It’s not exactly updated documentation but here are Table and Column Changes in Microsoft Dynamics GP 2016 R2 and Year-End Update
Table and Column Changes in Microsoft Dynamics GP 2016 R2 and Year-End Update – Microsoft Dynamics GP Community
Year-End & 1099SQL & DataMicrosoft & the GP EcosystemGP 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.