In April 2025, delivered a focused feature for ankane/avro-rs that enhances Avro header handling and header construction. Introduced support for different Avro header types, including Rabin fingerprint and Glue schema UUID headers, and refactored header building into a trait with concrete implementations to standardize how messages are identified and processed. This lays groundwork for improved interoperability with diverse producers and downstream systems, boosts reliability of message routing, and improves future extensibility. While there were no major bugs fixed this month in this repo, the changes improve maintainability and future-proofing of Avro message handling. Technologies used include Rust, trait-based design, and modular refactoring to enable easier testing and extension.