...
- Create a PROD db (you probably already are using one)
- Create a TEST db (in most cases the backup of your PROD db, see next step 3)
- Backup your PROD db and restore it into the TEST db
- Install the latest Docu Performer Release on the TEST db.
- If those tests been successful you can update your PROD db with the latest Docu Performer update.
- If those tests run unsuccessful, e.g. the DB update fails - you can still continue to work with your PROD db uninterrupted.
...