caDSR Release 4.0 completes the process of separating the caCORE APIs. The first caDSR Grid Data Service is deployed with Release 4.0. The caDSR metadata registry, infrastructure and APIs, and tools are enhanced. The caDSR Release 4.0 Highlights wiki page provides a full description. caDSR is a database and a set of APIs and tools to create, edit, control, deploy, and find common data elements (CD