We’re a little more than a month away from the release of GP 2018, and from Mahmood M. Alsaadi:
Dynamics GP Essentials: System Requirements for Dynamics GP 2018
Dynamics GP Essentials: System Requirements for Dynamics GP 2018
Install, Upgrade & AdminGP 2018
Archived post from 2017. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.