Is XStream still active/supported?

Does anyone know if XStream is still active/supported?

It looks relevant to what we are trying to do, but it appears there have been no new releases or web site updates (at http://x-str开发者_如何转开发eam.github.io/) for almost two years (since Dec 2008), therefore I was a bit suspicious ... wanted to check if this component is still in active use, or if there is something which has superseded it.

Thanks.