OpenModelica v1.27-fmi-fmpy from 2026-07-05 00:50:22 to 2026-07-12 11:37:57

Summary

OMC Commits0
Libraries Changed2
Number of Improvements1
Number of Regressions14
Number of Performance Improvements0
Number of Performance Regressions1

OpenModelica Changes

CommitDateAuthorSummary

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/a131864e4c4df22ebcd52bb8da439de0087ac365.zip) FMPy version 0.3.29 to 14.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/0192839096eb88d9d260b9390bff8efa3bca02b5.zip) FMPy version 0.3.29
ThermofluidStream_devFrom version 1.3.0-main (169e6af3c9b53834cdb942e3dc9dc3a5b8ff60fd) FMPy version 0.3.29 to 1.3.0-main (6115f1350febbe082f25084b41740aa97660be82) FMPy version 0.3.29

Models Affected

Buildings_latestBuildings.Air.Systems.SingleZone.VAV.Examples.ChillerDXHeatingEconomizer (sim)SimCode performance 6.04 → 12.19
Buildings_latestBuildings.DHC.Loads.BaseClasses.Examples.CouplingRCZ6 (sim)Verify → Failed
Buildings_latestBuildings.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.Examples.BoreholeDynamics (sim)Verify → Failed
Buildings_latestBuildings.Fluid.Geothermal.Borefields.Examples.Borefields (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Examples.HeatPump (sim)Compile → Failed
ThermofluidStream_devThermofluidStream.Examples.VaporCycle (sim)Compile → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Condenser (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Evaporator (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.FlowRes (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.HeatExchangers.Tests.Recuperator (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Media.Tests.TestXRGMedia (sim)Compile → Failed
ThermofluidStream_devThermofluidStream.Media.additionalMedia.Incompressible.Tests.TestLiqLoopDowcal100 (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Media.additionalMedia.Incompressible.Tests.TestLiqLoopJP8 (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Media.additionalMedia.SingleGasAndIncompressible.Tests.TestLiqLoopJP8DryAir (sim)Verify → Failed
ThermofluidStream_devThermofluidStream.Undirected.HeatExchangers.Tests.TestDiscretizedHEX (sim)Simulate → Verify
ThermofluidStream_devThermofluidStream.Undirected.HeatExchangers.Tests.TestDiscretizedHEXvsDir (sim)Simulate → Failed