OpenModelica v1.27-fmi from 2026-06-28 00:20:02 to 2026-07-04 16:38:38

Summary

OMC Commits4
Libraries Changed13
Number of Improvements5
Number of Regressions16
Number of Performance Improvements10
Number of Performance Regressions4

OpenModelica Changes

CommitDateAuthorSummary
8b0c2547292026-07-02 22:59:43 +0300Adrian Pop[OMEdit] Fix #15965: bound DynamicSelect evaluation to stop infinite recursion (#15968) (#15979)
c3975a1de72026-06-30 11:40:26 +0200Adeel AsgharLoad a previously compiled simulation executable (#15954) (#15962)
3d4d539df02026-06-30 01:26:17 +0300Adrian PopUpdate type when simplifying if-expressions (#15951) (#15960)
0d56de5bbd2026-06-29 18:19:10 +0300Adrian Pop[FrontEnd] Record extends chain so inherited shapes are visualized (#15953)

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
AixLibFrom version 3.0.1 (https://github.com/RWTH-EBC/AixLib/archive/e5df9a8da27833ee391c2f7a0adbcd80278f47d2.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 3.0.1 (https://github.com/RWTH-EBC/AixLib/archive/e5df9a8da27833ee391c2f7a0adbcd80278f47d2.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
BuildSysProFrom version 3.7.0 (https://github.com/EDF-TREE/BuildSysPro/archive/7e8198a827d69e7127828bb09b07262ebcb621c9.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 3.7.0 (https://github.com/EDF-TREE/BuildSysPro/archive/7e8198a827d69e7127828bb09b07262ebcb621c9.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
Buildings_11From version 11.1.2-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/df423074e48835df648a03866d9e703d4569114a.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 11.1.2-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/df423074e48835df648a03866d9e703d4569114a.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
Buildings_12From version 12.1.2-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/f04caa0b1ad7c9fb60746762ad73a96b9e67904a.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 12.1.2-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/f04caa0b1ad7c9fb60746762ad73a96b9e67904a.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
Buildings_latestFrom version 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/a131864e4c4df22ebcd52bb8da439de0087ac365.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/a131864e4c4df22ebcd52bb8da439de0087ac365.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
Dynawo_devFrom version 1.8.0-master (a9912ba1690401582240c0d18548998ed62156b5) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 1.8.0-master (b0982ed5f1296c605979d40465fad04a60600a32) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
IBPSA_latestFrom version 4.0.0-master (6eb7429932e49faba297aee9e36c2c057fb21fb6) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 4.0.0-master (6eb7429932e49faba297aee9e36c2c057fb21fb6) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
LEPSE_mainFrom version main (979cd7f6df0e8e5b1d6c16d75694bc219be78bdb) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to main (979cd7f6df0e8e5b1d6c16d75694bc219be78bdb) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
PhysiolibraryFrom version 3.0.0 (https://github.com/MarekMatejak/Physiolibrary/archive/0ef8b5848b8bd08912a1713d0641b6bb03c3e3b2.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 3.0.0 (https://github.com/MarekMatejak/Physiolibrary/archive/0ef8b5848b8bd08912a1713d0641b6bb03c3e3b2.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
SOFCPoliMiFrom version master (e059ad070d30e9d175fd853aedd372ba9b5efba1) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to master (e059ad070d30e9d175fd853aedd372ba9b5efba1) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-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 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-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 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
ThermofluidStreamFrom version 1.3.0 (https://github.com/DLR-SR/ThermofluidStream/archive/e43023fd5b731416a60a0f0db21791f71f0d2baf.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 1.3.0 (https://github.com/DLR-SR/ThermofluidStream/archive/e43023fd5b731416a60a0f0db21791f71f0d2baf.zip) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors
ThermofluidStream_devFrom version 1.3.0-main (e54ad6bed5f20927a85332b45d766f9c9ed001fb) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post141-gcc6814d-linux-debug info: 1 warnings info: 0 errors to 1.3.0-main (169e6af3c9b53834cdb942e3dc9dc3a5b8ff60fd) warning: Failed to load settings: [json.exception.parse_error.101] parse error at line 3, column 2: syntax error while parsing value - invalid literal; last read: '"temp_AixLib_AixLib_Fluid_HeatPumps_Validation_ReciprocatingWaterToWater_Static_fmu"}_'; expected end of input OMSimulator v3.0.0.post142-gf531e02-linux-debug info: 1 warnings info: 0 errors

Models Affected

AixLibAixLib.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)SimCode performance 8.14 → 27.25
AixLibAixLib.ThermalZones.HighOrder.Examples.OFDHeatLoad (sim)SimCode performance 0:01:34 → 28.55
AixLibAixLib.ThermalZones.HighOrder.Examples.OFD_1Jan (sim)SimCode performance 0:01:08 → 22.29
BuildSysProBuildSysPro.Building.Examples.ValidationDMvsSM (sim)Simulate → Compile
Buildings_11Buildings.DHC.ETS.Combined.Examples.ChillerBorefield (sim)SimCode performance 28.14 → 11.70
Buildings_11Buildings.DHC.ETS.Combined.Validation.ChillerBorefield (sim)SimCode performance 31.94 → 10.24
Buildings_11Buildings.DHC.Loads.BaseClasses.Examples.CouplingRCZ6 (sim)Verify → Failed
Buildings_12Buildings.DHC.ETS.Combined.Subsystems.Validation.Borefield (sim)SimCode performance 16.28 → 34.88
Buildings_12Buildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:07:02 → 1.42
Buildings_latestBuildings.DHC.Loads.BaseClasses.Examples.CouplingRCZ6 (sim)Failed → Verify
Buildings_latestBuildings.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.Examples.BoreholeDynamics (sim)Verify → Failed
Dynawo_devDynawo.Examples.ENTSOE.TestCase3 (sim)Simulate → Compile
Dynawo_devDynawo.Examples.GridCodeSimulations.SheetSimulations.SheetI10 (sim)Simulate → Verify
Dynawo_devDynawo.Examples.SMIB.SMIBStepPm (sim)Compile → Verify
IBPSA_latestIBPSA.Fluid.Geothermal.Borefields.Validation.ConstantHeatInjection_100Boreholes (sim)SimCode performance 7.65 → 22.12
LEPSE_mainLEPSE.Examples.KKT_1 (sim)Compile → Verify
PhysiolibraryPhysiolibrary.Organs.Lungs.Examples.MeanLungsTest (sim)Compile → Failed
SOFCPoliMiSOFCPoliMi.Tests.BenchmarkCammarataIndex1 (sim)SimCode performance 16.57 → 30.78
SOFCPoliMiSOFCPoliMi.Tests.BenchmarkNonLinConcLosses (sim)SimCode performance 32.06 → 17.69
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_28_M_28 (sim)Compile → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_28_M_28 (sim)Failed → Verify
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_80_M_80 (sim)Simulate performance 24.03 → 13.28
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)Simulate performance 10.89 → 5.42
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.CounterFlowNTU (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.CounterFlowNTU_parallel (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.CounterFlowNTU_serial (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.CounterFlowNTU_zeroMassFlow (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.CrossFlowNTU (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.CrossFlowNTU_zeroMassFlow (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.ElementTwoPhase (sim)Simulate performance 52.67 → 28.93
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.Evaporator (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.Recuperator (sim)Verify → Simulate
ThermofluidStream_devThermofluidStream.Examples.VaporCycle (sim)Simulate performance 0:01:01 → 34.53
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Evaporator (sim)Verify → Simulate