Kelly Youells explores Microsoft Dynamics GP 2013 – Known Upgrade Issues at the Dynamics GP Support and Services Blog
Microsoft Dynamics GP 2013 – Known Upgrade Issues – Dynamics GP Support and Services Blog
Install, Upgrade & AdminMicrosoft & the GP EcosystemGP 2013
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.