Hi Joseph,
that depends on how new you are, and how far in the deep end you're comfortable jumping.
If you're willing to help on porting the sample application to Axon 3, that'd be great.
Basically what needs to happen is the following:
* update maven dependencies to 3.0-M2
* change aggregates extending AbstractAnnotatedAggregateRoot. Remove extends and statically import the apply method from AggregateLifyCycle.
* Same for AbstractAnnotatedSaga (import lifecycle methods from SagaLiceCycle)
* Replace Spring XML support by Spring JavaConfig
* Define SubscribingEventProcessors for the various components and register the event handlers with them.
The last bullet is probably a bit hard without documentation, but the other should be reasonably 'doable'.
Let me know if you're willing/able to pick any of these tasks...
Cheers,
Allard