Feature Flagging to Reduce Risk in Database Migrations

The document discusses feature flagging as a method to mitigate risks during database migrations, detailing various approaches including maintenance windows, zero-downtime, and feature-flagged methods. The feature-flagged approach allows for gradual rollouts and easy rollbacks without downtime, though it requires keeping both old and new databases operational for a longer duration. Examples from the author's experience at LaunchDarkly illustrate the need for careful migration planning and monitoring.