To upgrade from Infoworks Replicator 3.3.4 to 4.0.0, execute the following command:
wget https://infoworks-setup.s3.amazonaws.com/4.0/update.sh
source $IW_HOME/bin/env.sh
./update.sh 4.0.0-<distro>
<distro>
with rhel7<distro>
with hdp-rhel7<distro>
with ubuntu1804<distro>
with hdp-ubuntu1804