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Percona XtraBackup 8.4.0-6 has been released

Percona XtraBackup 8.4.0-6 has been released on Wednesday, June 24, 2026.

Try it out using the Quickstart guide.

Release highlights

Percona XtraBackup 8.4.0-6 release includes new features, improvements and bug fixes.

  • Percona XtraBackup introduces the --check-tables option to validate the structural integrity of InnoDB B-tree indexes during the --prepare phase. Validation during --prepare helps detect corrupted indexes before restore or production deployment.

  • Percona XtraBackup introduces backup size reporting for successful backups. Percona XtraBackup now records backup size in xtrabackup_info and reports the same information in the XtraBackup error log. Backup size reporting helps estimate storage requirements, check that backups work correctly, and plan restores for compressed and streamed backups.

  • Percona XtraBackup adds support for Azure Storage accounts with Hierarchical Namespace (HNS) enabled in xbcloud delete. Percona XtraBackup now correctly removes backups from Azure Data Lake Storage Gen2 environments where deletion previously failed due to unsupported HNS behavior.

  • Percona XtraBackup improves --copy-back and --move-back handling for backups created from servers with non-default InnoDB configuration paths. Percona XtraBackup now automatically processes configuration values stored in backup-my.cnf, avoiding restore failures caused by custom innodb_data_file_path and related settings.

  • Percona XtraBackup improves sparse file handling efficiency by removing redundant fallocate(PUNCH_HOLE) calls from local_write_sparse.

  • Percona XtraBackup improves incremental backup speed for instances containing around one million tables, reducing the time required for incremental backups to complete.

Packaging notes

  • Percona XtraBackup 8.4 adds support for Ubuntu 26.04.

We recommend downloading Percona XtraBackup for the same platform as your MySQL-compatible server. For example, if your server runs on an ARM64 platform, download the Percona XtraBackup version for ARM64.

Learn more in Percona XtraBackup 8.4.0-6 release notes.