OpenModelica cpp from 2026-05-04 17:37:41 to 2026-05-05 00:07:27

Summary

OMC Commits4
Libraries Changed2
Number of Improvements2
Number of Regressions4
Number of Performance Improvements8
Number of Performance Regressions1

OpenModelica Changes

CommitDateAuthorSummary
424c4061f62026-05-04 23:02:57 +0200Martin SjölundRemove the database bindings (#15491)
8f3dddc8a12026-05-04 22:55:00 +0200Martin SjölundRemove the MessagePack library (#15490)
36cf65a7292026-05-04 20:54:40 +0200JKRT_CLAUDE_ACCOUNTMerge consecutive MetaModelica metarecord field updates (#11909) (#15396)
b9030b79432026-05-04 18:42:36 +0200Martin SjölundPort StateMachines to NF (#15424)

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_11From version 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/16657dbfcd789e924daab8027b423f5abeeb00e2.zip) to 11.1.1-maint.11.x (https://github.com/lbl-srg/modelica-buildings/archive/d14e4094b89d0bd248275efdd8b4bf0548ea6bf0.zip)
Buildings_12From version 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/04b122f0c444f3a505163c76e7294db4964c62a8.zip) to 12.1.1-maint.12.x (https://github.com/lbl-srg/modelica-buildings/archive/451783ab30a673563aecd11cc30f5a22f38e8cdd.zip)

Models Affected

BuildSysProBuildSysPro.Utilities.Analysis.Examples.RestartDiscomfort (sim)Compile performance 25.11 → 43.73
Buildings_11Buildings.DHC.Plants.Combined.Examples.AllElectricCWStorage (sim)Compile → Templates
Buildings_12Buildings.DHC.Plants.Combined.Examples.AllElectricCWStorage (sim)Compile → Templates
IDEAS_devIDEAS.Fluid.HeatPumps.ModularReversible.Examples.CarnotWithLosses_OneRoomRadiator (sim)Compile performance 34.26 → 19.82
ModelicaTest_trunkModelicaTest.Blocks.FilterTests.AllOptions (sim)Simulate performance 37.32 → 16.94
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_320_M_5 (sim)Templates → Verify
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelicaActiveLoads_N_56_M_56 (sim)Verify → Templates
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_14_M_14 (sim)Compile performance 39.39 → 18.21
ScalableTestSuiteScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_80_M_80 (sim)SimCode performance 21.26 → 10.93
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_1280 (sim)Simulate performance 0:04:50 → 0:02:06
ScalableTestSuiteScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_160 (sim)Compile performance 21.25 → 11.40
ScalableTestSuiteScalableTestSuite.Elementary.SimpleODE.ScaledExperiments.CascadedFirstOrder_N_25600 (sim)BackEnd performance 44.03 → 22.79
ScalableTestSuite_nooptScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineEquations_N_1280 (sim)Compile → Simulate
ScalableTestSuite_nooptScalableTestSuite.Thermal.Advection.ScaledExperiments.SimpleAdvection_N_3200 (sim)Simulate performance 43.85 → 24.02
ScalableTestSuite_nooptScalableTestSuite.Thermal.Advection.ScaledExperiments.SteamPipe_N_640 (sim)Simulate → Failed