Client - Server Version Compatibility Questions - Check the Interoperability Guide
If you have a question about client and server version compatibility, this is the best place to start.
This document is updated often to provide up-to-date certification information. It should be one of the
first places to look if planning an upgrade in your enterprise. You'll want to ensure that your Oracle clients are going to
be supported and/or need to be upgraded:
Client / Server Interoperability Support Matrix for Different Oracle Versions (Doc ID 207303.1)