OpenModelica v1.27-cpp from 2026-07-26 20:22:21 to 2026-08-03 09:52:14

Summary

OMC Commits1
Libraries Changed2
Number of Improvements4
Number of Regressions2
Number of Performance Improvements3
Number of Performance Regressions0

OpenModelica Changes

CommitDateAuthorSummary
f0056680002026-07-28 16:52:49 +0200AndreasFix spatialDistribution for nonzero start value of x (#16138)

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
6697fc02026-07-06 18:25:17 +0200linuslangenkamp[GBODE] set Radau IIA 3-stage, remove embedded error estimate (#288)
d357aff2026-06-12 13:26:07 +0200AndreasFix OMSimulator submodule update when directory layout changes (#287)

Library Changes

LibraryChange
Buildings_latestFrom version 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/c4117ccec1f288ee6bc7f0ee0cb40a45d6940b0c.zip) to 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/2fc8e1e4c0c4995f1cee56bb378e24aafe799159.zip)
ThermofluidStream_devFrom version 1.3.0-main (46f52936b94de2c43a91dc0e82d1de3e1c05adee) to 1.3.0-main (c1424a852b1b50dc44521e06f4994f3cfc2d9089)

Models Affected

Buildings_latestBuildings.Airflow.Multizone.Examples.PressurizationData (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.FixedResistances.Examples.FlowJunction (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.HeatExchangers.Examples.WaterHeater_T (sim)Simulate → Verify
Buildings_latestBuildings.Fluid.HeatExchangers.Examples.WetCoilCounterFlowPIDControlAutoTuning (sim)Simulate → Verify
ModelicaTest_trunkModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 33.09 → 18.11
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_56_M_56 (sim)Verify → Templates
ScalableTestSuiteScalableTestSuite.Power.ConceptualPowerSystem.ScaledExperiments.PowerSystemStepLoad_N_64_M_16 (sim)Simulate performance 13.43 → 5.51
ScalableTestSuite_nooptScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaIndividual_N_80_M_80 (sim)BackEnd performance 0:02:56 → 0:01:26
ThermofluidStream_devThermofluidStream.Examples.SimpleAirCycle (sim)Verify → Simulate