> 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/connectors/c/3.1/3.1.10.md).

# Connector/C 3.1.10 Release Notes

Release notes for MariaDB Connector/C 3.1.10, a Stable (GA) release published 17 September 2020.

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<p align="center">The most recent release of <a href="/docs/connectors/mariadb-connector-c.md">MariaDB Connector/C</a> is: <a href="/docs/release-notes/connectors/c/3.4/3.4.11.md"><strong>3.4.11</strong></a></p>

<p align="center"><a href="https://mariadb.com/downloads/connectors/connectors-data-access/c-connector" class="button primary">Download Connector/C 3.4.11</a></p>
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[Download](https://mariadb.com/downloads/#connectors)[Release Notes](/docs/release-notes/connectors/c/3.1/3.1.10.md)[Changelog](/docs/release-notes/connectors/c/changelogs/3.1/3.1.10.md)[About MariaDB Connector/C](/docs/connectors/mariadb-connector-c.md)

**Release date:** 17 September 2020

This is a [***Stable (GA)***](/docs/release-notes/community-server/about/release-criteria.md) release of the MariaDB\
Connector/C, formerly known as MariaDB Client Library for C.

**For a description of this library see the**[**MariaDB Connector/C**](/docs/connectors/mariadb-connector-c.md) **page.**

## Notable Changes

* [CONC-500](https://jira.mariadb.org/browse/CONC-500): Fixed error when loading intermediate chained certificates
* [MDEV-18818](https://jira.mariadb.org/browse/MDEV-18818): Fixed wrong zlib in mariadb\_config when building inside server package
* [CONC-498](https://jira.mariadb.org/browse/CONC-498): MYSQL\_UNIX\_ADDR and MYSQL\_PORT are now defined
* Added new build option WIITH\_ICONV=ON/OFF. When set to OFF (default) API function mariadb\_convert\_string will always return -1 and sets errorcode to ENOTSUP.
* mariadb\_config now tries to determine the path of execution or uses MARIADB\_CONFIG environment variable before falling back and using CMAKE\_INSTALL\_PREFIX for location of libraries and include files
* added --variables option for mariadb\_config. Supported values are pkgincludedir, pkglibdir and pkgplugindir.

## Changelog

For a list of changes made in this release, with links to detailed information on each push, see the [changelog](/docs/release-notes/connectors/c/changelogs/3.1/3.1.10.md).

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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.
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