Introducing Apache Fory™ Rust: A Versatile Serialization Framework for the Modern Age
October 29, 2025 · 12 min read
Shawn Yang
Shawn Yang
Apache Fory PMC Chair

TL;DR: Apache Fory Rust is a blazingly-fast, cross-language serialization framework that delivers ultra-fast serialization performance while automatically handling circular references, trait objects, and schema evolution. Built with Rust's safety guarantees and zero-copy techniques, it's designed for developers who refuse to compromise between performance and developer experience.

Token-Oriented Object Notation (TOON)

Token-Oriented Object Notation is a compact, human-readable format designed for passing structured data to Large Language Models with significantly reduced token usage. It's intended for LLM input, not output.

TOON's sweet spot is uniform complex objects – multiple fields per row, same structure across items. It borrows YAML's indentation-based structure for nested objects and CSV's tabular format for uniform data rows, then optimizes both for token efficiency in LLM contexts.