Upps,
you are right!!! Instantclient 11 was in my mind, but Steven uses 10! sorry was my fault!!!
You don't need to upgrade your instantclient, but the 11 instantclient support ends in a short time. I changed to the 12 instantclient.
This sentence refered to Instant client 11 but Steve wantetd to information about version 10.
Good eye Fidel!
Best regards
Willi Eimler