APIs can be associated with Catalog services, which replaces the legacy API spec linking. We recommend migrating API specs that are associated with a Catalog service to APIs because this allows API consumers and service owners to see which APIs and services are associated with each other.
Note: After an API spec is migrated to an API, the API spec is unlinked from the integration and will instead be stored as a snapshot by Kong. Since APIs take a snapshot of the API spec when it’s linked, they do not update automatically. For example, if you update your ingested spec in AWS, it doesn’t automatically pull changes in to the API, you must re-upload the spec manually.