We have APIGEE Edge Private Cloud v4.19.01.00 with Drupal.
Currently, the SmartDoc on Drupal portal can import till OpenAPI/ Swagger 1.2.
Is it possible to get an upgrade on the the so that an OpenAPI spec v3 or higher can be imported in SmartDoc?
I’m pretty sure Drupal 8 supports OpenAPI 3, I will check it and update you
Also you can use SwaggerUI for drupal8, this supports OpenAPI3 for sure
-D