During October 2024, Aeh focused on upgrading serialization dependencies across the facebook/dotslash, facebook/fbthrift, and facebook/relay repositories. By updating serde and serde_json libraries, Aeh addressed compatibility issues and improved data interchange performance for downstream consumers. The work involved careful dependency management and software maintenance in Rust, ensuring that configuration and serialization logic remained stable during the transition. These changes reduced risks associated with outdated libraries and established a consistent upgrade path across multiple codebases. Through targeted bug fixes and a feature enhancement, Aeh contributed to more reliable cross-repo collaboration and maintained alignment with the latest Rust serialization ecosystem standards.