OpenAPI v3.1.0

[philsturgeon]

Hello there! I'm making isues for all of the tools we've got listed on www.openapi.tools to see what folks are planning to do about OpenAPI v3.1.0 support. It's got some cool new functionality, like the OpenAPI Schema objects being entirely compatible with JSON Schema now!

Here's an article about the changes for the user perspective, and it sbhould highlight some useful tips for tooling vendors too.

https://www.openapis.org/blog/2021/02/16/migrating-from-openapi-3-0-to-3-1-0

If you get it upgraded please shout out, and I'll update it on openapi.tools.