API Versioning Strategies: Managing Backward Compatibility and Seamless Upgrades
Compares four API versioning strategies (URL path versioning, query parameter versioning, header versioning, and media type content negotiation) with the trade-offs of each. Recommends URL path versioning as the practical starting point, then covers how to deprecate old versions gracefully using response header warnings, how to introduce breaking changes safely by bumping major version numbers, and how API gateways like AWS API Gateway can route traffic across multiple live versions.