Alright, let me drop a couple of questions I have so far after looking at the docs and tinkering with the API, hope that's ok! - Is there general guidance for schema evolution in a production system? - Are lookup / expand operations paginable? - Just to check if I got it right: the reverse of "Lookup" semantics can be done with "Expand"? Is it expected the response tree needs to be traversed by the client application? I'm looking at the convenience of the Lookup response - Write API allows adding and deleting relationships, in bulk, and conditionally. When would one want to use the Delete API?