System.Data.SqlClient is Obsolete

Replacing the SqlClient with the new version changed some defaults. Most notably the encryption is now on by default. So you may see an error like this after you start architect, server or any other part of Origam that connects to the db:

Error: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider,
error: 0 - The certificate chain was issued by an authority that is not trusted.)

To fix the problem you have to change the connection string in OrigamSettings.config and either switch the the encryption back off, keep it on and trust the server’s certificate or validate the certificate.
To switch the encryption off:

Ms SQL Server

add Encrypt=False; to the connection string. Look at the documentation for more options.

PostgreSQL

add sslmode=disable; to the connection string. Look at the documentation for more options.