This release is based on MySQL 5.7.19 and is the current GA (Generally Available) stable release in the 2.4 series.
Starting from now, Percona XtraBackup issue tracking system was moved from launchpad to JIRA. All Percona software is open-source and free.
--encrypt-key-fileoption was failing due to regression in Percona XtraBackup 2.4.9. Bug fixed PXB-518.
--lock-ddl-per-tableoptions caused Percona XtraBackup lock with the backup process never completed. Bug fixed PXB-792.
Other bugs fixed: PXB-513.
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