We published OC4J 10.1.3.5 to OTN this week.
This is a maintenance release, but it has a sprinkling of new features that had been in the works for a while and have now made it into an official OC4J release.
Download location:
http://www.oracle.com/technology/software/products/ias/htdocs/utilsoft.html
Updated Documentation:
http://download.oracle.com/docs/cd/E14101_01/index.htm
Release Notes:
http://download.oracle.com/docs/cd/E14101_01/doc.1013/e15342/oc4j.htm
New Feature List:
http://download.oracle.com/docs/cd/E14101_01/doc.1013/e15342/oc4j.htm#BDCCBAFD
I really like the small set of new features that have been added.
My pick of them, is probably the Peek utility. Peek provides a nice Web based front end for singing and dancing, all powerful, classloading functionality we've had in OC4J 10.1.3.x since its first dot zero release. Peek lets you drive easily around the classloading environment, visualizing the loader tree and letting you to drill down into it to see code-sources, packages, classes, etc. It also lets you execute the wide set of classloader queries we provide, directly from a Web browser. Really neat stuff.
There are also a set of new commands added to the admin_client utility, to support actions such as getting a listing of all deployed applications/web bindings, importing (and removing) shared libraries into applications, and a restart app command. Nice additions.
If you are still using OC4J and haven't yet moved over to the world of WebLogic Server, I reckon checking out OC4J 10.1.3.5 would be worth your time.