When the database schema changes, there is no way to to trigger the schema update as part of the package update transaction.

All distributions out there would benefit from a schema update script to be run in an unattended way.

For example, it would be good if I could run, from the shell on the machine where mantis is running, something like:

php /path/to/mantis/install.php --updateschema

and the script would apply all required schema changes between installed and updated version