Geant4 10.7 Release Notes
December 4th, 2020



The code and binary libraries for the supported systems are available through our Source Code Web page.

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.

Please refer to the Geant4 User Documentation for further information about using Geant4.

Contents

  1. Supported and Tested Platforms
  2. Supported CLHEP and VecGeom versions
  3. Items for migration of the user code
  4. New Developments and Capabilities
  5. Expected effects on physics and performance
  6. Known Run-Time Problems and Limitations
  7. Compilation Warnings
  8. Geant4 Software License
  9. Detailed list of changes and fixes


1. Supported and Tested Platforms

Platforms: More verified and tested configurations (64 bits):


2. Supported CLHEP and VecGeom version

This release of Geant4 requires and has been verified with CLHEP, release 2.4.4.0. Use of a different CLHEP version may cause incorrect simulation results.
NOTE: an internal module of the relevant CLHEP classes is provided and can be used as alternative to an external CLHEP library installation.
A configuration option allows a Geant4 installation to use the VecGeom Library primitives, to replace the original Geant4 solids. VecGeom version 1.1.8 is required when using such configuration.


3. Items for migration of the user code

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.

General

Geometry, Fields and Transportation

Electromagnetic and optical physics

Hadronic physics

Data Sets


4. New Developments and Capabilities

General Analysis Digitization, Hits & Scoring Geometry and Field Materials Electromagnetic physics Hadronic physics Physics Lists Visualization and Interfaces Examples

5. Expected effects on physics and computing performance

General Electromagnetic physics Hadronic physics


6. Known Run-Time Problems and Limitations

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 Geant4 Problem Reporting System.


7. Compilation Warnings

There may be a few compilation warnings on some platforms, particularly on Windows with Visual Studio, where warnings level has been raised when building examples. We do not believe that any of these lead to incorrect run-time behaviour.


8. Geant4 Software License

A Software License applies to the Geant4 code. Users must accept this license in order to use it. The details and the list of copyright holders is available at http://cern.ch/geant4/license and also in the text file LICENSE distributed with the source code.


9. Detailed list of changes and fixes

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):

Configuration

Analysis

Digitization & Hits

Electromagnetic Processes

Error Propagation

Event

Externals

G3toG4

General Processes

Geometry

Global

Graphical Representations

Hadronic Processes

Intercoms

Interfaces

Materials

Parameterisations

Particles

Persistency

Physics lists

Run

Tasking

Track & Tracking

Visualization

  • Use CMake AUTOMOC to automatically generate and compile Moc sources and fixed CMake script to support new CMake system.
  • Fixed text typos in printout. Problem report #2285 and GitHub PR#15.
  • Environments

    Data sets

    Examples