Hi @matt noyes Thank you for posting your question on Microsoft Q&A and for using Azure services.
Azure PostgreSQL Flexible Server Read-Only Replica is already in **private preview. ** You can take part in early access to new concepts and features. This phase does not include formal support.
You can sign up here if you are only under NDA.
We will inform customers when the product goes in public preview. During this phase we allow any customer to evaluate the new feature. Microsoft Customer Support Services will supply support services during this phase, but normal service level agreements do not apply.
Updates on new features release for PostgreSQL will be posted on Azure updates
Hope that helps
Regards,
Oury