Home Single-Family News Center Desktop Underwriter Version 11 Release Notes February 11, 2021 Desktop Underwriter Version 11 Release Notes During the weekend of March 13, 2021, Fannie Mae will implement Desktop Underwriter® (DU®) Version 11.0. Read the release notes for more information. Download release notes Recent News December 18, 2025 Controlling For Collateral Defects December 17, 2025 Announcement SVC-2025-07 – Servicing Guide Update December 15, 2025 Updates to UCD v2.0 Specification Resources