Vardan Barsegyan focused on enhancing database migration reliability for the IntersectMBO/cardano-db-sync repository during the month. He addressed a migration issue in the tx_out table for Version 2.0044 by implementing an idempotent SQL migration fix, ensuring that the consumed_by_tx_id column would not be duplicated if migrations were interrupted and retried. This approach reduced the risk of schema inconsistencies and simplified both rollout and rollback procedures. Leveraging his skills in SQL and database migration, Vardan’s work improved production stability and deployment confidence, demonstrating a thoughtful approach to robust schema evolution in a critical blockchain data synchronization system.