---
title: "MariaDB C Connector 3.3.5 and 3.1.21 now available"
publish_date: 2023-05-22
updated_date: 2026-10-20
author: "Daniel Bartholomew"
channel:
  - name: "Releases"
    url: "/resources/blog/channel/releases.md"
tags:
  - name: "MariaDB Connector/C"
    url: "/resources/blog/tag/mariadb-connector-c.md"
  - name: "MariaDB Releases"
    url: "/resources/blog/tag/mariadb-releases.md"
---

# MariaDB C Connector 3.3.5 and 3.1.21 now available

 MariaDB is pleased to announce the immediate availability of MariaDB Connector/C 3.3.5 and 3.1.21. **[Download Now](/downloads/connectors)**

## Release Notes and Changelog

### MariaDB Connector/C 3.3.5

- [MariaDB Connector/C 3.3.5 Release Notes](/kb/en/mariadb-connector-c-3-3-5-release-notes/)
- [MariaDB Connector/C 3.3.5 Changelog](/kb/en/mariadb-connector-c-3-3-5-changelog/)
 
 Notable items in this release include: - Included in [MariaDB 10.10.4](/kb/en/mariadb-10-10-4-release-notes/), [10.9.6](/kb/en/mariadb-10-9-6-release-notes/), and [10.8.8](/kb/en/mariadb-10-8-8-release-notes/)
- Updated bundled zlib library (version 1.2.13)
- Added support for all binary log events (replication/binlog API)
- Support of semi-sync replicatio
- Build named pipe plugin as built-in plugin (Windows)
 
### MariaDB Connector/C 3.1.21

- [MariaDB Connector/C 3.1.21 Release Notes](/kb/en/mariadb-connector-c-3-1-21-release-notes/)
- [MariaDB Connector/C 3.1.21 Changelog](/kb/en/mariadb-connector-c-3-1-21-changelog/)
 
 Notable items in this release include: - Included in [MariaDB 10.5.20](/kb/en/mariadb-10-5-20-release-notes/), [10.4.29](/kb/en/mariadb-10-4-29-release-notes/), and [10.3.39](/kb/en/mariadb-10-3-39-release-notes/)
- Updated bundled zlib library (version 1.2.13)
 
 See the release notes and changelogs for more details and visit [wp.mariadb.com/downloads/connectors](/downloads/connectors) to download.