According to the AIA, the 2017 document set simplifies the payment provisions found in the older documents.  In order to simplify the payment provisions, the AIA merely reorganized the items to be listed in a payment application such that those that are to be included in the payment applications are listed first, followed by a

The new E204 Sustainable Projects Exhibit addresses the risks and responsibilities unique to projects involving sustainable design and construction. The AIA has taken many of the provisions
found in various AIA contract documents related to sustainable projects and has created a single exhibit. The procedures and terminology related to sustainable projects is identical the former