> 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/10.3/10.3.10.md).

# MariaDB 10.3.10 Release Notes

The most recent release of [MariaDB 10.3](/docs/release-notes/community-server/old-releases/10.3/what-is-mariadb-103.md) is:[**MariaDB 10.3.39**](/docs/release-notes/community-server/old-releases/10.3/10.3.39.md) Stable (GA) [Download Now](https://downloads.mariadb.org/mariadb/10.3.39/)

[Download](https://downloads.mariadb.org/mariadb/10.3.10) | [Release Notes](/docs/release-notes/community-server/old-releases/10.3/10.3.10.md) | [Changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-10-3-series/mariadb-10310-changelog.md) | [Overview of 10.3](/docs/release-notes/community-server/old-releases/10.3/what-is-mariadb-103.md)

**Release date:** 4 Oct 2018

[MariaDB 10.3](/docs/release-notes/community-server/old-releases/10.3/what-is-mariadb-103.md) is an evolution\
of [MariaDB 10.2](/docs/release-notes/community-server/old-releases/10.2/what-is-mariadb-102.md) with several entirely new features not found anywhere else\
and with backported and reimplemented features from MySQL.

[MariaDB 10.3.10](/docs/release-notes/community-server/old-releases/10.3/10.3.10.md) is a [***Stable (GA)***](/docs/release-notes/community-server/about/release-criteria.md) release.

**For an overview of MariaDB Server 10.3 see the** [**What is MariaDB 10.3?**](/docs/release-notes/community-server/old-releases/10.3/what-is-mariadb-103.md) **page.**

Thanks, and enjoy MariaDB!

## Notable Changes

Notable changes of this release include:

* [MDEV-14474](https://jira.mariadb.org/browse/MDEV-14474) - Added the [Information Schema CHECK\_CONSTRAINTS Table](/docs/server/reference/system-tables/information-schema/information-schema-tables/information-schema-check_constraints-table.md)
* [MDEV-15511](https://jira.mariadb.org/browse/MDEV-15511) - if available, stunnel can be used during [Galera rsync SST](/docs/galera-cluster/galera-management/installation-and-deployment/getting-started-with-mariadb-galera-cluster.md#rsync)
* [MDEV-16934](https://jira.mariadb.org/browse/MDEV-16934) - add new system variable [eq\_range\_index\_dive\_limit](/docs/server/server-management/variables-and-modes/server-system-variables.md#eq_range_index_dive_limit) to speed up queries that new long nested `IN` lists. For backward compatibility the default value is `0`, meaning "unlimited".
* [MDEV-13564](https://jira.mariadb.org/browse/MDEV-13564) - mariadb-backup does not work with TRUNCATE
* [MDEV-15872](https://jira.mariadb.org/browse/MDEV-15872) - Crash in online ALTER TABLE...ADD PRIMARY KEY after instant ADD COLUMN...NULL
* [MDEV-17003](https://jira.mariadb.org/browse/MDEV-17003) - service\_manager\_extend\_timeout() being called too often
* [MDEV-17196](https://jira.mariadb.org/browse/MDEV-17196) - Crash during instant ADD COLUMN with long DEFAULT value
* [MDEV-16328](https://jira.mariadb.org/browse/MDEV-16328) - ALTER TABLE...page\_compression\_level should not rebuild table
* The [Galera library](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/what-is-mariadb-galera-cluster/README.md) in the repositories has been updated to version 25.3.24.
* Also all changes from [MariaDB 10.2.18](/docs/release-notes/community-server/old-releases/10.2/10.2.18.md)
* Fixes for the following [security vulnerabilities](/docs/server/security/cve.md):
  * [CVE-2019-2503](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-2503)

When upgrading from [MariaDB 10.3.8](/docs/release-notes/community-server/old-releases/10.3/10.3.8.md) or earlier to [MariaDB 10.3.9](/docs/release-notes/community-server/old-releases/10.3/10.3.9.md) or higher,\
running [mysql\_upgrade](/docs/server/clients-and-utilities/legacy-clients-and-utilities/mysql_upgrade.md) is **required** due to changes introduced in[MDEV-14637](https://jira.mariadb.org/browse/MDEV-14637).

## Changelog

For a complete list of changes made in [MariaDB 10.3.10](/docs/release-notes/community-server/old-releases/10.3/10.3.10.md), with links to detailed\
information on each push, see the [changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-10-3-series/mariadb-10310-changelog.md).

## Contributors

For a full list of contributors to [MariaDB 10.3.10](/docs/release-notes/community-server/old-releases/10.3/10.3.10.md), see the [MariaDB Foundation release announcement](https://mariadb.org/mariadb-10-3-10-now-available/).

{% 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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