Only the most recent Efix version of each Teradata JDBC Driver release is supported. The most recent Efix versions are the ones available for download here on Developer Exchange.
In other words, if the version is available here on Developer Exchange, then it's supported. If the version is not available here on Developer Exchange, then it's not supported.
Having said all that, there are rare circumstances in which you need a particular old, unsupported Efix version of the Teradata JDBC Driver. You need to be a customer, or Teradata employee, to get them. They are available on the Teradata Software Server (TSS) patch server.
Only the most recent Efix version of each Teradata JDBC Driver release is supported. The most recent Efix versions are the ones available for download here on Developer Exchange.
In other words, if the version is available here on Developer Exchange, then it's supported. If the version is not available here on Developer Exchange, then it's not supported.
Having said all that, there are rare circumstances in which you need a particular old, unsupported Efix version of the Teradata JDBC Driver. You need to be a customer, or Teradata employee, to get them. They are available on the Teradata Software Server (TSS) patch server.