  We present a new set of stellar yields obtained from rotating stellar models
at solar metallicity covering the massive star range (9-120 solar masses). The
stellar models were calculated with the latest version of the Geneva stellar
evolution code described in Hirschi et al 2004a. The contributions from stellar
winds and from supernova explosions to the stellar yields were calculated
separately. The two contributions were then added to compute the total stellar
yields (Hirschi et al 2004b).
  The effects of rotation on pre-supernova models are significant between 15
and 30 solar masses. Above 20 solar masses, rotation may change the radius or
colour of the supernova progenitors (blue instead of red supergiant) and the
supernova type (IIb or Ib instead of II). Rotation increases the helium and CO
core sizes by a factor about 1.5. Thus, rotation increases the total metallic
yields and in particular the yields for carbon and oxygen by a factor 1.5-2.5.
  For Wolf-Rayet stars (M>30 solar masses), rotation increases the yields of
helium and other hydrogen burning products but does not significantly affect
the yields of heavy elements.
