  We analyze the impact of the recent HERA run I+II combination of inclusive
deep inelastic scattering cross-section data on the CT14 global analysis of
PDFs. New PDFs at NLO and NNLO, called CT14$_{\textrm{HERA2}}$, are obtained by
a refit of the CT14 data ensembles, in which the HERA run I combined
measurements are replaced by the new HERA run I+II combination. The CT14
functional parametrization of PDFs is flexible enough to allow good
descriptions of different flavor combinations, so we use the same
parametrization for CT14$_{\textrm{HERA2}}$ but with an additional shape
parameter for describing the strange quark PDF. We find that the HERA I+II data
can be fit reasonably well, and both CT14 and CT14$_{\textrm{HERA2}}$ PDFs can
describe equally well the non-HERA data included in our global analysis.
Because the CT14 and CT14$_{\textrm{HERA2}}$ PDFs agree well within the PDF
errors, we continue to recommend CT14 PDFs for the analysis of LHC Run 2
experiments.
