Software-defined wide-area networking (SD-WAN) technology has revolutionized digital enterprises. Now, the industry stands poised to offer a secure Zero Trust networking future with secure access service edge (SASE), which unifies SD-WAN, secure remote access, and cloud-based security. At this inflection point, Enterprise Management Associates is publishing its third installment in its ongoing biennial research into WAN transformation. This research, based on a survey of 303 enterprise IT professionals, explores the state of WAN transformation amidst an unprecedented business environment introduced by the COVID-19 pandemic. It takes a comprehensive approach at reviewing how enterprises evaluate, implement, and operationalize SD-WAN. It looks at early engagement with SASE and it examines how the pandemic has affected WAN transformation.