During the development phase of a newer version, full version control is implemented. Regular backups of software versions and the database are created.

In case of the requested changes in a new version trigger changes to the database structure, the following delivery, installation and acceptance, reverting to an older version with an older database structure is not recommended because it could result in some degree of data loss. Instead, any work performed in the newer version would be incompatible with the previous database structure. If changes to the new version did not include changes to the database structure, then a full roll-back to a previous version is possible.