OpenModelica v1.26-fmi-fmpy from 2026-04-26 16:50:27 to 2026-05-03 13:03:49

Summary

OMC Commits8
Libraries Changed4
Number of Improvements9
Number of Regressions18
Number of Performance Improvements3
Number of Performance Regressions4

OpenModelica Changes

CommitDateAuthorSummary
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)
9d6af6ab622026-04-27 12:22:00 +0200Adrian Popfix for #15300 - filter on discrete variables (#15302) (#15429)
f562d764c32026-04-27 09:59:51 +0200Adrian PopFix compilation on clang 21.1.8 (#15426)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
1dd4db72026-04-19 14:25:16 +0200Adrian Popforce fetch of tags to handle the floating tag 'nightly' (#285)
e83c3f42026-04-14 08:15:53 +0200Adrian Popcannot run python -m fmpy via check_output_log (#284)

Library Changes

LibraryChange
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/543125ca4b4d77c3dc64820c45bdb2928efb502a.zip) FMPy version 0.3.29 to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/bf456b3a4a2e5ec26a38913aef7390afd62fa686.zip) FMPy version 0.3.29
IBPSA_latestFrom version 4.0.0-master (a473c121155ba185407023ed705ff7a83925f6e8) FMPy version 0.3.29 to 4.0.0-master (594227f9023291b06dcfb53f168463f6235f4629) FMPy version 0.3.29
ThermofluidStreamFrom version 1.2.0 (https://github.com/DLR-SR/ThermofluidStream/archive/8d2287a558d9d5e3a6235c981d5a60044dae5b61.zip) FMPy version 0.3.29 to 1.3.0 (https://github.com/DLR-SR/ThermofluidStream/archive/e43023fd5b731416a60a0f0db21791f71f0d2baf.zip) FMPy version 0.3.29
ThermofluidStream_devFrom version 1.2.0-main (97dc3776922ba27582d364a9bccce3d404c5ca30) FMPy version 0.3.29 to 1.3.0-main (e43023fd5b731416a60a0f0db21791f71f0d2baf) FMPy version 0.3.29

Models Affected

Buildings_latestBuildings.Airflow.Multizone.Examples.TrickleVent (sim)Verify → Compile
Buildings_latestBuildings.DHC.Plants.Combined.Validation.AllElectricCWStorage (sim)Compile → Simulate
Buildings_latestBuildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.TwoFloor_TwoZone (sim)Failed → Compile
Buildings_latestBuildings.Fluid.Sources.Examples.Outside_CpData (sim)Verify → Simulate
Buildings_latestBuildings.Fluid.Sources.Examples.Outside_CpLowRise (sim)Verify → Simulate
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (sim)Compile → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case610 (sim)Verify → Compile
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case650 (sim)Verify → Compile
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case670 (sim)Compile → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case680 (sim)Verify → Compile
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950 (sim)Simulate performance 19.33 → 38.12
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case980 (sim)Simulate performance 4.18 → 39.70
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case995 (sim)Simulate performance 43.76 → 10.66
GreenhousesGreenhouses.Examples.GlobalSystem_1 (sim)Compile → FrontEnd
GreenhousesGreenhouses.Examples.GlobalSystem_2 (sim)Compile → FrontEnd
GreenhousesGreenhouses.Examples.Greenhouse_1 (sim)Compile → FrontEnd
GreenhousesGreenhouses.Examples.Greenhouse_2 (sim)Compile → FrontEnd
IBPSA_latestIBPSA.Airflow.Multizone.Examples.TrickleVent (sim)Simulate → Compile
IDEASIDEAS.Buildings.Components.BaseClasses.RadiativeHeatTransfer.Examples.ZoneLwDistribution (sim)Simulate → FrontEnd
IDEAS_devIDEAS.Buildings.Components.BaseClasses.RadiativeHeatTransfer.Examples.ZoneLwDistribution (sim)Simulate → FrontEnd
ScalableTestGrids_nooptScalableTestGrids.Models.Type2.Type2_tapNoEv_N_4_M_4 (sim)
ScalableTestSuiteScalableTestSuite.Elementary.Tables.ScaledExperiments.CombiTimeTable_N_8000 (sim)Verify → Failed
ScalableTestSuiteScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_8 (sim)Failed → Verify
ScalableTestSuiteScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_6400 (sim)Compile → Verify
ScalableTestSuiteScalableTestSuite.Thermal.HeatExchanger.ScaledExperiments.CounterCurrentHeatExchangerEquations_N_1280 (sim)Verify → Compile
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemAC.ScaledExperiments.DistributionSystemLinearIndividual_N_28_M_28 (sim)BackEnd performance 10.28 → 17.91
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)Simulate performance 5.04 → 10.88
ScalableTestSuite_nooptScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_25600 (sim)Simulate performance 30.74 → 13.46
ThermofluidStreamThermofluidStream.Examples.ReverseHeatPump (sim)Verify → Compile
ThermofluidStreamThermofluidStream.Examples.SimpleAirCycle (sim)Verify → Compile
ThermofluidStreamThermofluidStream.Examples.VaporCycle (sim)Simulate performance 11.16 → 4.82
ThermofluidStream_devThermofluidStream.Examples.ReverseHeatPump (sim)Verify → Compile
ThermofluidStream_devThermofluidStream.Processes.Internal.CentrifugalPump.CalculateCoefficientsFromMeasurements (sim)Failed → Verify
ThermofluidStream_devThermofluidStream.Processes.Tests.CentrifugalPump (sim)Failed → Compile
ThermofluidStream_devThermofluidStream.Processes.Tests.CentrifugalPumpCharacteristics (sim)Failed → Compile