The saga continues with Microsoft Dynamics GP 2016 R2 and Year-End Update upgrade: The Database Upgrade
Microsoft Dynamics GP 2016 R2 and Year-End Update upgrade: The Database Upgrade – Microsoft Dynamics GP Community
Install, Upgrade & AdminYear-End & 1099SQL & DataGP 2016
Archived post from 2016. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.