Bank of Prairie du Sac selects Finastra's Fusion Phoenix core to improve customer experience and support growth strategy Core upgrade and integrated suite of banking solutions promises to future-proof bank's investment, with technology that can evolve with its changing needs News provided by Share this article Share this article LAKE MARY, Fla., Jan. 6, 2021 /PRNewswire/ -- Finastra today announced that Bank of Prairie du Sac, a community bank outside of Madison, WI, will upgrade its core operating system to Fusion Phoenix to future-proof its technology. The open, modern core built on Microsoft technology, cloud delivery, and seamless integration with other technologies provided by Finastra, will improve the end-customer experience and support the bank's growth strategy, with technology that can evolve with its changing needs.