The OpenAPI Specification (OAS), based on the original Swagger 2.0 specification, has emerged as the world's standard for defining and describing RESTful APIs. Learn more about OpenAPI 3.0 here: https://www.slideshare.net/smartbear_software/openapi-30-and-what-it-means-for-the-future-of-swagger Get started with OpenAPI 3.0 in SwaggerHub for free: https://swaggerhub.com/ The next version of the OAS - version 3.0 - is officially released, and comes with a host of rich, expressive capabilities for your API design and documentation.