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<HTML>
<HEAD>
<TITLE>Geant4 11.1 Release Notes</TITLE>
</HEAD>
<BODY BGCOLOR='F0F0F0'>
<P> </P>
<BR>
<P> </P>
<P ALIGN="Center">
<FONT SIZE="+4" COLOR="#238E23">
<B>Geant4 11.1 Release Notes</B>
</FONT>
<TABLE WIDTH="100%">
<TR><TD ALIGN="Right">
<FONT SIZE="-1" COLOR="#5C3317">
<B><I>December 9<SUP>th</SUP>, 2022</I></B>
</FONT>
</TD></TR>
</TABLE>
<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 & 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>