Downgrade Percona Server for MySQL¶
A downgrade from Percona Server for MySQL 8.0 to 5.7 is not supported.
A downgrade from a Percona Server for MySQL 8.0 version to an earlier 8.0 version is not supported.
Percona does not test a downgrade operation between versions.
Each release of Percona Server for MySQL 8.0 can contain significant changes that are not backward-compatible. Restoring a backup to an earlier version may fail, for example, if your code uses a feature that does not exist in an earlier version.
Before you upgrade to the latest release, do the following:
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Make a full backup of your data and test the backup
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Thoroughly test in a staging environment
MySQL 8 Minor Version Upgrades Are ONE-WAY Only
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To report bugs or submit feature requests, open a JIRA ticket.
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