Latest releases:
DEB/RPM packages can be downloaded from Github Releases
Older releases:
How to check sigs and hashes:
sha512sum --check ${IMPALA_TARBALL}.sha
shasum --check ${IMPALA_TARBALL}.sha
gpg --import KEYS
. Finally,
run gpg --verify ${IMPALA_TARBALL}.asc ${IMPALA_TARBALL}