A new version of the FLUIDAPRO 5.2 toolkit is now available for users. This new version includes important improvements in the modelling and simulation of fluid systems (liquid/vapour, two phases) such as: combustors can define the set of chemicals taking part of the combusted gases, volumetric pumps can work with several types of performances maps, new 1D Tank component for the simulation of the temperature stratification inside the liquid and gas parts, new option in Pipe component that permits to simulate draining and blowdown conditions, etc.