Totally awesome to see an update to the plugin. I used the older vs. in the past on a few sites and it worked great.

Had a side question about Varnish.
I just setup a new server and installed xCache. Is varnish used instead of xcache or in addition to it?

sorry for the newb question, I am very new to all of this, but want to get the best possible setup that I can put together. My server is a colo and I am still learning about all of this stuff as I go.

I can say that I am absolutely going to use the new super cache on the wp sites on this new server.