We are pursuing our first LEED Group project, and wanted to share out what we've learned. We have confirmation from GBCI that LEED BD+C v4 Group projects are still able to swap v4 credits for v4.1 credits, as you would with a standard LEED BD+C project. This can be important to project teams for credits such as Renewable Energy Production, the BPDO Materials credits, and others that may benefits from swapping into v4.1. 

Just wanted to share this so it is searchable in the forum for other users. Thanks!