JDBC Adapter Migration from 6.5 to 9.x

Hi,

does anyone have already gathered some experience in migrating JDBC Adapter from 6.5 to 9.0 or 9.10?

Is it possible to do this in one step (directly from 6.5 to 9.10) or does this require two steps (6.5 to 9.0 to 9.10)?

Connections will be created from scratch, services will be migrated using the script provided by JDBC Adapter.

Regards,
Holger