To upgrade the Luminotes database from an earlier version, manually apply each relevant schema delta file within model/delta/ For instance, if you were upgrading from version 5.0.1 to 5.0.4, you would apply the following deltas in order: psql -U luminotes luminotes -f model/delta/5.0.2.sql psql -U luminotes luminotes -f model/delta/5.0.3.sql psql -U luminotes luminotes -f model/delta/5.0.4.sql Any version which does not introduce a schema change does not have a corresponding schema delta file. Sometimes I include comments within a schema delta file with additional manual steps you need to take. After you've updated the schema, run the updatedb.py script: export PYTHONPATH=. python2.4 tools/updatedb.py