# MariaDB Galera Cluster 5.5.56 Release Notes

The most recent [MariaDB Galera Cluster 5.5](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/galera/README.md) release is:[**MariaDB Galera Cluster 5.5.63**](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/old-releases/mariadb-galera-cluster-releases/mariadb-galera-55-release-notes/mariadb-galera-cluster-5563-release-notes) [Download Now](https://downloads.mariadb.org/mariadb-galera/5.5.63)

[Download](https://downloads.mariadb.org/mariadb-galera/5.5.56)[Release Notes](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/old-releases/mariadb-galera-cluster-releases/mariadb-galera-55-release-notes/mariadb-galera-cluster-5556-release-notes)[Changelog](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/old-releases/mariadb-galera-cluster-releases/mariadb-galera-55-changelogs/mariadb-galera-cluster-5556-changelog)[Overview of MariaDB Galera Cluster](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/what-is-mariadb-galera-cluster/README.md)

**Release date:** 3 May 2017

MariaDB Galera Cluster 5.5.56 is a [***Stable***](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/about/release-criteria) (GA)\
release. It is a merge of [MariaDB 5.5.56](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/old-releases/release-notes-mariadb-5-5-series/mariadb-5556-release-notes) and [Galera Cluster](https://codership.com/content/using-galera-cluster) with\
additional bug fixes.

Various articles about MariaDB Galera Cluster, including [known limitations](https://app.gitbook.com/s/3VYeeVGUV4AMqrA3zwy7/reference/mariadb-galera-cluster-known-limitations) and [how to get started](https://app.gitbook.com/s/3VYeeVGUV4AMqrA3zwy7/galera-management/installation-and-deployment/getting-started-with-mariadb-galera-cluster) are\
available in the [**Galera**](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/galera/README.md) section of the documentation.

## Updates and fixes in this version

* This release is a bug-fix release.
* Codership changes:[github.com/codership/mysql-wsrep/tree/5.5](https://github.com/codership/mysql-wsrep/tree/5.5)\
  (till commit `9949137`)
* The [Galera library](https://codership.com/content/using-galera-cluster) used\
  by MariaDB Galera Cluster and included in the MariaDB repositories is\
  currently at version 25.3.20.
* Fixes for the following [security vulnerabilities](https://app.gitbook.com/s/SsmexDFPv2xG2OTyO5yV/security/securing-mariadb/security):
  * CVE-\`-\`\`\`

See the [MariaDB 5.5.56 Release Notes](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/old-releases/release-notes-mariadb-5-5-series/mariadb-5556-release-notes) for more\
information on fixes in this version.

## Changelog

A full list of all changes is in the [MariaDB Galera Cluster 5.5.56 Changelog](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/old-releases/mariadb-galera-cluster-releases/mariadb-galera-55-changelogs/mariadb-galera-cluster-5556-changelog)\
and the [MariaDB 5.5.56 Changelog](https://gitbook-v2-q3lwp8faq-gitbook.vercel.app/url/mariadb.com/docs/release-notes/community-server/changelogs/changelogs-mariadb-55-series/mariadb-5556-changelog).

## Notes

* Running MariaDB Galera Cluster 5.5 and 10.0 nodes in a cluster is not\
  supported ([MDEV-6257](https://jira.mariadb.org/browse/MDEV-6257))
* This version of MariaDB Galera Cluster supports `wsrep` API v25 which means\
  MariaDB Galera Cluster can be used with either a 25.2.x or 25.3.x

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MariaDB may already be included in your favorite OS distribution. More information can be found on the [Distributions which Include MariaDB](https://app.gitbook.com/s/WCInJQ9cmGjq1lsTG91E/distributions-including-mariadb) page.
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