lcbcruz yes you would need to follow the upgrade instructions starting at beta 7. Please note that it's very likely that community extensions you use might have been abandoned or replaced. I also think the skeleton has changed.
A faster solution - but more likely to cause issues would be to install a clean flarum, copy the database and assets files over and do an upgrade. Then install the extensions you had (or their replacement) if they are compatible. You might still encounter issues, depending on what extensions you had.
Above all, always make a backup!
