Beanstalk Upgrade or Export?

Hello,

we are currently running a Beanstalk mattermost setup that is 4 months old.
Is there a way to upgrade the Beanstalk app to the most recent mattermost setup without loosing data?

Or can we export the Mattermost Data from Beanstalk and import it into a standard Ubuntu Mattermost setup?

Thanks for your help.