> 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/11.1/11.1.0.md).

# MariaDB 11.1.0 Release Notes

The most recent release of [MariaDB 11.1](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md) is:[**MariaDB 11.1.6**](/docs/release-notes/community-server/old-releases/11.1/11.1.6.md) Stable (GA) [Download Now](https://downloads.mariadb.org/mariadb/11.1.6/)[*Alternate download from mariadb.org*](https://downloads.mariadb.org/mariadb/11.1.6/)

[Download](https://downloads.mariadb.org/mariadb/11.1.0) | [Release Notes](/docs/release-notes/community-server/old-releases/11.0/11.0.1.md) | [Changelog](/docs/release-notes/community-server/changelogs/11.0/mariadb-11-0-1-changelog.md) | [Overview of 11.1](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md)

**Release date:** 27 Mar 2023

**Do not use *****alpha***** releases in production!**

[MariaDB 11.1](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md) is a current development series of MariaDB, and will be maintained for one year after its Generally Available release. It is an evolution of [MariaDB 11.0](/docs/release-notes/community-server/old-releases/11.0/what-is-mariadb-110.md) with several entirely new features.

[MariaDB 11.1.0](/docs/release-notes/community-server/old-releases/11.1/11.1.0.md) is a single preview release. Features are to be considered preview, and none are guaranteed to make it into [MariaDB 11.1](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md).

The preview is available as a container **quay.io/mariadb-foundation/mariadb-devel:11.1-preview**.

**For an overview of** [**MariaDB 11.1**](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md) **see the**[**What is MariaDB 11.1?**](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md) **page.**

Thanks, and enjoy MariaDB!

## InnoDB

* Remove [innodb\_defragment](/docs/server/server-usage/storage-engines/innodb/innodb-system-variables.md#innodb_defragment) and related parameters ([MDEV-30545](https://jira.mariadb.org/browse/MDEV-30545))

## Optimizer

* [Semi-join optimization](/docs/server/ha-and-performance/optimization-and-tuning/query-optimizations/subquery-optimizations/semi-join-subquery-optimizations.md) for single-table [UPDATE](/docs/server/reference/sql-statements/data-manipulation/changing-deleting-data/update.md)/[DELETE](/docs/server/reference/sql-statements/data-manipulation/changing-deleting-data/delete.md) statements. Update and delete statements that use subqueries can now use all subquery optimization strategies that MariaDB offers, so now if you use subqueries in UPDATE or DELETE, these statements will likely be much faster ([MDEV-7487](https://jira.mariadb.org/browse/MDEV-7487))
* Queries with the [DATE](/docs/server/reference/sql-functions/date-time-functions/date-function.md) or [YEAR](/docs/server/reference/sql-functions/date-time-functions/year.md) functions comparing against a constant can now make use of indexes, so these will be noticeably quicker in certain instances. For example `SELECT * FROM t2 WHERE YEAR(a) = 2019` or `SELECT * FROM t2 WHERE DATE(a) <= '2017-01-01'` ([MDEV-8320](https://jira.mariadb.org/browse/MDEV-8320))

## General

* ALTER ONLINE TABLE - not released in the final [MariaDB 11.1](/docs/release-notes/community-server/old-releases/11.1/what-is-mariadb-111.md) ([MDEV-16329](https://jira.mariadb.org/browse/MDEV-16329))

## JSON

* [JSON\_SCHEMA\_VALID](/docs/server/reference/sql-functions/special-functions/json-functions/json_schema_valid.md) function for validating a JSON schema ([MDEV-27128](https://jira.mariadb.org/browse/MDEV-27128))

## mariadb-backup

* Rename [mariadb-backup’s](https://mariadb.com/docs/server/server-usage/backup-and-restore/mariadb-backup) xtrabackup\_\* files to mariadb\_backup\_\* ([MDEV-18931](https://jira.mariadb.org/browse/MDEV-18931))

{% 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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