Percona Distribution for MySQL 8.0.41 using Percona Server for MySQL (2025-02-26)¶

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 based on Percona Server for MySQL 8.0.41-32 that includes all the features and bug fixes available in the MySQL 8.0.41 Community Edition and enterprise-grade features developed by Percona.

Release highlights¶

Percona Server for MySQL 8.0.41-32¶

Extends the Encryption user-defined functions with the following:
- Added support for pkcs1, oaep, or no padding for RSA encrypt and decrypt operations
- Added support for pkcs1 or pkcs1_pss padding for RSA sign and verify operations
- Added the encryption_udf.legacy_padding_scheme system variable to manage legacy padding schemes
- Added the character set awareness
Improves the Data masking performance by introducing an internal term cache. The new cache speeds up lookups for gen_blocklist() and gen_dictionary() functions by storing dictionary data in memory.

Find more detailed information in the Data masking overview and in the Data masking component functions.

MySQL 8.0.41¶

Improvements and bug fixes provided by Oracle for MySQL 8.0.41 and included in Percona Server for MySQL are the following:

Fixed an assertion in debug builds where certain IO buffer serializations caused system hangs. (Bug #37139618)
Resolved a failure when dropping the primary key and adding a new AUTO_INCREMENT column as the primary key in descending order using the INPLACE algorithm resulted in failure. (Bug #36658450)
Fixed incorrect results, including missing rows, in queries that used a descending primary key with the index_merge optimization. (Bug #106207, Bug #33767814)
Addressed a replication channel issue where MySQL failed to stop the channel properly when large transactions were being processed, and STOP REPLICA was requested. This issue also prevented graceful server shutdown, requiring process termination or system restart. (Bug #115966, Bug #37008345)

Find the complete list of bug fixes and changes in the MySQL 8.0.41 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 Server for MySQL-based variation of the Percona Distribution for MySQL:

Component	Version	Description
Orchestrator	3.2.6-16	The replication topology manager for Percona Server for MySQL
ProxySQL	2.7.1-1	A high performance, high-availability, protocol-aware proxy for MySQL
Percona XtraBackup	8.0.35-32	An open-source hot backup utility for MySQL-based servers
Percona Toolkit	3.7.0	The set of scripts to simplify and optimize database operation
MySQL Shell	8.0.41	An advanced client and code editor for MySQL Server
MySQL Router	8.0.41	Lightweight middleware that provides transparent routing between your application and back-end MySQL servers