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 June 30, 2025 Testing Available for UCD v2.0 Specification and UCD Critical Edits June 18, 2025 Lender Letter LL-2025-02 Advance Notice of Changes to Servicing Processes and Systems June 18, 2025 In Case You Missed It: Policy Updates
