  We report an updated version of the ABKM09 NNLO PDF fit, which includes the
most recent HERA collider data on the inclusive cross sections and an improved
treatment of the heavy-quark contribution to deep-inelastic scattering using
advantages of the running-mass definition for the heavy quarks. The ABM11 PDFs
obtained from the updated fit are in a good agreement with the recent LHC data
on the W- and Z-production within the experimental and PDF uncertainties. We
also perform a determination of the strong coupling constant \alpha_s in a
variant of the ABM11 fit insensitive to the influence of the higher twist terms
and find the value of \alpha_s=0.1133(11) which is in good agreement with the
nominal ABM11 one and our earlier determination.
