Razvan Rotari developed advanced AvroSchema renaming capabilities for the ankane/avro-rs repository, focusing on improving API ergonomics and maintaining backward compatibility. He introduced per-variant enum renaming through a VariantOptions struct and implemented a global rename_all attribute using a dedicated case-matching module. Working primarily in Rust, Razvan leveraged macros and schema definition techniques to ensure consistent naming across fields and variants. He wrote comprehensive tests to validate the new functionality and prevent regressions, aligning documentation with the updated features. This work deepened the codebase’s flexibility and reliability, enhancing the developer experience for users of Avro and code generation tools.