Pruning Red Currants

This weekend I had planned on pruning the red currant, since the birds already ate all of the fruit during my one week vacation. So I wanted to get this task checked off, but it turns out that a red currant bush produce most fruit on 2 and 3 year old shoots. It looks like this particular plant is 2 years old but it produced fruit on one year old shoots. I guess fruits will be produced every year and it’s only necessary to prune if it gets too big. I thought I was supposed to do something every year but now I don’t know. My brain hurts.

How do you handle your red currant bushes?