I’m not sure what was wrong with my RSS reader (maybe nothing) but the MS team dumped a bunch of daily feature for the upcoming R2 release all at once. I’ll space them out a little but I’d like to get caught up. We can start with Microsoft Dynamics GP 2013 R2 – Known Upgrade Issues
Microsoft Dynamics GP 2013 R2 – Known Upgrade Issues – Dynamics GP Support and Services Blog
Install, Upgrade & AdminMicrosoft & the GP EcosystemGP 2013
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.