Is there an audit trail for the HEAT version upgrades?
This information is stored in the HEATINI table in the HEAT database. It can be analyzed by running the following SQL statement to the HEAT database:
SELECT * FROM HEATINI WHERE INISection = 'Upgrade'
The results will list in the INIEntry column what schema the database was upgraded to and the Contents column will show who performed the upgrade and at what date and time.
Unfortunately if the DB was upgraded via a revision in the Administrator module, this information is not recorded.