> 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/10.2/10.2.18.md).

# MariaDB 10.2.18 Release Notes

The most recent release of [MariaDB 10.2](/docs/release-notes/community-server/old-releases/10.2/what-is-mariadb-102.md) is:[**MariaDB 10.2.44**](/docs/release-notes/community-server/old-releases/10.2/10.2.44.md) Stable (GA) [Download Now](https://downloads.mariadb.org/mariadb/10.2.44/)

[Download](https://downloads.mariadb.org/mariadb/10.2.18) | [Release Notes](/docs/release-notes/community-server/old-releases/10.2/10.2.18.md) | [Changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-102-series/mariadb-10218-changelog.md) | [Overview of 10.2](/docs/release-notes/community-server/old-releases/10.2/what-is-mariadb-102.md)

**Release date:** 25 Sep 2018

[MariaDB 10.2](/docs/release-notes/community-server/old-releases/10.2/what-is-mariadb-102.md) is the previous stable series of MariaDB. It is an evolution of [MariaDB 10.1](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL 5.6 and 5.7.

[MariaDB 10.2.18](/docs/release-notes/community-server/old-releases/10.2/10.2.18.md) is a [***Stable (GA)***](/docs/release-notes/community-server/about/release-criteria.md) release.

**For an overview of** [**MariaDB 10.2**](/docs/release-notes/community-server/old-releases/10.2/what-is-mariadb-102.md) **see the**[**What is MariaDB 10.2?**](/docs/release-notes/community-server/old-releases/10.2/what-is-mariadb-102.md) **page.**

Upgrading from earlier 10.2.x versions earlier than 10.2.17 is **highly recommended** for all **Galera** users due to bug [MDEV-12837](https://jira.mariadb.org/browse/MDEV-12837) which caused serious stability issues with earlier versions. See the bug issue page for more information.

Thanks, and enjoy MariaDB!

## Notable Changes

* [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-15088](https://jira.mariadb.org/browse/MDEV-15088) - Remove debuginfo files from Windows .zip files and put in optional supplemental .zip file
* [MDEV-16791](https://jira.mariadb.org/browse/MDEV-16791) - [mariadb-backup](https://mariadb.com/docs/server/server-usage/backup-and-restore/mariadb-backup): Support DDL commands during backup
* [MDEV-13564](https://jira.mariadb.org/browse/MDEV-13564) - Refuse MLOG\_TRUNCATE in mariadb-backup
* [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. The default value, for backward compatibility, is 0 meaning "unlimited"./25.
* The [Galera library](https://mariadb.com/docs/galera-cluster/) in the repositories has been updated to version 25.3.24.

### Bug Fixes

* [MDEV-13333](https://jira.mariadb.org/browse/MDEV-13333) - errors on InnoDB lock conflict
* Report all InnoDB redo log corruption
* [MDEV-17043](https://jira.mariadb.org/browse/MDEV-17043) - Purge of indexed virtual columns may cause hang on table-rebuilding DDL
* [MDEV-16868](https://jira.mariadb.org/browse/MDEV-16868) - corruption of InnoDB temporary tables
* [MDEV-16465](https://jira.mariadb.org/browse/MDEV-16465) - Invalid (old?) table or database name or hang in ha\_innobase::delete\_table and log semaphore wait upon concurrent DDL with foreign keys
* [MDEV-17026](https://jira.mariadb.org/browse/MDEV-17026) - Assertion srv\_undo\_sources || ... failed on slow shutdown
* [MDEV-10754](https://jira.mariadb.org/browse/MDEV-10754) - wsrep\_sst\_rsync does not support innodb\_data\_home\_dir

### Code Cleanup

* [MDEV-16557](https://jira.mariadb.org/browse/MDEV-16557) - Remove INNOBASE\_SHARE
* [MDEV-16136](https://jira.mariadb.org/browse/MDEV-16136) - Simplify trx\_lock\_t memory management
* 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)
  * [CVE-2021-2174](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2174)

When upgrading from [MariaDB 10.2.16](/docs/release-notes/community-server/old-releases/10.2/10.2.16.md) or earlier to [MariaDB 10.2.17](/docs/release-notes/community-server/old-releases/10.2/10.2.17.md) or higher, running mysql\_upgrade 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 10.2.18](/docs/release-notes/community-server/old-releases/10.2/10.2.18.md) with links to detailed information on each push, see the [changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-102-series/mariadb-10218-changelog.md).

## Contributors

For a full list of contributors to [MariaDB 10.2.18](/docs/release-notes/community-server/old-releases/10.2/10.2.18.md), see the [MariaDB Foundation release announcement](https://mariadb.org/mariadb-10-2-18-and-mariadb-connector-node-js-2-0-0-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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