enum (and other 1.5 functionality)

I have a few questions about jdk1.5 features and intellij.

I totally love the generics functionality (which is way beyond any other
IDE), but I had some questions about other funtionality such as enum etc.

While I can compile enumerations with the new enum keyword, they show up as
errors in the editor.

Now I know I'm probably pushing my luck (I'm actually quite content with the
current functionality)..... but I was wondering which version enum etc would
be added to the editor?????

Thanks,

Kev