Worked on the codescan-io/sonarqube repository to deliver a backward-compatible database migration focused on renaming the default 'Sonar Way' quality gate to 'Sonar Way (legacy)'. The migration was implemented in Java and SQL, featuring idempotent logic and comprehensive safety checks to ensure that existing configurations remained intact and that legacy gates were clearly distinguished from future defaults. This approach minimized disruption for users during upgrades and provided a stable, predictable upgrade path. The work emphasized backend development and database migration best practices, with careful attention to rollback scenarios and documentation to support ongoing maintainability and operational clarity.