The current version of MODS is available both through a version specific URL (http://www.loc.gov/standards/mods/v3/mods-3-3.xsd) as well as a more generic URL (http://www.loc.gov/standards/mods/mods.xsd). Can users count on the more generic URL always pointing to the most recent version of the MODS schema that is backwards compatible through version 3.1? (I believe that there is a break in compatibility between version 3.0 and 3.1). Or, to phrase the question a little differently, if a new version of the MODS schema was produced that was not backwards compatible with versions 3.1-3.3, would it replace the 3.3 schema that is now available via the generic URL http://www.loc.gov/standards/mods/mods.xsd? I am asking this because of its implications for how the schemaLocation in mods instances should be set up. Thanks, Rick Beaubien -- Rick Beaubien Software Engineer, Research and Development U.C. Berkeley Library Contact information: 505-466-6630 88 Herrada Rd Santa Fe, NM 87508