During April 2026, this developer enhanced the confluentinc/kafka repository by authoring comprehensive documentation for Kafka Streams, specifically focusing on Dead Letter Queue (DLQ) integration. Leveraging Java and Kafka expertise, they produced a step-by-step guide detailing the implementation of a custom exception handler with built-in DLQ support, fully aligned with KIP-1034. Their work included practical examples and clear instructions, aimed at accelerating developer onboarding and reducing operational incidents. Collaboration with project reviewers ensured technical accuracy and relevance. This contribution improved the clarity and usability of the Streams documentation, providing actionable guidance for teams integrating DLQ functionality into their workflows.