OpenModelica v1.26-fmi from 2026-06-27 21:04:42 to 2026-07-11 19:58:23

Summary

OMC Commits0
Libraries Changed12
Number of Improvements4
Number of Regressions22
Number of Performance Improvements3
Number of Performance Regressions2

OpenModelica Changes

CommitDateAuthorSummary

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
6697fc02026-07-06 18:25:17 +0200linuslangenkamp[GBODE] set Radau IIA 3-stage, remove embedded error estimate (#288)
d357aff2026-06-12 13:26:07 +0200AndreasFix OMSimulator submodule update when directory layout changes (#287)

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.post147-g1ffcd84-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.post147-g1ffcd84-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.post147-g1ffcd84-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.post147-g1ffcd84-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/0192839096eb88d9d260b9390bff8efa3bca02b5.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.post147-g1ffcd84-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 (5808dd2511a49b9a2e5ee799419fe5479d59b053) 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.post147-g1ffcd84-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.post147-g1ffcd84-linux-debug info: 1 warnings info: 0 errors
ModelicaTest_trunkFrom version trunk (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/dca7ebccce0d491dd8602af939ccba11c74a32ed.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 trunk (https://github.com/OpenModelica/OpenModelica-ModelicaStandardLibrary/archive/dca7ebccce0d491dd8602af939ccba11c74a32ed.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.post147-g1ffcd84-linux-debug info: 1 warnings info: 0 errors
OpenIPSL_devFrom version 3.2.0-dev (https://github.com/OpenIPSL/OpenIPSL/archive/8155c73f51ceeec935eb158247c7c043eb697ff5.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 3.2.0-dev (https://github.com/OpenIPSL/OpenIPSL/archive/8155c73f51ceeec935eb158247c7c043eb697ff5.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.post147-g1ffcd84-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.post147-g1ffcd84-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.post147-g1ffcd84-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 (6115f1350febbe082f25084b41740aa97660be82) 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.post147-g1ffcd84-linux-debug info: 1 warnings info: 0 errors

Models Affected

AixLibAixLib.Systems.ModularAHU.Examples.DemandControlledAHU (sim)BackEnd performance 16.63 → 8.88
BuildSysProBuildSysPro.Building.Examples.ValidationDMvsSM (sim)Simulate → Compile
Buildings_11Buildings.Examples.DualFanDualDuct.ClosedLoop (sim)Failed → Compile
Buildings_11Buildings.Examples.VAVReheat.ASHRAE2006 (sim)Compile → Failed
Buildings_11Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 1.44 → 0:06:41
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:07:02 → 1.42
Buildings_latestBuildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.TwoFloor_TwoZone (sim)Compile → Failed
Dynawo_devDynawo.Examples.GridCodeSimulations.SheetSimulations.SheetI10 (sim)Simulate → Verify
Dynawo_devDynawo.Examples.HVDC.HVDC (sim)Verify → Simulate
Dynawo_devDynawo.Examples.SMIB.SMIBStepPm (sim)Compile → Verify
LEPSE_mainLEPSE.Examples.KKT_1 (sim)Verify → Compile
ModelicaTest_trunkModelicaTest.Fluid.TestComponents.Pipes.DynamicPipesAndFittings (sim)Compile performance 46.74 → 0:01:21
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Line_Opening (sim)
ScalableTestSuiteScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_8 (sim)Verify → Failed
ThermofluidStreamThermofluidStream.Examples.HeatPump (sim)Simulate performance 0:01:06 → 27.55
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.Evaporator (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.Recuperator (sim)Verify → Simulate
ThermofluidStream_devThermofluidStream.Examples.HeatPump (sim)Compile → Failed
ThermofluidStream_devThermofluidStream.Examples.VaporCycle (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Condenser (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Evaporator (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.FlowRes (sim)Simulate → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Recuperator (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Media.Tests.TestXRGMedia (sim)Compile → Failed
ThermofluidStream_devThermofluidStream.Undirected.HeatExchangers.Tests.TestDiscretizedHEX (sim)Compile → Verify
ThermofluidStream_devThermofluidStream.Undirected.HeatExchangers.Tests.TestDiscretizedHEXvsDir (sim)Verify → Failed