  The landscape of high- and ultra-high-energy astrophysics has changed in the
last decade, in large part owing to the inflow of high-quality data collected
by present cosmic-ray, gamma-ray, and neutrino observatories. At the dawn of
the multimessenger era, the interpretation of these observations within a
consistent framework is important to elucidate the open questions in this
field. CRPropa 3.2 is a Monte Carlo code for simulating the propagation of
high-energy particles in the Universe. This new version represents a step
further towards a more complete simulation framework for multimessenger
studies. Some of the new developments include: cosmic-ray acceleration, support
for particle interactions within astrophysical sources, full Monte Carlo
treatment of electromagnetic cascades, improved ensemble-averaged Galactic
propagation, and a number of technical enhancements. Here we present some of
these novel features and some applications to gamma- and cosmic-ray
propagation.
