How to detect and prevent breaking changes in event schemas

There are several approaches to preventing breaking changes in event schemas, including consumer-driven contracts, using schema packages for integration tests, and utilizing a schema registry with broker-side validation. Each method offers unique benefits and potential drawbacks, and they may even be combined for optimal effectiveness. Consumer-driven contracts help enforce expectations at the development stage, sharing event schemas as code libraries simplifies setup, and a schema registry ensures centralized governance and protection against breaking changes.