Home Single-Family News Center ULDD Phase 5 (5.1.0) Specification Release May 20, 2025 ULDD Phase 5 (5.1.0) Specification Release We’re updating the ULDD to provide further guidance on Phase 5 data implementations based on feedback. Download announcement Recent News September 30, 2026 Lender Letter LL-2026-08 Temporary Policy Exception for Lenders Unable to Meet the UAD 3.6 November Mandate September 30, 2026 UAD 3.6 Policy Exception September 29, 2026 Updated UCD v2.0 Specification and Supporting Resources
September 30, 2026 Lender Letter LL-2026-08 Temporary Policy Exception for Lenders Unable to Meet the UAD 3.6 November Mandate
