[946789987649]

If you use something like an OpenAPI generator and want to have different DTOs in your version 2, then you cannot do what you suggested.

[jamietanna]

I've been using OpenAPI for years with multiple versioning types (header based, content negotiation + media type based) and haven't had issues across Java, Typescript or Go with generating the right code for it

[JimDabell]

You can specify multiple media types in OpenAPI.