API Gateway supports the creation of new API versions from the existing versions. The new API has the same metadata but with an updated version. The version can either be a number or a string.

The API details page has a drop-down list that displays all the existing API versions. You can create a new version of an API and retain applications that are associated with older versions of the API. When an API is updated, it retains the Expose to consumers settings, the existing scope definitions, the configured policies, and the REST-enabled path configurations for SOAP API.