In March 2026, Juan Menestral developed an API enhancement for the transcend-io/privacy-types repository, focusing on enabling age-gating and richer user preference handling. He introduced an optional birthDate field to the PreferenceUpdateItem, allowing downstream systems to enforce age-based logic and support more granular user preferences. The work included updating documentation to clarify the ISO 8601 date format and specifying where enforcement should occur, ensuring clear integration guidelines. Using TypeScript and JavaScript within a full stack context, Juan aligned the changes with Phase 1 integration requirements, delivering a well-scoped feature that laid essential groundwork without addressing major bug fixes that month.