Terms containing backward compatibility

Subject	English	French
el., mech.	backward compatibility	compatibilité ascendante
IT, tech.	backward compatibility	compatibilité a posteriori
IT, tech.	backward compatibility	compatibilité descendante
comp., MS	backward compatibility	compatibilité descendante (The capability of source code or programs developed on a more advanced system or compiler version to be executed or compiled by a less advanced (older) version)
gen.	non-backward compatibility	incompatibilité descendante