API Versioning — Future-Proofing Your Endpoints
Learn how to version your API so you can evolve without breaking existing clients — URL versioning, header versioning, and migration strategies.
Here's a scenario you'll inevitably face: your API is live, real users depend on it, and you need to make a change that would break their code. Maybe you need to rename a field, change the response structure, or remove an endpoint entirely.
You can't just change it and hope for the best. Clients that were working fine would suddenly break. That's a terrible experience — and if those clients are paying customers, it's a business problem too.
API versioning is how you evolve your API while keeping existing clients happy. It's not glamorous. It's not fun. But it's essential for any API that has users.
What Counts as a Breaking Change?
Before we version anything, let's define what we're protecting against. A breaking change is any modification that could cause existing client code
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