFunction_SmallScaleValidation (sim)	Simulate → Verify
Buildings_11	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Analytic_20Years (sim)	Compile → Verify
Buildings_11	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.FiniteDifference_1Week (sim)	Compile → Verify
Buildings_11	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)	Compile → Verify
Buildings_11	Buildings.Fluid.Geothermal.Borefields.Examples.Borefields (sim)	Compile → Verify
Buildings_11	Buildings.Fluid.Geothermal.Borefields.Validation.Sandbox (sim)	Compile → Verify
Buildings_12	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.GFunction_SmallScaleValidation (sim)	Simulate → Verify
Buildings_12	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Analytic_20Years (sim)	Compile → Verify
Buildings_12	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.FiniteDifference_1Week (sim)	Compile → Verify
Buildings_12	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)	Compile → Verify
Buildings_12	Buildings.Fluid.Geothermal.Borefields.Examples.Borefields (sim)	Compile → Verify
Buildings_12	Buildings.Fluid.Geothermal.Borefields.Validation.Sandbox (sim)	Compile → Verify
Buildings_latest	Buildings.DHC.Plants.Steam.Examples.SingleBoiler (sim)	Verify → Compile
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.GFunction_SmallScaleValidation (sim)	Simulate → Verify
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Analytic_20Years (sim)	Compile → Verify
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.FiniteDifference_1Week (sim)	Compile → Verify
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)	Compile → Verify
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.Examples.Borefields (sim)	Compile → Verify
Buildings_latest	Buildings.Fluid.Geothermal.Borefields.Validation.Sandbox (sim)	Compile → Verify
ClaRa	ClaRa.Components.Utilities.Blocks.Check.testMatrixReader (sim)	Compile → Verify
ClaRa_dev	ClaRa.Components.Utilities.Blocks.Check.testMatrixReader (sim)	Compile → Verify
Dynawo_dev	Dynawo.Examples.Nordic.TestCases.LoadFlow (sim)	SimCode → Templates
IBPSA_latest	IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Analytic_20Years (sim)	Compile → Simulate
IBPSA_latest	IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)	Compile → Simulate
IBPSA_latest	IBPSA.Fluid.Geothermal.Borefields.Examples.Borefields (sim)	Compile → Simulate
IBPSA_latest	IBPSA.Fluid.Geothermal.Borefields.Validation.Sandbox (sim)	Compile → Simulate
IBPSA_latest	IBPSA.Utilities.IO.Files.Examples.JSONWriter (sim)	Templates → Simulate
ModelicaTest_3.2.3	ModelicaTest.Blocks.FilterTests.AllOptions (sim)	Simulate performance 22.16 → 47.09
Modelica_trunk	Modelica.Electrical.PowerConverters.Examples.ACAC.SoftStarter (sim)	Compile → Simulate
Modelica_trunk	Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_YD (sim)	Simulate → Verify
PowerGrids	PowerGrids.Controls.Test.TestRampTrackingFilter (sim)	Compile → Verify
PowerGrids_dev	PowerGrids.Controls.Test.TestRampTrackingFilter (sim)	Compile → Verify
PowerGrids_symb_jac	PowerGrids.Controls.Test.TestRampTrackingFilter (sim)	Compile → Verify
ScalableTestSuite	ScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_28_M_28 (sim)	Simulate performance 0.05 → 0:04:02
ScalableTestSuite	ScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_40_M_40 (sim)	Simulate performance 0.15 → 0:04:02
ScalableTestSuite	ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)	SimCode performance 12.80 → 7.24
ScalableTestSuite	ScalableTestSuite.Elementary.ParameterArrays.ScaledExperiments.Table_N_100_M_100 (sim)	Compile → Verify
ScalableTestSuite	ScalableTestSuite.Elementary.ParameterArrays.ScaledExperiments.Table_N_140_M_140 (sim)	Compile → Verify
ScalableTestSuite	ScalableTestSuite.Elementary.ParameterArrays.ScaledExperiments.Table_N_200_M_200 (sim)	Compile → Verify
ScalableTestSuite	ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_3200 (sim)	Compile performance 0:01:03 → 28.42
ScalableTestSuite	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_6400 (sim)	Templates → Simulate
ScalableTestSuite_noopt	ScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_28_M_28 (sim)	Simulate performance 0.05 → 0:04:02
ScalableTestSuite_noopt	ScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_40_M_40 (sim)	Templates → Compile
ScalableTestSuite_noopt	ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_640 (sim)	Simulate performance 11.66 → 20.29
ScalableTestSuite_noopt	ScalableTestSuite.Elementary.ParameterArrays.ScaledExperiments.Table_N_100_M_100 (sim)	Compile → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Elementary.ParameterArrays.ScaledExperiments.Table_N_140_M_140 (sim)	Compile → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Elementary.ParameterArrays.ScaledExperiments.Table_N_200_M_200 (sim)	Compile → Verify
ScalableTestSuite_noopt	ScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_3200 (sim)	Compile performance 33.83 → 0:01:00
ScalableTestSuite_noopt	ScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_6400 (sim)	Simulate → Templates
ScalableTestSuite_noopt	ScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)	Simulate performance 5.33 → 14.83
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_3200 (sim)	Simulate → Compile
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_3200 (sim)	Compile performance 0:01:46 → 56.90
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_6400 (sim)	Templates → Compile
ScalableTestSuite_noopt	ScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CounterCurrentHeatExchangerEquations_N_640 (sim)	Simulate performance 11.52 → 19.59
ThermofluidStream	ThermofluidStream.HeatExchangers.Tests.Recuperator (sim)	Compile → Verify
ThermofluidStream	ThermofluidStream.Idealized.Tests.Processes.PolytropicPerfectGas.Fixed1 (sim)	Compile → Verify
ThermofluidStream	ThermofluidStream.Idealized.Tests.Processes.PolytropicPerfectGas.Fixed2 (sim)	Compile → Verify
ThermofluidStream	ThermofluidStream.Media.Tests.TestXRGMedia (sim)	Compile → Simulate
ThermofluidStream_dev	ThermofluidStream.HeatExchangers.Tests.Recuperator (sim)	Compile → Verify
ThermofluidStream_dev	ThermofluidStream.Idealized.Tests.Processes.PolytropicPerfectGas.Fixed1 (sim)	Compile → Verify
ThermofluidStream_dev	ThermofluidStream.Idealized.Tests.Processes.PolytropicPerfectGas.Fixed2 (sim)	Compile → Verify
ThermofluidStream_dev	ThermofluidStream.Media.Tests.TestXRGMedia (sim)	Compile → Simulate