Herwig++ 2.5 Release Note
  A new release of the Monte Carlo program Herwig++ (version 2.5) is now available. This version comes with a number of improvements including: new next-to-leading order matrix elements, including weak boson pair production; a colour reconnection model; diffractive processes; additional models of physics beyond the Standard Model and new leading-order matrix elements for hadron--hadron and lepton--lepton collisions as well as photon-initiated processes. 
S. Gieseke, D. Grellscheid, K. Hamilton, A. Papaefstathiou, S.   Pl\"atzer, P. Richardson, C. A. R\"ohr, P. Ruzicka, A. Si\'...
hep-ph