Additional Notes

Of the described changes, it seems very few would impact low energy physics in a meaningful way so this section is quite minimal, and should be considered otherwie similar to Geant4.10.2 below;
- Although, Geant4.10.3 was not formally tested by myself

Logs

New e+e- pair creation added to standard_physics_option4
- Changes in e-e+ distributions observed in Geant4.10.4 comparisons
Precompound/de-excitation code has been restructed in order to use the same data as radioactive-decay model and former, internal hard-coded data are not used any longer. The possibility to simulate correlated emissions of gammas has been introduced but not yet activated.
Particles properties have been updated according to PDG-2015.
Reverted QGS (and FTF) models to previous stable implementations - similar to Geant4.10.1 release.