Wim de Blauwe developed an automated upgrade path for the error-handling-spring-boot-starter within the openrewrite/rewrite-spring repository, targeting compatibility with Spring Boot 4. He approached the task by carefully reordering dependency upgrade steps, ensuring build stability and seamless integration with existing upgrade flows. Using Java, Spring Boot, and YAML for dependency management, Wim’s work reduced manual intervention for users and improved the reliability of migrations. He collaborated with Tim te Beek to co-author the changes, linking them to relevant issues and pull requests for traceability. The feature addressed a clear migration need, demonstrating thoughtful engineering and attention to upgrade sequencing.