Galera Cluster consists of two parts: the Galera Replication Library (galera-3) and a version of MySQL extended with the Write Set Replication (WSREP) API (mysql-wsrep).
Galera Cluster is available as targeted packages and package repositories for a number of Linux distributions, including Ubuntu, Red Hat, Debian, CentOS, OpenSUSE and SLES, as well as FreeBSD. Obtaining packages using a package repository eliminates the need to download individual files and facilitates the deployment and upgrade of Galera nodes. For more information about installing Galera Server from the package repository click here.
This is the most recent stable release of Galera Cluster for MySQL, which includes MySQL versions 5.5.62, 5.6.47, and 5.7.29, released on January 29, 2020. It also includes version 3.29 of the Galera Replication Library, released on the same day. Please note that Galera Cluster 5.5.62 will be the last release of the 5.5 series.
Galera 3 Replication Library
Galera 3 Replication Library, Version 25.3.29
MySQL 5.5 Server Extended with Write Set Replication API
MySQL 5.5.62 with wsrep Patch Version 25.25
MySQL 5.6 Server Extended with Write Set Replication API
MySQL 5.6.47 with wsrep Patch Version 25.29
MySQL 5.7 Server Extended with Write Set Replication API
MySQL 5.7.29 with wsrep Patch Version 25.21
Galera 4 Stable Release
This is the newest release of Galera Cluster 4 for MySQL, which consists of MySQL 8.0.19. It also includes the Galera Replication Library 4.5 and wsrep API version 26, both released on May 21, 2020.
Galera 4 Replication Library
Galera 4 Replication Library, Version 26.4.5
MySQL 8.0 Server Extended with Write Set Replication API
MySQL 8.0.19 with wsrep Patch Version 26.3
Galera distribution includes a brief documentation that’s mostly an overview of the software. For more detailed documentation, see the Codership Documentation.
MariaDB Galera Cluster integrates Galera replication to provide a clustered version of MariaDB, an enhanced, drop-in replacement for MySQL developed by the MariaDB Foundation.