During December 2025, this developer enhanced roster accuracy in the rosetta-models/common-domain-model repository by updating the Participants.md documentation to include a newly enrolled participant, aligning the project’s records with ISDA enrollment data. The work focused on improving data integrity for onboarding, reporting, and downstream analytics by ensuring the participant list was current and traceable. Using Markdown for documentation and Git for version control and pull request management, the developer emphasized careful change tracking and data correctness. No bug fixes were required during this period, as the primary contribution centered on documentation updates to support reliable participant data management processes.