MySQL Enterprise Backup User's Guide (Version 8.0.17)

5.3 Restoring a Backup with a Database Upgrade or Downgrade

Important

You may encounter technical challenges during a server upgrade or downgrade, and it is beyond the function of MySQL Enterprise Backup, as a backup tool, to ensure a successful server upgrade or downgrade. Users interested in the topic are advised to consult the MySQL server manual, especially the Upgrading MySQL and Downgrading MySQL sections, and pay careful attention to the requirements and restrictions discussed there.

You can facilitate a server upgrade or downgrade by using MySQL Enterprise Backup to make a backup of your server data, restore it to a data directory, and start a different version of MySQL server on the old data. Here are a number of things that users should pay attention to when restoring a backup with a database upgrade or downgrade: