I'm following up on this via this link; https://oraclefact.wordpress.com/2018/04/05/client-server-interoperability-support-matrix-for-different-oracle-versions-doc-id-207303-1/
It would appear a 12.1 client can connect seamlessly to 12.1 and 12.2 versions of the database.
Thus, I presume there's still life in the U7.1 driver?
However, I also remember a post (from 2017 I think) outlining the NEED to use U7.2 against a 12.2 database - but I cannot seem to find that post. I'm pursuing this because we will end up going to a 12.2 database later this year and need to plan the rollout of client software as well as potentially having to upgrade Uniface...
Knut