post_upgrade() {
if [ "$(vercmp $2 1.60-16)" -lt 0 ]; then
echo "hostname and {,yp,nis}domainname has moved:"
echo "----------"
echo "hostname is now in coreutils"
echo "domainname is now in yp-tools"
echo "their functionality might have changed slightly"
echo ""
echo "dnsdomainname remains in net-tools"
echo "----------"
fi
}