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Percona Distribution for MySQL 8.0.41 using Percona XtraDB Cluster has been released

Percona Distribution for MySQL 8.0.41 using Percona XtraDB Cluster has been released on Thursday, March 13, 2025.

Try it out using the Installation guide.

Percona XtraDB Cluster is based on Percona Server for MySQL and contains all improvements and bug fixes available in the Percona Server for MySQL 8.0.41-32 release notes.

Percona XtraDB Cluster 8.0.41-32

Implements the Clone plugin for State Snapshot Transfer (SST) Method. The Clone SST is a modern and efficient method that leverages MySQL's native cloning capabilities to transfer data from a Donor node to a Joiner node. It is faster and more resource-efficient compared to traditional methods like xtrabackup or rsync.

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)

Learn more in Percona Distribution for MySQL 8.0.41 using Percona XtraDB Cluster release notes.