  In this talk, I present the brand new results from the H1 and ZEUS
Collaborations on the combination of all previously published inclusive deep
inelastic cross sections at HERA for neutral and charged current $e^\pm p$
scattering for zero beam polarisation and the corresponding parton
distributions functions, HERAPDF 2.0, at up to next-to-next-to-leading order
(NNLO). The results also include a new precise determination at next-to-leading
order (NLO) of the strong coupling constant $\alpha_s(M^2_Z)=0.1184\pm 0.0016$
(excluding scale uncertainties) based on a simultaneous fit to the combined
inclusive cross section data and jet production data.
