  We present a new, comprehensive global analysis of parton-to-pion
fragmentation functions at next-to-leading order accuracy in QCD. The obtained
results are based on the latest experimental information on single-inclusive
pion production in electron-positron annihilation, lepton-nucleon
deep-inelastic scattering, and proton-proton collisions. An excellent
description of all data sets is achieved, and the remaining uncertainties in
parton-to-pion fragmentation functions are estimated based on the Hessian
method. Extensive comparisons to the results from our previous global analysis
are performed.
