Swagger Open Source Tooling Now Supports Latest OpenAPI Specification (OAS) 3.1 Jun 13, 2023 By SmartBear In SmartBear SmartBear continues commitment to widely used OpenAPI Specification and millions of Swagger users worldwide through their open source projects. Read Post SmartBear API Open Source Press Release Testing Read more about Swagger Open Source Tooling Now Supports Latest OpenAPI Specification (OAS) 3.1