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Do I need a change log and a road map?
Yes to both. The change log is the single most revealing artifact an API provider publishes, and a public road map converts a dependency relationship into a partnership.
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Lifecycle & Change 9
Versioning, deprecation, change logs, road maps, testing, CI/CD — how an API moves through time without breaking people.
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How do I deprecate an API without burning my consumers?
Announce early with a firm date, publish a deprecation policy before you need it, contact affected consumers individually using your own usage data, provide a migration path, and never sunset quietly.
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How fast should we be shipping API changes?
As fast as you can without accumulating debt your consumers pay for. Governance is not the enemy of velocity — ungoverned speed is what eventually stops you shipping at all.
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Should I treat my API as a product?
The discipline is right — an owner, a road map, consumers, a lifecycle. But be honest about whether your leadership actually treats it as one, because "API product" is often a framing nobody above you has bought.
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Should my API definitions live in Git?
Yes. Git is the factory floor of API operations — definitions in version control, changes proposed through pull requests, governance running on every commit, history attributed and timestamped.
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What counts as a breaking change?
Anything that makes a previously working consumer stop working — removing or renaming fields, tightening validation, changing types or defaults, or altering error behavior. Detect it mechanically by diffing the contract.
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What is the API lifecycle?
The full set of stages an API moves through — definition, design, development, deployment, management, documentation, testing, security, discovery, and eventually deprecation. It is the structure everything else in AP...
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What should I be testing in my API?
The contract first — does the live API match its definition — then the unhappy paths. Most API test suites are heavily biased toward the happy path, which is where the fewest bugs live.
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When do I actually need to version my API?
Only when you make a change that breaks existing consumers. Additive changes should ship without a version bump — and versioning is often a coping mechanism for a design or deadline problem upstream.