> 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/community-server/old-releases/5.1/5.1.39.md).

# MariaDB 5.1.39 Release Notes

The most recent release in the [MariaDB 5.1 series](/docs/release-notes/community-server/old-releases/5.1/changes-improvements-in-mariadb-5-1.md) is:[**MariaDB 5.1.67**](/docs/release-notes/community-server/old-releases/5.1/5.1.67.md)

[Download](https://archive.mariadb.org/mariadb-5.1.39/) | **Release Notes** | [Changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-51-series/mariadb-5139-changelog.md) |[Overview of 5.1](/docs/release-notes/community-server/old-releases/5.1/changes-improvements-in-mariadb-5-1.md)

**Release date:** 15 Nov 2009

See the [MariaDB versus MySQL](https://mariadb.com/docs/release-notes/compatibility-and-differences/mariadb-vs-mysql-compatibility) page for a high-level overview of the differences between MariaDB and MySQL.

[MariaDB](https://mariadb.com/docs/server/) 5.1.39 Beta is based on [MySQL](https://www.mysql.com/) 5.1.39 and [XtraDB](https://www.percona.com/docs/wiki/percona-xtradb:start) 1.0.3-8.

MariaDB is kept up to date with the latest MySQL release from the same branch.

In most respects MariaDB will work exactly as MySQL; all commands, interfaces, libraries and APIs that exist in MySQL also exist in MariaDB.

In addition to the differences noted in the [MariaDB 5.1.38 Release Notes](/docs/release-notes/community-server/old-releases/5.1/5.1.38.md), the main differences between MariaDB and MySQL are:

### Includes MySQL 5.1.39

For [MariaDB 5.1.39](/docs/release-notes/community-server/old-releases/5.1/5.1.39.md) we have merged in all of the upstream changes from MySQL\
5.1.39. The [MySQL 5.1.39 release notes](https://dev.mysql.com/doc/refman/5.1/en/news-5-1-39.html) have details of what changes were made upstream by MySQL since 5.1.38.

### Includes XtraDB 1.0.3-8

We have included XtraDB 1.0.3-8 in this version of MariaDB. The [XtraDB 1.0.3-8 release notes](https://www.percona.com/docs/wiki/percona-xtradb:info:xtradb_changelog#release_1.0.3-8) have details of the changes made to XtraDB since version 1.0.3-6 (the version included with [MariaDB 5.1.38](/docs/release-notes/community-server/old-releases/5.1/5.1.38.md)).

### FederatedX storage engine is included

The FederatedX storage engine replaces the old, not maintained, Federated storage engine.

See also: [FederatedX storage engine](/docs/server/server-usage/storage-engines/federatedx-storage-engine.md)

### Fewer warnings and bugs

Various changes were made in [MariaDB 5.1.39](/docs/release-notes/community-server/old-releases/5.1/5.1.39.md) in our desire to fix warnings and eliminate bugs. These included removing invalid tests, removing unused declarations, cleaning up the codebase where appropriate, and so on.

### Test Suite improvements

For [MariaDB 5.1.39](/docs/release-notes/community-server/old-releases/5.1/5.1.39.md) we have continued our work on improving the test suite. One thing we did was remove unnecessary and confusing 'skipped' messages from mysql-test-run.pl. In mysql-test-run.pl, we auto-generate combinations of replication tests. But this sometimes generates combinations that are meaningless, like running a test that requires row-based replication with statement-based. These superfluous combinations should not be reported as skipped, they should just be deleted. We do keep skip messages resulting from running mysql-test-run.pl in special ways, eg.\
\--mysqld=--binlog-format=statement.

Another thing we did was to remove the ndb suites from the list of default test suites, as we do not support NDB in MariaDB.

We have also done some work on speeding up the test suite. One way we've done this is to insert\
"`--disable_query_log ; begin ; ... commit; --enable_query_log`" around all while loops that do inserts.

We've also fixed a race condition in the test system by forcing a restart before maria\_showlog\_error to get rid of the status from previous connections.

### Binary tarballs now built on Ubuntu 8.04

For [MariaDB 5.1.39](/docs/release-notes/community-server/old-releases/5.1/5.1.39.md) we switched from using Ubuntu 9.04 and glibc 2.9 for our builds to using Ubuntu 8.04.and glibc 2.7. This should make the binaries more compatible with various Linux systems.

### RPMs for CentOS 5

One benefit of our change to using Ubuntu 8.04 and glibc 2.7 for our builds is that we are now able to create CentOS 5 RPM packages. The [download](https://mariadb.org/download/) page has links to both the individual files and to a CentOS 5 YUM repository.

{% hint style="info" %}
Be notified of new MariaDB Server releases automatically by [subscribing](https://lists.mariadb.org/postorius/lists/announce.lists.mariadb.org/) to the MariaDB Foundation community announce 'at' lists.mariadb.org announcement list (this is a low traffic, announce-only list). MariaDB plc customers will be notified for all new releases, security issues and critical bug fixes for all MariaDB plc products thanks to the Notification Services.

MariaDB may already be included in your favorite OS distribution. More information can be found on the [Distributions which Include MariaDB](/docs/general-resources/distributions-including-mariadb.md) page.
{% endhint %}

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