Glossary entry
API versioning
API versioning is a method of evolving an API without breaking existing clients by running multiple compatible versions in parallel.
Category
Lending technology
Definition
Common approaches
- Version in the URL (e.g.
/v1/) - Version in headers
- Backward-compatible schema evolution
Why it matters in banking integrations
- Supports long-lived integrations with controlled rollout
- Reduces outage risk from breaking changes
- Enables parallel migrations (old and new clients at once)
Related terms
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