> 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/r2dbc/1.3.1.md).

# Connector/R2DBC 1.3.1 Release Notes

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<p align="center">The most recent release of <a href="/spaces/CjGYMsT2MVP4nd3IyW2L/pages/lmhByeB79IW85WGFN3cF">MariaDB Connector/R2DBC</a> is: <a href="/pages/TgwCALBYysMgkjEGbjrI"><strong>1.4.1</strong></a></p>

<p align="center"><a href="https://mariadb.com/downloads/connectors/connectors-data-access/r2dbc-connector" class="button primary">Download Connector/R2DBC 1.4.1</a></p>
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<a href="https://mariadb.com/downloads/connectors/connectors-data-access/r2dbc-connector" class="button primary">Download</a> <a class="button secondary">Release Notes</a> <a href="/pages/kMLlNgGRFXGHykrKZAiP" class="button secondary">Changlog</a> <a href="/spaces/CjGYMsT2MVP4nd3IyW2L/pages/6re7sVSZ3MuRkvHDK2b4" class="button secondary">Connector/R2DBC Overview</a>

## Overview

MariaDB Connector/R2DBC is a non-blocking interface between Java applications and MariaDB Server. MariaDB Connector/R2DBC enables the development of Java 8+ applications for MariaDB database products.

**Release date:** 17 Jun 2026

MariaDB Connector/R2DBC 1.3.1 is a [***Stable***](https://github.com/mariadb-corporation/mariadb-docs/blob/main/community-server/about/release-criteria.md) ***(GA)*** release.

This is a maintenance release for the 1.3 line, back-porting the corrections and security fixes made after 1.3.0. This release is compatible with the [R2DBC](https://r2dbc.io/spec/1.0.0.RELEASE/spec/html/) 1.0.0 specification.

## Notable Changes

* [R2DBC-109](https://jira.mariadb.org/browse/R2DBC-109) Add `fallbackToSystemTrustStore` and `fallbackToSystemKeyStore` options. see [Options](https://mariadb.com/docs/connectors/mariadb-connector-r2dbc/mariadb-connector-r2dbc-connection-parameters#connection-parameters)
* [R2DBC-114](https://jira.mariadb.org/browse/R2DBC-114) Implement Wrapped interface to expose EventLoop scheduler for r2dbc-pool optimization
* [R2DBC-116](https://jira.mariadb.org/browse/R2DBC-116) Add GraalVM native-image configuration and CI coverage

## Bugs Fixed

* [R2DBC-108](https://jira.mariadb.org/browse/R2DBC-108) Handle authentication plugin multi-exchange prefix (0x01) introduced in MDEV-37554
* [R2DBC-111](https://jira.mariadb.org/browse/R2DBC-111) Potential hang when upstream subscription is cancelled before demand
* [R2DBC-112](https://jira.mariadb.org/browse/R2DBC-112) Failed authentication when using `caching_sha2_password` with passwords longer than 18 characters
* [R2DBC-113](https://jira.mariadb.org/browse/R2DBC-113) Add support for RSA public key content in cachingRsaPublicKey and rsaPublicKey options
* [R2DBC-115](https://jira.mariadb.org/browse/R2DBC-115) Clear-text authentication plugins (PAM, mysql\_clear\_password) must require a secure connection (report by fg0x0)
* [R2DBC-117](https://jira.mariadb.org/browse/R2DBC-117) Cap BigDecimal/BigInteger string parsing length to prevent CPU exhaustion if MitM (report by tonghuaroot)
* [R2DBC-119](https://jira.mariadb.org/browse/R2DBC-119) Fail closed when a `classpath:` SSL certificate is missing
* [R2DBC-120](https://jira.mariadb.org/browse/R2DBC-120) Stored-procedure CALL detection wrongly matched any query containing "call" (thanks to yunhobb)
* [R2DBC-121](https://jira.mariadb.org/browse/R2DBC-121) `caching_sha2_password`/`sha256_password` login fails with passwords of 20 characters or more (report by 4UjwXc)
* [R2DBC-122](https://jira.mariadb.org/browse/R2DBC-122) Fix SQL parser to correctly handle '--' in expressions
* [R2DBC-123](https://jira.mariadb.org/browse/R2DBC-123) Pin Locale.ROOT on locale-sensitive wire-format codec sites (thanks to jmestwa-coder)
* [R2DBC-124](https://jira.mariadb.org/browse/R2DBC-124) Ensure a non-UTF8 charset cannot be used for protocol exchanges (report by fg0x0)

## Changelog

For a complete list of changes made in this release, with links to detailed information\
on each push, see the [changelog](/docs/release-notes/connectors/r2dbc/changelogs/1.3.1.md).

## Resources

* [Download](https://mariadb.com/downloads/connectors/connectors-data-access/r2dbc-connector/)
* [Documentation](/docs/connectors/mariadb-connector-r2dbc.md)
* [Install MariaDB Connector/R2DBC](/docs/connectors/mariadb-connector-r2dbc/using-the-native-r2dbc-api-of-mariadb-connector-r2dbc/install-mariadb-connector-r2dbc.md)
* [Install MariaDB Connector/R2DBC with Spring Data](/docs/connectors/mariadb-connector-r2dbc/using-the-spring-data-framework-with-mariadb-connector-r2dbc/install-mariadb-connector-r2dbc-spring-data.md)
* [Report Issues](https://jira.mariadb.org/browse/R2DBC)
* [Source code](https://github.com/mariadb-corporation/mariadb-connector-r2dbc/)

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