OpenModelica v1.26-fmi-fmpy from 2026-06-07 11:53:43 to 2026-06-14 12:36:01

Summary

OMC Commits1
Libraries Changed4
Number of Improvements6
Number of Regressions5
Number of Performance Improvements0
Number of Performance Regressions5

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
Buildings_12From version 12.1.2-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/5e5b3017c79762ce3c412d59bb643fe55641fc40.zip) FMPy version 0.3.29 to 12.1.2-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/d3a0ed3420e7949a9ca71d8965e00b04c9fab918.zip) FMPy version 0.3.29
Buildings_latestFrom version 13.0.1-master (https://github.com/lbl-srg/modelica-buildings/archive/686c2dcea679e1f85361071afec5aa10f5b78f6b.zip) FMPy version 0.3.29 to 13.0.1-master (https://github.com/lbl-srg/modelica-buildings/archive/2c3c6c4a49b0aee70c96fbb48ac2cb9f6186eead.zip) FMPy version 0.3.29
Dynawo_devFrom version 1.8.0-master (d03e92947ddff6eca6ed54546f24d264e70a07ff) FMPy version 0.3.29 to 1.8.0-master (9c57e01b2bcb5fbd1aed0a70e3d417f869937d5f) FMPy version 0.3.29
ThermofluidStream_devFrom version 1.3.0-main (e3d16756e40f7e716a7cb47718c28e857d17299d) FMPy version 0.3.29 to 1.3.0-main (b088265ef45fbeeda2bef25d12bacddb44018c17) FMPy version 0.3.29

Models Affected

Buildings_11Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 1.25 → 0:07:02
Buildings_12Buildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.TwoFloor_TwoZone (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 1.21 → 0:07:02
Buildings_latestBuildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.TwoFloor_TwoZone (sim)Failed → Compile
Dynawo_devDynawo.Examples.IEEE57.TestCases.IEEE57HvdcPsDisconnectLine (sim)Failed → FrontEnd
ModelicaTest_4.1.0ModelicaTest.Fluid.TestComponents.Pipes.DynamicPipesAndFittings (sim)Compile performance 47.23 → 0:01:22
Modelica_4.0.0Modelica.Electrical.Spice3.Examples.Spice3BenchmarkFourBitBinaryAdder (sim)Failed → Verify
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_8_M_4 (sim)FrontEnd → Failed
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_28_M_28 (sim)BackEnd performance 13.77 → 23.45
ScalableTestSuiteScalableTestSuite.Elementary.Tables.ScaledExperiments.CombiTimeTable_N_8000 (sim)Verify → Failed
ScalableTestSuiteScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CounterCurrentHeatExchangerEquations_N_1280 (sim)Compile → Verify
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)Simulate performance 6.08 → 11.69
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_112_M_112 (sim)Failed → Verify
ThermofluidStream_devThermofluidStream.Examples.ReverseHeatPump (sim)Compile → Verify
ThermofluidStream_devThermofluidStream.Topology.Tests.TestDynamicTopology (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Topology.Tests.TestJunctionNM (sim)Verify → Compile