OpenModelica v1.26-fmi from 2026-03-21 04:11:56 to 2026-03-30 06:13:00

Summary

OMC Commits0
Libraries Changed14
Number of Improvements28
Number of Regressions25
Number of Performance Improvements6
Number of Performance Regressions11

OpenModelica Changes

CommitDateAuthorSummary

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
dbfd1362026-03-27 15:34:11 +0100linuslangenkamp[GBODE] set ESDIRK4 as default integrator (#281)
2a49f692026-03-26 20:37:38 +0100AndreaBartoliniAdd ThermoPower branch v4.0.0-dev to the CI (#280)

Library Changes

LibraryChange
AixLibFrom version 2.1.1 (https://github.com/RWTH-EBC/AixLib/archive/b9d4d88d1fb38511d2af0958f11855c14064841a.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 2.1.1 (https://github.com/RWTH-EBC/AixLib/archive/b9d4d88d1fb38511d2af0958f11855c14064841a.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
BuildingSystemsFrom version 2.0.0-master (37f23a121434b999f66f0bf7ee16bb67ad8b2b83) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 2.0.0-master (37f23a121434b999f66f0bf7ee16bb67ad8b2b83) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Buildings_11From version 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/12f5f1987db61d7bf56fed5e07af2dd807f74cfa.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/8ffaefad4792181db2d71f08f9077bcc535dee17.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Buildings_12From version 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/72423dd099c34c383be7b88ae280b1f5c1589d60.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/8fbca51d4f79a1a88f2a6788a1c8ef7464db747c.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/88e7ea4b03cb8226c507cf895296dbbd07ced552.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/dc18485a811428470bad3288af1371c771173d82.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Dynawo_devFrom version 1.8.0-master (f46f6aa4ac1da865404196ce63b5b339102d8c4d) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 1.8.0-master (ddda3d9759eac51186274272cf91ab72356ac534) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
GreenhousesFrom version 1.0.0-master (845525ed51e3048447839e8896e25f3690c02eb9) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 1.0.0-master (845525ed51e3048447839e8896e25f3690c02eb9) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Modelica_3.2.3From version 3.2.3+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/efd981a1176f124938d6d6759f7c09e0fbf55ddf.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 3.2.3+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/efd981a1176f124938d6d6759f7c09e0fbf55ddf.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Modelica_4.0.0From version 4.0.0+maint.om (96032134c36668898e1693e69bd9f81aa38de3dd) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 4.0.0+maint.om (96032134c36668898e1693e69bd9f81aa38de3dd) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
Modelica_4.1.0From version 4.1.0+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/7a4bf7de77a3986e8eb1e88cbb515d646f78f834.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 4.1.0+maint.om (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/7a4bf7de77a3986e8eb1e88cbb515d646f78f834.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
ScalableTestGrids_nooptFrom version 1.2.0 (https://github.com/PowerGrids/ScalableTestGrids/archive/f18d08e87f948a85992343913e1adfd7d24cad95.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 1.2.0 (https://github.com/PowerGrids/ScalableTestGrids/archive/f18d08e87f948a85992343913e1adfd7d24cad95.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
ScalableTestSuiteFrom version 2.2.0-master (ce9eedecd9f6c487d11cfc2ed9724e75c0229323) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 2.2.0-master (ce9eedecd9f6c487d11cfc2ed9724e75c0229323) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
ThermofluidStreamFrom version 1.2.0 (https://github.com/DLR-SR/ThermofluidStream/archive/8d2287a558d9d5e3a6235c981d5a60044dae5b61.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 1.2.0 (https://github.com/DLR-SR/ThermofluidStream/archive/8d2287a558d9d5e3a6235c981d5a60044dae5b61.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors
ThermofluidStream_devFrom version 1.2.0-main (049904d82787acc75ad83ada86ab3b961816fe87) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post127-g0b655a2-linux-debug info: 1 warnings info: 0 errors to 1.2.0-main (049904d82787acc75ad83ada86ab3b961816fe87) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 4, column 1: syntax error while parsing value - unexpected '}'; expected end of input OMSimulator v3.0.0.post135-g49be467-linux-debug info: 1 warnings info: 0 errors

Models Affected

AixLibAixLib.ThermalZones.ReducedOrder.Examples.Multizone (sim)Compile performance 0:06:16 → 0:03:04
AixLibAixLib.ThermalZones.ReducedOrder.Windows.Validation.VDI2078.TestCase3_VentilationHeat (sim)Compile performance 0:02:53 → 0:06:05
BuildingSystemsBuildingSystems.Applications.AirConditioningSystems.PhotovoltaicCoolingSystem (sim)Compile performance 0:01:20 → 0:02:33
BuildingSystemsBuildingSystems.Applications.HeatingSystems.HeatPumpHeatingSystem (sim)Compile performance 0:01:09 → 0:02:10
BuildingSystemsBuildingSystems.Applications.HeatingSystems.SolarHeatingSystem (sim)Compile performance 0:01:52 → 0:03:28
BuildingSystemsBuildingSystems.Applications.HeatingSystems.WaterHeatingSystem (sim)Compile performance 0:01:06 → 0:02:00
BuildingSystemsBuildingSystems.Applications.PhotovoltaicSystems.PhotovoltaicSystem (sim)Compile performance 0:01:57 → 0:05:02
Buildings_11Buildings.DHC.ETS.Combined.Validation.ChillerWSE (sim)Failed → Verify
Buildings_11Buildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.OneFloor_OneZone (sim)Compile → Failed
Buildings_11Buildings.Fluid.Geothermal.Aquifer.Examples.CoolingOffice (sim)Verify → Failed
Buildings_11Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:07:02 → 0.73
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (sim)Compile → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Verify → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case610 (sim)Simulate → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case640 (sim)Compile → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case670 (sim)Failed → Compile
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case685 (sim)Failed → Compile
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900 (sim)Compile → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)Failed → Simulate
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Verify → Failed
Buildings_11Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Compile → Failed
Buildings_12Buildings.DHC.ETS.Combined.Examples.ChillerOnly (sim)Verify → Failed
Buildings_12Buildings.Fluid.Geothermal.Aquifer.Examples.CoolingOffice (sim)Failed → Verify
Buildings_12Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTUCounterFlow (sim)Verify → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case670 (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case695 (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case920 (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.Initialization.MixedAir (sim)Compile performance 0:02:00 → 0:04:04
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Winter (sim)Compile → Failed
Buildings_latestBuildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.Validation.SupplyAirTemperature (sim)Simulate → Verify
Buildings_latestBuildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Validation.Controller (sim)Simulate → Verify
Buildings_latestBuildings.Controls.OBC.Utilities.Validation.PIDWithEnable (sim)Simulate → Verify
Buildings_latestBuildings.DHC.ETS.Combined.Subsystems.Validation.HeatExchanger (sim)Simulate → Verify
Buildings_latestBuildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.OneFloor_OneZone (sim)Failed → Compile
Buildings_latestBuildings.Fluid.AirFilters.BaseClasses.Validation.FiltrationEfficiency (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.AirFilters.BaseClasses.Validation.FlowCoefficientCorrection (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.AirFilters.BaseClasses.Validation.MassAccumulation (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.AirFilters.BaseClasses.Validation.MassTransfer (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.AirFilters.BaseClasses.Validation.PressureDropWithVaryingFlowCoefficient (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.AirFilters.Examples.SpaceCooling (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.FixedResistances.Examples.PlugFlowPipe (sim)Simulate → Verify
Buildings_latestBuildings.Templates.Plants.Controls.StagingRotation.Validation.EquipmentAvailability (sim)Simulate → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case610 (sim)Failed → Simulate
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case650FF (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case660 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case695 (sim)Failed → Simulate
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case910 (sim)Simulate → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)Simulate → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Compile performance 0:03:49 → 0:02:04
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Compile performance 0:01:46 → 0:04:14
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)Failed → Verify
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Spring (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Compile → Failed
Dynawo_devDynawo.Examples.SMIB.Standard.GovCt2St4b (sim)Compile → Verify
GreenhousesGreenhouses.Examples.GlobalSystem_1 (sim)Compile → Failed
Modelica_3.2.3Modelica.Electrical.PowerConverters.Examples.ACDC.RectifierBridge2mPulse.ThyristorBridge2mPulse_DC_Drive (sim)Compile → Simulate
Modelica_4.0.0Modelica.Electrical.PowerConverters.Examples.ACDC.RectifierBridge2mPulse.ThyristorBridge2mPulse_DC_Drive (sim)Compile → Simulate
Modelica_4.1.0Modelica.Blocks.Examples.Rectifier12pulseFFT (sim)Compile performance 0:04:14 → 0:02:11
Modelica_4.1.0Modelica.Blocks.Examples.Rectifier6pulseFFT (sim)Compile performance 0:03:54 → 0:01:45
Modelica_4.1.0Modelica.Electrical.PowerConverters.Examples.ACDC.RectifierBridge2mPulse.ThyristorBridge2mPulse_DC_Drive (sim)Compile → Simulate
ScalableTestGrids_nooptScalableTestGrids.Models.Type0.Type0_N_2_M_2 (sim)Compile performance 0:04:58 → 0:02:31
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_2_M_4 (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapEv___N_4_M_4 (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_3_M_4 (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_4_M_4 (sim)
ScalableTestSuiteScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillator_N_1600 (sim)Verify → Failed
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.FlowRes (sim)Compile performance 0:02:11 → 0:04:39
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.Recuperator (sim)Simulate performance 14.09 → 27.23
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.FlowRes (sim)Compile performance 0:03:20 → 0:06:16