During October 2024, Alex H. upgraded serialization dependencies across the facebook/dotslash, facebook/fbthrift, and facebook/relay repositories, focusing on Rust and dependency management. Alex addressed compatibility issues by updating serde and serde_json libraries, ensuring consistent serialization behavior and improved data interchange performance. In fbthrift, Alex resolved configuration challenges introduced by the new library versions, while in relay, the upgrades enhanced serialization and deserialization efficiency. This work reduced technical debt and stabilized cross-repo functionality, aligning all three projects with the latest serialization stack. Alex’s contributions demonstrated a strong grasp of Rust, version control, and software maintenance in a multi-repository environment.