Видео с ютуба Openapi Specification 2.0 Vs 3.0

OpenAPI Spec Explained (OpenAPI vs Swagger vs REST)

OpenAPI 3.x Does What Swagger 2.0 Don’t - Arnaud Lauret, Postman

How do you convert from Swagger 2.0 to OpenAPI 3.0?

OpenAPI 3.0: How to Design and Document APIs with the Latest OpenAPI Specification 3.0