Control Tower API

Hope this information helps with your questions

1.) The AWS provider for Terraform is managed by Hashicorp so AWS have little control over when new features might be added here, in this case it appears the provider has at least some support for the ControlTower APIs [1] 2.) if you wish to use these new APIs from the CLI they are fully supported, you can call something like 'aws cli controltower create-landing-zone'' and pass in parameters for --manifest, --landing-zone-version.

[1] https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/controltower_control