Connector/R2DBC 1.4.0 Release Notes

Connector/R2DBC 1.4.0 is a Stable (GA) release of MariaDB Connector/R2DBC, released on 2026-02-17

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 Feb 2026

MariaDB Connector/R2DBC 1.4.0 is a Stable (GA) release.

Notable Changes

• R2DBC-109 Add fallbackToSystemTrustStore and fallbackToSystemKeyStore options. see Options

• R2DBC-110 Support java.time.Instant parameters

• R2DBC-114 Implement Wrapped interface to expose EventLoop scheduler for r2dbc-pool optimization

Bugs Fixed

• R2DBC-108 Handle authentication plugin multi-exchange prefix (0x01) introduced in MDEV-37554

• R2DBC-111 Potential hang when upstream subscription is cancelled before demand

• R2DBC-112 Failed authentication when using caching_sha2_password with passwords longer than 18 characters

• R2DBC-113 Add support for RSA public key content in cachingRsaPublicKey and rsaPublicKey options

Resources

• Download

• Documentation

• Install MariaDB Connector/R2DBC

• Install MariaDB Connector/R2DBC with Spring Data

• Report Issues

• Source code

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