We added a C#/.NET recipe for the /start endpoint. It demonstrates how to start a transaction with a signed payload using C#/.NET framework. The recipe includes details on how to set up the request, encode and sign the payload, post the request, verify the signature, and decode the payload.

We added error_redirect_url to the /start endpoint public_data object.

We've added a document liveness signal to the /start endpoint, along with a corresponding document liveness response to the get-results endpoint.