Version APIs as Compatibility Promises

Version by consumer impact A backend change is not safe because it is small in code. It is safe when existing consumers can continue operating without a coordinated deploy. Additive fields are usually safer than removed fields. New enum values may still break strict clients. Changed meanings are often more dangerous than changed names. Specs make promises visible OpenAPI, contract tests, and changelogs give teams a shared surface to review. They turn hidden assumptions into explicit compatibility questions: who reads this field, who validates this enum, who retries this status code, and who depends on this ordering? Separate labels from…

Sign up free — one personalized lesson every day, matched to your role and goals.

Already have an account? Sign in