Rust API Versioning with Axum: Compatibility, Deprecation, and Client Migration

A practical two-hour session on Rust API Versioning with Axum, focused on Compatibility, Deprecation, and Client Migration. Rust is used as the implementation context while the core lesson stays on software engineering fundamentals, reliability, testing, and operational clarity.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Rust API Versioning with Axum
• Apply Compatibility in a small working example
• Apply Deprecation in a small working example
• Apply and Client Migration in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.