Successful digital businesses unleash the data and business processes encoded in their mainframe-based applications. Ad hoc integrations between systems of engagement and systems of record get them started, but they soon find their ability to define innovative products and services is limited by an inability to evolve and improve their mainframe applications. This report describes how AD&D leaders can utilize DevOps practices to help their company free the business value trapped in mainframe apps and deliver great digital experiences to customers.