> 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/5.1/5.1.50.md).

# MariaDB 5.1.50 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://askmonty.org/wiki/MariaDB:Download:MariaDB_5.1.50) | **Release Notes** | [Changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-51-series/mariadb-5150-changelog.md) |[Overview of 5.1](/docs/release-notes/community-server/old-releases/5.1/changes-improvements-in-mariadb-5-1.md)

**Release date:** 09 Sep 2010

For a list of every change made in this release, see the [Changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-51-series/mariadb-5150-changelog.md). For a description of this release see the [MariaDB 5.1 overview](/docs/release-notes/community-server/old-releases/5.1/changes-improvements-in-mariadb-5-1.md).

In most respects [MariaDB](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/mariadb/README.md) 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 previous [release notes](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/release-notes/README.md) and [changelogs](/docs/release-notes/connectors/odbc/changelogs.md), the main differences between MariaDB and MySQL are:

## Includes MySQL 5.1.50

For [MariaDB 5.1.50](/docs/release-notes/community-server/old-releases/5.1/5.1.50.md) we have merged in all of the upstream changes from MySQL\
5.1.49. The MySQL [5.1.50](https://dev.mysql.com/doc/refman/5.1/en/news-5-1-50.html) release notes have details of what changes were made upstream by MySQL since 5.1.49.

## Includes [XtraDB](/docs/server/server-usage/storage-engines/innodb.md) 5.1.49-12

We have included XtraDB from Percona Server 5.1.49-12 in this version of\
MariaDB.

## Bug Fixes

Like [previous releases](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/release-notes/README.md), [MariaDB 5.1.50](/docs/release-notes/community-server/old-releases/5.1/5.1.50.md) includes several bug fixes and other improvements. Specific bugs fixed in [MariaDB 5.1.50](/docs/release-notes/community-server/old-releases/5.1/5.1.50.md) include:

* [MySQL Bug #32426](https://bugs.mysql.com/bug.php?id=32426) & [Bug #571200](https://bugs.launchpad.net/bugs/571200) FederatedX corrupt ORDER BY with TEXT
* [Bug #616253](https://bugs.launchpad.net/bugs/616253) Crash in \_ma\_bitmap\_set\_full\_page\_bits on Aria recovery
* [Bug #612894](https://bugs.launchpad.net/bugs/612894) Some aggregate functions (such as MIN MAX) work incorrectly in subqueries after getting NULL value
* [Bug #605798](https://bugs.launchpad.net/bugs/605798) RQG: Table corruption after Maria engine recovery - "Wrong data in bitmap"
* [Bug #613418](https://bugs.launchpad.net/bugs/613418) (M) aria recovery failure: ma\_key\_recover.c:981: \_ma\_apply\_redo\_index: Assertion \`check\_page\_length == page\_length' failed

{% 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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