Version 3.0
The version 3.0 is the first non-draft version of the Credentials API specification.
It includes breaking changes in three messages: submit-terms, request-attestation, and submit-credential. You’d want to use the SDK version 0.29 or higher.
The dApp now also must announce the version of the specification it adheres to. This should help extensions with backwards compatibility. Here is one example of implementing it.