Over time, the AS350 Écureuil/AStar has received further development; while the aircraft's design remains broadly similar, various aspects and systems such as the rotor system, powerplants, and avionics have been progressively improved.
Co tempo, o AS350 Écureuil/AStar recibiu un maior desenvolvemento; mentres que o deseño do aparello é bastante similar, varios aspectos e sistemas como o rotor, o motor e a aviónica foron mellorados progresivamente.