Lock in API version

[good-idea]

From https://community.shopify.com/c/API-Versioning/Cannot-access-versioned-graphql-API/m-p/641464#M128:

I am able to connect to my shop's Storefront API with the URL:

https://my-shop-name.myshopify.com/api/graphql

But not with a versioned URL, i.e.:

https://my-shop-name.myshopify.com/api/2020-01/graphql
https://my-shop-name.myshopify.com/api/2019-07graphql

I'm using my storefront token in the headers. Am I missing something obvious?

0.6.3 added 2020-01, which broke the sanity plugin. 0.6.6 removes it. But, this API version should be locked in, it changes often and some changes could be breaking. :(