Connector/C 3.4.9 Release Notes

Release notes for MariaDB Connector/C 3.4.9, a Stable (GA) release published 10 June 2026.

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Release date: 10 Jun 2026

This is a Stable (GA) release of MariaDB Connector/C, formerly known as MariaDB Client Library for C.

For a description of this library see the MariaDB Connector/C page.

Notable Items

• Included in MariaDB Community Server 11.4.11, 11.4.12, 11.8.7, and 11.8.8

Issues Fixed

• CONC-769: Add null checks for ma_hash_new return value

• CONC-805: Fixed const correctness in mariadb_set_conf_option

• CONC-812: Always update length member of bind structure for fixed sized types

• CONC-813: ubsan fixes

• CONC-815: timestamp calculation in binlog api

• CONC-816: CMake modernization for 3.12

• CONC-819: mysql_real_escape_string incorrectly handles big5

• MDEV-37527: disallow unresolved symbols in dynamic plugins

Special thanks to Michael Schorm and Rudi Heitbaum for their contributions.

Changelog

For a list of changes made in this release, with links to detailed information on each push, see the changelog.

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