By Torben Hein -Oracle on Apr 23, 2012
The Enterprise Performance Management (EPM) System Cumulative Feature Overview Tool has been updated to include new features for Release 184.108.40.206.
This version covers Enterprise Performance Management System Releases 9.3.1 through 220.127.116.11.
If you are not familiar with this tool: It lists the new features included in any new version and allows to compare versions for features.
So if you are unsure in which version a certain feature was introduced or if you want to know what features will be added by an upgrade, then this is your best source for EPM.
The tool can be found on Doc ID 1092114.1.