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Percona Server for MySQL 8.4.2-2 (2024-11-04)

Get started with Quickstart Guide for Percona Server for MySQL.

Percona Server for MySQL 8.4.2-2 includes all the features and bug fixes available in the MySQL 8.4 Community Edition in addition to enterprise-grade features developed by Percona.

Release highlights

Improvements and bug fixes introduced by Oracle for MySQL 8.4.1 and 8.4.2 and included in Percona Server for MySQL are the following:

  • MySQL stopped unexpectedly during an UPDATE after an ALTER TABLE operation.

  • Shutting down the server after an XA START with an empty XA transaction caused it to stop unexpectedly.

  • Shutting down the replication applier or binlog applier during an empty XA transaction caused the system to stop unexpectedly.

  • The result from a spatial index with a column containing a spatial reference identifier (SRID) was empty. Using FORCE INDEX to scan this index caused an assertion error.

  • In some cases, after creating more than 8000 tables, the server failed to restart.

  • Startup tablespace file scanning performance was improved.

Find the complete list of bug fixes and changes in the MySQL 8.4.1 Release Notes and MySQL 8.4.2 Release Notes.

Bug fixes

  • PS-8057: slow_query_log_file does not match the filename defined in my.cnf.

  • PS-9144: Missing rows after running a null ALTER with ALGORTITHM=INPLACE.

  • PS-9214: An ALTER table online results in a “duplicate key” error on the primary key (only index).

  • PS-9306: The following MySQL versions unexpectedly exit if the database has more than 10K tables:

    • 8.0.38

    • 8.4.1

    • 9.0.0

  • PS-9314: Using a JSON_TABLE in Percona Server for MySQL 8.0.36 causes a signal 11 error.

  • PS-9286: The KMIP component left keys in a pre-active state.

  • PS-9384: A race condition between dict_stats_thread and the cost model initialization cause sporadic exits in Jenkins on start up.

Additional resources