  The combination is presented of all inclusive deep inelastic scattering cross
sections previously published by the H1 and ZEUS collaborations at HERA for
neutral and charged current $ep$ scattering for zero beam polarisation. The
data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an
electron beam energy of 27.5 GeV. The data correspond to an integrated
luminosity of about 1 fb$^{-1}$ and span six orders of magnitude in negative
four-momentum-transfer squared, $Q^2$, and Bjorken $x$. The correlations of the
systematic uncertainties were evaluated and taken into account for the
combination. The combined cross sections were input to QCD analyses at leading
order, next-to-leading order and at next-to-next-to-leading order, providing a
new set of parton distribution functions, called HERAPDF2.0. Additionally, the
inclusion of jet-production cross sections made a simultaneous and precise
determination of parton distributions and the strong coupling constant
possible. Brief highlights of the results are presented.
