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                   Geant4 10.1-beta-01 Release Notes
                   ---------------------------------
 
                                                             27 June 2014
 
                  Migration Notes & Main New Features
                  -----------------------------------
 
   o Multi-threading:
     + Adoption of c++11 standard in conjunction with new CLHEP version 2.2.
   o Reduction of memory leaked at exit with application of new pattern for
     singletons dynamically allocated.
   o A bug fix in the fragmentation of hadronic strings used by the FTF model
     (G4LundStringFragmentation) affects the simulation of hadronic showers:
     more neutral and less charged pions are now produced, increasing the
     electromagnetic component, which makes the showers more compact and
     with higher energy response.
   o New data sets G4EMLOW-6.39, PhotonEvaporation-3.1 and
     G4RadioactiveDecay-4.1 are required.
 
 
  ----------------------------------------------------------------------------
 
                              Technical Notes
                              --------------- 
 
   o Official platforms:
     + Linux, gcc-4.4.7.
       Tested on 64 bits architectures (Intel or AMD) with the Scientific
       Linux CERN 6 (SLC6) distribution (based on RedHat Linux Enterprise 6).
       Versions of Geant4 have also been compiled successfully on other
       Linux distributions, Debian, Suse or other RedHat systems.
     + MacOSX 10.9, gcc-4.2.1, clang-3.4
        * For multi-threading on MacOSX, -clang- compiler has to be used.
     + Windows/7 with Visual C++ 11.0 (Visual Studio 2012)
        * Multi-threading mode currently -not- supported on Windows.
 
   o More verified configurations:
     + Linux, gcc-4.7.2, gcc-4.8.1, gcc-4.9.0
     + Linux, Intel-icc 14.0.
     + Windows, Visual C++ 12.0.
 
   o Geant4 10.1-beta-01 has been tested using CLHEP-2.2.0.1.
 
  Please refer to the Geant4 User Documentation:
    http://cern.ch/geant4/support/userdocuments.shtml
  for further information about using Geant4.
 
  ----------------------------------------------------------------------------
 
 List of features and fixes included in this Beta release since 10.0.p02:
 
   o Configuration:
     -------------
     + CMake:
       o Added -DG4USE_STD11 compilation flag when c++11 is selected at
         configuration time for capable compilers.
       o Updated version of data sets: G4EMLOW-6.39,
         PhotonEvaporation-3.1 and G4RadioactiveDecay-4.1.
         Updated tags for 10.1-beta.
 
   o Analysis:
     --------
     + Added new CreateNtupleTColumn() functions for ntuple columns of vectors
       in G4AnalysisManager.
     + Added interface classes G4VAnalysisReader and G4VRNtupleManager for
       reading, and their Root specializations: G4RootAnalysisReader,
       G4RootRNtupleManager. Introduced independent numbering of warnings
       from reader.
     + Use G4Threading::IsMultithreadedApplication() instead of  
       G4AnalysisManagerState::IsMT() (now removed); this function fixes files
       clean-up at the end of sequential application built against
       multi-threaded libraries.
     + Added typedefs and functions for accessing iterators over H1, H2,
       Ntuples. Added G4AnalysisManager functions to access FirstIds.
     + Updated to g4tools version 1.9.4 (see History_tools).
 
   o Digits & Hits:
     -------------
     + Added Merge() methods to G4ScoringManager and G4VScoringMesh, needed
       for multi-threading. 
     + Changed method names in G4VScoringMesh and derived classes.
     + Added missing options in command-based scorers in G4ScoreQuantityMessenger
       and G4ScoreQuantityMessengerQCmd.
     + Added protoype cloning mechanism for sensitive-detectors, needed for
       multi-threaded mode.
 
   o Event:
     -----
     + First implementation of memory reduction mechanism in multi-threading
       mode. Adapted General Particle Source classes.
     + G4AdjointPrimaryGenerator: added splitting of forward gamma primaries to
       improve convergence of Reverse-Montecarlo.
 
   o Externals:
     ---------
     + Updated CLHEP module to development version 2.2.0.0:
       o Converted statics and globals to const, thread-local or atomic
         to improve thread safety.
       o Introduced CLHEP_THREAD_LOCAL and CLHEP_ATOMIC_INT_TYPE macros
         thread_local and atomic<int> keywords.
       o Fixed compilation warnings on clang and gcc-4.9 compilers for
         MTwistEngine.
 
   o Geometry:
     --------
     + navigation:
       o Fix in G4MultiNavigator to properly set 'fIdNavLimiting' index to
         navigator limiting the step, if only one navigator limits the step.
       o G4PropagatorInField: added new method GetCurrentEquationOfMotion().
       o Added internal method RecheckDistanceToCurrentBoundary() for
         G4SafetyHelper, G4Navigator and G4PathFinder, for checking a proposed
         displacement (new position) to see if it is in mother, and a proposed
         new direction to find potential backtrack to return to mother volume,
         or distance to new exit.
     + solids/Boolean:
       o Enabled G4MultiUnion wrapper.
     + solids/usolids:
       o Added UMultiUnion construct.
     + volumes:
       o Introduced pool G4NavigationHistoryPool for storage and reuse of
         navigation history levels collections.
         Disabled use of G4EnhancedAllocator in G4NavigationHistory accordingly.
       o Corrected implementation of copy-constructor and assignment-operator
         for G4NavigationHistory, to provide exact copy for size of the
         histories-level vector.
       o Use G4Allocator for dynamic allocations of G4NavigationHistory objects.
 
   o Global:
     ------
     + G4MTcoutDestination: by default ignores the printout during the
       initialization of each thread, as they are identical to each other and
       thus redundant.
     + Introduced G4SetPinAffinity() function (available only for LINUX): 
       "locks" a pthread to the given CPU index. This will be used by run
       category as an option to improve performance on high-core counts CPUs.
     + New utility function G4Threading::IsMultithreadedApplication() 
       and G4Threading::SetMultithreadedApplication(bool) used to specify which
       type of kernel is instantiated indipendently by build type (e.g. to
       distinghuish application migrated to MT or still using sequential run
       manager).
     + Define G4ThreadLocal to be 'thread_local' in case C++11 standard is
       used (enabled through use of flag G4USE_STD11); directly adopt CLHEP
       classes in such a case instead of G4MT* wrappers, if keyword is
       supported.
     + Added forward of cout and cerr in MT to master G4coutDestination
       if setup in client derived classes. To be used by special
       sessions (e.g. GUI) that want to intercept thread cout/cerr.
     + G4Physics2DVector::Retrieve(): added extra protection to fix
       Coverity reports in classes which are using 2-D vector.
     + Changed date for release 10.1-beta.
 
   o Graphical Representations:
     -------------------------
     + Introduced operator<< for const reference G4AttDefs map.
       Deprecated const pointer equivalent.
 
   o Intercoms:
     ---------
     + G4UIparameter: improved dignostic message of CandidateCheck().
     + Introducing "/control/cout/ignoreInitializationCout" UI command to
       omit G4cout from threads during initialization, as they should
       be identical to the masther thread.
     + Introducing new UI commands /control/doif and /control/getVal.
     + Extended use of "/control/macroPath" UI command to now also apply to
       macros called inside a loop.
     + Removed unnecessary source file G4AnyType.cc, as all symbols are inlined.
 
   o Interfaces:
     ----------
     + G4UIQt:
       o Changed help tree splitter from vertical to horizontal.
         Added method to display text in HTML.
       o Changed help display to render parameters in a QTableView.
       o Changed window expanding policy. Now when expanding main window, it
         will keep the size of the viewer.
       o When choosing "pick" icon, it will now apply picking to true.
       o Fixed a Qt function that was only defined for Qt5.
 
   o Materials:
     ---------
     + New classes G4UCNMaterialPropertiesTable and G4UCNMicroRoughnessHelper
       for microroughness probability values and calculation of microroughness
       in materials.
     + G4SandiaTable: make run time methods const, as materials are shared
       between threads; added new methods GetSandiaCofWater(),
       GetWaterEnergyLimit() and GetWaterCofForMaterial().
     + G4Material: improved material printout. Addressing problem report #1563.
     + Make G4Material copy constructor private.
     + Replaced size_t with int type for 'fNumberOfIsotopes' in G4Element
       and 'fNumberOfComponents' and 'fNumberOfElements' in G4Material.
       Adapted code accordingly.
     + G4NistmaterialBuilder: added new material G4_lBr, as STP Bromine is
       mainly liquid while in NIST DB it is described as a gas.
       Data taken from: http://en.wikipedia.org/wiki/Bromine.
       Addressing problem report #1607.
 
   o Particles:
     ---------
     + Updated particle properties to PDG-2013.
     + Added G4Exception in G4ElectronOcuppancy::AddElectron()
     + Compute life time from mass width for pi0 and sigma0.
       Addressing problem report #1570.
     + Fixed lack of Cl35 ground state in G4NuclideTable2.
       Fixed lack of "*std::log(2.0)" in some comparison of threshold time.
     + Fix in G4ExcitedMesonConstructor (missing pi + eta mode in DecayTable).
     + G4PhaseSpaceDecayChannel takes in to account mass width of daughter
       particles and gives the dynamical mass according to Breit-Wigner
       distribution. Added daughters_width in G4VDecayChannel.
       Addressing problem report #1629.
     + Fixed bug for mass width in G4VDecayChannelFillDaughters.
     + Added new constructor in G4DynamicParticle.
     + Fixed Coverity defects.
 
   o Physics Lists:
     -------------
     + Builders:
       o In all builders do not create a new instance of G4PreCompoundModel
         and G4ExcitationHandler to reduce number of its instances.
       o Avoid deleting models cross-sections in destructors of builders.
       o Convert G4INCLXXPiKBuilder to G4INCLXXPionBuilder.
         Set the maximum energy for G4INCLXXPionBuilder to 20 GeV.
         Added G4QGSPKaonBuilder.
       o Added G4QGSPLundStrFragmProtonBuilder outfitting QGSP model with
         G4LundStringFragmentation (instead of the G4QGSMFfragmentation);
         this appears to give better agreement with data at the energies above
         100GeV (tested for proton+C).
         Set minimum energy for G4QGSPLundStrFragmProtonBuilder at 100GeV.
     + Constructors:
       o electromagnetic:
         - G4EmDNAPhysics_option1: added new constructor for DNA physics.
         - G4EmLowEPPhysics: added G4LowEWentzelVIModel.
         - G4EmLowEPPhysics, G4EmStandardPhysics_option3,
           G4EmStandardPhysics_option4, and G4EmLivermoreStandardPhysics:
           cleanup gamma and e- models instantiation.
       o gamma_lepto_nuclear:
         - Switched on muon-nuclear by default.
         - Implemented thread safe UI messenger.
           Addressing problem report #1606.
         - G4BertiniElectroNuclearBuilder: fixed case of double deletion.
       o hadron_elastic:
         - G4HadronHElasticPhysics: use G4NuclNuclDiffuseElastic model
           instead of the Gheisha-based G4HadronElastic for all ions.
           Improved version of elastic, used temporarily only in FTFP_BERT_TRV
           as playground before becoming the default in all physics lists.
         - Fixed cases of inline static methods in G4HadronElasticPhysics.
       o hadron_inelastic:
         - Modified switching energies and models in HadronPhysicsINCLXX.
         - Added constructor for NuBeam and Shielding.
       o ions:
         - Reuse G4PreCompoundModel and not create a new local in ion physics
           classes, should reduce memory churn.
       o limiters:
         - G4StepLimiterPhysics: fixed minor memory leak reported by Coverity.
     + Lists:
       o Added experimental physics lists ShieldingM and NuBeam.
       o FTFP_BERT_TRV: use (temporary) G4HadronHElasticPhysics in order
         to allow testing of improvements in elastic.
       o FTFP_BERT_HP, QGSP_BIC_HP, QGSP_BERT_HP: set cut on proton to 
         zero to simulate all recoils from elastic scattering.
 
   o Electromagnetic Processes:
     -------------------------
     + DNA:
       o Modified G4DNAChampionElasticModel to read high precision differential
         cumulated cross-section.
       o Modified calculation of secondary kinetic for fast code.
         Updated chemistry.
       o Changed to faster method interpolation in G4DNABornIonisationModel .
       o G4ITSafetyHelper: force temporary usage of G4PathFinder.
       o Added interface class G4ITTimeStepper.
       o Added G4DNABornAngle and G4DNARuddAngle generators; ionisation models
         switch to use angular generator interface.
       o Switched to DNAion for Si in G4DNAGenericIonsManager.
       o Added Si to G4DNARuddIonisationExtendedModel.
         Updated G4DNAIonisation and G4DNARuddIonisationExtendModel for
         G4GenericIon usage.
       o Avoid usage of molecule iterators as pointers.
       o Fixes for Coverity defects.
       o Requires new data-set G4EMLOW version 6.39.
     + Low Energy:
       o Added new model class G4LowEWentzelVIModel.
       o G4LivermorePhotoElectricModel: added low-energy cross-section for water.
       o G4IonParametrisedLossModel, G4LivermoreIonisationModel: added
         G4DeltaAngle generator for angular distribution.
       o Added new class for ionisation cross-section model from Miranda et al.
         Updated G4empCrossSection and G4UAtomicDeexcitation accordingly.
       o Make G4AtomicTransitionManager become pure singleton shared between
         threads, with all run time methods const; Initialise() method to be
         called in the beginning of the run.
         Adapted classes accordingly.
     + Polarisation:
       o G4PolarizationMessenger: fixed Coverity report on non-initialized
         members.
     + Standard:
       o Removed method SampleDisplacement() in G4UrbanMscModel; code moved
         inside SampleScattering().
       o G4WentzelOKandVIxSection, G4WentzelVIRelXSection, G4WentzelVIModel,
         G4WentzelVIRelModel, G4eCoulombScatteringModel,
         G4hCoulombScatteringModel: added Boolean flag to identify in
         physics-list if multiple and single scattering are combined or not.
       o G4WentzelOKandVIxSection: fixed initialisation for low-energy model
         (this model is not combined with single scattering); fixed small
         inaccuracy for sampling.
       o G4WentzelVIModel, G4WentzelVIRelModel, G4WentzelOKandVIxSection, 
         G4eCoulombScatteringModel: revised and make consistent definition
         of min and max scattering angle for single scattering mode.
         Small optimisation to address some CPU penalty.
         Removed unused class members
       o G4WentzelVIModel: changed single scattering factor from 1.5 to 1.25.
         Added possibility to compute second momentum. Code cleanup.
       o G4BraggModel, G4BraggIonModel: added spin correction.
       o G4UniversalFluctuations: adapted code to allow for vectorised use of
         random engine for CPU performance improvement; no change to algorithms.
       o G4UrbanMscModel: modified ComputeGeomPathLength() method to provide one
         single return statement for easier printouts.
         Modification in order to improve timing by 1-14%, depending on the
         setup and cut. Made correction to improve efficiency in 'UseSafety'
         mode. Code cleanup.
       o G4DeltaAngle: added implementation of SampleDirectionForShell() virtual
         method; improved sampling.
       o G4eCoulombScatteringModel, G4hCoulombScatteringModel,
         G4IonCoulombScatteringModel: updated initialisation of vector of cuts;
         cut for recoil can be changed via '/run/setCut' command.
       o G4PAIModel, G4PAIModelData: improved cout.
       o Fixes for Coverity defects.
    + Utils:
       o G4VMultipleScattering: added possibility to build extra table for a
         model. Minor cleanup for post-safety computation.
         Introduced mechanism of displacement at geometry boundary default.
       o G4VEmModel, G4VEmFluctuationModel: defined different pattern to access
         to random generator for sequential and MT modes in order to save CPU
         in derived classes.
       o G4EmCorrections, G4EmElementSelector, G4VEmModel, G4VEmProcess,
         G4VEnergyLossProcess, G4VMultipleScattering, G4ionEffectiveCharge:
         general cleanup including: removed old commented code; use std::min
         and std::max instead of "if" where possible; use G4Log; reduced number
         of divisions.
       o Fix in G4VMscModel::ComputeSafety() pass 2nd parameter to
         G4SafetyHelper for optimisation. Added default for 2nd parameter,
         compatible with G4SafetyHelper.
       o G4VEnergyLossProcess: for sub-cutoff regime added upper limit when
         calling G4SafetyHelper.
       o G4VSubCutProducer, G4LossTableManager, G4VEnergyLossProcess: added new
         interface to allow for production of delta-electrons below production
         threshold.
       o G4EnergyLossMessenger, G4EmProcessOption: added extra flag and UI
         command "/process/em/deexcitationIgnoreCut" allowing to disable check
         on production threshold by deexcitation module.
       o G4VEnergyLossProcess, G4VEmProcess, G4VMultipleScattering: fix for
         cases of crash in G4WrapperProcess in sequential mode.
         Addressing problem report #1594.
       o G4EmSaturation: updated class design, VisibleEnergyDeposition() method
         become virtual allowing application of user alternative algorithms.
         Added protection to throw exception if e- or proton are not defined
         when used in VisibleEnergyDeposition(). Do not instantiate G4Electron
         and G4Proton by default in InitialiseBirksCoefficient().
         Moved check on existence of e- and proton from run time to
         initialisation (i.e. it is now done only once).
       o G4EmProcessOptions, G4EnergyLossMessenger: added interface methods and
         UI command '/process/msc/DisplacementBeyondSafety'.
       o G4LossTableManager: helper classes are instantiated only if user
         requests via access method.
         Minor change to modifiers. Changed initialisation of G4EmSaturation
         class to work in MT mode.
       o G4LossTableManager, G4VEnergyLossProcess, G4VEmProcess: improved
         initialisation; moved modifiers for parameters from inline to source
         and added extra check on parameter value; throw warnings if parameters
         are out of range.
       o Fixes for Coverity defects.
 
   o Generic Processes:
     -----------------
     + Management:
       o Added new process type for UCN processes in G4ProcessType.
     + Optical:
       o Implemented full UNIFIED reflectivity probabilities when a dichroic
         surface reflects.
       o G4OpWLS, G4OpRayleigh: always rebuild the integral-table in
         BuildPhysicsTable() method.
 
   o Hadronic Processes:
     ------------------
     + Made pointers to G4ParticleDefinition use const.
     + cross_sections
       o Fixed use of inline keyword for methods defined inside
         G4ElectroNuclearCrossSection.
       o Minor reshuffling of some variables to calculate some variables only
         when used to prevent overflows.
       o Added protection in destructor of G4ElectroNuclearCrossSection
         against NULL pointer entries in cache.
       o G4KokoulinMuonNuclearXS does not call anymore explicitly
         clearAndDestroy() for the cross-section table, as the underlying
         physics vectors are managed by allocators.
       o G4ChipsHyperonElasticXS : avoid to exclude Sigma+ in the set of
         hyperons which can be treated by Chips elastic scattering.
       o G4ChipsAntiBaryonElasticXS: include anti_Omega- in GetPTables().
     + management
       o G4HadronicProcess: added method GetHadronicInteractionList() allowing 
         access to the list of registered models, removed obsolete access methods
         to G4EnergyRangeManager.
       o G4HadronicProcessStore: changed to become G4ThreadLocalSingleton,
         allowing for automatic destruction of hadronic models cross-sections.
         Correction in Clear() for stopping processes being deleted twice (once
         because are registered as normal processes and once are registered as
         extra processes).
         Added printout information for deuteron, triton, He3 and alpha.
       o G4EnergyRangeManager: some cleaned up; instead of c-array, models
         pointers are now stored in STL vectors.
     + models/abla
       o Added model-description methods to the interface.
       o Fixes for Coverity defects.
     + models/binary_cascade
       o Extended model-description to cover de-excitation model.
     + models/cascade
       o Added new pi-nucleon 2-body angular distributions: G4PipP2PipPAngDst,
         G4PimP2PimPAngDst, G4Pi0P2Pi0PAngDst and G4PimP2Pi0NAngDst.
         Below 2.6 GeV, distributions taken from SAID phase shift calculations
         with Coulomb phase removed. Above 2.6 GeV, taken from data.
       o G4NucleiModel, G4CascadeCoalescence, G4CascadeInterface: moved static
         members which use envvars into const data, and initialize them in ctors.
       o G4PreCompoundDeexcitation: attempt to use shared instance of
         PreCompound by fetching from hadronic registry.
     + models/coherent_elastic
       o Added new dipole model class G4LEHadronProtonElastic.
       o New class G4hhElastic, implementation of the qQ-model with springy
         Pomeron for hadron-hadron elastic scattering.
       o G4LEnp, G4LEpp: added SampleInvariantT() method and inheritance
         from G4HadronElastic; implemented SampleT() method in G4LEnp.
         Fix in G4LEpp for incorrect use data array, used GetInvariantT()
         inside ApplyYourself().
       o G4NuclNuclDiffuseElastic: fix to nuclear radius (which was zero),
         Fixed deletion in destructor.
       o Fix in G4DiffuseElastic.
     + models/de_excitation
       o Added ModelDescription() to G4ExcitationHandler.
     + models/im_r_matrix
       o Do not delete physics vector explictly in destructors since they are
         managed by allocators in G4XResonance, G4XAnnihilationChannel,
         G4XNNElasticLowE, G4XnpElasticLowE and G4XnpTotalLowE.
       o Fixed out of bound error in G4DetailedBalancePhaseSpaceIntegral,
         reported by Coverity.
     + models/inclxx
       o Updated to INCL++ v5.2_rc2: extending INCL++ up to 15-20 GeV incident
         energy. A few improvements, minor bug fixes and speed-ups.
       o Fix: avoid negative Fermi energies for delta resonances.
       o Fixed crash in p+He2 reactions.
     + models/lend
       o Protection for potential division by zero in tpia_misc and
         tpia_kinetics.
     + models/lepto_nuclear
       o Reuse G4PreCompoundModel and G4ExcitationHandler and not instantiate
         locally as new; do not delete objects which following
         G4HadronicInteraction interface to avoid double deletion.
     + models/management
       o Added DeExciteModelDescription() to G4VPreCompoundModel and provided
         default implementation.
       o G4HadronicInteractionRegistry: added new method FindAllModels().
       o G4HadronicInteraction: removed unnecessary dependency on
         G4ReactionDynamics.
     + models/parton_string
       o Fix in G4VPartonStringModel, occuring when debugging with residual
         nucleus mass number equal to zero.
         Improved code to treat an ExcitedString when it is a hadron stored as
         a track of the ExcitedString; needed for a correct processing of
         quark-exchange processes in FTF model.
       o Fix on the positions of the increment of the variables "StateQ++" and
         "StateAQ" in G4LundStringFragmentation. This fix increases the
         production of neutral pions, while decreasing the production of
         charged pions. Therefore it affects the simulation of hadronic
         showers by increasing the electromagnetic component, which makes 
         the showers more compact and with higher energy response. 
     + models/pre_equilibrium
       o Added DeExciteModelDescription() to G4PreCompoundModel.
     + models/radioactive_decay
       o G4RadioactiveDecayMode: added double beta- decay and double beta+
         decay to enum
       o G4RadioactiveDecay: added dummies for double beta- decay and double
         beta+; long ground state lifetimes with no decay scheme.
         Addressing problem report #1560.
         Requires new data set RadioactiveDecay-4.1.
     + models/rpg
       o G4RPGInelastic: defined GHADLISTSIZE, now needed after removal of
         class G4ReactionDynamics.
     + processes
       o Added new G4UCN* processes and utility classes.
     + stopping
       o G4HadronStoppingProcess: in destructor do not de-register if Boolean
         flag G4HadronicProcess::deRegister is true, this is needed to cope
         with the modified thread-local-singleton G4HadronicProcessStore.
     + util
       o Removed obsolete G4ReactionKinematics and G4ReactionDynamics classes.
 
   o Run
     ---
     + Introduced pin affinity functionalities.
     + Use G4Threading::SetMultithreadedApplication(true) if a
       G4MTRunManagerKernel is instantiated.
     + Increase verbosity in case of NULL process-manager pointer in
       multi-threaded mode.
     + Modified G4AdjointSimManager, G4AdjointSimMessenger and
       G4AdjointPrimaryGeneratorAction to add forward primary splitting
       for Reverse MonteCarlo.
     + Explicitly invoke deletion of new G4NavigationHistoryPool instance
       in G4RunManagerKernel at job's end.
     + Fixes for Coverity defects.
 
   o Tracking
     --------
     + Corrections in G4AdjointSteppingAction and G4AdjointTrackingAction
       to have the treatment of adjoint and forward tracks in the same event.
 
   o Visualization:
     -------------
     + management:
       o Introduced G4VGraphicsSystem::fileWriter to allow special informational.
       o Added run ID to G4Atts of user drawn trajectories.
       o Added '/vis/touchable/dump' command; dumping G4Atts to G4cout.
       o Added parameter to '/vis/scene/add/axes' command to suppress
         annotations.
       o /vis/specify and /vis/scene/add/logicalVolume: added flag for
         drawing/suppressing axes.
       o G4VisCommands: Fixed deprecated call to GetAttDefs.
       o Fix for NULL pointer in G4VSceneHandler.
     + modeling:
       o Introduced G4TouchableDumpScene and G4PseudoScene.
       o G4TrajectoriesModel: Add run ID.
       o G4PhysicalVolumeModel: improved constructor.
     + DAWN:
       o DAWNFILE declared as G4VGraphicsSystem::fileWriter.
     + gMocren:
       o Fixed memory leak in G4GMocrenFile. Addressing problem report #1585.
       o gMocren declared as G4VGraphicsSystem::fileWriter.
     + HepRep:
       o HepRep and HepRepFile declared as G4VGraphicsSystem::fileWriter.
     + OpenGL:
       o Improvements to class design and some bug fixes for picking.
       o Some Qt fixes and improvements.
       o Improved protection of pointers.
       o G4OpenGLImmediateSceneHandler: split AddPrimitivePreamble() in three
         functions to avoid dynamic_cast. Gaining up to 20% speedup in drawing.
       o G4OpenGLViewer: time optimization in printEPS() for Immediate mode;
         saving 70-80% in drawing time on batch drawing, 10-20% when printing
         with a screen viewer.
         Manage bad file name case (missing directory) in printGl2PS().
       o G4OpenGLQtViewer: added ability to change the color of text in
         DrawText().
       o New Viewer parameters info panel.
       o G4OpenGLQtViewer: fixed problem in viewer/set parameters.
       o Speed improvements by avoiding a dynamic_cast.
     + OpenInventor:
       o G4OpenInventorXtExaminerViewer: adjusted dimensions of viewer aux
         window; implemented look-ahead for better tracking of trajectory
         animation; implemented mouse-over readout for trajectories.
     + VRML:
       o VRML1/2File declared as G4VGraphicsSystem::fileWriter.
     + XXX:
       o G4XXXFile declared as G4VGraphicsSystem::fileWriter.
 
   o Data Sets:
     ---------
     + G4EMLOW-6.39:
       o Added sigmadiff_cumulated_elastic_e_champion_hp.dat
         and corresponding macro.
       o added sigmadiff_cumulated_ionisation_e_born_hp.dat and
         sigmadiff_cumulated_ionisation_p_born_hp.dat.
       o Updated electron inelastic files for Si (microelec).
       o Added cross-section shell data by Miranda et al. (2014).
       o Added sigma_ionisation_(b,be,li)_rudd.dat, sigma_ionisation_p_rudd.dat
         (up to 1 GeV), sigma_ionisation_si_rudd.dat and fluor_Bearden data to
         dna module.
     + PhotonEvaporation-3.1:
       o Corrections of of +X, +Y, ... levels for compliance with latest
         isomer list.
       o 212Bi (z83.a212, line 8): change strength of gamma transition
         (415.272 keV to ground state) from 4.4 to 0.4.
         Addressing problem report #1565.
     + G4RadioactiveDecay-4.1:
       o Corrections for X,Y,Z,W and A levels.
       o Added observationally stable (very long lifetime) ground states to 20
         nuclides: 4 are thought to decay by alpha emission, 6 by double beta+
         decay and 10 by double beta- decay.
         G4RadioactiveDecay now recognizes double beta- and double beta+ decays,
         but currently does nothing when they occur.
 
   o Examples:
     --------
     + Updated reference outputs, macros and scripts.
     + advanced/air_shower
       o Follow migration of MT-ready GPS code.
     + advanced/amsEcal
       o Added protection in RunAction against division by zero.
         Addressing problem report #1522.
     + advanced/gammaknife
       o Follow migration of MT-ready GPS code.
     + advanced/gammaray_telescope
       o Prepare code for migration to multi-threading.
       o Removed deprecated RO geometry.
     + advanced/human_phantom
       o Follow migration of MT-ready GPS code.
     + advanced/underground_physics
       o Migrated code to multi-threading.
     + advanced/xray_fluorescence
       o Migrated code to multi-threading.
       o Completed migration to g4tools (removed AIDA dependency).
     + advanced/xray_telescope
       o Migrated code to multi-threading.
       o Follow migration of MT-ready GPS code.
       o Added definition of muons and short-lived.
       o Revised method book() of analysis singleton.
     + extended/analysis
       o Use physics list FTFP_BERT in AnaEx01,02,03. 
         Removed custom PhysicList class from shared.
       o Create two ntuples in AnaEx02,03 instead of one in order to
         demonstrate how to do this with all tools.
     + extended/common
       o Removed fPrintModulo from ExG4EventAction01 and fSetPrintModuloCmd
         from ExG4EventAction01Messenger, now obsolete.
     + extended/common/analysis
       o Updated for changes in analysis category: ntuple columns of vectors
         (disabled), changes in ntuple_booking. Updated to g4tools-1.10.0.
       o Added typedefs and functions for accessing iterators over H1, H2,
         Ntuples.
       o Imported tools/hbook/*.f files from analysis examples.
     + extended/electromagnetic/TestEm1
       o DetectorConstruction: define heavy water vapor starting from isotopes.
       o Removed printout from second thread in TestEm1.in macro.
       o Introduced function Run::EndOfRun().
       o Removed PhysicsList::SetCuts().
       o Simplified PhysicsList and its messenger, accordingly.
       o PhysicsList: added "emlowenergy" option.
     + extended/electromagnetic/TestEm2
       o Introduced function Run::EndOfRun().
       o Added "emlowenergy" option for EM physics.
       o Removed PhysicsList::SetCuts().
     + extended/electromagnetic/TestEm3
       o Enabled multi-threading; implemented required migration.
       o Added "emlowenergy" option for EM physics.
       o Removed PhysicsList::SetCuts().
     + extended/electromagnetic/TestEm5
       o Introduced function Run::EndOfRun().
       o Added "emlowenergy" option for EM physics.
       o Removed PhysicsList::SetCuts().
       o PhysicsList, PhysicsListMessenger: removed local cuts commands.
       o Added possibility to change number on threads though 2nd parameter
         in command line.
     + extended/electromagnetic/TestEm6
       o Suppressed EventAction and its messenger.
     + extended/electromagnetic/TestEm7-9
       o Added "emlowenergy" option for EM physics.
       o Removed SetCuts() method and corresponding UI commands,
         applied code guidelines.
     + extended/electromagnetic/TestEm11
       o Introduced function Run::EndOfRun().
       o HistoManager: removed hbook.
       o Set "ToBeBroadcasted == false" for UI commands that modify physics
         list and detector since these should be executed only by master.
       o Removed SetCuts() method and corresponding UI commands,
         applied code guidelines.
     + extended/electromagnetic/TestEm12
       o Enabled multi-threading; implemented required migration.
       o Added "emlowenergy" and dna_option1 in physics-list.
       o Removed SetCuts() method and corresponding UI commands,
         applied code guiedlines.
     + extended/electromagnetic/TestEm13-14
       o Removed SetCuts() method and corresponding UI commands,
         applied code guidelines.
     + extended/electromagnetic/TestEm15
       o Removed PhysicsList::SetCuts().
     + extended/electromagnetic/TestEm16
       o Suppressed EventAction and its messenger.
     + extended/electromagnetic/TestEm18
       o Removed PhysicsList::SetCuts().
     + extended/eventgenerator/exgps
       o Migrated to use of built-in physics list.
         Use QGSP_BIC physics list to avoid dependency on data.
       o Removed 'drawTracks' and 'printModulo' commands and adapted macro files
         to use the equivalent built-in macro commands.
       o Implemented changes needed for MT-ready GPS, substantially reducing
         memory footprint in nulti-threaded mode.
     + extended/eventgenerator/HepMC/MCTruth
       o Changes to comply with coding conventions.
     + extended/eventgenerator/pythia/decayer6
       o Removed custom physics-list.
       o Fixed order of instantiating Vis/UI.
       o Replaced use of std::cerr with G4cerr.
     + extended/exoticphysics/channeling
       o New example showing how channeling of 400 GeV/c protons in bent
         Si crystal can be simulated in Geant4.
     + extended/exoticphysics/phonon
       o Fix in CMake script to copy data in build directory.
     + extended/exoticphysics/ucn
       o New example demonstrating the functionality of UCN physics.
     + extended/g3tog4
       o Moved data directory in clGeometry.
     + extended/hadronic/FissionFragment
       o New example to exercise fission fragmentation.
     + extended/hadronic/Hadr00
       o HistoManager: added histogram with cross-section per volume.
     + extended/hadronic/Hadr02
       o Applied code guidelines and code cleanup.
     + extended/hadronic/Hadr03
       o Enabled multi-threading; implemented required migration.
       o Defined a stucture for nuclear channel data.
       o Use G4HadronElasticPhysicsHP in physics-list.
       o Histograms: changed numbering scheme. Added histo of atomic mass.
       o EndOfRun: introduced optional print and UI command to control it.
       o Register RunMessenger in RunAction instead of Run.
     + extended/hadronic/Hadr04
       o Pass primary kinematic to Run.
       o NeutronHPphysics: check for pre-existing processes.
     + extended/hadronic/Hadr06
       o New example to survey energy deposition and particle's flux
         from an hadronic cascade.
     + extended/medical/electronScattering
       o Migration to multi-threading.
       o Removed PhysicsList::SetCuts().
     + extended/medical/electronScattering2
       o Fixed memcheck errors: foil thickness now defined in Detector
         constructor.
       o Allow for selection of physics-list option4.
       o Follow migration of MT-ready GPS code.
       o Applied code guidelines; added G4EmLowEPPhysics.
     + extended/medical/fanoCavity
       o Fix to proper initialisation of members in RunAction class.
     + extended/medical/GammaTherapy
       o Applied code guidelines.
     + extended/optical/LXe
       o Removed shared process pointers between threads.
     + extended/optical/WLS
       o Follow migration of MT-ready GPS code.
     + extended/parallel/MPI
       o Added first version of G4RunMerger and G4ScorerMerger.
       o New CMake configuration.
     + extended/parameterisations/gflash
       o Follow migration of MT-ready GPS code.
     + extended/persistency
       o Applied code guidelines.
     + extended/radioactivedecay/rdecay01
       o Enabled multi-threading; implemented required migration.
     + extended/visualization
       o Migrated 'userVisAction' example to multi-threading (based
         on basic/B1 example).
 
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