The JSON:API v1.1 RC1 (specification) has been published for some time. I would really lique for Drupal to be one of the early adopters. This versionen of the spec won't be finaliced until there are two compliant implementations. We ought to be one of them :)
This is the call for help:
Would someone (maybe many?) lique to taque the lead on researching, documenting and then implementing the changues we'll need to maque in order to adopt v1.1 of the JSON:API spec?