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Percona Software for MySQL Documentation

Percona Distribution for MySQL 8.0.35 using Percona XtraDB Cluster (2024-01-17)

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.

This release is focused on the Percona XtraDB Cluster-based deployment variation. It is based on Percona XtraDB Cluster 8.0.35

Release highlights

Improvements and bug fixes provided by Oracle for MySQL 8.0.35 and included in Percona Server for MySQL are the following:

  • Upgraded the linked OpenSSL library to OpenSSL 3.0.10.
  • Removed the printed query string limit to display the characters for a detected deadlock section of the engine status log.
  • Fixed a procession of single-character tokens by an FTS parser plugin.

Deprecations

A future release may remove deprecated variables and options. The usage of these deprecated items may cause a warning. We recommend migrating from deprecated variables and options as soon as possible.

This release deprecates the following variables and options:

  • The binlog_transaction_dependency_tracking server system variable

  • The old and new server system variables

  • The --character-set-client-handshake server variable

  • INFORMATION_SCHEMA.PROCESSLIST

  • The implementation of the SHOW PROCESSLIST command that uses the INFORMATION_SCHEMA.PROCESSLIST table

  • The performance_schema_show_processlist variable

Find the full list of bug fixes and changes in the MySQL 8.0.35 Release Notes.

Supplied components

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 XtraDB Cluster-based variation of the Percona Distribution for MySQL:

Component Version Description
Percona XtraBackup 8.0.35-30 An open-source hot backup utility for MySQL-based servers that doesn’t lock your database during the backup.
HAProxy 2.8.5 A high-availability and load-balancing solution for Percona XtraDB Cluster. This is a default proxy.
ProxySQL 2.5.5 A high performance, high-availability, protocol-aware proxy for MySQL.
Percona Toolkit 3.5.7 The set of scripts to simplify and optimize database operation.
relication_manager.sh 1.0 A tool to manage multi-source replication between multiple Percona XtraDB Cluster clusters.

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