Hei, I am still trying to upgrade to 2.2.0RC4 with the koha.upgrade script but it seems that there are several things not working. I will try to present some of the things I have noticed: 1. Wrong version number "WELCOME TO THE KOHA UPGRADER You are attempting to upgrade from Koha 2.2.0RC4 to ." The version number is wrong. "2.2.0RC4" should be after "to" and before should be the old version number. I think the problem is in line 17 of the updater skript, because you take the kohaversion from 'cat koha.version' and this file is in the RC4 source folder, so it is the new version number, but it is used in line 26 as first argument and 'newversion' seems to be empty. I think in line 17 it should be "newversion" and you need to take the old version number from the config file, but in my koha.conf the version number is empty. *hmmmmm* 2. Under "INSTALLING FILES" at the end of the copying I get this message: "Use of uninitialized value in concatenation (.) or string at Install.pm line 1655." Well, I am not sure what is the problem there and if this is related with my last problem. 3. "MARC FIELD DEFINITIONS" I am choosing the default "Marc21" and then I get this message: ERROR 1045: Access denied for user: 'bibliotek@localhost' (Using password: NO) User and host names are right, but there should be a password. In the koha.conf is the password, but I don't know why it is not used. Sorry, I cannot give so much help with Perl at the moment. I have just worked once short with Perl quite some time ago, but not really much and I think it will take some time before I get in it. Regards, Klaus -- take care! xo,klaus