Thanks for your question.
I've resent this question to a responsible person in our Team. As we are an international company, he will start working only in several hours. He will reply to you soon.
we will continue updating the Swagger integration as Swagger evolves.
We will be using the plugin framework in Ready! API and SoapUI to enable quick updates.
For the strategy of Apigee you would have to ask them.
Our recommended solution for handling API Designs is the SwaggerHUB. https://swaggerhub.com/