ok, still using v1, upgrade???

 From:  Fitz (3DARTZ)
4380.1 
Hi guys, Im still using v1 and am looking to upgrade. would it make sense to upgrade to the current version now and then again when v3(?) comes out, or whateve is after this current version?
or just wait till the latest version release comes out, which I think is sometime soon?
thanks
Mike Fitz