OpenModelica v1.24-fmi-fmpy from 2026-01-03 21:02:23 to 2026-01-11 12:18:37

Summary

OMC Commits0
Libraries Changed3
Number of Improvements16
Number of Regressions14
Number of Performance Improvements2
Number of Performance Regressions4

OpenModelica Changes

CommitDateAuthorSummary

OpenModelicaLibraryTesting Changes

CommitDateAuthorSummary
f2691882025-12-11 11:52:34 +0100Adrian Popadd extra simflags gbode (#262)
a8b7fb32025-12-04 12:35:20 +0100Adrian Popupdate HelmholtzMedia (#261)

Library Changes

LibraryChange
Buildings_11From version 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/a4842f655b4be6fc5305c00df071841c7cee9980.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/1e5a28b58b94bccb7093d37a9bebd9c0bfc51881.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit
Buildings_12From version 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/a2615dd5f3933896411db908b6a782f0133e2845.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/19ef4ed52eab46e4b8aecbcaa28655e58d0c1244.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit
Buildings_latestFrom version 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/d90b89b720244c5caef1764209f866bbe09bc57e.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit to 13.0.0-master (https://github.com/lbl-srg/modelica-buildings/archive/944f6639087d1f654fddde90873a352e042f09c4.zip) usage: __main__.py [-h] [--version] [--validate] [--start-time START_TIME] FMPy version: 0.3.21 Python version: 3.10.12 (main, Nov 4 2025, 08:48:33) [GCC 11.4.0] --version show program's version number and exit

Models Affected

Buildings_11Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimarySecondaryEconomizer (sim)Compile → Failed
Buildings_11Buildings.DHC.ETS.Combined.Validation.ChillerOnly (sim)Failed → Verify
Buildings_11Buildings.DHC.Loads.BaseClasses.Validation.FlowDistributionPumpControl (sim)
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Failed → Verify
Buildings_11Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindow (sim)Failed → Verify
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Compile performance 0:02:15 → 0:04:42
Buildings_11Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Failed → Verify
Buildings_11Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Compile → Failed
Buildings_12Buildings.Applications.DataCenters.ChillerCooled.Examples.NonIntegratedPrimarySecondaryEconomizer (sim)Verify → Compile
Buildings_12Buildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ1 (sim)Simulate performance 5.21 → 11.02
Buildings_12Buildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 5.18 → 0:07:02
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case640 (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case680FF (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case685 (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940 (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950 (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowExteriorShade (sim)Failed → Verify
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindow (sim)Compile performance 0:04:30 → 0:01:45
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowExteriorShade (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowInteriorShade (sim)Failed → Compile
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Spring (sim)Compile → Failed
Buildings_12Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Failed → Compile
Buildings_latestBuildings.Applications.DataCenters.ChillerCooled.Examples.NonIntegratedPrimarySecondaryEconomizer (sim)Compile → Verify
Buildings_latestBuildings.DHC.Networks.Examples.Distribution2PipeExample (sim)
Buildings_latestBuildings.Fluid.DXSystems.Cooling.AirSource.Examples.VariableSpeed (sim)Compile → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Examples.FFD.Tutorial.MixedConvection (sim)Simulate performance 0:14:02 → 4.40
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case650 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case660 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF (sim)Verify → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case985 (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindow (sim)Failed → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.OnlyExteriorWallWithWindowInteriorShade (sim)Failed → Verify
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindow (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.Detailed.Validation.TestConditionalConstructions.SampledModel.OnlyExteriorWallWithWindowInteriorShade (sim)Compile → Failed
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Summer (sim)Failed → Compile
Buildings_latestBuildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice.ASHRAE2006Winter (sim)Compile performance 0:02:39 → 0:04:40