API Versioning, Deprecation and Backward Compatibility Questions
Evolving an API without breaking existing consumers: versioning strategies (URI, header, media-type), distinguishing breaking from non-breaking changes, deprecation policies and sunset timelines, and coordinating migrations at scale. Covers communicating changes, supporting multiple versions concurrently, and compatibility guarantees across heterogeneous clients.
You manage a stable developer platform with many SDK consumers. Propose an API versioning and deprecation strategy that supports REST and GraphQL consumers, minimizes breakages, communicates deprecation, automates compatibility testing across SDKs, and provides a rollback plan for breaking changes.
Design an organizational policy for API backward-compatibility and deprecation for a platform used by external developers. Include the versioning strategy, deprecation timelines, communication cadence to external developers, migration tooling and support, enforcement mechanisms (e.g., automated tests, gateways), and how you'd secure buy-in from engineering leadership across multiple teams.
A backwards-incompatible API change is proposed while clients use SDKs in multiple languages and upgrade timelines are unknown. As TPM, propose a deprecation and migration plan covering dual-run strategies, SDK update approaches, communication cadence, telemetry to measure migration, and enforcement milestones under uncertainty.
You manage a public developer API with many external customers. Discuss trade-offs between enforcing API stability (strict backward compatibility, long deprecation windows) and allowing rapid iteration with more frequent breaking changes. Propose a policy that balances developer experience, business agility, and engineering velocity, including versioning semantics, deprecation timeline, developer communication and migration tooling.
Design a deprecation policy for APIs where business pressures sometimes require faster deprecation than ideal. Include timelines for normal deprecation and an accelerated path for urgent changes, communication channels (developer portal, email, SDK warnings), automated notice mechanisms, incentives for migration, and mitigation for impacted customers. Provide an example of a fast deprecation scenario and your mitigations.
That is every published API Versioning, Deprecation and Backward Compatibility question for Technical Product Manager so far. Browse the other topics in this category, or practice this one interactively.