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Percona XtraDB Cluster 8.4.6-6 has been released

Percona XtraDB Cluster 8.4.6-6 has been released on Monday, October 06, 2025.

Try it out using the Quickstart guide.

This release is based on Percona Server for MySQL 8.4.6-6.

Percona XtraDB Cluster 8.4.6-6

Improves State Snapshot Transfer (SST) by retrying Incremental State Transfer (IST) when initial SST attempts fail before any data changes, preventing unnecessary full data transfers.

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

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.

Build & packaging notes

  • The official packages were built with the WITH_LTO=ON flag to enable the Link-Time Optimization (LTO) feature.

  • This release adds support for Red Hat Enterprise Linux 10.

Learn more in Percona XtraDB Cluster 8.4.6-6 release notes.