  Sherpa is a general-purpose Monte Carlo event generator for the simulation of
particle collisions in high-energy collider experiments. We summarize essential
features and improvements of the Sherpa 2.2 release series, which is heavily
used for event generation in the analysis and interpretation of LHC Run 1 and
Run 2 data. We highlight a decade of developments towards ever higher precision
in the simulation of particle-collision events.
