Greetings, > please send *dateutils.pm* file for koha upgrade . You mean Koha::DateUtils? It is included in the koha-common package. The file ./Koha/DateUtils.pm is there from a source-based (git or tarball) install. What method of installation are you using? What OS are you using? What set of install/upgrade instructions are you using? GPML, Mark Tompsett