June 2025 monthly summary for percona/percona-xtradb-cluster. Focus was on stabilizing the MTR suite in response to PXC-3576. Delivered a targeted bug fix that aligns MTR test results with the expected sequence after the fix, reducing flaky tests and accelerating validation for releases. The work includes clear commit traceability and demonstrable improvements in CI reliability.

May 2025 performance summary for percona/percona-xtradb-cluster focused on stabilizing the build, enabling wsrep-lib integration readiness, and advancing Galera upgrade preparedness while preserving data integrity and security. Deliverables laid groundwork for more robust CI/CD, smoother upgrades, and secure clustering.

April 2025 monthly summary: Delivered reliability and usability improvements across Percona XtraBackup and Percona XtraDB Cluster. Implemented robust edge-case handling for legacy backups, improved DDL tracking during backups, and enhanced version detection and error handling in SST. Introduced performance-friendly reduced-lock usability for large backups and ensured CTAS operations on temporary tables do not block queries. Reverted a strict open-file-handle check to align with existing data-dir semantics, preserving stability during high-file-count backups. These changes reduce failure modes, improve cross-version compatibility, and provide safer, scalable backups and recovery.

January 2025 performance highlights across Percona Xtrabackup and Percona Server. Focused on delivering release-prep work for the 9.1 cycle, stabilizing backup workflows, and improving daemonized server reliability. Business value was delivered through upstream-aligned changes, reduced release risk, and stronger runtime stability across critical components.