Is there any way to blur the render to target depth output?

I have asked this question some while back with no clear answers then, giving a try again.

I have a typical scene capture 2d going on with the depth being written to a render to target. I would like to know if there is any way to blur this output? The typical fashion would probably be a node or a setup of some sort inside the material editor to blur the output there, but since there is no such node I was hoping if there is a workaround somewhere.
I also tried to change mip values to ‘blur’ but that has no effect either.

you could just sample the texture many times with an offset and just blend them together, but that would only really work for low levels of blur.

Thanks I used the blurSampleoffset node, that helped.