  The {\it Fermi} Large Area Telescope (LAT) has been routinely gathering
science data since August 2008, surveying the full sky every three hours. The
first Fermi-LAT catalog of sources detected above 10 GeV (1FHL) relied on three
years of data to characterize the $>$10 GeV sky. The improved acceptance and
point-spread function of the new Pass 8 event reconstruction and classification
together with six years of observations now available allow the detection and
characterization of sources directly above 50 GeV. This closes the gap between
ground-based Cherenkov telescopes, which have excellent sensitivity but small
fields of view and short duty cycles, and all-sky observations at GeV energies
from orbit. In this contribution we present the second catalog of hard
Fermi-LAT sources detected at $>$50\,GeV.
