How APIs Use Backward Compatibility Testing for Safer Deployments

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How APIs Use Backward Compatibility Testing for Safer Deployments

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In this episode of The API Podcast, Lucas and Luna dive into the often overlooked but critical practice of backward compatibility testing for APIs. Using a concrete example from a major social media platform's API v3 release that broke thousands of integrations in 2025, they explain how automated contract testing with tools like OpenAPI and JSON Schema can catch breaking changes before they hit production. They discuss the difference between additive and breaking changes, how semantic versioning interacts with API design, and why a single mislabeled field can cost partners weeks of rework. They also touch on the challenges of deprecating endpoints gracefully and how Stripe's API versioning model sets a gold standard for the industry. Whether you're building internal microservices or public-facing REST APIs, this episode gives you a practical framework for keeping your consumers happy and your deploys safe. #BackwardCompatibility #APITesting #OpenAPI #JSONSchema #SemanticVersioning #ContractTesting #BreakingChanges #Stripe #APIversioning #Deprecation #TechPodcast #Technology #API #WebDevelopment #FexingoBusiness #BusinessPodcast #SoftwareEngineering #DevOps Keep every episode free: buymeacoffee.com/fexingo

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