During June 2025, Matías Buchwald engineered high-availability features and improved developer tooling across the mulesoft/mule and mulesoft/mule-extensions-api repositories. He delivered a zero-downtime LockProvider migration by introducing dual implementations and a CombinedService, enabling rolling upgrades without service interruption. Matías also abstracted locking mechanisms with a new LockProvider interface and enhanced LockFactory, supporting pluggable strategies in Java. He addressed DSL correctness by refining XML element pluralization and map-type handling, ensuring schema alignment and robust code generation. Additionally, he strengthened OAuth authentication flows with improved logging and null-token safety, demonstrating depth in API development, error handling, and system migration.