To upgrade IPM from a previous revision to new IPM 3.4, please install IPM as described in the provided documentation. Then install and run the stored procedure, provided by a single sql script, to make sure that the table structure expected by IPM 3.4 match your current installation. ATTENTION! Please notice that the provided stored procedure will patch existing tables and might therefore harm your installation, including the risk of loosing all submitted. Please make sure that you understand what the script does and start with a full back-up of your IPM database in case you need to recover from an erroneous upgrade.