OpenModelica v1.26-cpp from 2026-06-01 07:56:24 to 2026-06-08 08:14:32

Summary

OMC Commits2
Libraries Changed2
Number of Improvements2
Number of Regressions46
Number of Performance Improvements5
Number of Performance Regressions3

OpenModelica Changes

CommitDateAuthorSummary
9fe23aceff2026-06-05 00:30:58 +0200Adrian PopCMake: Set revision from file (#15573) (#15752)
0e400aa9672026-06-04 11:19:53 +0200Adrian PopEscape spaces so that GNU include can work correctly (#15191) (#15743)

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 2.1.1 (https://github.com/RWTH-EBC/AixLib/archive/b9d4d88d1fb38511d2af0958f11855c14064841a.zip) to 3.0.0 (https://github.com/RWTH-EBC/AixLib/archive/e716783b07f1bee5a4e45de1bcc1575576d7c974.zip)
Dynawo_devFrom version 1.8.0-master (c0d4f9a66523f42f8e7181a7298337555f94661b) to 1.8.0-master (d03e92947ddff6eca6ed54546f24d264e70a07ff)

Models Affected

AixLibAixLib.Controls.HVACAgentBasedControl.Examples.BuildingHeatingSystems.BuildingHeating (sim)Templates → Failed
AixLibAixLib.Controls.HVACAgentBasedControl.Examples.BuildingHeatingSystems.BuildingHeating_usePoke (sim)Templates → Failed
AixLibAixLib.Controls.HVACAgentBasedControl.Examples.BuildingHeatingSystems.BuildingWithPV (sim)Templates → Failed
AixLibAixLib.Fluid.Examples.FlowSystem.Basic (sim)Simulate performance 13.90 → 5.75
AixLibAixLib.Fluid.Examples.FlowSystem.Simplified2 (sim)Simulate performance 0:08:02 → 0:04:39
AixLibAixLib.Fluid.MassExchangers.MembraneBasedEnthalpyExchangers.Validation.DynamicValidation (sim)Simulate performance 42.49 → 0:02:18
AixLibAixLib.Fluid.Storage.Examples.StorageSimpleExample (sim)Simulate performance 0:03:56 → 0.21
AixLibAixLib.Systems.ModularAHU.Examples.DemandControlledAHU (sim)Templates → Failed
AixLibAixLib.ThermalZones.HighOrder.Components.Examples.Walls.OutsideWall (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Components.Examples.WindowsDoors.WindowSimple (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Components.Shadow.Examples.ShadowEffectTest (sim)Templates → Failed
AixLibAixLib.ThermalZones.HighOrder.Examples.ASHREA140.CompareDynamicAndStaticSolarFrac_Case270 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Examples.OFDHeatLoad (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case210 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case220 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case230 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case240 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case250 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case270 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case280 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case300 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case320 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case395 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case400 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case410 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case420 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case430 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case440 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case600 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case620 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case640 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case650 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case800 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case810 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case900 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case920 (sim)Simulate → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case940 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.ASHRAE140.Case950 (sim)Compile → Failed
AixLibAixLib.ThermalZones.HighOrder.Validation.EmpiricalValidation.Warehouse (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.ComparisonThermalZoneMoistAndDryAir (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.Multizone (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.MultizoneInterzonalsFixedHeater (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.MultizoneMoistAirCO2 (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.MultizonePartlyCooled (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.ThermalZone (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.ThermalZoneAirExchange (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.ThermalZoneMoistAir (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.ThermalZoneMoistAirSwimmingPool (sim)Templates → Failed
AixLibAixLib.ThermalZones.ReducedOrder.Examples.ThermalZoneMoistCO2AirExchange (sim)Templates → Failed
Dynawo_devDynawo.Examples.IEEE57.TestCases.IEEE57HvdcPsDisconnectLine (sim)SimCode → Failed
ModelicaTest_3.2.3ModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 52.36 → 18.55
ScalableTestGrids_nooptScalableTestGrids.Models.Type1.Type1_N_8_M_4 (sim)Failed → SimCode
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_320_M_5 (sim)Templates → Verify
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_640 (sim)Simulate performance 9.74 → 25.96
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_80_M_80 (sim)BackEnd performance 0:01:40 → 0:02:59
ScalableTestSuite_nooptScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_1600 (sim)Simulate performance 40.24 → 22.07