I would do it now; it's not going to get easier later.
I personally have had good luck upgrading small apps very easily from 3.2->4.0. The main thing I've run into with larger apps is going from attr_accessible->strong_params, which I realize I could do simply by adding the gem, but I'd rather go whole hog on it.
I personally have had good luck upgrading small apps very easily from 3.2->4.0. The main thing I've run into with larger apps is going from attr_accessible->strong_params, which I realize I could do simply by adding the gem, but I'd rather go whole hog on it.