Dear everyone, I am proud to announce the release of xs 1.0: the next generation of yt. xs is a new package, designed from the ground up to take advantage of emerging architectures and to address challenges presented by the next generation of computing hardware. In keeping with this vision, xs facilitates the deployment of complex analysis pipelines as defined at compile time, rather than run time as is common in most yt usage. For more information, including compilation instructions, contribution guidelines, and download information, please see the homepage at: http://dxl.ncsa.illinois.edu/~mturk/xs/ Best wishes, Matt