> 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/10.1/10.1.48.md).

# MariaDB 10.1.48 Release Notes

[Download](https://downloads.mariadb.org/mariadb/10.1.48/) | [Release Notes](/docs/release-notes/community-server/old-releases/10.1/10.1.48.md) | [Changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-101-series/mariadb-10148-changelog.md) | [Overview of 10.1](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md)

**Release date:** 3 Nov 2020

[MariaDB 10.1](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) is a previous stable series of MariaDB. It is an evolution\
of [MariaDB 10.0](/docs/release-notes/community-server/old-releases/10.0/changes-improvements-in-mariadb-10-0.md) with several entirely new features not found anywhere else\
and with backported and reimplemented features from MySQL 5.6 and 5.7.

[MariaDB 10.1.48](/docs/release-notes/community-server/old-releases/10.1/10.1.48.md) is a [***Stable (GA)***](/docs/release-notes/community-server/about/release-criteria.md) release.

**For an overview of** [**MariaDB 10.1**](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) **see the**[**What is MariaDB 10.1?**](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) **page.**

Thanks, and enjoy MariaDB!

## Notable Changes

* [Galera wsrep library](https://github.com/mariadb-corporation/docs-release-notes/blob/test/kb/en/what-is-mariadb-galera-cluster/README.md) updated to 25.3.31
* [BLACKHOLE Storage Engine](/docs/server/server-usage/storage-engines/blackhole.md) maximum index size increased from 1000 to 3500 bytes ([MDEV-24017](https://jira.mariadb.org/browse/MDEV-24017))
* [Calculating (auto rounding)](/docs/server/server-management/variables-and-modes/server-system-variables.md#div_precision_increment) issue ([MDEV-23702](https://jira.mariadb.org/browse/MDEV-23702))
* Temporary tables can no longer overwrite existing files. Instead an error is returned should a conflict occur ([MDEV-23569](https://jira.mariadb.org/browse/MDEV-23569))
* Binlog checksum verification at recovery time ([MDEV-23832](https://jira.mariadb.org/browse/MDEV-23832))
* Verbose print-out of [Geometry types](/docs/server/reference/sql-structure/geometry/geometry-types.md) by [mysqlbinlog](/docs/server/clients-and-utilities/logging-tools/mariadb-binlog.md) ([MDEV-22330](https://jira.mariadb.org/browse/MDEV-22330))
* [SHOW BINLOG EVENTS](/docs/server/reference/sql-statements/administrative-sql-statements/show/show-binlog-events.md) from validates when binlog checksummed ([MDEV-21839](https://jira.mariadb.org/browse/MDEV-21839))
* Freeing memory of [replicate\_do\_table](/docs/server/ha-and-performance/standard-replication/replication-and-binary-log-system-variables.md#replicate_do_table) ([MDEV-23534](https://jira.mariadb.org/browse/MDEV-23534))
* Corrected verbose [mysqlbinlog](/docs/server/clients-and-utilities/logging-tools/mariadb-binlog.md) output for multi-record Rows-log-event ([MDEV-16372](https://jira.mariadb.org/browse/MDEV-16372))
* [SET GLOBAL replicate\_do\_db = DEFAULT](/docs/server/ha-and-performance/standard-replication/replication-and-binary-log-system-variables.md#replicate_do_db) no longer causes crash ([MDEV-20744](https://jira.mariadb.org/browse/MDEV-20744))
* [User killed queries](/docs/server/reference/sql-statements/administrative-sql-statements/kill.md) that were running an index condition pushdown in InnoDB/XtraDB will now return an error ([MDEV-23938](https://jira.mariadb.org/browse/MDEV-23938))
* As per the [MariaDB Deprecation Policy](/docs/release-notes/community-server/about/platform-deprecation-policy.md), this will be the last release of [MariaDB 10.1](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) for CentOS/RHEL 6.x
* As per the [MariaDB Maintenance Policy](https://mariadb.org/about/#maintenance-policy), this will be the final release of [MariaDB 10.1](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md)
* Fixes for the following [security vulnerabilities](/docs/server/security/cve.md):
  * [CVE-2020-14812](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14812)
  * [CVE-2020-14765](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14765)
  * [CVE-2020-28912](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28912) ([MDEV-24040](https://jira.mariadb.org/browse/MDEV-24040))

## Changelog

For a complete list of changes made in [MariaDB 10.1.48](/docs/release-notes/community-server/old-releases/10.1/10.1.48.md) with links to detailed\
information on each push, see the [changelog](/docs/release-notes/community-server/changelogs/changelogs-mariadb-101-series/mariadb-10148-changelog.md).

## Contributors

For a full list of contributors to [MariaDB 10.1.48](/docs/release-notes/community-server/old-releases/10.1/10.1.48.md), see the [MariaDB Foundation release announcement](https://mariadb.org/mariadb-10-4-10-10-3-20-10-2-29-and-10-1-46-now-available/).

A file format compatibility bug that was introduced in [MariaDB 10.1.0](/docs/release-notes/community-server/old-releases/10.1/10.1.0.md) was fixed in [MariaDB 10.1.21](/docs/release-notes/community-server/old-releases/10.1/10.1.21.md).\
Using [page\_compression](/docs/server/server-usage/storage-engines/innodb/innodb-page-compression.md) or non-default [innodb\_page\_size](/docs/server/server-usage/storage-engines/innodb/innodb-system-variables.md) created files that were incompatible with [MariaDB 10.0](/docs/release-notes/community-server/old-releases/10.0/changes-improvements-in-mariadb-10-0.md) or MySQL 5.6. [MariaDB 10.1.21](/docs/release-notes/community-server/old-releases/10.1/10.1.21.md) and higher will convert affected files from earlier [MariaDB 10.1](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) releases to a compatible format.**This prevents a downgrade to earlier** [**MariaDB 10.1**](/docs/release-notes/community-server/old-releases/10.1/changes-improvements-in-mariadb-10-1.md) **versions.**[See the commit for details.](https://github.com/MariaDB/server/commit/ab1e6fefd869242d962cb91a006f37bb9ad534a7)

{% 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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