Skip to content
Percona Software for MySQL Documentation

For help, click the link below to get free database assistance or contact our experts for personalized support.

Get help from Percona

Percona Server for MySQL 8.4.6-6 (2025-08-)

Get started with Quickstart Guide for Percona Server for MySQL.

Percona Server for MySQL 8.4.6-6 includes all the features and bug fixes available in the MySQL 8.4.6 Community Edition in addition to enterprise-grade features developed by Percona.

Release highlights

Percona Server for MySQL 8.4.6-6

Implements Link-Time Optimization (LTO) to generate more optimized release binaries, resulting in improved performance for specific workloads.

MySQL 8.4.6

Improvements and bug fixes introduced by Oracle for MySQL 8.4.6 and included in Percona Server for MySQL are the following:

  • Fixed an issue where rebuilding a primary key with duplicate entries could cause the server to stop unexpectedly. (Bug #37822992)

  • Fixed an issue related to dropping columns that were part of an index. (Bug #37726881)

  • Fixed an issue with indexing spatial datatype columns. (Bug #36682518)

  • Fixed an issue where creating a secondary index on a VARCHAR column could exceed configured memory limits, with the amount allocated being directly related to the value of innodb_ddl_buffer_size, leading to errors such as ERROR 1136 (21S01): Column count doesn’t match value count at row 1. (Bug #37233273)

Find the complete list of bug fixes and changes in the MySQL 8.4.6 release notes.

Bug Fixes

  • PS-9159: MySQL server exited when running SELECT GLOBAL_TEMPORARY_TABLES during an active Data Definition Language (DDL) operation.

  • PS-9666: MyRocks exited when inserting into a table with unique_checks=OFF and Time to Live (TTL) enabled.

  • PS-9784: Fix for gcc-15 compilation issues.

  • PS-9823: The mysql_migrate_keyring component didn’t work with Percona Server components.

  • PS-9836: Fix for performance regression when using audit_log_filter vs audit_log plugins.

  • PS-9861: Fixed an issue preventing installation of the audit_log_filter plugin when component_keyring_kmip (Fortanix DSM) was enabled.

  • PS-9916: Added logging of an ERROR message when a source waiting for ACKs is stopped.

  • PS-9956: Percona Server exited using Group Replication with the audit_log_filter component enabled.

Platform support

  • Percona Server for MySQL 8.4.6-6 supports Red Hat Enterprise Linux 10.

Additional resources