How do we test out Terraform 0.12b-beta releases?

#1

If I want to test terraform 0.12-beta, it seems like I need to also update the terraform providers for compatibility.

Error: Failed to instantiate provider "aws" to obtain schema: Incompatible API version with plugin. Plugin version: 4, Client versions: [5]

How do I get providers built against it?

#2

@loren referred me to how one of their guys did it. He wrote up how they did it here…