Oracle DB for Windchill

I am running WC10.0m040 with Oracle 11.2.0.3.

I do have a test copy of WC 10.2m030 running with a new instance of the same Oracle 11.2.0.3 install.

I am looking at doing a WC 11.0 install and was wondering if 11.2.0.4 is really required or can it run with Oracle 11.2.0.3?

If I do an Oracle update, it will be to 12.1.0.2 for WC 11.0.