OpenModelica v1.26-cpp from 2026-04-27 17:05:10 to 2026-05-04 11:35:19

Summary

OMC Commits7
Libraries Changed4
Number of Improvements9
Number of Regressions4
Number of Performance Improvements1
Number of Performance Regressions14

OpenModelica Changes

CommitDateAuthorSummary
2b913cc6c42026-05-03 15:00:05 +0200Adrian Popinclude the version in the file name (#15479)
a859cb65922026-05-01 19:53:07 +0200Adrian Popfix copy-paste error (#15474)
9154da1efe2026-05-01 10:37:37 +0200Adrian Pophopefully git describe work fine now (#15472)
6b3ced5fdf2026-04-30 06:56:48 +0200Adrian Popfetch tags for describe to work properly (#15461)
5d97a3b8062026-04-30 01:04:32 +0200Adrian Popupdate the submodules checkout to recursive (#15459)
ffcb890ea62026-04-29 15:37:22 +0200Adrian Popremove the wip workflow (#15457)
b3b502fb792026-04-29 13:06:41 +0200Adrian Popadd the workflows from master (#15454)

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_11From version 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/e8d2b9b1d08ee9acad54c23d1d35029e31cdf8a3.zip) to 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/16657dbfcd789e924daab8027b423f5abeeb00e2.zip)
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/543125ca4b4d77c3dc64820c45bdb2928efb502a.zip) to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/2bc4c86e623c7929c87e874c36a5bb4f05b7433b.zip)
ThermofluidStreamFrom version 1.2.0 (https://github.com/DLR-SR/ThermofluidStream/archive/8d2287a558d9d5e3a6235c981d5a60044dae5b61.zip) to 1.3.0 (https://github.com/DLR-SR/ThermofluidStream/archive/e43023fd5b731416a60a0f0db21791f71f0d2baf.zip)
ThermofluidStream_devFrom version 1.2.0-main (97dc3776922ba27582d364a9bccce3d404c5ca30) to 1.3.0-main (e43023fd5b731416a60a0f0db21791f71f0d2baf)

Models Affected

Buildings_11Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)Compile → Simulate
Buildings_latestBuildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Measured_SmallScale (sim)Compile → Simulate
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.Guideline36Summer (sim)BackEnd performance 19.05 → 11.00
ModelicaTest_3.2.3ModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 34.40 → 0:01:03
ModelicaTest_4.1.0ModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 15.52 → 30.47
ModelicaTest_trunkModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 26.91 → 54.62
OpenIPSL_2.0.0OpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents2 (sim)BackEnd performance 42.63 → 0:01:12 Templates performance 52.56 → 0:01:34
OpenIPSL_2.0.0OpenIPSL.Examples.DAEMode.N44_Base_Case_Systems.Nordic44_Base_Case_StateEvents3 (sim)BackEnd performance 42.74 → 0:01:14
OpenIPSL_2.0.0OpenIPSL.Examples.DAEMode.N44_Original_Systems.Nordic44_Original_Case_Line_Opening (sim)Templates performance 44.48 → 0:01:16
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_56_M_56 (sim)Templates → Verify
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)BackEnd performance 0:01:17 → 0:02:42
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_20_M_20 (sim)Compile performance 38.37 → 0:01:11
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_160 (sim)Compile performance 13.38 → 25.48
ScalableTestSuiteScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_4000_M_10 (sim)Simulate performance 6.41 → 12.91
ScalableTestSuiteScalableTestSuite.Thermal.Advection.ScaledExperiments.SteamPipe_N_640 (sim)Failed → Simulate
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10 (sim)Compile performance 10.09 → 21.01
ScalableTestSuite_nooptScalableTestSuite.Elementary.WhenEvents.ScaledExperiments.ManyEvents_N_8000_M_10 (sim)SimCode performance 0:01:00 → 0:02:06
ThermofluidStreamThermofluidStream.Examples.ReverseHeatPump (sim)Simulate performance 48.79 → 0:09:59
ThermofluidStreamThermofluidStream.Examples.SimpleAirCycle (sim)Simulate → Verify
ThermofluidStreamThermofluidStream.Examples.SimpleCoolingCycle (sim)Verify → Simulate
ThermofluidStreamThermofluidStream.Examples.SimpleStream (sim)Simulate → Verify
ThermofluidStreamThermofluidStream.HeatExchangers.Tests.ElementTwoPhase (sim)Verify → Compile
ThermofluidStream_devThermofluidStream.Examples.ReverseHeatPump (sim)Simulate performance 48.63 → 0:10:10
ThermofluidStream_devThermofluidStream.Examples.SimpleCoolingCycle (sim)Verify → Simulate
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.ElementTwoPhase (sim)Verify → Compile
ThermofluidStream_devThermofluidStream.Processes.Internal.CentrifugalPump.CalculateCoefficientsFromMeasurements (sim)Failed → Verify
ThermofluidStream_devThermofluidStream.Processes.Tests.CentrifugalPump (sim)Failed → Simulate
ThermofluidStream_devThermofluidStream.Processes.Tests.CentrifugalPumpCharacteristics (sim)Failed → Verify