Geant4 11.3 - patch-01 Release Notes ------------------------------------ 21 March 2025 List of fixes included in this public patch since the public release 11.3.0: o Analysis -------- + Fix to qualify use of G4Accumulables namespace to avoid clashes and order dependence of inclusion of headers. + Removed false warnings about non-existing n-tuple and removed debug messages when filling inactivated n-tuple. o Event ----- + Fixed cut&paste error in G4StackManager::TransferStackedTracks(..), reported by Coverity. o Externals --------- + CLHEP: o Properly export static symbols in RandFlat for DLL build support on Windows. o Geometry -------- + magnetic_field: o Added missing guard in G4TMagFieldEquation header and minor cleanup. Fixes [GitHub PR #83](https://github.com/Geant4/geant4/pull/83). + management: o In G4GeometryManager, fix in ConfigureParallelOptimisation() to reset logical volumes iterator; in ReportWorkerIsDoneOptimising(), added checks to report fatal error if incorrect number of volumes was voxelised, and warns if number of workers reporting is not as expected. In ConfigureParallelOptimisation(), reports on the times it was called. Applied clang-tidy and some code cleanup; moved additional checks/warnings under verbosity level. o In G4VSolid::EstimateCubicVolume(..), initialise local variable to zero to silence invalid false positive warnings reported in compilation of CMSSW. o G4UAdapter: removed fake default constructor, clearing compilation warnings on gcc-14. + solids/CSG: o Hide all ENorm/ESide enums in anonymous namespaces to prevent ODR warnings. Identified in ATLAS Athena code built against v11.3.0. o Removed fake default constructor from G4U* wrappers, clearing compilation warnings on gcc-14. + solids/specific: o G4Polyhedra, G4UPolyhedra: fix to verify the validity of the delta phi to restore proper visualization. o Removed fake default constructor from G4U* wrappers, clearing compilation warnings on gcc-14. o Global ------ + Corrected logic error in G4PhysicsTable when reading data in binary mode on Windows platforms. + In G4ThreadLocalSingleton, removed unprotected left-over debug inclusion of G4BackTrace header. Addressing problem report #2649. + Updated date and version for 11.3.1. o Materials --------- + Made ios flags for Store/Retrieve of G4ExtDEDXTable consistent to avoid issues on Windows platforms. o Physics Lists ------------- + constructors/limiters: o G4GenericBiasingPhysics: fixed exception in adding call to AddBiasingProcessLimiter() when parallel world is not defined. Ignore calls to *AddPDGRange() functions if 'PDGlow' greater than 'PDGhigh'. o Processes - Cuts ---------------- + In G4ProductionCutsTable::UpdateCoupleTable(), make sure that the couple tables are updated if 'userEnergyCuts' vectors are set. o Processes - Electromagnetic --------------------------- + dna o Removed obsolete/commented references to G4AllocatorList. + lowenergy: o Fixed reported Coverity defects in Penenelope models, G4ShellData, G4FluoData and G4AugerTransition. + standard: o G4OrePowellAtRestModel: added missing decay plane rotation. o Processes - Hadronic -------------------- + de_excitation: o G4ExcitationHandler, G4GammaTransition, G4PhotonEvaporation: removed production of unphysical states. Addressing problem report #2584. Changes in hadronic shower shapes for QGSP_BIC and QGSP_INCLXX physics lists are observed, with wider lateral shower shapes and increase in energy response. + models/radioactive_decay: o Fix in G4RadioactiveDecay to enable biasing in radioactive decay. Addressing problem report #2592. + util o G4Fragment: added protection against precision loss in computation of a boost vector at rest. o G4HadronicDeveloperParameters: added limitation of warning printout on change of parameters. o processes/scoring ----------------- + Fixes to G4EnergySplitter to ensure that each call to SplitEnergyInVolumes() utilises the correct phantom parameterisation, according to [GitHub PR#80](https://github.com/Geant4/geant4/pull/80) Addressing problem report #2636. o Run --- + Correction in G4WorkerRunManager::InitializeGeometry() when invoking G4GeometryManager in undertaking parallel voxelisation. o Examples -------- + advanced/HGCal_testbeam o Restore the original beam energy after it is modified. o Ensure non-negative beam energy. + extended/biasing/GB01 + extended/biasing/GB02 o Propagate biasing on/off to detector construction to initialisation of biasing classes only if biasing requested. o Added vis.mac and enabled detector visualisation on startup. o Removed unused WITH_GEANT4_UIVIS cmake option. + extended/biasing/GB03 o Added option -b (biasing on/off). o Set default splitting probability to 0.2. o Instantiate G4GenericBiasingPhysics only if biasing is enabled. Propagate biasing on/off to detector construction to initialisation of biasing classes only if biasing requested. o Removed unused WITH_GEANT4_UIVIS cmake option. + extended/biasing/GB04 o Propagate biasing on/off to detector construction to initialisation of biasing classes only if biasing requested. o Added vis.mac and enabled detector visualisation on startup. o Removed unused WITH_GEANT4_UIVIS cmake option. + extended/biasing/GB05 o Propagate biasing on/off to detector construction to initialisation of biasing classes only if biasing requested. o Removed unused WITH_GEANT4_UIVIS cmake option. + extended/biasing/GB06 o Added check for null pointer to shared data; fixing detected crash when biasing is off. o Propagate biasing on/off to parallel world construction to initialization of biasing classes only if biasing requested. o Removed unused WITH_GEANT4_UIVIS cmake option. + extended/biasing/GB07 o Propagate biasing on/off to detector construction to initialisation of biasing classes only if biasing requested. o Removed unused WITH_GEANT4_UIVIS cmake option. ---------------------------------------------------------------------------- Technical Notes --------------- o This patch should be applied on top of release 11.3 series. o Technical notes distributed for release 11.3 are also applicable and valid for this patch. The code and rebuilt binary libraries for release 11.3.1 are available through the Geant4 "Download" Web page. Please refer to the Geant4 User Documentation for further information about using Geant4.