Hydrogen envelope mass at the end of the mass-transfer phase (Roche-lobe detachment) for the basic stars (purple circles), for the stars with diffusion only (orange stars) and for the stars with diffusion+rotation (blue squares) for Z = 0.02 (top panel), Z = 0.01 (second panel), Z = 0.001 (third panel) and Z = 0.0002 (bottom panel) as a function of proto-WD mass. The grey shaded area denotes the stars that undergo a temporary Roche-lobe detachment (see text for details).