OpenModelica v1.26-cpp from 2026-06-08 08:14:32 to 2026-06-15 15:43:17

Summary

OMC Commits1
Libraries Changed2
Number of Improvements1
Number of Regressions7
Number of Performance Improvements4
Number of Performance Regressions4

OpenModelica Changes

CommitDateAuthorSummary
c943ea06992026-06-12 19:49:26 +0200Adrian PopFix for #15808 parameter value width (#15828)

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
Dynawo_devFrom version 1.8.0-master (d03e92947ddff6eca6ed54546f24d264e70a07ff) to 1.8.0-master (16beedd50da804de8fcb73d2ce2319cb790f2a0d)
ThermofluidStream_devFrom version 1.3.0-main (e3d16756e40f7e716a7cb47718c28e857d17299d) to 1.3.0-main (b088265ef45fbeeda2bef25d12bacddb44018c17)

Models Affected

Buildings_11Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)Simulate → Compile
Dynawo_devDynawo.Examples.IEEE57.TestCases.IEEE57HvdcPsDisconnectLine (sim)Failed → SimCode
OpenIPSLOpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents3 (sim)
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents (sim)
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents3 (sim)
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Bus_Fault (sim)
OpenIPSL_devOpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Line_Opening (sim)
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_8_M_4 (sim)SimCode → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_28_M_28 (sim)Compile performance 0:01:34 → 54.16
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_320_M_5 (sim)Verify → Templates
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_640 (sim)Simulate performance 25.96 → 8.32
ScalableTestSuiteScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)Simulate performance 13.28 → 5.52
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_320_M_5 (sim)Verify → Templates
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)BackEnd performance 0:01:02 → 0:02:05
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_20_M_20 (sim)Compile performance 32.30 → 0:01:10
ScalableTestSuite_nooptScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_1280 (sim)Compile performance 17.16 → 32.97
ScalableTestSuite_nooptScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)Simulate performance 5.48 → 10.41
ThermofluidStream_devThermofluidStream.Examples.EspressoMachine (sim)Verify → Simulate
ThermofluidStream_devThermofluidStream.Examples.ReverseHeatPump (sim)Simulate performance 0:09:56 → 49.25
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Evaporator (sim)Verify → Compile
ThermofluidStream_devThermofluidStream.Topology.Tests.TestDynamicTopology (sim)Verify → Failed