ReleaseNotes/ReleaseNotes.11.1.html

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<B>Geant4 11.1 Release Notes</B>
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<FONT SIZE="-1" COLOR="#5C3317">
<B><I>December 9<SUP>th</SUP>, 2022</I></B>
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<BR><BR>
<HR ALIGN="Center" SIZE="7%">
<P>
The code and binary libraries for the supported systems are available
through our <A TARGET="ext" HREF="http://cern.ch/geant4/support/download">Source
Code Web page</A>.
</P>
<P>
<I>We are grateful for the efforts of Geant4 users who have provided
   detailed feedback or comprehensive reports of issues.
   We thank in particular those who have contributed corrections,
   improvements or developments included in this release. </I>
</P>
<P>
Please refer to the
<A TARGET="ext" HREF="http://cern.ch/geant4/support/user_documentation">Geant4
User Documentation</A> for further information about using Geant4.
</P>

<H2><I>Contents</I></H2>
<OL>
<LI><A HREF="#1.">Supported and Tested Platforms</A></LI>
<LI><A HREF="#2.">Supported CLHEP, VecGeom and PTL versions</A></LI>
<LI><A HREF="#3.">Items for migration of the user code</A></LI>
<LI><A HREF="#4.">New Developments and Capabilities</A></LI>
<LI><A HREF="#5.">Expected effects on physics and performance</A></LI>
<LI><A HREF="#6.">Known Run-Time Problems and Limitations</A></LI>
<LI><A HREF="#7.">Compilation Warnings</A></LI>
<LI><A HREF="#8.">Geant4 Software License</A></LI>
<LI><A HREF="#9.">Detailed list of changes and fixes</A></LI>
<LI><A HREF="#10.">Appendix</A></LI>
</OL>

<P> </P>
<A NAME="1."></a>
<HR>

<!-- ============================================== -->

<H2>1. Supported and Tested Platforms</H2>

Platforms:
<UL>
<LI>Linux, gcc-8.3.1.<BR>
    Tested on 64 bit architectures (Intel or AMD) with
    CERN CentOS Linux 8 (CC8) (based on CentOS Linux 8).</LI>
<LI>macOS 13.0.1 Ventura with Apple LLVM/Clang-14.<BR>
    Tested on 64 bit architectures (Intel or Apple Silicon).</LI>
<LI>Windows-10 with Visual C++ 14.33 (Visual Studio 2022).</LI>
</UL>

More verified and tested configurations (64 bits):
<UL>
<LI>Linux, gcc-9.3/10.3/11.3/12.2, clang-10/11/13/14</LI>
<LI>Linux, Intel-icc 2021.7, Intel-icx 2022.2</LI>
<LI>macOS 12.6 Monterey with Apple LLVM/clang-14</LI>
<LI>macOS 11.7 Big Sur with Apple LLVM/Clang-12</LI>
<LI>Windows/10 with Visual C++ 14.29 (Visual Studio 2019)</LI>
</UL>

<P> </P>
<A NAME="2."></A>
<HR>

<!-- ============================================== -->

<H2>2. Supported CLHEP, VecGeom and PTL versions</H2>

This release of Geant4 has been verified with
<A TARGET="ext" HREF="http://cern.ch/clhep/">CLHEP</A>, release <B>2.4.6.2</B>.
Use of a different CLHEP version may cause incorrect simulation results.<BR>
NOTE: an internal module of the relevant CLHEP classes is provided and can be
used as alternative to an external CLHEP library installation.<BR>
A configuration option allows a Geant4 installation to use the
<A HREF="https://gitlab.cern.ch/VecGeom/VecGeom/">VecGeom Library</A>
primitives, to replace the original Geant4 solids.<BR>
VecGeom version <B>1.2.1</B> has been tested when using such configuration.<BR>
PTL version <B>2.3.3</B> is required for external installation of the
<A HREF="https://github.com/jrmadsen/PTL">PTL tasking library</A>.<BR>
CMake <B>3.16</B> is the minimum version required to build Geant4.

<P> </P>
<A NAME="3."></A>
<HR>

<!-- ============================================== -->

<H2>3. Items for migration of the user code</H2>

Listed here is some relevant information on developments included in this
release.
Note that for all users a full re-installation of libraries (or a full
re-compilation) and a re-compilation of user applications is required.

<P> </P>
<B>General</B>
<P> </P>
<UL>
<LI>Using standard install location for CMake <TT>find_package</TT>
    configuration files under $CMAKE_INSTALL_PREFIX/lib/cmake/Geant4.<BR>
    Application builds using CMake will need to set <TT>Geant4_DIR</TT> to
    this new location, or use CMAKE_PREFIX_PATH, to find Geant4.</LI>
<LI>Added required configuration to be able to generate DEB/RPM packages
    with CPack.</LI>
<LI>Added new scheme to locate required datasets, making use of environment
    variables optional. See <A HREF="#10.">Appendix</A> for details
    on potential configuration and C++ changes required.</LI>
<LI>Removed Geant4Py from toolkit build with distribution and support moved
    to <A HREF="https://github.com/koichi-murakami/g4python">upstream repository</A>.<BR>
     All support and feature requests should be directed to the related
    <A HREF="https://github.com/koichi-murakami/g4python/issues">GitHub Issue
    Tracker</A>.</LI>
<LI>Retired <TT>tasking</TT> module and merged contents in <TT>global</TT> and
    <TT>run</TT> categories.</LI>
</UL>

<P> </P>
<B>Geometry, Fields and Transportation</B>
<P> </P>
<UL>
<LI>Client code that uses the methods SetLowLooperThresholds() and/or
    SetHighLooperThresholds() introduced in release 11.0 for G4Transportation
    and G4CoupledTransportation, may need revision as now G4CoupledTransportation
    inherits from G4Transportation.</LI>
</UL>

<P> </P>
<B>Electromagnetic and optical physics</B>
<P> </P>
<UL>
<LI>New dataset G4EMLOW-8.2 is required and should be used.</LI>
</UL>

<P> </P>
<B>Visualization and Modeling</B>
<P> </P>
<UL>
<LI>Qt drivers require the Qt-5 platform. Qt-6 is not yet supported.</LI>
<LI>The GEANT4_USE_TOOLSSG CMake option for the ToolsSG visualisation driver
    has been removed, the driver now being automatically enabled.</LI>
</UL>

<P> </P>
<B>Data Sets</B>
<P> </P>
<UL>
<LI>This release introduces new data set versions.
    Please see the corresponding details in
    <A href="#data-notes">Section 9</A> of this document.
    <UL>
    <LI>New data set versions: <TT>G4EMLOW-8.2, G4NDL-4.7</TT>.
        Notice that the latter extends the number of materials for which
        thermal scattering data is available.</LI>
    <LI>In order to use <TT>ParticleHP</TT> for charged particles
        (protons, deuterons, tritons, He3 and alphas), an optional data
        set <TT>G4TENDL-1.4</TT> is required, and can be optionally
        downloaded in addition.</LI>
    </UL></LI>
</UL>

<A NAME="4."></A>
<HR>

<!-- ============================================== -->

<H2>4. New Developments and Capabilities </H2>

<B>General</B>
<UL>
<LI>Improved diagnostic for problems with primary track parameters or with
    secondary tracks in particle-change classes.</LI>
<LI>Introduced methods in the G4Track class that provide information on eventual
    short-lived parent hadronic resonances.</LI>
</UL>

<B>Analysis</B>
<UL>
<LI>Implemented support for writing analysis objects (histograms, profiles,
    n-tuples) in a file multiple times.</LI>
<LI>Added new UI commands for analysis file management:
    <TT>/analysis/openFile, write, closeFile</TT> and <TT>reset</TT>.
<LI>Added new analysis manager List functions and associated commands:
    <TT>/analysis/list [onlyIfActive]</TT>, 
    <TT>/analysis/xy/list  [onlyIfActive]</TT> where
    <TT>xy = h1, h2, h3, p1, p2, ntuple</TT>.</LI>
</UL>

<B>Geometry & Field</B>
<UL>
<LI>Added ability to optionally check for overlaps in parallel geometries
    through the <TT>/geometry/run/test</TT> UI command.</LI>
<LI>A new class G4TransportationParameters enables fine grain control of
    parameters for killing charged particles looping in a field.
    It is optional, but if created it applies to all stable charged particles.
    It must be instantiated in the master thread and all its parameters need
    to be assigned values.</LI>
<LI>Improved computation of surface area and cubic volume in specific solids.</LI>
<LI>Revised implementation of G4CoupledTransportation: now it inherits from
    G4Transportation and consolidates common variables and methods.</LI>
<LI>Revised G4FieldManager to ensure that <TT>epsilon_min/_max</TT> parameters
    are between 'minimum and maximum accepted' accuracy values to ensure robust
    behaviour of the integration.</LI>
<LI>Introduced a 2<SUP>nd</SUP> order symplectic integration method
    G4BorisDriver, targetting better control of energy conservation and
    conservation of phase space volume.</LI>
</UL>

<B>Materials</B>
<UL>
<LI>In the NIST material data-base, the material descriptions for G4_ADENINE,
    G4_GUANINE, G4_CYTOSINE, G4_THYMINE and G4_DEOXYRIBOSE have been updated
    and G4_PHOSPHORIC_ACID has been added.</LI>
<LI>Fixed density effect data for 8 materials, the most significant fixes are
    for <TT>G4_Tm</TT>, less relevant for <TT>G4_Be</TT>, <TT>G4_Mg</TT>,
    <TT>G4_Fe</TT>, and <TT>G4_Y</TT>.</LI>
</UL>

<B>Electromagnetic physics</B>
<UL>
<LI>Possibility to choose the model of fluctuations, using either the default
    G4UrbanFluctuation, or the alternative G4UniversalFluctuation (more accurate
    for thin targets), or G4LossFluctuationDummy (no fluctuations); new UI command
    defines model of fluctuations for the full setup; inside user physics lists
    it is possible to configure different fluctuation models per G4Region.</LI>
<LI>In G4UrbanMscModel, moving the safety computation before the algoritm of
    step limitation in order to save few instructions; should not affect results.
    Also, removed the computation and use of rangecut for step limitation,
    providing some CPU speedup.</LI>
<LI>New G4TransportationWithMsc specialised tranportation process combined with
    multiple-scattering, enabled by default with G4EmStandardPhysics_option1.
    May be enabled for any EM physics via the new UI command. Added also 
    possibility to enable internal stepping.</LI>
<LI>New model and process for muon pair production by muon.</LI>
<LI>Use G4LinhardSorensenIonModel for GenericIon in physics-lists for
    G4EmStandardPhysics_option3, G4EmStandardPhysics_option4,
    G4EmPenelopePhysics and G4EmLivermorePhysics.</LI>
<LI>Set EPICS2017 cross sections to be the default for Livermore gamma
    processes.</LI>
<LI>G4EmFluoDirectory: added new enumerator and introduced directory for
    the fluorescence data as a parameter, allowing to use alternative
    sets of atomic levels.</LI>
<LI>In optical physics, addded ability to calculate reflection/refraction from
    thin film coating.</LI>
<LI>New utility class G4EmDNABuilder, providing instantiation of standard
    and DNA processes/models in physics lists. Made G4EmDNAPhysics the base
    class for DNA physics constructors. Optimised IRT-syn DNA model.</LI>
<LI>Added parameters in DNA including the chemical molecules and reaction
    list involved in the radiolysis.</LI>
<LI>In G4DNA, incorporated model based on RPWBA to transport protons at
    <TT>100-300 MeV</TT>. Updated data structure to improve performance of the
    mesoscopic model. Also added nitrogen models from PTra code.</LI>
</UL>

<B>Hadronic physics</B>
<UL>
<LI>New integral method for hadronic processes (to take into account the change
    of hadronic cross-sections along a step for charged hadrons due to the
    decrease of hadron's kinetic energy by ionization loss.</LI>
<LI>Extended cross-sections for the computation of light anti-nuclei on hydrogen.
    Extended nuclear cross-sections also for light hypernuclei and anti-hypernuclei
    projectiles.</LI>
<LI>In coherent elastic hadronic model, added extensions for the simulation of
    a light anti-hypernucleus projectile elastic scattering on a target nucleus.</LI>
<LI>Extended nuclear elastic and inelastic physics to support light hypernuclei
    and anti-hypernuclei projectiles.
    Implemented extension of the FTF model to deal with the annihilation of 
    light anti-hypernuclei, for all energies; general improvement  of the 
    algorithm used to sample kinematical variables.
    In coherent elastic hadronic model, added extension for the simulation of
    light hypernuclei and anti-hypernuclei projectile elastic scattering on
    target nuclei.</LI>
<LI>In hadronic de_excitation, added limitation (A < 30) on decay of unphysical
    fragment, allowing for removal of light unphysical states and providing
    improved isotope production for the spallation fragments.</LI>
<LI>Improved FTF fragmentation to better describe the production of strange
    mesons and baryons in proton-proton interactions, as measured by the
    NA61/SHINE Collaboration.
    Also improved description of leading particle spectra in meson-nucleon
    interactions.</LI>
<LI>Revised the mixing probability between vector mesons (<TT>rho0</TT> and
    <TT>omega</TT>), as well as the probabilities for the ratios between
    pseudo-scalar and vector meson production for both FTF and QGS string
    fragmentations, to improve the description of NA61/SHINE experimental
    data.</LI>
<LI>New singleton class G4FTFTunings to allow to specify alternative sets
    of FTF parameters, called "tunes"; added also specific UI messenger.
    Currently, the feature is mostly meant for use in internal tests,
    further study and development; in the future, such tunes may be offered
    to users for specific studies.</LI>
<LI>Added option to G4HadronicParameters to control the diffraction 
    dissociation for nucleon projectile on target nucleus with baryon number
    greater than 10: by default, both projectile and target diffraction are
    switched off (but they are both active in the case of target nucleus with
    baryon number below or equal to 10; if instead the flag is set to "true",
    then both projectile and target diffraction are activated regardless of
    the target nucleus).</LI>
<LI>Introduced de-excitation of fragments with lambda inside; extended upper
    limit of atomic de-excitation from <TT>Z=100</TT> to <TT>Z=104</TT>.</LI>
<LI>Implemented new process for tau-neutrino hadronic inelastic physics.</LI>
</UL>

<B>Processes - General</B>
<UL>
<LI>Added flush() method to the fast simulation models, allowing to process the
    input buffer of the fast simulation model before the end of an event;
    triggered inside the event loop of G4EventManager, when the stack is empty.</LI>
<LI>Added a new utility method to access a process via sub-type.</LI>
<LI>Added extra virtual methods to G4VProcess base class, GetCreatorProcess()
    and MinPrimaryEnergy() needed for treating new combined processes.</LI>
<LI>Added new virtual method G4VDiscreteProcess::GetCrossSection()
    required in the implementation of integral approach.</LI>
</UL>

<B>Physics Lists</B>
<UL>
<LI>New G4NeutronGeneralProcess combined process; enabled in QBBC physics-list.</LI>
<LI>In G4EmStandardPhysics_option3, use options providing more accurate 
    simulation without loss of CPU performance; significantly improving
    fanoCavity results.</LI>
<LI>In G4EmStandardPhysics_option4, for low-energy electron ionisation
    the Penelope model is used instead of the Livermore model.</LI>
<LI>For FTFP_BERT and FTFP_INCLXX physics lists, it is possible to enable the
    transport of light hypernuclei and anti-hypernuclei, switched off by
    default. When enabled, the following interactions are included:
    a simplified treatment of weak decay; ionization and multiple scattering
    for the charged particles; nuclear elastic scattering; nuclear inelastic
    scattering, handled by either the FTF string model or by the INCL
    intranuclear cascade model, with a very simplified treatment of nuclear
    de-excitation.</LI>
<LI>In G4RadioactiveDecayPhysics time limit for radioactive decay is now
    coherent with the limit used in the nuclear de-excitation. The default
    limit of <TT>1 ns</TT> may be changed via UI command.</LI>
<LI>All DNA physics lists are now combined with standard EM models. The
    default upper energy limit of <TT>300 MeV</TT> may be increased or
    decreased. DNA physics may now work with radioactive decay.</LI>
</UL>

<B>Visualization and Interfaces</B>
<UL>
<LI>ToolsSG drivers for X11, Xt and Qt (short name TSG): now fully functional
    and supporting histogram plotting.</LI>
<LI>Fast rendering of complex meshes (special mesh rendering) for most drivers
    (see advanced examples ICRP110 and 145).</LI>
<LI>"Twinkling" of volumes when centring (<TT>/vis/viewer/centreOn</TT>, etc.).</LI>
<LI>Cutaway (<TT>/vis/viewer/addCutawayPlane</TT>) now available for all
    visualization drivers.</LI>
</UL>

<B>Examples</B>
<UL>
<LI>New set of extended examples, implementing different setups showing how
    to score particle fluences.</LI>
<LI>New example <TT>analysis/AnaEx03</TT>, showing usage of new analysis
    commands for file management, writing histograms and n-tuples in a file
    multiple times</LI>
<LI>In <TT>medical/dna</TT>, new example <TT>jetcounter</TT>, simulation of
    a typical experiment with the Jet Counter nanodosemeter; new example
    <TT>moleculardna</TT>, simulation of physics, physico-chemistry and
    chemistry processes in DNA geometries.</LI>
<LI>The example <TT>field/field01</TT> now demonstrates how to use the new
    G4TransporationParameters class, and shows a full set of ways to control
    the parameters for killing looping stable charged particles.</LI>
<LI>eFLASH_radiotherapy: new application simulating the beamline and energy
    spectra based on the Triode Electron Gun Equipped ElectronFlash Manufactured
    by Sordina Iort Technologies S.p.A. available at the Centro Pisano Flash
    Radiotherapy (CPFR) in Pisa.</LI>
<LI>New advanced example implementing a ICRP145 human phantom.</LI>
</UL>

<A NAME="5."></A>
<HR>

<!-- ============================================== -->

<H2>5. Expected effects on physics and computing performance</H2>

<B>Geometry & Field</B>
<UL>
<LI> A potential CPU time increase could be experienced due to the new maximum
     value for relative accuracy of integration of charged particle tracks in 
     field (<TT>epsilon_max</TT>). This can be due to extra steps for low
     energy electrons or muons moving in (near) vaccuum.
     Potential remedies: either use (the more efficient) templated equation
     of motion, stepper and driver, or investigate using an alternative driver
     which treats long steps (those with a large angle arc of the helix) using
     a separate helical method. To obtain it, use the four argument
     G4ChordFinder constructor, with a 4<SUP>th</SUP> argument
     <TT>stepperId=4</TT>.</LI>
</UL>

<B>Electromagnetic physics</B>
<UL>
<LI>A new process of muon pair production by muons is available and can be
    enabled via UI command or C++ interface through the G4EmExtraPhysics
    constructor.</LI>
<LI>G4GammaGeneralProcess is used for gamma physics by default. It brings few
    percent speedup depending on geometry setup and type of simulation.</LI>
<LI>Implemented usage of PhotoeffectBelowKShell flag, allowing to enable/disable
    photo-electron production below K-shell of an atom; by default this is
    enabled.</LI>
</UL>

<B>Hadronic physics</B>
<UL>
<LI>FTFP_BERT pion showers have slightly (~0.5%) higher energy response and
    (~2%) narrower lateral shapes with respect to release 11.0.3. QGSP_BERT
    pion showers have slightly (~0.5%) lower energy response and (~2%) wider
    lateral shapes. Comparing QGSP_BERT pion showers with those of FTFP_BERT,
    they become closer to each other with respect previous versions, with
    the QGSP_BERT pion showers still having slightly higher energy response,
    significantly wider energy resolution, and longer and narrower shower
    shapes with respect to those of FTFP_BERT.</LI>
</UL>

<P> </P>
<A NAME="6."></A>
<HR>

<!-- ============================================== -->

<H2>6. Known Run-Time Problems and Limitations</H2>
For a complete list of outstanding run-time problems and to submit any
problem you may find while running this version of Geant4, please refer
to the
<A TARGET="ext" HREF="http://cern.ch/geant4/problemreport">Geant4 Problem
Reporting System</A>.

<P> </P> 
<A NAME="7."></A>
<HR>

<!-- ============================================== -->

<H2>7. Compilation Warnings</H2>

There may be a few compilation warnings on some platforms.
We do not believe that any of these lead to incorrect run-time behaviour.

<P> </P>
<A NAME="8."></A>
<HR>

<!-- ============================================== -->

<H2>8. Geant4 Software License</H2>

A Software License applies to the Geant4 code.
Users must accept this license in order to use it.<BR>
The details and the list of copyright holders is available at
<A href="http://cern.ch/geant4/license">http://cern.ch/geant4/license</A>
and also in the text file <TT>LICENSE</TT> distributed with the source code.

<P> </P>
<A NAME="9."></A>
<HR>

<!-- ============================================== -->

<H2>9. Detailed list of changes and fixes</H2>

These are the main new features/fixes included in this release since the
last patched public release (for more detailed lists of fixes/additions,
please refer to the corresponding History files provided in most packages):

<P> </P>

<A NAME="conf-notes">
<H3><I>Configuration</I></H3></A>
<UL>
<LI><U>CMake</U>
    <UL>
    <LI>Added support for Intel-icpx/icx compiler and updated compilation flags
        for all Intel compilers.</LI>
    <LI>Enable ToolsSG and backends based on use of external libraries (Qt, X11,
        Xm, Win32). Backends made non-mutally exclusive; removed 
        GEANT4_USE_TOOLSSG public CMake option and flag, since ToolsSG is now
        built by default.</LI>
    <LI>Fixed bug in Qt3D viasualisation driver activation, based on report
        in Users Forum.</LI>
    <LI>Avoid setting LD_LIBRARY_PATH configuration on MacOS; adding paths to
        DLL into PATH on Windows.</LI>
    <LI>Corrected logic error in checking whether module is already composed.</LI>
    <LI>Deprecated tags `geant4_define_module`, `geant4_global_library_target`;
        decouples the source code organisation and the module/library
        composition commands; implementation reduced to emitting a CMake
        warning message on what to replace with.</LI>
    <LI>Updated CMake build scripts in all modules, by replacing
        <TT>geant4_global_library_target</TT> with direct file inclusion and
        call to <TT>geant4_add_category</TT> to define library build from source
        modules.</LI>
    <LI>Reorganised DLL import/export flags for single-module categories.</LI>
    <LI>Set default value of GEANT4_BUILD_BUILTIN_BACKTRACE to OFF.</LI>
    <LI>Do not use CMAKE_VERBOSE_MAKEFILE when building tests.</LI>
    <LI>Rationalized declaration and use of internal builds of required
        externals CLHEP, zlib, expat, PTL and tools libraries.</LI>
    <LI>Support declaration and composition of header-only modules and
        libraries.</LI>
    <LI>New geant4_module_check.py script to provide convenient interface for
        developers and testing to check module/library cycles and dependency
        inconsistencies. Filter out visualization driver modules from consistency
        check for visualization/management module. Filter out C++ filesystem
        library from checks.</LI>
    <LI>Adding geant4_module_sources command to enable appending of
        headers/sources to a module after creation.</LI>
    <LI>Providing GEANT4_BUILD_ENABLE_ASSERTIONS option to enable assert() in
        all release build modes (Release, RelWithDebInfo, MinSizeRel).</LI>
    <LI>Forward `CMAKE_<LANG>_FLAGS[_<MODE>]` flags to `geant4_add_test` so that
        a consistent set is used through the project.</LI>
    <LI>Promote INTERFACE module properties to PUBLIC when merging them into a
        non-INTERFACE final target.</LI>
    <LI>Removed retired <TT>tasking</TT> module and library from configuration
        files.</LI>
    <LI>Removed deprecated functions in G4DeveloperAPI and fixed typo that
        prevented installation of headers.</LI>
    <LI>Removed obsolete and now longer built G4gl2ps target.</LI>
    <LI>Allow library composition to be overriden in developer builds.</LI>
    <LI>Do not use <TT>readlink -f</TT> to support pre-Monterey macOS systems.</LI>
    <LI>Adding -Og to GNU/Clang default debug flags.</LI>
    <LI>Copy .clang-tidy file to build directory to assist run-clang-tidy
        reporting.</LI>
    <LI>In G4ConfigurePkgConfigHelpers.cmake, geant4-config.in for geant4-config
        generation: adding new flag <TT>--features</TT> (add vtk and qt3d features);
        allow use of md5sun if openssl missing; canonicalise prefix path.
    <LI>Added options --sh and --csh to geant4-config script.</LI>
    <LI>In G4ConfigureGNUMakeHelpers.cmake for geant4.[c]sh, geant4.bat
        generation: allow full path source in zsh, sh; unset local variables at
        the end; introducing GEANT4_DATA_DIR, with all data-set paths relative
        to this.</LI>
    <LI>Added commands for working with categories analagous to module commands.</LI>
    <LI>Added required configuration to be able to generate DEB/RPM packages
        with CPack.</LI>
    <LI>Use more standard install location for CMake files.</LI>
    <LI>Remove version from default installation directories.</LI>
    <LI>Rationalised interlinked PTL/TBB build options.</LI>
    <LI>G4ConfigureGNUMakeHelpers.cmake (geant4.[c]sh, geant4.bat generation):
        use the environment variable GEANT4_DATA_DIR as top data directory; the
        environment variables for individual dataset commented in scripts.</LI>
    <LI>Added source validation exception for G4FindDataDir generated header.</LI>
    <LI>Added <TT>-diag-disable=10441</TT> CXX option to Intel compilers, to
        disable icc compiler deprecation message.</LI>
    <LI>Removed Geant4Py from toolkit build, pointing users to upstream repository
        when setting GEANT4_USE_PYTHON in CMake configuration.</LI>
    <LI>Keep file timestamps from unpacked data libraries in CMake 3.24 and
        newer.</LI>
    <LI>Fix issue in Qt3D activation as reported on the Users Forum.</LI>
    <LI>Set CLHEP minimum version to 2.4.6.0 and VecGeom 1.2.0.</LI>
    <LI>New data sets G4EMLOW-8.2 and G4NDL-4.7 with new ThermalScattering data.</LI>
    <LI>Updated tag-IDs for 11.1.</LI>
    </UL></LI>
<LI><U>GNUMake</U>
    <UL>
    <LI>Added Linux-icx.gmk configuration for Intel OneAPI DPC++ compiler.</LI>
        Updated compilation flags for Intel icc/icx compilers.</LI>
    <LI>Enable <TT>-pthread</TT> only for MT builds in other configurations.</LI>
    <LI>Retired <TT>tasking</TT> category and library from build.</LI>
    <LI>Removed obsolete G4gl2ps module and library from build.</LI>
    <LI>Added <TT>--gcc-toolchain</TT> option for CXX and CC in Linux-clang.</LI>
    <LI>Added <TT>-diag-disable=10441</TT> option to Linux-icc, to disable
        Intel/icc compiler deprecation message.</LI>
    <LI>Silence ld warnings in Darwin setups.</LI>
    <LI>G4VIS_BUILD.gmk, G4VIS_USE.gmk: handle vis/ToolsSG by default.</LI>
    <LI>Replaced use of deprecated sprintf() with snprintf() in liblist.c tool.
        Fixed gcc compilation warnings.</LI>
   </UL></LI>
</UL>

<A NAME="ana-notes">
<H3><I>Analysis</I></H3></A>
<UL>
<LI>Implemented support for writing analysis objects (histograms, profiles,
    n-tuples) in a file multiple times: with Root output type, the object
    cycle number is attributed automatically; with other output types that
    do not support object cycles, the object name is appended with
    <TT>_vN</TT>, where <TT>N</TT> is the number of the write cycle, when
    the object is written more than once; no extension is added when the
    object is written for the first time (cycle 0).</LI>
<LI>Added new UI commands for analysis file management, supporting also multiple
    write with/without calling write and/or reset in between two runs:
    <TT>/analysis/openFile, write, closeFile</TT> and <TT>reset</TT>
    <TT>/analysis/setDefaultFileType</TT>.</LI>
<LI>Implemented new analysis manager List functions and associated commands:
    <TT>/analysis/list [onlyIfActive]</TT>,
    <TT>/analysis/xy/list  [onlyIfActive]</TT> where
    <TT>xy = h1, h2, h3, p1, p2, ntuple</TT>.</LI>
<LI>Added UI commands for visualization: <TT>/analysis/hn|pn/getVector</TT>.</LI>
<LI><U>Internal changes</U>:
    <UL>
    <LI>Replaced G4TNtupleDescription, G4RootPNtupleDescription structures with
        classes more suitable for adding members for handling n-tuple cycles.</LI>
    <LI>Changed namespace for g4tools code from <TT>tools</TT> to <TT>toolx</TT>
        for externals.</LI>
    <LI>Added G4RootRFile type = a tuple for the Root read file including its
        directories, analogue to G4RootRFile for Root output, used now in the
        G4RootRfileManager::fRFiles map instead of tools::rroot::file.
        This allows deleting file directories in the class destructor, and
        should fix a reported Coverity defect.</LI>
    <LI>Refactored analysis manager methods for file handling from the output
        specific managers in the common implementation in G4ToolsAnalysisManger. 
        Besides code simplification, this guaranties identical behaviour with
        generic analysis manager.</LI>
    <LI>Introduced a common implementation for histogram/profiles manager.<BR>
        New classes:
        <UL>
        <LI>G4VTBaseHnManager<DIM> - replaces G4VHn|PnManager.</LI>
        <LI>G4THnToolsManager<DIM,HT> - replaces G4H*|P*Manager classes.</LI>
        <LI>G4THnMessenger - replaces G4H*|P*Messenger class.</LI>
        <LI>G4HnDimension - helper type to manipulate ndim, xmin, xmake
            parameters.</LI>
        </UL>
        Updated classes:
        <UL>
        <LI>G4THnManager: added a vector of pairs of histogram and information
            as a data member to simplify the access when both objects are used.</LI>
        <LI>Updated HnInformation structures functions to use compacted
            parameters.</LI>
        <LI>Updated functions in G4AnalysisUtilities.</LI>
        <LI>In all messenger classes, replaced the usage of the analysis
            messenger helper with private helper functions.</LI>
        <LI>G4Plot* classes moved from <TT>management</TT> in <TT>hntools</TT>.</LI>
        </UL>
        Removed classes:
        <UL>
        <LI>G4VH1Manager, etc. for H2, H3, P1, P2.</LI>
        <LI>G4H1Manager, etc. for H2, H3, P1, P2.</LI>
        <LI>G4H1Messenger, etc. for H2, H3, P1, P2.</LI>
        <LI>G4ToolsAnalysisMassenger, G4FileMessenger.</LI>
        <LI>G4BaseHistoUtilities.</LI>
        </UL></LI>
    <LI>Use geant4_category_modules in CMake script to optionally add G4hdf5
        module to category.</LI>
    </UL></LI>
<LI><U>Fixes</U>:
    <UL>
    <LI>Fix in applying units in <TT>create</TT> and <TT>set</TT> UI
        commands.</LI>
    <LI>Fixes in deleting files: do not delete (not empty) main n-tuple files
        with generic analysis manager, delete empty n-tuple csv and xml files
        created on the main thread.
        Fix in deleting files (root): do not delete the final (merged) file
        when only n-tuples are present.</LI>
    <LI>Added a protection against nullptr in
        G4VAnalysisManager::GetNofNtuples(). Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2518">#2518</A>.</LI>
    <LI>Applied clang-tidy fixes.</LI>
    <LI>Fixed compilation warnings on gcc-12.</LI>
    <LI>Fixed compilation warnings for implicit type conversions on
        macOS/XCode 14.1.</LI>
    <LI>Fixed reported Coverity defects.</LI>
    </UL></LI>
</UL>

<A NAME="digits-notes">
<H3><I>Digitization &amp; Hits</I></H3></A>
<UL>
<LI>Added support for ntuple merging in G4TScoreNtupleWriter; it can be
    activated with G4TScoreNtupleWriter::SetNtupleMerging().</LI>
<LI>Canonicalise implementations of custom new() and delete() operators that
    use G4Allocator. Removed un-needed/duplicated checks on static allocator
    creation in member functions.</LI>
<LI>Applying standard clang-tidy plus range-based for and Boolean
    simplification fixes in scoring classes. General code tidy and modernization:
    use consistent, grouped ordering of public-protected-private members; do not
    override virtual members when no difference to base class implementation; use
    delegating constructors to remove duplicated code; use C++ Boolean
    true/false keywords.</LI>
<LI>G4VScoringMesh: fixed reported Coverity defects for use of <TT>auto&</TT>.
    Some minor code cleanup.</LI>
<LI>Removed large commented-out blocks of dead codein <TT>utils</TT> module.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="emstd-notes">
<H3><I>Electromagnetic Processes</I></H3></A>
<UL>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI>Resolved internal sub-modules dependency inconsistencies.</LI>
<LI><B>Adjoint</B>:
    <UL>
    <LI>G4AdjointComptonModel, G4AdjointCSManager: use updated interface
        to cross-section from G4VEmProcess.</LI>
    <LI>G4AdjointBremsstrahlungModel: use updated interface to G4EmModelManager.</LI>
    <LI>Fixed defects reported by Coverity in G4AdjointCSManager, to use
        <TT>auto&</TT>.</LI>
    </UL></LI>
<LI><B>DNA</B>:
    <UL>
    <LI>Added G4DNAPolyNucleotideReactionProcess and G4VDNAHitModel classes for
        DNA damage applications.</LI>
    <LI>Added nitrogen models from PTra code.</LI>
    <LI>Prefer pointer to <TT>const G4Material</TT> where possible.
        Removed useless <TT>const_cast</TT> of G4VSensitiveDetector.</LI>
    <LI>Optimised IRT-syn model, use reaction radius and reaction type from the
        reaction table.</LI>
    <LI>Fixed issue in IRT model: if the first IRTSampling won't give any reactions,
        stop the simulation; no StepProcessor set.
        Minor correction of IRT-syn model (chemistry): contact reactions should not
        happen after <TT>1 ps</TT>.</LI>
    <LI>Deleted G4VReactionType, G4DNAReactionTypeManager, G4DNAIRT_geometries,
        G4DNATotallyDiffusionControlled and G4DNAPartiallyDiffusionControlled.</LI>
    <LI>G4ITTransportation: Make PrepareState() more function-like, expect
        semicolon.</LI>
    <LI>G4DNAPolyNucleotideReactionProcess: some code restructuring.</LI>
    <LI>Added condition of water material for the OUTSIDE_OF_MOTHER_VOLUME
        warning in G4DNAMolecularDissociation::DecayIt().</LI>
    <LI>Added protection in G4DNACPA100IonisationModel for cumulative
        cross-section interpolation.</LI>
    <LI>Added protection for HighEnergyLimit/LowEnergyLimit in
        G4DNARPWBAIonisationModel and G4DNARPWBAExcitationModel.</LI>
    <LI>Added flag <TT>OctreeFinder</TT> in IRT_syn's Initialize() method.</LI>
    <LI>Added parameters including the chemical molecules and reaction list
        involved in the radiolysis.</LI>
    <LI>Modified the macro in G4Molecule and G4ITType for linker problems on
        Windows.</LI>
    <LI>Save local instances for recurrent access to particle definition in 
        G4DNAMillerGreenExcitationModel, G4DNARuddIonisationExtendedModel and
        G4DNARuddIonisationModel.</LI>
    <LI>Revised code to use G4Pow and G4Log consistently.</LI>
    <LI>In G4DNARuddIonisationExtendedModel, do not include ions that are not
        defined in G4DNAGenericIonsManager; corrected DNA ion definitions.<BR>
        Fixed common work between DNA physics and radioactive decay module;
        modification of the model scaling. Relation to the carbon ion is used
        for any ion, which has no data; low-energy limit is used now more
        correctly; all ions are stopped but not killed, as they may have
        radioactive decay at rest.</LI>
    <LI>Fix in G4KDTree algorithm. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2235">#2235</A>.
        Minor code cleanup.</LI>
    <LI>Added G4VUserBrownianAction class, used in G4DNABrownianTransportation
        and in G4DNAMolecularDissociation.</LI>
    <LI>Use <TT>int64_t</TT> for molecules width integer types.</LI>
    <LI>Added <TT>fResetScavenger</TT> data member in G4SchedulerMessenger.</LI>
    <LI>Incorporation of model based on RPWBA to transport protons
        at <TT>100-300 MeV</TT>.</LI>
    <LI>Added G4DNARPWBAExcitationModel and G4DNARPWBAIonisationModel.</LI>
    <LI>Updated data structure to improve performance of the mesoscopic model.</LI>
    <LI>Change scavenging filter of the IRT beyond <TT>1 us</TT>.</LI>
    <LI>Incorporation of models based on RPWBA (G4DNARPWBAExcitationModel and
        G4DNARPWBAIonisationModel) to transport protons at <TT>100-300 MeV</TT>.</LI>
    <LI>Updated data structure to improve performance of the mesoscopic
        model.</LI>
    <LI>Use <TT>thread-local</TT> flag in G4VMoleculeCounter.</LI>
    <LI>Replaced <TT>std::getenv()</TT> calls for data variables with
        G4FindDataDir() in data readers.
    <LI>G4DNAUeharaScreenedRutherfordElasticModel: code cleanup; introduced 
        low and high energy limit for the model; removed misleading
        G4Exception.</LI>
    <LI>G4DNAExcitation, G4DNAVibExcitation, G4DNARotExcitation: class cleanup
        according to the recent G4VEmProcess base class; model headers are moved
        to source; introduced C++11 features.</LI>
    <LI>Defining G4CT_MAX_COUNT for changing "compile time counter" depth to fix
        build errors on NVHPC compiler.</LI>
    <LI>Added missing headers inclusions for self-consistency.</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variables set
        but not used in G4ITNavigator2.</LI>
    <LI>Fixed Coverity reported defects.</LI>
    </UL></LI>
<LI><B>High Energy</B>
    <UL>
    <LI>G4hPairProduction, G4hPairProductionModel: removed not needed methods.</LI>
    </UL></LI>
<LI><B>Low Energy</B>
    <UL>
    <LI>G4LivermoreGammaConversionModel, G4LivermorePhotoElectricModel and
        G4LivermoreGammaConversion5DModel: set Spline interpolation for EPDL97.</LI>
    <LI>G4Rayleigh scattering moved boundary between low and high energy
        table from <TT>100 keV</TT> to <TT>150 keV</TT> to be coherent with G4GammaGeneralProcess.</LI>
    <LI>G4UAtomicDeexcitation, G4AtomicTransitionManager, G4ShellData, G4AugerData: 
        added de-excitation for heavy elements <TT>Z=101-104</TT>; removed
        commented lines; improved comments; improved code format;
        use pre-increment.</LI>
    <LI>G4AtomicTransitionManager: read fluorescence data using new interface
        G4EmParameters::FluoDirectory().</LI>
    <LI>G4PhotoEffectAngularGeneratorPolarized: include factor of 1/8 for L-shell
        differential cross-section. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2293">#2293</A>.</LI>
    <LI>G4LivermoreComptonModel: minor clean-up.</LI>
    <LI>Fixed use of potential uninitialised pointer in
        G4AtomicDeexcitation::GenerateParticles(..).</LI>
    <LI>Replaced <TT>getenv()</TT> calls for data variables with G4FindDataDir()
        in data readers.</LI>
    <LI>Fixed exception printout in Livermore models.</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variables set
        but not used in G4BoldyshevTripletModel::SampleSecondaries() and in
        G4Generator2BN::SampleDirection().</LI>
    <LI>Fixed Coverity warnings.</LI>
    <LI>Removed Latin-1 characters from description in banners.</LI>
    </UL></LI>
<LI><B>Muons</B>
    <UL>
    <LI>G4MuonToMuonPairProductionModel, G4MuonToMuonPairProduction: new 
        model and process for muon pair production by muon.</LI>
    <LI>G4MuIonisation: added selection of the model for energy loss
        fluctuations. Use G4MuBetheBloch model above <TT>0.2 MeV</TT>.</LI>
    <LI>G4MuBremsstrahlungModel: moved low energy limit from <TT>1 GeV</TT>
        to <TT>100 MeV</TT>.</LI>
    <LI>G4MuPairProductionModel: moved low energy limit from <TT>1 GeV</TT>
        to <TT>850 MeV</TT>.</LI>
        Some code cleanup: formatting, removed extra space lines.</LI>
    <LI>G4MuPairProductionModel, G4MuPairProduction: reorganised methods;
        use G4lrint.</LI>
    </UL></LI>
<LI><B>Standard</B>
    <UL>
    <LI>G4UrbanMscModel: moving safety computation before step limitation
        algorithms in order to save few instructions; should not affect results.
        Optimised some code. Added two extra class members. Improved code comments.
        Extended cache data with 5 variables for positrons;
        removed unused headers; minor saving of instructions.<BR>
        Removed computation and use of rangecut for step limitation: this change
        affects only EM option3 physics, making results closer to option4 and
        providing some CPU speedup.</LI>
    <LI>Fixed stopping power parameterisation below lowest energy point; apply
        unit factor to material vector and not to data inside each element vector.
        Implemented data tables for materials and not material-cut-couples;
        provided non-zero dEdx for ions with <TT>Z > 80</TT>.
        Included debug printouts protected by verbosity.</LI>
    <LI>G4eIonisation, G4hIonisation, G4ionIonisation: added selection of the
        model for energy loss fluctuations.</LI>
    <LI>G4hIonisation, G4ionIonisation: updated initialisation to be coherent with
        possible creation of combined DNA/standard physics-list: do not modify low
        energy limit for a model; define high energy limit considering high energy
        limit set in the physics-list and the mass of the particle.</LI>
    <LI>G4BetheBlochModel, G4BraggIonModel, G4LindhardSorensenIonModel: use the
        same computation of effective charge and energy at a step inside method
        CorrectionAlongStep(..); improved range of ions in the default EM physics
        configuration.</LI>
    <LI>G4AtimaEnergyLossModel, G4BetheBlochModel, G4BraggIonModel,
        G4LindhardSorensenIonModel: do not set effective charge to the model of
        energy loss fluctuation inside CorrectionAlongStep(..) method, it is
        done by G4VEnergyLossProcess. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2495">#2495</A>.</LI>
    <LI>G4LindhardSorensenIonModel: fixed CorrectionAlongStep() computations
        at low energy.</LI>
    <LI>G4PairProductionRelModel, G4eBremsstrahlungRelModel,
        G4PairProductionRelModel and G4eBremsstrahlungRelModel: added inclusion
        of headers of G4Exp, G4Pow to to make translation unit self-consistent.</LI>
    <LI>In G4WentzelVIRelModel, G4WentzelOKandVIxSection,
        G4LindhardSorensenIonModel and G4ICRU49NuclearStoppingModel, use
        G4AutoLock.</LI>
    <LI>G4PEEffectFluoModel: implemented usage of <TT>PhotoeffectBelowKShell</TT>
        flag, allowing to enable/disable photo-electron production below K-shell
        of an atom; by default this is enabled, so it affects the results; if 
        disabled, some CPU improvement may be expected.</LI>
    <LI>G4BetheHeitler5DModel: do not instantiate G4MuonPlus, G4MuonMinus inside
        the model to allow usage of this class in physics lists without muons.</LI>
    <LI>G4eBremsstrahlung, G4hIonisation: improved initialisation.</LI>
    <LI>G4eBremsstrahlungRelModel, G4eBremParametrizedModel: code cosmetics.</LI>
    <LI>Run clang-tidy, use <TT>nullptr</TT>, default and auto keywords; removed
        unneeded <TT>nullptr</TT> checks when deleting.</LI>
    <LI>Replaced <TT>getenv()</TT> calls for data variables with G4FindDataDir()
        in data readers.</LI>
    <LI>Requires data-set G4EMLOW-8.2.</LI>
    </UL></LI>
<LI><B>Utils</B>
    <UL>
    <LI>New G4TransportationWithMsc specialised transportation process; added
        related flag to G4EmParameters.</LI>
    <LI>G4EmConfigurator implemented model per region for
        G4TransportationWithMsc. Updated interfaces.</LI>
    <LI>G4EmTableType: added third peak energy in the data structure needed for
        Bremsstrahlung.</LI>
    <LI>G4VEnergyLossProcess: fill data structure for Bremsstrahlung type of
        cross-section only in the master thread; do not repeat it in each thread;
        removed ineffective cache from run time computation of cross-section.</LI>
    <LI>G4EmParameters, G4EmParametersMessenger: added extra Boolean flag for
        sampling of photoeffect below K-shell, which was introduced in ATLAS.</LI>
    <LI>G4EmParametersMessenger: improved instantiation order of UI directories;
        directories are created only in the master thread.
        Restored forgotten UI command to set number of bins per decade.</LI>
    <LI>G4EmModelManager: updated interface to Initialise() method;
        removed obsolete method Update().</LI>
    <LI>G4VEmProcess, G4VEnergyLossProcess, G4VMultipleScattering: use updated
        method of G4EmModelManager.</LI>
    <LI>G4EmParametersMessenger: restored UI command
        <TT>/process/em/integral</TT>.</LI>
    <LI>G4VEmProcess: updated methods to access cross-section at run time;
        implemented new virtual method GetCrossSection(); removed unused
        methods.</LI>
    <LI>G4EmProcessSubType: added extra types for muon pair production by muons
        and dark particles Bremsstrahlung.</LI>
    <LI>G4EmCalculator: use updated method from G4VEmProcess.<BR>
        Updated computation of ion dEdx. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2495">#2495</A>.<BR>
        Added extra flag <TT>applySmoothing</TT> to enable/disable smoothing
        algorithms to connect low-energy and high energy models; code clean-up.
        Fixed variable shadowing.</LI>
    <LI>G4LossTableManager: fixed selection of energy loss process used by
        G4EmCalculator.</LI>
    <LI>G4EmUtility: a new utility class.</LI>
    <LI>G4VMultipleScattering: updated arguments for AddEmModel(..),
        SetEmModel(..), and EmModel(..) methods from G4VEmModel* to
        G4VMscModel*. Removed two virtual calls.</LI>
    <LI>G4VMscModel: added Boolean flag <TT>useSpline</TT> and setter to
        allow choosing Spline for transport cross-section.</LI>
    <LI>G4LowEnergyEmProcessSubType: added sub-type ID (66) for DNAScavenger
        process.</LI>
    <LI>G4EmTableUtil: new utility to perform common computations at
        initialisation.</LI>
    <LI>G4VEmModel, G4EmCalculator, G4EmConfigurator: use G4EmUtility.</LI>
    <LI>G4VEmModel, G4VEmProcess, G4VEnergyLossProcess, G4VMultipleScattering
        and G4LossTableManager: use new utiity methods; updated sampling of
        random elements in compounds and random isotopes; code cleanup.</LI>
    <LI>G4EmLowEParameters: change default photon database to EPICS2017.</LI>
    <LI>G4VEmProcess, G4VEnergyLossProcess: for integral method, use master
        thread cross-section type and pointers directly; simplifying
        initialisation.</LI>
    <LI>G4EmParameters: update flag to tri-state for enabling it.
        Added extra parameter: type of fluctuation model.</LI>
    <LI>G4EmFluoDirectory: added new enumerator.</LI>
    <LI>G4EmParameters, G4EmLowEParameters, G4EmLowEParametersMessenger:
        introduced directory for the fluorescence data as a parameter, added 
        new UI command, improved information printout.</LI>
    <LI>G4EmFluoDirectory: added new enumerator.</LI>
    <LI>G4EmParameters, G4EmLowEParameters, G4EmLowEParametersMessenger:
        introduced directory for the fluorescence data as a parameter;
        added new UI command; improved information printout.</LI>
    <LI>G4EmParametersMessenger: added extra UI command to define fluctuations
        model.</LI>
    <LI>G4VEnergyLossProcess: moved out common computations to G4EmTableUtil;
        use G4EmDataHandler and removed unused headers/methods. Fixed trivial
        Coverity warnings. For ions, compute effective charge pre-step and
        set this value to the model of energy loss fluctuations.</LI>
    <LI>G4VEnergyLossProcess, G4EmDataHandler: improved StorePhysicsTable(..)
        method and debug printouts.</LI>
    <LI>Code cleanup with clang-tidy: use default constructors; <TT>nullptr</TT>,
        <TT>auto</TT> and <TT>using</TT> keywords.</LI>
    </UL>
<LI><B>Xrays</B>
    <UL>
    <LI>G4VXTRenergyLoss: fixed bug in the angle range for fMaxThetaTR.</LI>
    <LI>Code cleanup with clang-tidy: use default constructors; <TT>nullptr</TT>
        and <TT>auto</TT> keywords.</LI>
    </UL></LI>
</UL>

<A NAME="errprop-notes">
<H3><I>Error Propagation</I></H3></A>
<UL>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="event-notes">
<H3><I>Event</I></H3></A>
<UL>
<LI>Added call to G4GlobalFastSimulationManager::Flush() method in the event
    loop.</LI>
<LI>Canonicalise implementations of custom new() and delete() operators that
    use G4Allocator.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="externals-notes">
<H3><I>Externals</I></H3></A>
<UL>
<LI>Rationalising externals builds to decouple them from the core
    module/category definitions.</LI>
<LI><U>CLHEP</U>:
    <UL>
    <LI>Updated to CLHEP version 2.4.6.2.</LI>
    <LI>Resolved gcc-12 warnings in Evaluator source.</LI>
    <LI>Fixed inconsistencies in Evaluator internal set of units.</LI>
    <LI>Add <TT>cstdint</TT> header where <TT>uint32_t</TT> and
        <TT>uint64_t</TT> are used.</LI>
    <LI>Applied patch for building on MinGW.
        Based on <A HREF="https://github.com/Geant4/geant4/pull/51">GitHub PR#51</A>.</LI>
    </UL></LI>
<LI><U>Expat</U>:
    <UL>
    <LI>Updated source and build scripts to expat-2.4.9 sources from upstream.</LI>
    </UL></LI>
<LI><U>G4tools</U>:
    <UL>
    <LI>Updated to version 6.1.0</LI>
    <LI>Fixed compilation warnings on Intel compiler and Coverity defects.
    <LI>Use thread-safe version of gl2ps-1.4.2.
        In gl2psPrintPostScriptPixmap(): pass greyscale, nbit in arguments
        to avoid a dead code issue; in gl2psPDFgroupListInit(), fixed issue
        for uninitialized pointer read; removed commented out code.</LI>
    <LI>sg/text: corrections in update_sg() due to copy-paste error.</LI>
    <LI>Moved g4tools code externals from <TT>tools</TT> to <TT>toolx</TT>
        module. Concerns code related to Qt, Windows, X11, Xt, OpenGL, hdf5,
        expat, mpi, zlib.</LI>
    <LI>In toolx/X11/base_session, check in show_window() that the window is
        not already mapped.</LI>
    <LI>Fixed compilation warnings on Intel compilers.</LI>
    <LI>Applied patch for building on MinGW.
        Based on <A HREF="https://github.com/Geant4/geant4/pull/51">GitHub PR#51</A>.</LI>
    </UL></LI>
<LI><U>PTL</U>:
    <UL>
    <LI>Updated PTL to version v2.3.3.</LI>
    <LI>New/improved support for initialization and finalization routines
        in ThreadPool.</LI>
    <LI>Threading: fix in GetNumberOfPhysicalCpus(), to never return zero.</LI>
    <LI>Fixed verbose message to cerr to be protected within verbosity level.</LI>
    <LI>Fixes for C++20 compilation warnings and updates to build scripts.</LI>
    <LI>Removed outdated TiMemory implementation.</LI>
    <LI>Make copy explicit in range loop.</LI>
    <LI>General code cleanup/tidy.</LI>
    <LI>Minor fixes for macOS/Clang and use as a subproject.</LI>
    <LI>Updated CMake install directory for PTL to match recent changes
        in default install directories in Geant4.</LI>
    <LI>Use any existing value of PTL_SANITIZER_TYPE to set the cache value
        to prevent override.</LI>
    <LI>Fixed compilation warnings for implicit type conversions on
        macOS/XCode 14.1.</LI>
    <LI>Coverity fixes.</LI>
    </UL></LI>
<LI><U>ZLIB</U>:
    <UL>
    <LI>Updated source to zlib-1.2.12 sources from upstream, retaining prior
        Geant4 patches.</LI>
    <LI>Suppressed deprecated-non-prototype warnings for compilers that check
        this.</LI>
    <LI>Applied patch for Zlib, to address Valgrind warnings.
        Based on
        <A HREF="https://github.com/Geant4/geant4/pull/43">GitHub PR#43</A>.</LI>
    </UL></LI>
</UL>

<A NAME="g3tog4-notes">
<H3><I>G3toG4</I></H3></A>
<UL>
<LI>Replaced sprintf with std::to_string to address macOS 13 deprecation
    warnings.</LI>
<LI>Fixed compilation warnings on Intel/icc compiler for deprecated conversion
    of string literal to char* in G3EleTable.</LI>
<LI>Fixed compilation warning on Intel/icx compiler for variable set
    but not used in clparse source code.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="gen-notes">
<H3><I>General Processes</I></H3></A>
<UL>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI><B>Biasing</B>
    <UL>
    <LI>Fixed defects reported by Coverity in G4BOptnLeadingParticle, to use
        <TT>auto&</TT>.</LI>
    <LI>Fixed compilation warning on Intel/icx compiler for variable set but not
        used in G4GeometrySampler.</LI>
    </UL></LI>
<LI><B>Cuts</B>
    <UL>
    <LI>G4ProductionCuts: removed unnecessary thread-local variables; code clean-up
        and simplified.</LI>
    </UL></LI>
<LI><B>Management</B>
    <UL>
    <LI>G4VDiscreteProcess: added virtual method GetCrossSection()
        needed for integral approach both in hadronics and EM modules.
        Added virtual method MinPrimaryEnergy(..).</LI>
    <LI>G4VRestDiscreteProcess, G4VRestProcess, G4VRestContinuesDiscreteProcess:
        added protection against arithmetic operations with DBL_MAX.
        Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2452">#2452</A>.</LI>
    <LI>G4VProcess: introduced new virtual method GetCreatorProcess().</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variable set
        but not used in G4ProcessTableMessenger.</LI>
    </UL></LI>
<LI><B>Optical</B>
    <UL>
    <LI>G4OpBoundaryProcess: calculating reflection/refraction from thin film
        coating.<BR>
        Issuing warning when step size is slightly larger than geometry
        tolerance, in which case boundary scattering may be incorrect.
        Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2510">#2510</A>.</LI>
    <LI>Code cleanup with clang-tidy: use default constructors; auto keyword;
        remove <TT>void</TT> function argument; don't check for <TT>nullptr</TT>
        before delete; use operator==() for string comparisons.
        Prefer pointer to <TT>const G4Material</TT> where possible.</LI>
    </UL></LI>
<LI><B>Parameterisation</B>
    <UL>
    <LI>Added flush() method to the fast simulation model. This method allows to
        process the input buffer of the fast simulation model before the end of an
        event. It is used when particles are grouped together before the
        processing. The 'flush' is triggered inside the event loop of
        G4EventManager, when the stack is empty. The fast simulation model may
        add secondaries to the stack, which will then be processed by Geant4.</LI>
    <LI>G4FastStep: code clean-up; delete copy constructor and operator=().</LI>
    <LI>G4FastSimHitMaker: making it compatible to command-based scorer.</LI>
    </UL></LI>
<LI><B>Solid State</B>
    <UL>
    <LI>In G4LatticeReader, replaced <TT>getenv()</TT> calls for data variables
        with G4FindDataDir()</LI>
    </UL></LI>
<LI><B>Transportation</B>
    <UL>
    <LI>Revised implementation of G4CoupledTransportation: now inheriting from
        G4Transportation and removed duplicated variables and methods; use new
        constant <TT>kMassNavigatorId</TT> from G4TransportationManager.</LI>
    <LI>New class G4TransportationParameters to hold looper parameters & others.
        This class has to be created in master to hold the values of all looper 
        parameters for G4Transportation and derived classes.</LI>
    <LI>G4CoupledTransportation: set flags from G4Transportation: replaced
        <TT>fFirstStepInAnyVolume</TT> with <TT>fFirstStepInVolume</TT>; replaced
        <TT>fAnyGeometryLimitedStep</TT> with <TT>fGeometryLimitedStep</TT>;
        removed wrong check in case of zero steps.</LI>
    <LI>G4Transportation: removed problem check in case of zero steps; set step
        status on volume boundary. Removed non-working check for any field.</LI>
    <LI>Moved G4UserSpecialCuts to <TT>physics_lists/constructors/limiters</TT>
        module.
    <LI>Removed useless <TT>const_cast</TT> of G4VSensitiveDetector.</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variables set
        but not used.</LI>
    </UL></LI>
</UL>

<A NAME="geo-notes">
<H3><I>Geometry</I></H3></A>
<UL>
<LI>Fixed compilation warnings on Intel-icx compiler for variables set
    but not used.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI><B>Magnetic Field</B>
    <UL>
    <LI>Revised G4FieldManager to ensure that epsilon_min/_max parameters are
        less than a 'maximum accepted' accuracy (now=0.02) to ensure robust
        behaviour of the integration. Improved their set methods, adding warnings
        with corrective behaviour, and a fatal exception in case of values
        outside the accepted range. To cope with needs of legacy applications
        or existing needs for performance, the value of the 'ceiling' maximum
        accepted accuracy can be modified using the new static method 
        G4FieldManager::SetMaxAcceptedEpsilon(maxAccept, softFail)
        but must remain under or equal to a final ceiling currently of
        <TT>fMaxFinalEpsilon=0.02</TT>.</LI>
    <LI>Introduced G4BorisScheme and G4BorisDriver, that implement the Boris
        integration scheme for motion in an electromagnetic field. It is 
        a 2<SUP>nd</SUP> order symplectic integration method, created as part
        of GSoC 2022.</LI>
    </UL></LI>
<LI><B>Management</B>
    <UL>
    <LI>Get rid of heap allocations in G4BoundingEnvelope.</LI>
    <LI>G4ReflectedSolid: added GetCubicVolume(), GetSurfaceArea().</LI>
    <LI>Added headers for directly used classes from
        <TT>global/HEPGeometry</TT>.</LI>
    </UL></LI>
<LI><B>Navigation</B>
    <UL>
    <LI>The <TT>/geometry/run/test</TT> UI command can now check for overlaps in
        parallel worlds if <TT>/geometry/run/check_parallel</TT> is set to
        <TT>true</TT>.</LI>
    <LI>Improved diagnostic message in G4MultiLevelLocator, now printing the
        stored information on trial integration steps in one error case.
        Refresh candidate intersection point when needed.</LI>
    <LI>G4Navigator: minor code improvements in ComputeSafety(), ComputeStep(),
        and LocateGlobalPointAndSetup().</LI>
    <LI>Added constant <TT>kMassNavigatorId</TT> in G4TransportationManager and
        make use of it in G4SafetyHelper.</LI>
    </UL></LI>
<LI><B>Solids (Boolean)</B>
    <UL>
    <LI>G4DisplacedSolid: added GetCubicVolume(), GetSurfaceArea().</LI>
    <LI>G4SubtractionSolid: fixed problem of non-zero volume for null resulting
        objects in GetCubicVolume().</LI>
    </UL></LI>
<LI><B>Solids (CSG)</B>
    <UL>
    <LI>G4Cons: define private enums within unnamed namespace, to overcome
        C++ ODR (One Definition Rule) violation.</LI>
    </UL></LI>
<LI><B>Solids (Specific)</B>
    <UL>
    <LI>G4GenericTrap: implemented calculation of volume using analytical
        expression in GetCubicVolume(); in GetSurfaceArea(), improved
        calculation of the area of lateral faces; removed private function
        GetFaceCubicVolume(); private functions GetFaceSurfaceArea(),
        GetTwistedFaceSurfaceArea() replaced with private function
        GetLateralFaceArea().</LI>
    <LI>G4Ellipsoid: in LateralSurfaceArea(), enhanced calculation of the
        lateral surface area.</LI>
    <LI>G4VTwistedFaceted, G4TwistedBox, G4TwistedTrd: optimised calculation
        of volume and surface area.</LI>
    <LI>G4VTwistedFaceted: fCubicVolume, fSurfaceArea made protected;
        GetCubicVolume() and GetSurfaceArea() no longer inlined and moved to
        source.</LI>
    <LI>G4TwistedTubs: implemented GetSurfaceArea() based on analytical
        expressions; added private functions GetLateralArea(),
        GetPhiCutArea().</LI>
    <LI>G4Hype: use analytical expression in GetCubicVolume() and
        GetSurfaceArea().</LI>
    <LI>G4VTwistedFaceted: use numerical evaluation of a single integral to
        calculate lateral face surface area.</LI>
    <LI>G4ExtrudedSolid, G4UExtrudedSolid: added default values for parameters
        in the constructor with two z-sections. Added default constructor to
        ZSection.</LI>
    </UL></LI>
</UL>

<A NAME="glob-notes">
<H3><I>Global</I></H3></A>
<UL>
<LI>Define G4lrint as <TT>std::lrint</TT>; removed unused G4lint and G4rint.</LI>
<LI>Imported from <TT>tasking</TT> module all core interfaces that only depend on
    PTL.</LI>
<LI>Corrected G4ErrorPropagatorData destructor.</LI>
<LI>Additional clang-tidy fixes for header-only code.</LI>
<LI>Moved implementation details of G4Exception to source file.
    Removed obsolete re-declaration of G4Exception in G4Timer.</LI>
<LI>G4FindDataDir: correction for windows runtime, G4MULTITHREADED flag.
    Use the environment variable GEANT4_DATA_DIR as top data dir.</LI>
<LI>Applied patch for building on MinGW.
    Based on <A HREF="https://github.com/Geant4/geant4/pull/51">GitHub PR#51</A>.</LI>
<LI>Fixed compilation warning on Intel-icx compiler for variable set but not
    used in G4AnalyticalPolSolver::QuarticRoots().</LI>
<LI>Make dataset environment variables optional in CMake builds.</LI>
<LI>Removed obsolete CMakeLists.txt script in <TT>management</TT> module.
    Declare <TT>HEPGeometry</TT> dependencies as INTERFACE as the module is
    header-only. Removed dependency on TBB which is not a direct dependency
    of the global category.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI>Updated date of release for 11.1.</LI>
</UL>

<A NAME="greps-notes">
<H3><I>Graphical Representations</I></H3></A>
<UL>
<LI>HepPolyhedron, G4Polyhedron: added new constructors taking vertices and
    faces; added derived classes HepPolyhedronTetMesh, G4PolyhedronTetMesh;
    added SetVertex(), SetFacet() functions and made SetReferences() and
    InvertFacets() public methods. Implemented JoinCoplanarFacets() function,
    move constructor and move assignment operator.</LI>
<LI>Implemented faster version of HepPolyhedronTetMesh.</LI>
<LI>Revised HepPolyhedronEllipsoid, fixed visibility of edges in case of cut
    ellipsoid.</LI>
<LI>G4Visible: added "user" data member <TT>fInfo</TT> from G4VMarker, with
    access and operator<<() functions, intended to offer the user/developer
    a way of communicating information.</LI>
<LI>G4VVisManager: added new virtual function DrawGeometry(), drawing a geometry
    tree starting at the specified physical volume; this base class implementation
    is empty, i.e., the derived class implementation is not forced.</LI>
<LI>Fixed compilation warning on Intel/icx compiler for variable set
    but not used in HepPolyhedron::FindNodeNormal().
    Fixed minor Coverity defect in operator<<().</LI>
<LI>G4VisExtent: in Transform(), use <TT>const auto&</TT> to avoid copying.</LI>
<LI>G4VisAttributes: fixed formatting in operator<<().</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI>Applied clang-tidy fixes to the code.</LI>
</UL>

<A NAME="had-notes">
<H3><I>Hadronic Processes</I></H3></A>
<UL>
<LI>Replaced <TT>getenv()</TT> calls for data variables with G4FindDataDir() in data
    readers.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI>Updated dependencies in CMake script to address warnings from
    consistency check.</LI>
<LI><B>Cross Sections</B>
    <UL>
    <LI>G4CrossSectionDataStore, G4NeutronElasticXS, G4NeutronInelasticXS:
        added interfaces needed for G4NeutronGeneralProcess.
        Implemented new interfaces in G4NeutronCaptureXS.</LI>
    <LI>G4TauNeutrinoNucleusTotXsc: new cross-section for tau-neutrinos, based on
        energy scaled cross-section of muon-neutrinos..</LI>
    <LI>G4NeutronElasticXS, G4NeutronInelasticXS, G4NeutronCaptureXS: code cleanup;
        use G4AutoLock.</LI>
    <LI>G4ParticleInelasticXS: code cleanup; use G4AutoLock.
        Fixed cross-section calculation. Addressing problem report
        <A HREF="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2498">#2498</A>.</LI>
    <LI>G4VCrossSectionDataSet: added extra interfaces with G4ParticleDefinition
        and kinetic energy.</LI>
    <LI>G4ComponentAntiNuclNuclearXS: fix and extension in methods
        GetTotalElementCrossSection() and GetInelasticElementCrossSection();
        a bug was causing undefined values for, respectively, the total and
        inelastic cross-sections of anti-proton interactions with light target
        nuclei (d, H3, He3 and He4); extended to simulation of a light
        anti-hypernucleus projectile scattering on a target nucleus.
        Fixed Coverity warning, added checks against nullptr pointers.</LI>
    <LI>G4ComponentGGNuclNuclXsc, G4ComponentGGHadronNuclXsc: extension to
        light hyper-nuclei on hydrogen.</LI>
    <LI>G4CrossSectionDataStore, G4VCrossSectionDataSet: removed unused methods.</LI>
    </UL></LI>
<LI><B>Management</B>
    <UL>
    <LI>G4HadronicProcess: implemented integral method.
        Make access to target nucleus public needed for neutron general process.</LI>
    <LI>G4HadXSTypes, G4HadXSHelper: new helper classes.</LI>
    <LI>G4HadronicProcessType: added <TT>fNeutronGeneral</TT>.</LI>
    <LI>G4HadronicProcessStore: extended Dump() method for hyper-triton and 
        anti_hyper-triton.</LI>
    </UL></LI>
<LI><B>Processes</B>
    <UL>
    <LI>G4NeutronGeneralProcess: new combined process; make it work with QBBC
        physics-list.</LI>
    <LI>G4TauNeutrinoNucleusProcess: new process for tau-neutrino hadronic
        inelastic physics.</LI>
    <LI>G4HadronElasticProcess: extended debug printout.</LI>
    <LI>G4NeutronCaptureProcess: avoid double instantiation of the cross-section.</LI>
    <LI>Prefer pointer to <TT>const G4Material</TT> where possible.</LI>
    </UL></LI>
<LI><B>Utilities</B>
    <UL>
    <LI>G4Fragment: added <TT>IsLongLived</TT> flag and Get/Set methods needed
        for the de-excitation module; clean-up inline methods.
        Fixed computation of binding energy for hypernuclei; added
        a new private method to recompute ground state mass, excitation energy
        and to check consistency of input; left inlined only simple methods;
        added new methods SetZAandMomentum(..) and RecomputeGroundStateMass();
        improved comments and warning messages.</LI>
    <LI>G4Nucleus: corrected method GetN_asInt() for the case of hypernuclei.</LI>
    <LI>G4HadronicParameters: added flags for switching on/off the integral 
        approach for hadron elastic and, independently, inelastic processes; 
        by default, it is enabled for inelastic. 
        Added flag to enable general neutron process.
        Moved G4Threading header to source.</LI>
    <LI>Added option to G4HadronicParameters to control the diffraction 
        dissociation for nucleon projectile on target nucleus with baryon
        number greater than 10: by default, both projectile and target
        diffraction are switched off (but they are both active in the case
        of target nucleus with baryon number below or equal to 10; if instead
        the flag is set to <TT>true</TT>, then both projectile and target
        diffraction are activated regardless of the target nucleus).</LI>
    <LI>G4KineticTrack, G4HadSecondary, G4ReactionProduct, G4DecayKineticTracks,
        G4DecayStrongResonances: propagate the information on parent resonance.</LI>
    <LI>G4HadDataHandler: new data class.</LI>
    <LI>G4NuclearPolarization: fixed Coverity warning.</LI>
    </UL></LI>
<LI><B>Abla</B>
    <UL>
    <LI>Fixed compilation warnings on Intel/icx compiler for variables set
        but not used in G4AblaDataDefs header.</LI>
    </UL></LI>
<LI><B>Bertini Cascade</B>
    <UL>
    <LI>G4NumIntTwoBodyAngDst: corrected incomplete initialization of a vector.
        Addressing problem report
        <A HREF="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2515">#2515</A>.</LI>
    <LI>G4TwoBodyAngularDist: corrected the charge exchange reaction of pion+ on
        neutron producing in the final state pion0 and proton.
        Addressing problem report
        <A HREF="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2516">#2516</A>.</LI>
    <LI>Fixed wrong comparison between two arrays in findCrossSection(..) for
        G4CascadePPChannel, G4CascadeNPChanneland G4CascadeNNChannel.</LI>
    <LI>Fixed compilation warning on gcc-12.</LI>
    </UL></LI>
<LI><B>Binary Cascade</B>
    <UL>
    <LI>G4GeneratorPrecompoundInterface, G4BinaryCascade: propagate the
        information on parent resonance (in the ApplyYourself() method, from
        G4ReactionProduct to G4HadSecondary; in other methods, from
        G4KineticTrack to G4ReactionProduct).</LI>
    <LI>G4GeneratorPrecompoundInterface: in PropagateNuclNucl() method, in the
        case of anti-nucleus projectile, convert also lambdas into anti-lambdas
        after the de-excitation (which assumes a projectile nucleus).</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variables set
        but not used in G4BinaryCascade.</LI>
    </UL></LI>
<LI><B>De-excitation</B>
    <UL>
    <LI>G4Evaporation, G4UnstableFragmentBreakUp: completed fix about production 
        of unphysical fragments; improved debug printout. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2355">#2355</A>.</LI>
    <LI>G4EvaporationChannel, G4Evaporation: added limitation (<TT>A < 30</TT>)
        on decay of unphysical fragments, allowing for removal of light unphysical
        states and providing improved isotope production for the spallation
        fragments.</LI>
    <LI>G4EvaporationChannel, G4EvaporationProbability, G4VEmissionProbability,
        G4VCoulombBarrier, G4CoulombBarrier: use new method from G4Fragment.</LI>
    <LI>G4VEvaporationChannel, G4EvaporationChannel, G4VEmissionProbability
        and G4EvaporationProbability: improved inverse cross-section
        parameterisation at threshold.</LI>
    <LI>G4PhotonEvaporation: fixed situation when excited fragments are created
        with excitation energy not corresponding to level energies from
        G4LEVELGAMMADATA. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2434">#2434</A>.
        Also fixing event non-reproducibility for the case when radioactive
        decay is enabled on top of any physics list.
        Simplified handling of floating levels. For floating levels check if
        levels with the same energy can be used for sampling transitions;
        improved use of mutex; code clean-up.</LI>
    <LI>G4EvaporationProbability: reduced usage of cache.</LI>
    <LI>G4ExcitationHandler: use IsLongLived() flag from G4Fragment to decide
        if the de-excitation of the fragment should be stopped.<BR>
        Introduced de-excitation of fragments with lambda inside. Added
        protections that prevents potential crashes and large energy
        non-conservations in  case of hypernuclei and anti-hypernuclei
        projectiles. Added extra sanity check for negative value of lambda
        inside a fragment.
        Note: there are still a few warnings of rejected candidate final-states
        with off-shell masses and few GeV energy non-conservations (implying a
        resampling of the final-state) in the case of light hypernuclei and
        anti-hypernuclei projectiles, that need further investigation.</LI>
    <LI>G4AtomicTransition: extended upper limit of atomic de-excitation 
        from <TT>Z=100</TT> to <TT>Z=104</TT>.</LI>
    <LI>G4FermiCoulombBarrier: new class for Coulomb barrier according to
        prescription. Updated G4FermiDecayProbability and G4FermiFragment
        accordingly.</LI>
    <LI>G4VEmissionProbability: limit number of bins for numerical integration
        to 50.</LI>
    <LI>G4VEmissionProbability: updated sampling of the emitted fragment energy
        needed. Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2443">#2443</A>.
        Fixed sampling of the tail of distributions; added numerical protections.
        Stronger limit on accuracy of integrated probability; improved debug
        printout.</LI>
    <LI>G4CoulombBarrier: tuned parameters.</LI>
    <LI>G4LevelManger, G4NuclLevel: removed verbose printouts; code clean-up.</LI>
    <LI>G4NuclearLevelData: use G4AutoLock.</LI>
    <LI>Use G4BestUnit in G4DeexPrecoParameters::StreamInfo().</LI>
    <LI>G4StatMFChannel: fixes in the solver of the equation of motion of the
        multi-fragmentation model.<</LI>
    <LI>Code cleanup.</LI>
    </UL></LI>
<LI><B>Elastic scattering</B>
    <UL>
    <LI>G4AntiNuclElastic: extension of the SampleInvariantT() method for the
        simulation of a light anti-hypernucleus projectile elastic scattering
        on a target nucleus.
        Note: most of the considered light anti-hypernuclei projectiles have 
        baryon number equal to -4 : it is assumed that their properties are similar
        to anti-He4, therefore their elastic scattering is set-up as for anti-He4
        elastic nuclear scattering. These properties can be improved in the future
        if theoretical estimations will be available.</LI>
    </UL></LI>
<LI><B>Electromagnetic Dissociation</B>
    <UL>
    <LI>G4EMDissociation: updated according to G4Fragment modifications.</LI>
    </UL></LI>
<LI><B>Fission</B>
    <UL>
    <LI>G4FissLib, G4LFission: use consistent thresholds for relative (10% instead
        of 5%) and absolute (350 GeV instead of 250 GeV) energy non-conservation
        check.</LI>
    </UL></LI>
<LI><B>INCLXX</B>
    <UL>
    <LI>G4INCLXXInterface: introduced a protection against unphysical nuclear
        remnants (i.e. unbound systems) and, if this is the case, resample the
        collision.</LI>
    <LI>G4INCLParticle, G4INCLEventInfo, G4INCLNucleus, G4INCLDeltaDecayChannel,
        G4INCLXXInterface: set and propagate the information on parent resonance.</LI>
    <LI>G4INCLPiNElasticChannel: erase the information on parent resonance in
        the case of charge exchange.</LI>
    <LI>G4INCLPiNToDeltaChannel, G4INCLPiNToOmegaChannel, G4INCLPiNToEtaChannel,
        G4INCLPiNToMultiPionsChannel, G4INCLNpiToLKpiChannel,
        G4INCLNpiToLK2piChannel, G4INCLNpiToNKKbChannel, G4INCLNpiToSK2piChannel,  
        G4INCLNpiToSKpiChannel, G4INCLNpiToSKChannel, G4INCLNpiToLKChannel,
        G4INCLNpiToMissingStrangenessChannel: erase the information on parent
        resonance in inelastic channels (where the nucleon and pion initial-state
        objects are re-used for the final state).</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variables set
        but not used.</LI>
    </UL></LI>
<LI><B>Lend</B>
    <UL>
    <LI>Fixed potential use of pointer after free in nf_utilities/nfu_realloc(..)
        function.</LI>
    <LI>Applied patch for building on MinGW.
        Based on <A HREF="https://github.com/Geant4/geant4/pull/51">GitHub PR#51</A>.</LI>
    <LI>Replaced use of sprintf() with snprintf(), to fix deprecation compilation
        warnings on macOS-13 SDK.</LI>
    </UL></LI>
<LI><B>Lepto-nuclear</B>
    <UL>
    <LI>G4(A)NuTauMucleusNc(Cc)Models: new final-state models for tau and
        anti-tau neutral and charged current neutrino-nucleus interactions.</LI>
    <LI>G4ElectroVDNuclearModel: added protections against null pointers to gamma
        cross-section and material, responsible for rare crashes.</LI>
    </UL></LI>
<LI><B>Particle High Precision</B>
    <UL>
    <LI>Removed environment variables G4PHPTEST, G4PHPTEST2 and NeutronHPCapture,
        associated getenv() calls and associated debug code, as no longer used and
        found to slow down the code significantly.
        Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2501">#2501</A>.</LI>
    <LI>G4ParticleHPContAngularPar: added protection against zero probability
        for both discrete and continuous emission.</LI>
    <LI>G4ParticleHPThermalScatteringNames: updated to use new ThermalScattering
        data in G4NDL-4.7.</LI>
    <LI>Fixed compilation warnings on Intel/icx compiler for variable set
        but not used in G4ParticleHPInelasticCompFS and G4ParticleHPFFFissionFS.</LI>
    <LI>Use <TT>auto</TT> for iterators in
        G4ParticleHPFFFissionFS::GetAFissionFragment().</LI>
    <LI>Fixed Coverity reports.</LI>
    </UL></LI>
<LI><B>Parton-String</B>
    <UL>
    <LI>G4FTFModel: implemented extension of the model to deal with the
        annihilation of light anti-hypernuclei.
        In methods AdjustNucleonsAlgorithm_beforeSampling() and
        ComputeNucleusProperties(), check if the residual is a single nucleon
        (or lambda) or a pair of nucleons (or lambdas); also use the absolute
        value of the nuclear residual charge to take into account the case of
        anti-nuclei projectiles.</LI>
    <LI>G4FTFAnnihilation: reorganization of Create2QuarkAntiQuarkStrings() and
        Create3QuarkAntiQuarkStrings() methods, in order to better handle
        unphysical configurations that need to be rejected.
        The algorithm has been also optimised by changing the order of the
        sampling: light-cone variables are sampled first, then transverse momenta.
        The positions of quark and anti-quark in strings have been corrected: this
        is expected to improve the kinematical properties of the produced
        hadrons.</LI>
    <LI>G4FTFTunings: new singleton class to allow the possibility to specify
        alternative sets of FTF parameters, called "tunes".
        Moved into this class some special, internal classes, useful for tuning
        of parameters, that were originally in G4FTFParameters.</LI>
    <LI>G4FTFTuningsMessenger: new messenger class for G4FTFTunings.</LI>
    <LI>Allow control of diffraction for baryon number greater than 10 in
        G4FPFParameters. The option comes from G4HadronicParameters and the
        default behaviour remains the same (i.e. off).
        Use of the new G4FTFTunings class; instead of having one, single set of
        parameters, it has now an array of set of parameters, with each element
        corresponding to one specific "tune".
        Clean-up of the class by moving to G4FTFTunings some code.</LI>
    <LI>G4HadronBuilder: added a new argument in constructor, and a new data
        member to the class. This is needed to set a special mixing of
        pseudo-scalar and vector mesons for s-sbar mesons. Introduced to
        describe phi-meson production in proton-proton interactions measured
        by NA61/SHINE.</LI>
    <LI>G4VLongitudinalStringDecay: tuned the probability of pseudo-scalar meson
        production, to describe K*0 meson production in proton-proton
        interactions according to NA61/SHINE data. Introduced also a new
        parameter (probability of pseudo-scalar meson production in s-sbar
        mesons) to increase the phi-meson yield in proton-proton interactions.
        Fixed a bug in mixing eta_prime and phi mesons in the quark systems
        d-dbar, u-ubar and s-sbar.
        Brought back the value (0.5) of the mixing between (rho0 and omega)
        vector mesons as it was originally before version 10.0. This should
        describe better NA61/SHINE experimental data. The change has some effect
        on the hadronic showers, giving that the various vector mesons have
        different decay rates into neutral pions.</LI>
    <LI>G4VPartonStringModel: added debugging information on the number of
        lambdas for residual projectile hypernuclei.</LI>
    <LI>G4HadronBuilder, G4VLongitudinalStringDecay, G4LundStringFragmentation,
        G4QGSMFragmentation, G4ExcitedStringDecay: in order to describe the
        NA61/SHINE data on K*0 and phi mesons production in proton-proton
        interactions, different probabilities were introduced for the ratios
        between pseudo-scalar and vector meson production. These ratios are the
        following: for ordinary mesons from u- and d- quarks, the ratio is 0.5/0.5;
        for strange mesons the ratio is 0.4/0.6; for mesons with hidden strangeness
        (as for phi), the ratio is 0.3/0.7.
        This approach is similar to the one adopted in Pythia8.
        It is also assumed that the probabilities for hidden strangeness (0.3/0.7)
        apply for mesons with hidden charm and beauty.</LI>
    <LI>G4LundStringFragmentation: introduced few changes for a special
        treatment of the last string decay in the case of <TT>ss-q</TT> or
        <TT>ss-qq, ss-sbar sbar</TT> last string decay. This improves the
        yield of <TT>anti-Xi</TT> hyperons in proton-proton interactions
        according to the NA61/SHINE data.<BR>
        Moreover, some parameters have been tuned to better describe the
        NA61/SHINE data on various particles produced in proton-proton
        interactions.</LI>
    <LI>G4DiffractiveExcitation: improved ExciteParticipants_doChargeExchange()
        method: for a projectile meson in the case of quark exchange, a more
        correct ratio between pseudo-scalar and vector mesons is included; the
        pion after the exchange can transform into <TT>pi0, eta, eta', rho0</TT>
        and omega mesons. This allows to improve the description of leading
        particle spectra in meson-nucleon interactions.</LI>
    <LI>G4DiffractiveSplitableHadron: fixed rare warnings about large energy
        non-conservations (which are rejected and require resampling) seen
        with FTF when dealing with charm and bottom hadron inelastic nuclear
        interactions.</LI>
    <LI>Fixed compilation warning on Intel/icx compiler for variables set
        but not used in G4QGSMSplitableHadron and G4QGSParticipants.</LI>
    </UL></LI>
<LI><B>Pre-equilibrium</B>
    <UL>
    <LI>G4PreCompoundModel: in the case of hypernuclei do not perform pre-compound
        emission but only equilibrium emission.</LI>
    </UL></LI>
<LI><B>QMD</B>
    <UL>
    <LI>Fixed compilation warning on Intel/icx compiler for variable set
        but not used in G4QMDMeanField.</LI>
    </UL></LI>
<LI><B>Radioactive Decay</B>
    <UL>
    <LI>G4ECDecay: added protection against negative neutrino energy.
        Addressing problem report
        <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2509">#2509</A>.<BR>
        Removed negative neutrino energy warning but keep protection
        against negative values. Negative values are due to negative Q values
        from ENSDF for only four nuclides.</LI>
    <LI>G4ECDecay, G4ITDecay: extended upper limit of atomic de-excitation 
        from <TT>Z=100</TT> to <TT>Z=104</TT>.</LI>
    <LI>G4RadioactiveDecay: removed SetICM() method, as deprecated for some time
        and no longer used. ICM now set exclusively in G4PhotonEvaporation.
        Added printout of the flag of atomic relaxation.</LI>
    <LI>G4RadioactiveDecayMessenger: removed icmCmd corresponding to SetICM()
        above.</LI>
    <LI>Cosmetic changes in G4RadioactiveDecay::StreamInfo().</LI>
    </UL></LI>
<LI><B>Theo_High_Energy</B>
    <UL>
    <LI>G4TheoFSGenerator: propagate the information on parent resonance (in
        the ApplyYourself() method, from G4ReactionProduct to G4HadSecondary).<BR>
        Simplified treatment for low-energy inelastic nuclear reactions of
        light hypernuclei (needed because Bertini and Binary intra-nuclear 
        cascade models are not applicable for these projectiles).
        Note that for light anti-hypernuclei, FTF works fine down to zero 
        kinetic energy.</LI>
    </UL></LI>
</UL>

<A NAME="interc-notes">
<H3><I>Intercoms</I></H3></A>
<UL>
<LI>Applied set of clang-tidy modernize, readability and performance fixes.</LI>
<LI>Always expand path argument to ExecuteMacroFile() using FindMacroPath().
    Based on <A HREF="https://github.com/Geant4/geant4/pull/40">GitHub PR#40</A>.
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="interf-notes">
<H3><I>Interfaces</I></H3></A>
<UL>
<LI>G4InteractorMessenger: prevent propagation of <TT>/gui/*</TT> commands
    to workers.</LI>
<LI>Applied patch for building on MinGW.
    Based on <A HREF="https://github.com/Geant4/geant4/pull/51">GitHub PR#51</A>.</LI>
<LI>Fixed compilation warning on Intel compiler for shadowing data.</LI>
<LI>Use geant4_module_sources to add optional sources in CMake script.
    Added required G4VIS_USE_VTK_QT flag here instead of <TT>Vtk</TT>
    visualization module. Added dependency on Qt5 Widgets to <TT>common</TT>
    sub-module CMake script.</LI>
<LI>Fixed compilation warnings on Intel/icc for deprecated conversion of string
    literal to char* in G4UIXm.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="materials-notes">
<H3><I>Materials</I></H3></A>
<UL>
<LI>G4Material: added an extra check on number of atoms in method
    AddElementByNumberOfAtoms(..). Addressing problem report
    <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2514">#2514</A>.</LI>
<LI>G4MaterialPropertyVector, G4OpticalMaterialProperties: organise material
    property vectors in increasing order of energy. Modified from
    <A href="https://github.com/Geant4/geant4/pull/42">GitHub PR#42</A>.</LI>
<LI>G4MaterialPropertiesIndex, G4MaterialPropertiesTable, G4SurfaceProperty:
    added parameters to specify optical photon transport through thin film
    coating.</LI>
<LI>G4AtomicShell: added extra data for <TT>Z=101-104</TT>.</LI>
<LI>G4AtomicShell, G4AtomicShell_XDB_EADL: changed format of internal tables
    allowing to see differences in a clearer way.</LI>
<LI>Corrected G4UCNMicroRoughnessHelper destructor.</LI>
<LI>G4NistMaterialBuilder: fixed bio-medical material descriptions for
    G4_ADENINE, G4_GUANINE, G4_CYTOSINE, G4_THYMINE, G4_DEOXYRIBOSE, and
    added G4_PHOSPHORIC_ACID.</LI>
<LI>Applied set of clang-tidy modernize, readability and performance fixes.</LI>
<LI>G4NistManager, G4NistMaterialBuilder, G4NistElementBuilder: use G4AutoLock
    for code simplification.</LI>
<LI>Replaced <TT>getenv()</TT> calls for data variables with G4FindDataDir() in
    G4IonStoppingData, G4MicroElecMaterialStructure and G4OpticalSurface.</LI>
<LI>G4CrystalExtension: fixed Coverity warning and minor clean-up.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="parameterisations-notes">
<H3><I>Parameterisations</I></H3></A>
<UL>
<LI>GFLASH:
    <UL>
    <LI>Fixed compilation warning on Intel/icx compiler for variable set
        but not used in GFlashShowerModel::ElectronDoIt().</LI>
    <LI>Fixed compilation warnings for implicit type conversions on
        macOS/XCode 14.1.</LI>
    </UL></LI>
</UL>

<A NAME="part-notes">
<H3><I>Particles</I></H3></A>
<UL>
<LI>Changed halflife threshold for nuclide creation to be consistent with 
    lifetimes in nuclear de-excitation code. In G4NuclideTable, changed
    <TT>threshold_of_halflife</TT> from <TT>1000 ns</TT> to <TT>1 ns</TT>.</LI>
<LI>In G4NuclieTable, replaced <TT>getenv()</TT> calls for data variables with
    G4FindDataDir().</LI>
<LI>G4NuclideTableMessenger: added command
    <TT>/particle/manage/nuclide/min_meanlife</TT> corresponding to 
    G4NuclideTable::SetMeanLifeThreshold().
    Default minimum mean life is <TT>1.0 ns</TT>.
    In <TT>/particle/nuclideTable/min_halflife</TT> changed default minimum
    half-life to <TT>0.693 ns</TT>.</LI>
<LI>Changed half-life threshold for nuclide creation to be consistent with 
    lifetimes in nuclear de-excitation code; in G4NuclideTable constructor,
    change <TT>threshold_of_halflife</TT> from <TT>1000 ns</TT> to
    <TT>1 ns</TT>.</LI>
<LI>Use nuclide mean-life instead of half-life in G4NuclideTable in order
    to be consistent with ENSDFSTATE data, which uses mean-life. Provided
    two new methods, SetMeanLifeThreshold() and GetMeanLifeThreshold() so
    that the life-times can be accessed as either half-life or mean-life.</LI>
<LI>G4Triton, G4AntiTriton: corrected the lifetime value for triton and
    anti_triton: the half-life (12.32 years) was incorrectly used instead of
    the mean lifetime (17.774 years) for triton, whereas the anti_triton was
    incorrectly treated as stable.</LI>
<LI>Removed obsolete and unused G4DynamicParticleFastVector type alias.</LI>
<LI>G4HyperNucleiProperties: optimization improvement and minor clean-up.</LI>
<LI>Replaced <TT>reinterpret_cast</TT> with <TT>static_cast</TT> where
    possible.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI>Fixed compilation warning on Intel/icx compiler for variable set
    but never used in G4MuonRadiativeDecayChannelWithSpin.</LI>
<LI>Minor code formatting.</LI>
</UL>

<A NAME="pers-notes">
<H3><I>Persistency</I></H3></A>
<UL>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI>mctruth: added headers for directly used classes from
    <TT>global/HEPGeometry</TT>.</LI>
</UL>

<A NAME="lst-notes">
<H3><I>Physics lists</I></H3></A>
<UL>
<LI>Updated public/private dependencies for consistency in CMake script
    and added missing dependency</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
<LI><B>Constructors</B>:
    <UL>
    <LI>Replaced <TT>getenv()</TT> calls for data variables with G4FindDataDir()
        in data readers.</LI>
    <LI><U>decay</U>
        <UL>
        <LI>G4DecayPhysics: added instantiation of singletons for physics.</LI>
        <LI>Added calls to G4EmBuilder and G4PhysListUtil in order to prevent from
            warnings on decays of light hypernuclei, in the case of simplified 
            custom Physics Lists.</LI>
        </UL></LI>
    <LI><U>electromagnetic</U>:
        <UL>
        <LI>G4EmModelActivator: fixed mechanism to define PAI model per region.</LI>
        <LI>In G4EmStandardPhysics_option3, G4EmStandardPhysics_option4,
            G4EmPenelopePhysics, G4EmStandardPhysicsSS, and G4EmLivermorePhysics
            use G4LinhardSorensenIonModel for GenericIon.</LI>
        <LI>Adding possibility to enable new G4TransportationWithMsc for
            multiple-scattering. Enabled by default in G4EmStandardPhysics_option1.</LI>
        <LI>G4EmBuilder: enable internal stepping in G4TransportationWithMsc
            if requested.<BR>
            Added G4Lamda, G4AntiLambda and G4PionZero to the minimal EM
            particle list to avoid warnings issued due to new hypernuclei.
            Added e- and mu- neutrino and anti-neutrino.<BR>
            Added minimal list of EM standard particles to all DNA
            physics variants, to allow enabling of radioactive decay; provides
            correct printout of EM processes and models. Addressing problem report
            <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2412">#2412</A>.</LI>
        <LI>G4EmBuilder, G4EmDNAPhysics: instantiate singletons for physics.</LI>
        <LI>G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysics_option4:
            adopt identical configuration for msc, muon, hadron, and ion physics.</LI>
        <LI>G4EmLivermorePhysics, G4EmPenelopePhysics, G4EmStandardPhysics_option4,
            G4EmStandardPhysics: selection of the model for energy loss
            fluctuation is included in ionisation processes according to the type
            defined in G4EmParameters.</LI>
        <LI>G4EmStandardPhysics, G4EmStandardPhysics_option3,
            G4EmStandardPhysics_option4: use G4GammaGeneralProcess by default.</LI>
        <LI>G4GammaGeneralProcess: implemented new method GetCreatorProcess().
            Apply Spline interpolation for tables at low energy (<TT><150 keV</TT>)
            and at high energy (<TT>> 100 MeV</TT>).</LI>
        <LI>G4EmStandardPhysics_option4: use Penelope ionisation model for e- 
            below <TT>100 keV</TT>.</LI>
        <LI>G4EmBuilder: use check on process sub-type, do not substitute
            G4CoupledTransportation with G4TransportationWithMsc.</LI>
        <LI>G4EmDNABuilder: new utility class, which provides instantiation of 
            standard and DNA processes/models; this reduces code duplication for
            DNA physics, energy intervals for DNA models are defined in one place.
            Added option2,3,4,6,8 configurations.
            Added extra utility methods to find or to build electron processes.
            Introduced constant upper limit of <TT>1 MeV</TT> for DNA models;
            introduced constant upper limit of <TT>2 MeV</TT> for standard
            low-energy ionisation; use the same upper limit for DNA excitation
            and ionisation.
            Enabling combination of DNA and standard physics processes.</LI>
        <LI>Increased upper limit of DNA proton/ion physics from <TT>100 MeV</TT>
            to <TT>300 MeV</TT> in all DNA constructors.</LI>
        <LI>Made G4EmDNAPhysics the base class for DNA physics constructors.
            Added interface to G4EmDNABuilder.</LI>
        <LI>G4EmDNABuilder, G4EmDNAPhysicsActivator: make consistent the
            configuration of DNA physics on top of standard physics.</LI>
        <LI>Simplified code in G4EmDNAPhysics_option1, G4EmDNAPhysics_stationary,
            G4EmDNAPhysics_option5 and G4EmDNAPhysics_stationary_option4.</LI>
        <LI>G4EmDNAPhysics_option6, G4EmDNAPhysics_option8: use "fast" option.</LI>
        <LI>G4EmDNAPhysics_option7, G4EmDNAPhysics_stationary_option6,
            G4EmDNAPhysics_option3, G4EmDNAPhysics_stationary_option2: simplified
            code.</LI>
        <LI>Added G4DNABrownianTransportation, SBS and IRT_syn models in
            G4EmDNAChemistry_option3.</LI>
        <LI>Added used headers in chemistry builders.</LI>
        </UL></LI>
    <LI><U>gamma_lepto_nuclear</U>:
        <UL>
        <LI>G4EmExtraPhysics, G4EmMessenger: added muon to muon pair process;
            use C++11 keywords; suppressed broadcasting of UI commands; moved
            initialisation class members to the headers.</LI>
        <LI>G4EmExtraPhysics: introduced tau-neutrino nucleus processes.</LI>
        </UL></LI>
    <LI><U>hadron_elastic</U>:
        <UL>
        <LI>G4HadronElasticPhysics: use G4HadProcesses utility to build neutron 
            elastic, which allows to use an option of neutron general process.<BR>
            Extended nuclear elastic for light hypernuclei and anti-hypernuclei
            projectiles.</LI>
        </UL></LI>
    <LI><U>hadron_inelastic</U>:
        <UL>
        <LI>G4HadronPhysicsFTFP_BERT, G4HadronPhysicsINCLXX: extension to inelastic
            nuclear interactions of light hypernuclei (with either FTFP only or 
            FTFP+INCLXX) and anti-hypernuclei (with only FTFP for all energies).
            Notice that the QGSP string model cannot currently handle nuclear 
            projectiles of any kind.</LI>
        <LI>G4HadronInelasticQBBC: use G4HadProcesses utility to build neutron 
            elastic, which allows to use an option of neutron general process.</LI>
        </UL></LI>
    <LI><U>limiters</U>:
        <UL>
        <LI>G4SpecialCuts: added setting of process type <TT>fGeneral</TT> and
            sub type.</LI>
        <LI>G4MinEkineCuts: removed setting of process type <TT>fUserDefined</TT>.</LI>
        <LI>G4NeutronTrackingCut: use enumerator for neutron general process instead
            of hard-coded number. Added check if G4NeutronGeneralProcess is defined to
            avoid double instantiation of the same cut.</LI>
        <LI>Moved G4UserSpecialCuts class from <TT>transportation</TT> module.</LI>
        <LI>Fixed defects reported by Coverity in G4GenericBiasingPhysics, to use
            <TT>auto&</TT>.</LI>
        </UL></LI>
    </UL></LI>
<LI><B>Util</B>:
    <UL>
    <LI>G4PhysListUtil: added new utility method to access a process via
        sub-type, simplified methods to access hadron processes.
        Use <TT>dynamic_cast</TT> instead of <TT>static_cast</TT>.
        In the method InitialiseParameters(), call the singleton
        G4FTFTunings::Instance() to allow the setting of a FTF tune via UI commands
        at <TT>PreInit</TT> state. Extended InitialiseParameters() method.</LI>
    <LI>G4PhysListUtil, G4HadProcesses: added extra methods needed for neutron
        general process initialisation. Use enumerator for neutron general process
        instead of hard-coded number in G4PhysListUtil.</LI>
    <LI>Added internal dependencies on <TT>hadronic/deexcitation/photon_evaporation</TT>,
        <TT>run</TT> and <TT>processes/management</TT> modules.</LI>
    </UL></LI>
</UL>

<A NAME="readout-notes">
<H3><I>Readout</I></H3></A>
<UL>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="run-notes">
<H3><I>Run</I></H3></A>
<UL>
<LI>Imported implementations of task-based interfaces/implementations from
    the <TT>tasking</TT> module. See <TT>History.tasking</TT> file for History
    of tasking code.</LI>
<LI>Added new G4DNAScavenger in PhysicsListHelper for DNA processes.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="tasking-notes">
<H3><I>Tasking</I></H3></A>
<UL>
<LI>Retired module. Contents merged in <TT>global</TT> and <TT>run</TT>
    categories.</LI>
</UL>

<A NAME="track-notes">
<H3><I>Track &amp; Tracking</I></H3></A>
<UL>
<LI>General clean-up of all ParticleChange classes: delete copy constructors
    and operator=(); removed unused methods; removed tracking cut to 1 eV
    implemented in G4ParticleChangeForLoss; make more effective handling of
    secondary tracks; substitute G4ParticleChangeForRadDecay with
    G4ParticleChangeForDecay; make all derived classes/methods final;
    removed commented code and corrected comments; removed duplicated code.
    Improved diagnostic for problems with primary track parameters or with
    secondary tracks; ensuring kinetic energy to be positive after a step;
    improved comments.</LI>
<LI>G4SteppingManager: removed G4Exception with JustWarning severity for the case
    of no active at rest processes existing. Addressing problem report
    <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2493">#2493</A>.</LI>
<LI>In G4ParticleChangeForTransport, simplified UpdateStepForAlongStep(),
    assuming that transportation is always the first process.
    Apply proposed step length; further simplified UpdateStepForAlongStep()
    method, assuming that transportation is always the first process.</LI>
<LI>G4ParticleChangeForMSC: substituted virtual initialisation by inline
    method. Fixed crash in <TT>/tracking/verbose 6</TT>.</LI>
<LI>Only set step status of <TT>fGeomBoundary</TT> when on volume boundary.</LI>
<LI>In G4SteppingManager, refactor and simplify processing of secondaries;
    use new virtual method GetCreatorProcess() when processing secondaries.
    Corrected <TT>ProcessDefinedStep</TT> for AtRest case.
    Removed check on cuts and removed dependence of tracking from EM physics;
    real implementation of ApplyCut() is done within EM physics classes.
    Merged G4SteppingManager translation units.</LI>
<LI>G4Track: added methods to get/set information on (short-lived) parent
    resonance.</LI>
<LI>Fixed compilation warnings for implicit type conversions on
    macOS/XCode 14.1.</LI>
</UL>

<A NAME="vis-notes">
<H3><I>Visualization</I></H3></A>
<UL>
<LI><B>General</B>
    <UL>
    <LI>Removed obsolete <TT>gl2ps</TT> subcategory and <TT>externals</TT>
        module.</LI>
    <LI>Fixed compilation warnings for implicit type conversions on
        macOS/XCode 14.1.</LI>
    <LI>Introduced G4warn (temporarly the same as G4cout) as new output stream
        for visualization code, and used in place of G4cerr.</LI>
    <LI>Updated build scripts and internal dependencies.</LI>
    </UL></LI>
<LI><B>Management</B>
    <UL>
    <LI>Implemented Twinkling, i.e, the rhythmic variation of brightness of
        given touchables: in G4VVisCommand added Twinkle() method; exploit
        twinkling in UI commands in G4VisCommandsTouchable and
        G4VisCommandsViewer.</LI>
    <LI>Implemented generic cutaway. Prior to this, cutaways were implemented
        only in OpenGL by using OpenGL's clipping plane feature. This still
        pertains for OpenGL since it is very fast, but here cutaways are
        implemented using Boolean operations in a reasonably robust and
        reliable way. Based on the initial motivation and implementation on
        the management side from
        <A HREF="https://github.com/Geant4/geant4/pull/53">GitHub PR#53</A>.</LI>
    <LI>Re-worked and rationalised special mesh rendering utilities.
        The idea is that these are "standard" functions that are optional.
        They are optimised for OpenGL but they also work fine for ToolsSG and
        Qt3D. An attempt to draw a mesh with any other driver will result in a
        warning and only the container will be drawn. Other drivers will have to
        implement their own AddCompound(...G4Mesh...) function or choose to use
        the standard functions or some thereof.</LI>
    <LI>Take advantage of recent developments in HepPolyhedron for rendering:
        conversion of tetrahedra to enclosing polyhedron removing inner surfaces;
        conversion of boxes to enclosing polyhedron removing inner surfaces.
        Also take advantage of developments in G4PhysicalVolumeModel:
        when a mesh has been found, an artificial node is created and added
        to the PVPath whose physical volume points to the parameterisation.</LI>
    <LI>G4VisCommandsViewer: <TT>/vis/viewer/centreOn</TT> and
        <TT>centreAndZoomInOn</TT>:
        only fly and twinkle if 'KernelVisitElapsedTimeSeconds < 0.1'.
        Introducing <TT>/vis/viewer/resetCameraParameters</TT> UI command, resetting
        *only* the camera parameters (view direction, etc.).</LI>
    <LI>G4VSceneHandler: added utility function Draw3DRectMeshAsDots(..); for a
        rectangular 3-D mesh, draw as coloured dots, one dot randomly placed in
        each visible cell. Tidy Draw3DRectMeshAsDots().
        Allow for multiple meshes in a single screen; relevant for special mesh
        rendering.
        Implemented GetPointInBox() and GetPointInTet() to sample a random point
        inside a box and a tetrahedron.
        Exploit move operator when creating polyhedra for Special Mesh Rendering.
        Numerous improvements to comments and messaging.</LI>
    <LI>Introducing drawing of parameterised tetrahedral mesh.
        G4VSceneHandler::DrawTetMeshAsDots(): default tet mesh drawing.</LI>
    <LI>Ensure X-geometry string is copied correctly to a new viewer.</LI>
    <LI>G4VisCommandsCompound: improved command guidance of <TT>/vis/open</TT>.</LI>
    <LI>G4VisCommandsViewer: improved command guidance of
        <TT>/vis/viewer/create</TT>.</LI>
    <LI>G4VisParameters: added new accessors IsWindowLocationHintX/YNegative().</LI>
    <LI>G4VisCommandsTouchable: augment <TT>/vis/touchable/draw</TT>, added Boolean
        argument: if true, draw the extent (bounding box); Default false.
        In <TT>/vis/touchable/dump</TT>, fix missing dump of vis attributes.</LI>
    <LI>G4VViewer: added data member and access method for
        <TT>KernelVisitElapsedTimeSeconds</TT>. This is measured in
        ProcessView().</LI>
    <LI>In G4VisExecutive, introducing 'FALLBACK' drivers for TSGQt and VTKQt.
        A FALLBACK vis driver is selected if the user chooses a UI session that
        is not compatible with the requested driver. For example, if the user
        has built Geant4 with Qt, the TSGQt driver will be available and be
        the "default" driver, so <TT>/vis/open TSG</TT> will attempt to open
        TSGQt. But if the user has chosen a dumb terminal session, the vis
        manager selects TSGX11, for example, instead. Added TOOLSSG_OFFSCREEN.</LI>
    <LI>Improved messaging for the case that a driver is not found in the
        candidate list.</LI>
    <LI>Changed G4cout to G4warn in those cases where 'verbosity >= warnings'.</LI>
    <LI>Introduced compound command: <TT>/vis/plot <h1|h2> <id></TT>.
        This is the first part of a programme to facilitate the drawing of
        plots (if any have been registered with the analysis manager) at the
        end of a run. At the moment only the ToolsSG vis driver can offer this,
        so the vis manager issues appropriate messages. 
        Later, we hope to introduce something like <TT>/vis/reviewPlots</TT>,
        which will allow the user to view all available plots in sequence.</LI>
    <LI>G4VisManager: added access method: IsEnabled(). Register the new
        commands. In EndOfEvent(), protect view checking with mutex lock
        in MT mode, and deal better with the case of scene requesting no kept
        events (greatly speeds plotting).
        Only print list of available histograms if more than one per category.
        GeometryHasChanged() is a method that is called by the run
        manager. Sometimes the user chooses to delete the existing geometry
        tree and ask the run manager to construct a new detector geometry.
        Previously existing vis models of the geometry become invalid and the
        vis manager had to pick up the new geometry.
        The vis manager removes invalid models from the vis scenes and now adds
        the new version of the world back in. Other types of models, trajectory
        drawing, for example, if specified in the original scene, are kept in
        the new version of the scene.<BR>
        Implemented G4VisManager::DrawGeometry(), drawing a geometry tree starting
        at the specified physical volume.</LI>
    <LI>G4VisCommandsSceneAdd: new command <TT>/vis/scene/add/plotter</TT>,
        to add G4PlotterModel to end-of-run list.
        Adapted <TT>/vis/scene/add/volume</TT> UI command to new
        G4PhysicalVolumesSearchScene.</LI>
    <LI>G4Scene: redefined IsEmpty().</LI>
    <LI>G4VisCommandsViewerSet: improved messaging for
        <TT>/vis/viewer/set/lineWidth</TT>; this simply prints a message saying
        how *actually* to change line width.</LI>
    <LI>Introducing <TT>/vis/viewer/set/specialMeshRenderingOption <dots|surfaces></TT>
        UI command; "dots" draw one dot per mesh point; "surfaces" group mesh
        points by colour and material and compute the outer surface or envelope,
        removing internal shared faces. So far, only the "dots" option is
        implemented for some drivers.</LI>
    <LI>Introducing <TT>/vis/viewer/set/lineWidth</TT> UI command, a do-nothing command
        that tells how to change line width.</LI>
    <LI>Implemented </TT>/vis/reviewPlots</TT> UI command.</LI>
    <LI>G4VisCommandsSceneAdd: changed the default width of axes added to the
        scene with automatic length and width determination.</LI>
    <LI>G4VisCommandsCompound, G4VisCommandsSceneAdd, G4VisCommandsTouchable,
        G4VisCommandsViewer: fixed control of verbosity.</LI>
    </UL></LI>
<LI><B>Modeling</B>
    <UL>
    <LI>G4Mesh: augmented available data for 3D rectangular mesh.
        Programmed for parameterised tetrahedron mesh.
        Simplified algorithm: now finding 1-deep rectangular meshes such as
        G4PhantomParameterisation.
        A simple parameterisation may only be one level; nested
        parameterisations may be 2- or 3-level.</LI>
    <LI>G4PhysicalVolumeModel: added <TT>LocalExtent</TT> and <TT>GlobalExtent</TT>
        to method GetAttDefs().
        Added modifiers; for AddCompound(mesh), provide an artificial node as
        an (optional) hook for anything that might be generated.
        Implemented generic cutaway: in G4PhysicalVolumeModel::DescribeSolid(),
        simplified clipping, sectioning and cutaway code.</LI>
    <LI>Migrated G4PhysicalVolumesSearchScene and G4TouchablePropertiesScene
        to use <TT>fTouchableFullPVPath</TT>.</LI>
    <LI>Retired G4BoundingSphereScene and G4PhysicalVolumeSearchScene.
        G4BoundingSphereScene accumulated bounding spheres and often
        overestimated the extent of the scene; it is now superseded by
        G4BoundingExtentScene. G4BoundingExtentScene deals directly with
        extents, which makes it neater and more tightly estimates the overall
        extent of the scene.</LI>
    <LI>G4PhysicalVolumeSearchScene is superseded by
        G4PhysicalVolumesSearchScene. G4PhysicalVolumesSearchScene finds all
        occurrences of a physical volume and returns a "findings vector".
        Removed last ambiguous and misleading argument in the constructor.</LI>
    <LI>G4PseudoScene: added AddCompound(const G4Mesh&) method; if special mesh
        rendering is set, this catches mesh candidates (certain types of
        parameterisations) and avoids descending into the parameterisations.</LI>
    <LI>G4PhysicalVolumeModel: added SetSpecialMeshRendering(true) to avoid
        traversing (certain types of) parameterisations (see above).
        Eliminated <TT>goto</TT> statements.</LI>
    <LI>Allow arrow proportions to be greater than 1/100. Produces more visible
        arrows for field visualisation and also obeys the input parameters more
        closely.</LI>
    </UL></LI>
<LI><B>FukuiRenderer</B>
    <UL>
    <LI>Replaced use of sprintf() with snprintf(), to fix deprecation compilation
        warnings on macOS-13 SDK.</LI>
    </UL></LI>
<LI><B>gMocren</B>
    <UL>
    <LI>G4GMocrenFileSceneHandler: removed redundant header inclusion.</LI>
    </UL></LI>
<LI><B>OpenGL</B>
    <UL>
    <LI>G4OpenGLSceneHandler: in AddCompound(..), use base class utility
        G4VSceneHandler::Draw3DRectMeshAsDots(..); for parameterised tetrahedron
        mesh, call default G4VSceneHandler::DrawTetMeshAsDots(); added missing
        return statement for unimplemented cases; code tidy.</LI>
    <LI>G4OpenGLStoredViewer, G4OpenGLStoredQtViewer: added check on special
        mesh rendering option in CompareForKernelVisit().</LI>
    <LI>Updated comment about requesting a kernel visit when cutaway mode
        changes (noted but not relevant because OGL does its own cutaways).</LI>
    <LI>Minor tidy: speed cutaway check in G4OpenGLViewer::SetView().</LI>
    <LI>Retired display list re-use and display list limit.</LI>
    <LI>Added G4gl2ps, a class frontend to <TT>tools/gl2ps</TT> intended to
        be used by OpenGL and OpenInventor; does not depend directly of OpenGL.</LI>
    <LI>Have G4OpenGLViewer use the thread safe <TT>tools/gl2ps</TT>.</LI>
    <LI>Use StandardSpecialMeshRendering(mesh).</LI>
    <LI>Fixed compiler warnings in the use of G4OpenGLQtViewer::toggleProjection.</LI>
    <LI>Replaced use of sprintf() with snprintf(), to fix deprecation compilation
        warnings on macOS-13 SDK.</LI>
    <LI>Fixed compilation warnings on Intel/icc compiler for deprecated conversion
        of string literal to char* in G4OpenGLXmConvenienceRoutines and
        G4OpenGLXmViewer.</LI>
    </UL></LI>
<LI><B>OpenInventor</B>
    <UL>
    <LI>Implemented special mesh rendering.</LI>
    <LI>Request kernel visit when cutaway mode changes in G4OpenInventorViewer.</LI>
    <LI>G4OpenInventorQtExaminerViewer: for macOS only, disabled the mouse wheel
        event handler to fix the trackpad zoom direction issue.</LI>
    <LI>G4OpenInventorViewer: removed misleading obsolete comment regarding
        kernel visit in the case of a change in vis attribute modifiers.</LI>
        Added check on special mesh rendering option in CompareForKernelVisit().</LI>
    <LI>G4OpenInventorQtExaminerViewer: fixed compilation warning on Intel
        compiler for shadowing data.</LI>
    <LI>Have G4OpenGLOpenInventorViewer and SoGL2PSAction using the thread safe
        tools/gl2ps.</LI>
    <LI>Replaced use of sprintf() and vsprintf() with snprintf() and vsnprintf()
        respectively, to fix deprecation compilation warnings on macOS-13 SDK.</LI>
    <LI>Fixed compilation warnings on Intel/icc compiler for deprecated conversion
        of string literal to char* in G4OpenInventorQtExaminerViewer.</LI>
    <LI>Fixed compilation warning on gcc-12.</LI>
    </UL></LI>
<LI><B>Qt3D</B>
    <UL>
    <LI>G4Qt3DViewer: re-implemented wheelEvent() for perspective projection;
        now taking into account the extent of the scene.
        Added check on special mesh rendering option in CompareForKernelVisit().</LI>
    <LI>G4Qt3DSceneHandler:in AddCompound(..), use base class utility
        G4VSceneHandler::Draw3DRectMeshAsDots(..).</LI>
    <LI>Request kernel visit when cutaway mode changes in G4Qt3DViewer.</LI>
    <LI>G4Qt3DSceneHandler::AddCompound(): for parameterised tetrahedron mesh,
        call default G4VSceneHandler::DrawTetMeshAsDots().</LI>
    <LI>G4Qt3DSceneHandler: updated AddPrimitive(..) to current usage.
        Commented out line elimination in AddPrimitive(..), as too expensive for
        a large polyhedron; allow the graphics-reps utilities to optimise this.
        Use StandardSpecialMeshRendering(mesh).</LI>
    <LI>Fixed compilation warnings about shadowing.</LI>
    </UL></LI>
<LI><B>ToolsSG</B>
    <UL>
    <LI>New offscreen sub-driver.</LI>
    <LI>G4ToolsSGViewer: handle ambient lightning; handling zb_png and zb_jpeg
        formats; corrected fSGViewer->set_clear_color().</LI>
    <LI>Request kernel visit when cutaway mode changes in G4ToolsSGViewer.</LI>
    <LI>G4ToolsSGViewer: reimplement wheel_rotate() for perspective projection;
        now taking into account the extent of the scene.
        Currently, the ToolsSG viewer cannot draw trajectories in MT mode, so
        in function SwitchToMasterThread() we draw any events that have been
        kept by the vis manager. It fixes an issue where plots were being drawn
        twice.</LI>
    <LI>Reactivate G4ToolsSGQtGLES::IsUISessionCompatible(), paves way for
        permitted instantiation of multiple TSG drivers.</LI>
    <LI>Access G4VVisCommand::G4VisManager pointer through static function
        GetVisManager() to prevent DLL issues on Windows.</LI>
    <LI>G4ToolsSGSceneHandler: in AddPrimitive(), define dots as a single pixel;
        Use GetMarkerSize() for circles and squares.
        In AddCompound(): for parameterised tetrahedron mesh, call default
        G4VSceneHandler::DrawTetMeshAsDots().
        Adding warning message if plot cannot be found.
        In SetPlotterHistograms(), suppressed <TT>/control/verbose</TT>
        messages for <TT>/analysis/*/get*</TT> commands.
        In AddPrimitive(..), comment out common line elimination, as too
        expensive for a large polyhedron; allow the graphics-reps utilities to
        optimise this. Use StandardSpecialMeshRendering(mesh).</LI>
    <LI>Changed namespace for g4tools code from "tools" to "toolx" for externals.</LI>
    </UL></LI>
<LI><B>Vtk</B>
    <UL>
    <LI>Moved setting of G4VIS_USE_VTK_QT flag to <TT>interfaces</TT> module.</LI>
    <LI>Replaced reinterpret_cast with static_cast where possible.</LI>
    </UL></LI>
</UL>

<A NAME="env-notes">
<H3><I>Environments</I></H3></A>
<UL>
<LI>Removed g4py and zmq builtin environments.
    The source and support for these have moved to GitHub under:
    <UL>
    <LI><A HREF="https://github.com/koichi-murakami/g4python">Geant4Py</A></LI>
    <LI><A HREF="https://github.com/koichi-murakami/zmq-geant4">ZMQ</A></LI>
    </UL></LI>
</UL>

<A NAME="data-notes">
<H3><I>Data sets</I></H3></A>
<UL>
<LI>New low-energy data set version, <B>G4EMLOW-8.2</B>:
    <UL>
    <LI>New files for Nitrogen cross-sections for dna models.</LI>
    <LI>New files for fluorescence and Auger electron transitions for
        heavy elements <TT>Z=101-104</TT>.</LI>
    <LI>Added DNA files for the RPWBA models.</LI>
    </UL></LI>
<LI>New neutron data files for low energy neutron transport with
    thermal cross-sections <B>G4NDL-4.7</B>:
    <UL>
    <LI>Updated <TT>ThermalScattering</TT> component, obtained from thermal
        scattering data from JEFF-3.3, and adding the ENDF/BVIII-0 materials
        not in JEFF-3.3, coupled to JEFF-3.3 nuclear cross-sections.</LI>
    </UL></LI>
</UL></LI>

<A NAME="ex-notes">
<H3><I>Examples</I></H3></A>
<UL>
<LI>Updated reference outputs, macros, READMEs and scripts.</LI>
<LI>Fixes for Doxygen documentation and coding guidelines.</LI>
<LI>Fixed compilation warnings on Intel-icx compiler for set but unused
    variables.</LI>
<LI><B><U>advanced</U></B>
    <UL>
    <LI>Updated to use default MixMax random generator.</LI>
    <LI><B>air_shower</B>
        <UL>
        <LI>Define all material properties in order of increasing energy.</LI>
        </UL></LI>
    <LI><B>amsEcal</B>
        <UL>
        <LI>Prefer pointer to <TT>const G4Material</TT> where possible.</LI>
        </UL></LI>
    <LI><B>brachytherapy</B>
        <UL>
        <LI>Migration to C++11/14/17 features.</LI>
        </UL></LI>
    <LI><B>CaTS</B>
        <UL>
        <LI>Fixed compilation warnings on latest gcc compilers.</LI>
        </UL></LI>
     <LI><B>ChargeExchangeMC</B>
        <UL>
        <LI>CexmcHadronicProcess: disabled integral method, as not applicable to
            this example.</LI>
        </UL></LI>
    <LI><B>eFLASH_radiotherapy</B>
        <UL>
        <LI>New application simulating the beamline and energy spectra based on the
            Triode Electron Gun Equipped ElectronFlash Manufactured by Sordina Iort
            Technologies S.p.A. available at the Centro Pisano Flash Radiotherapy (CPFR)
            at Pisa. The linac is able to provide low-energy electron flash beams and
            is currently the first machine installed in Italy capable of reaching
            FLASH dose-rate (MGy/s) and extremely high dose per pulse DPP).</LI>
        </UL></LI>
    <LI><B>eRosita</B>
        <UL>
        <LI>Migrated to use C++17 Standard. General code refactoring.</LI>
        <LI>Removed obsolete physics classes.</LI>
        <LI>Updated physics-list with Livermore and Penelope models.</LI>
        <LI>Replaced <TT>getenv()</TT> calls for data variables with
            G4FindDataDir().</LI>
        </UL></LI>
    <LI><B>gammaray_telescope</B>
        <UL>
        <LI>Migrated to use C++17 Standard. General code refactoring.</LI>
        </UL></LI>
    <LI><B>hadrontherapy</B>
        <UL>
        <LI>Prefer pointer to <TT>const G4Material</TT> where possible.</LI>
        </UL></LI>
    <LI><B>human_phantom</B>
        <UL>
        <LI>Fixed GDML description of the phantom.</LI>
        <LI>Code review.</LI>
        </UL></LI>
    <LI><B>ICRP110_HumanPhantoms</B>
        <UL>
        <LI>Use special mesh rendering.</LI>
        <LI>Corrected error in reading the first voxels (in x=0, y=0).</LI>
        <LI>Migration to C++11/14/17 features.</LI>
        </UL></LI>
    <LI><B>ICRP145_HumanPhantoms</B>
        <UL>
        <LI>New example implementing a ICRP145 human phantom, based on
            related <A HREF="https://www.icrp.org/publication.asp?id=ICRP%20Publication%20145">ICRP publication</A>.</LI>
        </UL></LI>
    <LI><B>iort_therapy</B>
        <UL>
        <LI>Simplified calls to SetProductionCut().</LI>
        </UL></LI>
    <LI><B>medical_linac</B>
        <UL>
        <LI>Replaced sprintf() use with std::to_string(); sprintf() deprecated
            on macOS-13, leading to compilation warnings.</LI>
        </UL></LI>
    <LI><B>microbeam</B>
        <UL>
        <LI>Moved back to original switching field value.</LI>
        </UL></LI>
    <LI><B>radioprotection</B>
        <UL>
        <LI>Added diamondTelescope detector. Messengers modified accordingly.</LI>
        <LI>Added python scripts to analyze the spectra files and calculate
            microdosimetric Quantities.</LI>
        </UL></LI>
    <LI><B>STCyclotron</B>
        <UL>
        <LI>Removed no-op lines; simplified calls to SetProductionCut().</LI>
        </UL></LI>
    </UL></LI>
<LI><B><U>basic</U></B>
    <UL>
    <LI>Applied clang-tidy checks.</LI>
    <LI><B>B1</B>
        <UL>
        <LI>In vis.mac, commented TSG_OFFSCREEN usage example.</LI>
        </UL></LI>
    <LI><B>B3</B>
        <UL>
        <LI>Set new analysis file name for the second run in run2.mac to avoid
            overwriting the output from the first run.</LI>
        <LI>Activated merging of n-tuples with score n-tuple writer.</LI>
        <LI>Added commented setting in run2.mac.</LI>
        </UL></LI>
    <LI><B>B4</B>
        <UL>
        <LI>Activated merging of n-tuples with score n-tuple writer in B4d.</LI>
        </UL></LI>
    </UL></LI>
<LI><B><U>extended</U></B>
    <UL>
    <LI><B>analysis</B>
        <UL>
        <LI>Use G4Accummulables for RunAction summary data in AnaEx01 and AnaEx02
            to get them merged in MT mode.</LI>
        <LI>Reordered runs in test macro (run the test run first to get meaningful
            output at the end).</LI>
        <LI>Updated AnaEx01 and AnaEx02 classes in shared with modifications applied
            in AnaEx03.</LI>
        <LI><B>AnaEx03</B>
            <UL>
            <LI>New example demonstrating usage of analysis commands for file
                management, in particular writing histograms and n-tuples in a
                file multiple times.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>biasing</B>
        <UL>
        <LI>Removed redundant code (forward declarations, includes) from GB*
            examples.</LI>
        </UL></LI>
    <LI><B>common</B>
        <UL>
        <LI>Applied new coding guidelines and added tests.</LI>
        </UL></LI>
    <LI><B>electromagnetic</B>
        <UL>
        <LI><B>TestEm1</B>
            <UL>
            <LI>In PhysicsList::AddRadioactiveDecay(), enable atomic de-excitation.
                Addressing problem report
                <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2494">#2494</A>.</LI>
            <LI>Added three new macros to play with StepFunction(): pRange,
                alphaRange, ionRange.</LI>
            <LI>PhysicsList::AddRadioactiveDecay(): updated lifeTime threshold.</LI>
            <LI>Updated photoelec.mac macro.</LI>
            </UL></LI>
        <LI><B>TestEm3</B>
            <UL>
            <LI>Prefer pointer to <TT>const G4Material</TT> where possible.</LI>
            </UL></LI>
        <LI><B>TestEm5</B>
            <UL>
            <LI>Allow changing the gun position via UI command.</LI>
            <LI>Added summary on gamma processes.</LI>
            </UL></LI>
        <LI><B>TestEm7</B>
            <UL>
            <LI>Make local EM physics the same as EM physics option3 with
                G4IonParameterizedModel.</LI>
            </UL></LI>
        <LI><B>TestEm9</B>
            <UL>
            <LI>Updated all user actions: more correct count of creator processes;
                use C++11 keywords; removed not needed headers; moved ScoreNewTrack(..)
                from Tracking to Stepping action class.</LI>
            <LI>Removed verbose data member in PhysListEmStandard, use the
                <TT>verboseLevel</TT> defined in the base class for this purpose.</LI>
            </UL></LI>
        <LI><B>TestEm11</B>
            <UL>
            <LI>PhysicsList::AddRadioactiveDecay(): updated lifeTime threshold.</LI>
            </UL></LI>
        <LI><B>TestEm15</B>
            <UL>
            <LI>Added description of UI commands to control G4BetheHeitler5DModel.</LI>
            </UL></LI>
        <LI><B>TestEm16</B>
            <UL>
            <LI>Minor cleanup in vis.mac and run01.mac to make MT output more
                readable.</LI>
            </UL></LI>
        <LI><B>TestEm17</B>
            <UL>
            <LI>Added new process of muon pair production by muons; extended analysis
                and added new histograms.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>errorpropagation</B>
        <UL>
        <LI>New examples category and moved existing example (now renamed
            <TT>errProp</TT>) therein.</LI>
        </UL></LI>
    <LI><B>eventgenerator</B>
        <UL>
        <LI><B>particleGun</B>
            <UL>
            <LI>Updated reference in PrimaryGeneratorAction2.</LI>
            </UL></LI>
        <LI><B>pythia/decayer6</B>
            <UL>
            <LI>P6DExtDecayerPhysics: make sure the external decayer is set to
                G4Decay process only once to avoid potential misleading.</LI>
            </UL></LI>
        <LI><B>pythia/py8decayer</B>
            <UL>
            <LI>Added ActionInitialization class.</LI>
            <LI>Updated pythia8_decayer to use ActionInitialization.
                Code cleanup to avoid potential misleading.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>exoticphysics</B>
        <UL>
        <LI><B>channeling</B>
            <UL>
            <LI>Use single-scattering EM physics instead of Opt4 and disabled Coulomb
                scattering.</LI>
            </UL></LI>
        <LI><B>monopole</B>
            <UL>
            <LI>G4MonopoleTransportation: set step status on volume boundary.</LI>
            <LI>Removed useless 'const_cast' of G4VSensitiveDetector.</LI>
            </UL></LI>
        <LI><B>ucn</B>
            <UL>
            <LI>Corrected value of epsMax, to 0.001 in DetectorConstruction.
                Also fixed epsMin to be dimensionless.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>field</B>
        <UL>
        <LI><B>field01</B>
            <UL>
            <LI>Added Boris integration method as an option.</LI>
            <LI>In main(), demonstrating how to use G4TransporationParameters to set
                looper values for transportation.</LI>
            <LI>F01FieldSetup: show how to control Epsilon Min/Max.</LI>
            </UL></LI>
        <LI><B>field04</B>
            <UL>
            <LI>Replaced sprintf() use with std::to_string(); sprintf() deprecated
                on macOS-13, leading to compilation warnings.</LI>
            <LI>Corrected value of epsMax, to 0.001 n DetectorConstruction.
                Also fixed epsMin to be dimensionless.</LI>
            <LI>Fixed compilation warning on gcc-12.</LI>
            </UL></LI>
        <LI><B>field05</B>
            <UL>
            <LI>Corrected value of epsMax, to 0.001 n DetectorConstruction.
                Also fixed epsMin to be dimensionless.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>g3tog4</B>
        <UL>
        <LI>Updated common directory.</LI>
        </UL></LI>
    <LI><B>hadronic</B>
        <UL>
        <LI><B>FissionFragment</B>
            <UL>
            <LI>Replaced sprintf() use with std::to_string(); sprintf() deprecated
                on macOS-13, leading to compilation warnings.</LI>
            </UL></LI>
        <LI><B>Hadr01</B>
            <UL>
            <LI>Added UI commands to enable charmed and bottom hadrons physics and
                hypernuclei (and anti-hypernuclei) physics; 
                added macro files to demonstrate this.</LI>
            </UL></LI>
        <LI><B>Hadr03</B>
            <UL>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).
                Use G4NuclideTable::SetMeanLifeThreshold(1ns);
                use QBBC as the default configuration.
            <LI>In Run, added protection for the case when G4NeutronGeneralProcess
                is used; in that case it is not currently possible to access
                cross-section via G4HadronicProcessStore. Addressing problem report
                <A href="https://bugzilla-geant4.kek.jp/show_bug.cgi?id=2517">#2517</A>.</LI>
            <LI>Use default MixMax engine in main().</LI>
            </UL></LI>
        <LI><B>Hadr05</B>
            <UL>
            <LI>Prefer pointer to 'const G4Material' where possible.</LI>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).</LI>
            </UL></LI>
        <LI><B>Hadr06</B>
            <UL>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).</LI>
            </UL></LI>
        <LI><B>Hadr07</B>
            <UL>
            <LI>TrackingAction: print ions with zero meanLife.</LI>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).</LI>
            </UL></LI>
        <LI><B>Hadr08</B>
            <UL>
            <LI>BiasingOperation: use Bertini cascade instead of pre-compound model,
                as not applicable for pion interactions. The Bertini cascade is
                applied from 0 to <TT>41 MeV</TT>, INCLXX from <TT>40 MeV</TT> to
                <TT>12 GeV</TT>.</LI>
            <LI>Moved run initialisation to macro files.</LI>
            </UL></LI>
        <LI><B>Hadr09</B>
            <UL>
            <LI>Extended to exercise hypernuclei and anti-hypernuclei inelastic nuclear
                interactions.</LI>
            </UL></LI>
        <LI><B>NeutronSource</B>
            <UL>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).</LI>
            </UL></LI>
        <LI><B>ParticleFluence</B>
            <UL>
            <LI>New set of examples implementing different setups showing how to score
                particle fluences (Sphere, Concentric Spheres, Layer, Calo).</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>medical/DICOM</B>
        <UL>
        <LI>Introduced special mesh rendering of DICOM image.</LI>
        <LI>Replace sprintf with direct G4String use to remove deprecation warnings
            on macOS-13.</LI>
        </UL></LI>
    <LI><B>medical/dna</B>
        <UL>
        <LI><B>chem4</B>:
            <UL>
            <LI>Added macro commands to control chemical molecules and reactions.</LI>
            <LI>Minor correction for reaction type in macro file <TT>beam.in</TT>.</LI>
            <LI>Use <TT>thread-local</TT> flag in G4VMoleculeCounter.</LI>
            </UL></LI>
        <LI><B>chem5</B>:
            <UL>
            <LI>Use <TT>thread-local</TT> flag in G4VMoleculeCounter.</LI>
            </UL></LI>
        <LI><B>chem6</B>:
            <UL>
            <LI>Adding condition for only one event, to avoid potential FPE crash.</LI>
            <LI>Added PhysicsListMessenger.</LI>
            <LI>Added short chemical reaction list.</LI>
            <LI>Use <TT>thread-local</TT> flag in G4VMoleculeCounter.</LI>
            <LI>Added missing headers inclusion for self-consistency.</LI>
            <LI>Fixed analysis macros to allow running on Window.</LI>
            </UL></LI>
        <LI><B>dnaphysics</B>:
            <UL>
            <LI>In main(), enable visualisation only in interactive mode;
                use G4RunManagerFactory.</LI>
            <LI>Added UI command to add different standard EM, DNA physics, and 
                radioactive decay models.</LI>
            <LI>PhysicsList: added RadioactiveDecayPhysics.
                Added possibility to change DNA physics via UI commands.</LI>
            </UL></LI>
        <LI><B>icsd</B>:
            <UL>
            <LI>PhysicsList: make use of nitrogen material.</LI>
            <LI>Geometry: propose two geometries, nanodosimeter (N2) and dna (THF).</LI>
            </UL></LI>
        <LI><B>jetcounter</B>:
            <UL>
            <LI>New example providing a setup for simulation of a typical experiment
                with the Jet Counter nanodosimeter. Allows the calculation of the
                ionisation cluster size distribution (ICSD) (the number of ionisations
                per projectile) in a real sized cylindrical interaction volume (IV) of
                the Jet Counter device.</LI>
            </UL></LI>
        <LI><B>microyz</B>:
            <UL>
            <LI>Added UI commands for TrackerSD radius selection.</LI>
            <LI>Added missing headers inclusion for self-consistency.</LI>
            </UL></LI>
        <LI><B>moleculardna</B>:
            <UL>
            <LI>New example showing how to simulate physics, physico-chemistry and
                chemistry processes in DNA geometries, for simulating DNA damage.</LI>
            </UL></LI>
        <LI><B>scavenger</B>:
            <UL>
            <LI>Fixed analysis macros to allow running on Window.</LI>
            <LI>EmDNAChemistry: added forgotten header.</LI>
            <LI>Use <TT>thread-local</TT> flag in G4VMoleculeCounter.</LI>
            </UL></LI>
        <LI><B>spower</B>:
            <UL>
            <LI>In main(), enable visualisation only in interactive mode;
                use G4RunManagerFactory.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>optical</B>
        <UL>
        <LI><B>LXe</B>
            <UL>
            <LI>Modified LXeSteppingAction: removed thread-local variable;
                use PDG code instead of particle name; added more checks on
                pointers; extended printout before fatal exception.</LI>
            </UL></LI>
        <LI><B>OpNovice2</B>
            <UL>
            <LI>Added new macro complexRindex.mac, using dielectric-metal surface with
                the surface having a complex index of refraction.</LI>
            <LI>Added new histograms to record separately Fresnel reflection, TIR,
                absorption, etc.</LI>
            <LI>Use new histos to plot spike reflection/absorption vs angle on surface
                (useful for complex refractive index).</LI>
            <LI>PrimaryGeneratorMessenger: fixed command /opnovice2/gun/randomDirection.
                Based on
                <A HREF="https://github.com/Geant4/geant4/pull/33">GitHub PR#33</A>.</LI>
            <LI>Added local SteppingVerbose to print velocity with
                <TT>/tracking/verbose 1</TT>.</LI>
            <LI>New macro coated.mac, and book-keeping code, to show
                reflection/refraction from thin film coating.</LI>
            <LI>SteppingAction: check that group velocity is correct.
                Don't include Absorbed or Detected photons in plots for forward-going
                particles.</LI>
            </UL></LI>
        <LI><B>wls</B>
            <UL>
            <LI>Fixed compilation warning on gcc-12.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>parallel</B>
        <UL>
        <LI><B>MPI</B>
           <UL>
           <LI>Removed use of obsolete G4DeveloperAPI functions from CMake script.</LI>
           <LI>Changed namespace for g4tools code from <TT>tools::mpi</TT> to
               <TT>toolx::mpi</TT>.</LI>
           <LI>Updated analysis classes for changes in analysis module.</LI>
           <LI>Fixed exMPI04 example failing in sequential mode when MPI n-tuple
               merging is activated.</LI>
           </UL></LI>
        </UL></LI>
    <LI><B>parameterisations</B>
        <UL>
        <LI><B>Par04</B>
           <UL>
           <LI>Added python training scripts.</LI>
           <LI>Added model conversion to ONNX and LWTNN to the training script.</LI>
           <LI>Added updated version of the training code (PEP 8 style guide,
               formatting with YAPF, annotation with types, code upgrade to TF2.9,
               logic for GPU usage management).</LI>
           <LI>Added support of LibTorch for inference.</LI>
           <LI>Fixed warnings and lwtnn macro.</LI>
           <LI>Changed visualization scripts for fast simulation.</LI>
           <LI>Added new control histograms.</LI>
           <LI>Changed extension of macros from .in to .mac.</LI>
           </UL></LI>
        </UL></LI>
    <LI><B>radioactivedecay</B>
        <UL>
        <LI><B>Activation</B>
            <UL>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).</LI>
            </UL></LI>
        <LI><B>rdecay01</B>
            <UL>
            <LI>PhysicsList: added G4NuclideTable::SetThresholdOfHalfLife(1ns*log2).
                In constructor, adjust meanLifeTime and halfLifeTime.
                Added SetInternalConversionFlag() function.<BR>
                Moved setup of options to the class constructor; use minimal
                list of particles defined in G4EmBuilder; added extended comments
                to the code; updated headers according to C++11.
                Adjusted meanLifeTime and halfLifeTime.</LI>
            <LI>Use default MixMax engine in main().</LI>
            <LI>Fixed compilation warning on gcc-12.</LI>
            </UL></LI>
        </UL></LI>
    <LI><B>runAndEvent</B>
        <UL>
        <LI><B>RE02</B>
           <UL>
           <LI>Replaced sprintf() with std::ostringstream to fix deprecation
               warnings on macOS-13.</LI>
           </UL></LI>
        <LI><B>RE07</B>
           <UL>
           <LI>Renamed static class member <TT>fMasterTrackingManager</TT>.</LI>
           <LI>Applied clang-format to code.</LI>
           </UL></LI>
        </UL></LI>
    </UL>
</UL>

<P> </P>
<A NAME="10."></a>
<HR>

<!-- ============================================== -->

<H2>10. Appendix</H2>

<A NAME="migration-notes">
<H3>A1 - Location of Geant4's datasets<I></I></H3></A>
<P> </P>
Use of environment variables to locate Geant4's datasets at application
runtime is now optional, the following fallback-based search is being used
for backward compatibility with existing setups:
<UL>
<LI>If an environment variable for an individual dataset, e.g.
    G4ENSDFSTATEDATA, is set, then this is used as the location of that
    dataset and no further search for that dataset is performed.
    The toolkit code raises a <TT>G4Exception</TT> if the dataset is not
    present.</LI>
<LI>If the GEANT4_DATA_DIR environment variable is set, then this is taken
    as a directory under which all datasets are located, and no further
    search is performed. The toolkit code raises a <TT>G4Exception</TT> if
    the requested dataset is not present in this directory.</LI>
<LI>If none of the above environment variables are set then datasets are
    searched for under the following ordered sequence of paths:
    <OL>
    <LI>The (absolute) path set at configuration time by the
        GEANT4_INSTALL_DATADIR CMake variable;
    <LI>Subdirectories <TT>share/Geant4/data</TT>, <TT>share/geant4/data</TT>,
        <TT>share/data</TT>, and <TT>data</TT> of the Geant4's install
        location as set at configuration time by the CMAKE_INSTALL_PREFIX
        CMake variable (<TT>C:\\Program Files</TT> (Windows only);
        <TT>C:\\Geant4</TT> (Windows only); <TT>/usr/local</TT>,
        <TT>/usr</TT>).
    </OL>
    The toolkit code raises a <TT>G4Exception</TT> if the requested dataset
    is not found in any of these locations.</LI>
<LI>User code that directly accesses the datasets should migrate from use
    of raw <TT>std::getenv()</TT> calls to the builtin <TT>G4FindDataDir</TT>
    free function, e.g.
    <PRE>
    #include "G4EnvironmentUtils.hh"

    // const char* p = std::getenv("G4ENSDFSTATEDATA");
    const char* p = G4FindDataDir("G4ENSDFSTATEDATA");
    </PRE>
    which implements the above search sequence and does not rely on the
    per-dataset environment variables being set; <TT>nullptr</TT> is
    returned if the dataset is not located, it being up to the callee to
    decide what to do in this situation.</LI>
</UL>

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