OpenModelica v1.27-fmi from 2026-08-02 03:31:07 to 2026-08-08 22:01:17

Summary

OMC Commits1
Libraries Changed4
Number of Improvements2
Number of Regressions6
Number of Performance Improvements4
Number of Performance Regressions7

OpenModelica Changes

CommitDateAuthorSummary
a0783c033a2026-08-04 16:34:44 +0200Adeel AsgharExtra corner items not needed when creating a connector (#16184) (#16185)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
f0529402026-08-07 08:03:04 +0200Martin SjölundApply __OpenModelica_simulationFlags to wasm-jit
65f890e2026-08-07 07:57:06 +0200Martin SjölundApply -alarm to wasm-jit simulations too

Library Changes

LibraryChange
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.post160-g564cb10-linux info: 1 warnings info: 0 errors to 11.1.2-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/266c975c250742658e867a8187ae52786cf1faee.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.post160-g564cb10-linux 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.post160-g564cb10-linux info: 1 warnings info: 0 errors to 12.1.2-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/4e96182ec2ce24ea97d8d5b345603ad26760fe60.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.post160-g564cb10-linux info: 1 warnings info: 0 errors
Buildings_latestFrom version 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/1bf3839e9de0510b32de2890dffb41264f3f6a85.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.post160-g564cb10-linux info: 1 warnings info: 0 errors to 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/280e075c0b1ca8d7004c3823c5a8835cb7f3e459.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.post160-g564cb10-linux info: 1 warnings info: 0 errors
ThermofluidStreamConfiguration hash (OMC settings or the testing script changed)

Models Affected

AixLibAixLib.ThermalZones.HighOrder.Examples.OFD_1Jan (sim)SimCode performance 27.66 → 0:01:55
Buildings_11Buildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)Simulate → Failed
Buildings_12Buildings.Air.Systems.SingleZone.VAV.Examples.Guideline36 (sim)SimCode performance 6.97 → 15.37
Buildings_12Buildings.DHC.ETS.Combined.Validation.ChillerBorefield (sim)SimCode performance 19.42 → 33.57
Buildings_12Buildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:07:02 → 1.37
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950 (sim)Simulate → Verify
Buildings_latestBuildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.OneFloor_OneZone (sim)SimCode performance 5.43 → 12.96
Buildings_latestBuildings.Fluid.HeatPumps.ModularReversible.Examples.TableData2DLoadDepSHC1And2 (sim)Verify → Failed
SOFCPoliMiSOFCPoliMi.Tests.BenchmarkCammarataIndex1 (sim)Compile → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_20_M_20 (sim)Failed → Compile
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinear_N_20_M_20 (sim)Compile → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_28_M_28 (sim)Compile → Failed
ScalableTestSuiteScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillator_N_800 (sim)Simulate performance 12.00 → 6.38
ScalableTestSuiteScalableTestSuite.Thermal.Advection.ScaledExperiments.SteamPipe_N_320 (sim)Compile performance 0:01:19 → 0:03:00
ScalableTestSuiteScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_1280 (sim)Compile performance 0:03:31 → 0:02:00
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)BackEnd performance 0:01:25 → 49.99
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_25600 (sim)Simulate performance 12.43 → 31.16
ThermofluidStreamThermofluidStream.Topology.Tests.TestNonPhysical (sim)Compile performance 19.64 → 35.51