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With MySQL 8.0.20 currently installed on Ubuntu, I am unable to use Percona XtraBackup 2.3.7 due to breaking changes introduced in MySQL 8.0.20.
How can we downgrade MySQL 8.0.20 to 8.0.19 on Ubuntu, which I believe is the latest MySQL version currently supported by XtraBackup? dpkg-reconfigure mysql-apt-config does not allow us to select a minor version.
Must the current data be backup using mysqldump before the downgrade, and restored using the dump after the downgrade?
Xtrabackup 8.0.12 should work with MySQL 8.0.20
Percona xtrabackup 8.0.12 release
Percona XtraBackup 8.0.12 now supports backup and restore processing for all versions of MySQL up to and including 8.0.20; previous versions of Percona XtraBackup will not work with MySQL 8.0.20 and higher.
