Very good news, ODI 12c (12.1.2) has been released last week. You can download the latest version at http://www.oracle.com/technetwork/middleware/data-integrator/downloads/index.html
See here the list of the main new features: •Declarative Flow-Based User Interface •Reusable Mappings •Multiple Target Support •Step-by-Step Debugger •Runtime Performance Enhancements •Oracle GoldenGate Integration Improvements •Standalone Agent Management with WebLogic Management Framework •Integration with OPSS Enterprise Roles •XML Improvements •Oracle Warehouse Builder Integration •Unique Repository IDs
For the migration tool (OWB 11.2 towards ODI 12c) you’ll have to wait a bit longer for the software release and documentation. Normally Oracle will communicate more news about this migration tool by the end of October 2013.
For the moment existing OWB user are recommended to use ODI 12c essays-buy.com to execute and monitor their OWB jobs within ODI. Migrate all the mappings (good news, now ODI 12c uses “mappings” instead of “interfaces”) once the migration tool has been released. After the migration start developing new ETL in ODI instead of OWB.