The “SPARQL Update” document has been published as a W3C member submission, co-authored by experts of Hewlett-Packard, Freie Universität, DERI Galway, Oracle, Talis, Garlik, OpenLink, INRIA, Computas, and Semsol. The document describes an update language for RDF graphs. It uses a syntax derived form SPARQL. Update operations are performed on a collection of graphs in a Graph Store. Operations are provided to change existing RDF graphs as well as create and remove graphs with the Graph Store.