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| 1 | +# Percona Distribution for MySQL 8.0.44 using Percona Server for MySQL (2025-11-27) |
| 2 | + |
| 3 | +Percona Distribution for MySQL is the most stable, scalable, and secure open source MySQL distribution, with two download options: one based on Percona Server for MySQL and one based on Percona XtraDB Cluster. [Install Percona Distribution for MySQL](installing.md). |
| 4 | + |
| 5 | +This release is based on [Percona Server for MySQL 8.0.44-35](https://docs.percona.com/percona-server/8.0/release-notes/8.0.44-35.html) that includes all the features and bug fixes available in the [MySQL 8.0.44 Community Edition](https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-44.html) and enterprise-grade features developed by Percona. |
| 6 | + |
| 7 | +## Release highlights |
| 8 | + |
| 9 | +### Percona Server for MySQL 8.0.44-35 |
| 10 | + |
| 11 | +Announcement – Discontinuation of the Percona PRO Program |
| 12 | + |
| 13 | +Percona has consolidated its build offerings. The Pro builds are no longer required, and all features have been merged into the main open source Community release. |
| 14 | + |
| 15 | +### MySQL 8.0.44 |
| 16 | + |
| 17 | +Improvements and bug fixes provided by Oracle for MySQL 8.0.44 and included in Percona Server for MySQL are the following: |
| 18 | + |
| 19 | +* Fixed an issue where parallel scan thread creation could fail, causing assertion failures when falling back to single-thread mode. (Bug #38325137) |
| 20 | + |
| 21 | +* Fixed an issue where virtual index rollback could fail on 32-bit builds of MySQL Server under certain circumstances. (Bug #38167527) |
| 22 | + |
| 23 | +* Fixed an issue where very large buffer pools could require excessive memory chunks per instance, potentially causing allocation failures. The allocation is now validated to ensure proper memory allocation. (Bug #37994397) |
| 24 | + |
| 25 | +* Fixed an issue where assertion failures could occur due to data size and bounds mismatches during DDL file operations. (Bug #37882398) |
| 26 | + |
| 27 | +* Fixed an issue related to modifying the internal Full-Text Search (FTS) configuration. (Bug #37792010) |
| 28 | + |
| 29 | +* Fixed an issue related to virtual indexes. (Bug #37602657) |
| 30 | + |
| 31 | +* Fixed an issue where confusing warning messages could appear when row sizes exceeded maximum allowed limits with `innodb_strict_mode=OFF`, such as during table selection or column dropping operations. Error messages have been improved for clarity. (Bug #37003342, Bug #36768046, Bug #36867372) |
| 32 | + |
| 33 | +Find the complete list of bug fixes and changes in the [MySQL 8.0.44 Release Notes](https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-44.html). |
| 34 | + |
| 35 | +## Build & packaging notes |
| 36 | + |
| 37 | +Amazon Linux 2023 is not supported in Percona Distribution for MySQL. We do support Amazon Linux 2023 in Percona Server for MySQL and Percona XtraBackup. Find more information in [Percona Release Lifecycle Overview](https://www.percona.com/services/policies/percona-software-support-lifecycle). |
| 38 | + |
| 39 | +## Supplied components |
| 40 | + |
| 41 | +Review each component’s release notes for What’s new, improvements, or bug fixes. The following is a list of the components supplied with the Percona Server for MySQL-based variation of the Percona Distribution for MySQL: |
| 42 | + |
| 43 | +| Component | Version | Description | |
| 44 | +| ------------------- | --------- | -------------------------------------------| |
| 45 | +| Orchestrator | [3.2.6-19](https://github.com/percona/orchestrator/releases/tag/v3.2.6-19) | The replication topology manager for Percona Server for MySQL| |
| 46 | +| ProxySQL | [2.7.3](https://docs.percona.com/proxysql/2.7.3.html) | A high performance, high-availability, protocol-aware proxy for MySQL| |
| 47 | +| Percona XtraBackup | [8.0.35-34](https://docs.percona.com/percona-xtrabackup/8.0/release-notes/8.0/8.0.35-34.0.html)| An open-source hot backup utility for MySQL-based servers| |
| 48 | +| Percona Toolkit | [3.7.0-2](https://docs.percona.com/percona-toolkit/release_notes.html#v3-7-0-2-released-2025-05-14) | The set of scripts to simplify and optimize database operation| |
| 49 | +| MySQL Shell | [8.0.44](https://dev.mysql.com/doc/relnotes/mysql-shell/8.0/en/news-8-0-44.html) | An advanced client and code editor for MySQL Server| |
| 50 | +| MySQL Router | [8.0.44](https://dev.mysql.com/doc/relnotes/mysql-router/8.0/en/news-8-0-44.html) | Lightweight middleware that provides transparent routing between your application and back-end MySQL servers| |
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