> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/release-notes/galera-cluster/mysql-wsrep/5.5/5.5.45-25.12.md). # MySQL-wsrep 5.5.45-25.12 Release Notes Release notes for MySQL-wsrep 5.5.45-25.12, a release of Galera Cluster for MySQL 5.5. Codership is pleased to announce a new release of Galera Cluster for MySQL consisting of MySQL-wsrep 5.5.45 and Galera 3.12, wsrep API version 25. This release incorporates all changes up to MySQL 5.5.45. Galera Cluster is now available as targeted packages and package repositories for a number of Linux distributions, including Ubuntu, Debian, Fedora, CentOS, OpenSUSE and SLES. Obtaining packages using a package repository removes the need to download individual files and facilitates the deployment and upgrade of Galera nodes. This and future releases will be available from , while previous releases remain available on LaunchPad. The source repositories and bug tracking are now on . New features and notable changes in MySQL-wsrep since last binary release by Codership (5.5.42): * The SST password is no longer passed via the command line or visible in the error log or 'ps' output (codership/mysql-wsrep#141) * The xtrabackup SST script has been updated from the upstream source (codership/mysql-wsrep#143) Notable bug fixes in MySQL-wsrep: * In mysqldump SST, the path to my.cnf file is passed to mysqldump, so that mysqldump-related options are read even if the my.cnf file is not in a default location (codership/mysql-wsrep#153) New features and notable changes in MySQL 5.5.43 - 5.5.45: * Security: The key length for creating Diffie-Hellman keys has been increased from 512 to 2,048 bits * MySQL can now compile with OpenSSL 0.9.8e. * Miscellaneous fixes in InnoDB Known issues with this release: * There is a package conflict on CentOS 6/7 which requires manual removal of postfix, mysql and mariadb libraries before installing mysql-wsrep *This page is: Copyright © 2026 MariaDB. All rights reserved.*