Hey there. We have a test instance of Confluence 6.4.1 and a production instance of Confluence 5.8.4 and I would like to regularly update the test instance to have the same content as production. Is it possible to export the database (in our instance postgres) along with the attachments directory from the earlier version and import them into the latest version ? I'm guessing the schema has changed between versions but can we manually run the schema update script to handle this ? Otherwise our test instance is going to get quickly out of date before we can update live. Thanks.