To upgrade from v0.6 to v0.6.1 simply run the `UPGRADE_v060_to_v061.sql` script with psql from inside a shell enviroment.

`psql -h localhost -p 5432 -U my_user -d my_database -f UPGRADE_060_to_V061.sql`

It will replace all functions and update the `op_id` for `ADD AUDIT_ID` eventy in `table_event_log`. The script should finish with the message _"pgMemento upgrade completed!"_.