Downgrading Percona Server for MySQL 8.0 to 5.7 is not supported. Downgrading from a Percona Server for MySQL 8.0 release to an earlier 8.0 release is not supported.

Each release of Percona Server for MySQL 8.0 can contain significant changes.

Before upgrading to the latest release, do the following:

Make a full backup of your data and test the backup

Thoroughly test in a staging environment

MySQL 8 Minor Version Upgrades Are ONE-WAY Only

For free technical help, visit the Percona Community Forum.

To report bugs or submit feature requests, open a JIRA ticket.

For paid support and managed or consulting services , contact Percona Sales.