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# MQTT Connector Release Notes

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

Anypoint Connector for MQTT (MQTT Connector) is an MQTT (Message Queuing Telemetry Transport) v3.x
protocol-compliant MuleSoft extension. MQTT is a lightweight publish/subscribe messaging protocol
designed for connecting remote devices with a small code footprint and minimal network bandwidth.

Guide: [MQTT Connector User Guide](https://docs.mulesoft.com/mqtt3-connector/latest/)

## 1.1.1

**September 3, 2026**

### What’s New

- This release includes general security fixes.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 1.1.0

**August 19, 2026**

### What’s New

- This connector version requires Mule runtime 4.6.22 or later if you’re using Mule 4.6.x, or Mule
  runtime 4.9.9 or later if you’re using Mule 4.9.x. If you prefer not to upgrade your Mule runtime,
  use the connector version released immediately after this one.

- This release includes general security fixes.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

### Fixed Issues

<table><colgroup><col> <col></colgroup><thead><tr><th>Issue Resolution</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>The <code>org.apache.commons:commons-lang3</code> library is upgraded to version 3.20.0 to address reported security vulnerabilities.</p></div></div></td><td><div><div><p>W-3300013</p></div></div></td></tr></tbody></table>

## 1.0.6

**July 28, 2025**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

### Fixed Issues

<table><colgroup><col> <col></colgroup><thead><tr><th>Issue Resolution</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>MQTT Connector now uses deferred connections to avoid losing messages when reconnecting.</p></div></div></td><td><div><div><p>W-14248056</p></div></div></td></tr><tr><td><div><div><p>Updated org.apache.commons:commons-lang3 from 3.12.0 to 3.18.0.</p></div></div></td><td><div><div><p>W-19150162</p></div></div></td></tr></tbody></table>

## 1.0.5

**May 6, 2024**

### What’s New

- This connector is now compatible with Java 17.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 1.0.4

**December 28, 2023**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed Issues

<table><colgroup><col> <col></colgroup><thead><tr><th>Issue Resolution</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>When there are two <strong>On New Message</strong> sources using the same configuration, they now successfully reconnect.</p></div></div></td><td><div><div><p>W-14562276</p></div></div></td></tr></tbody></table>

## 1.0.3

**September 20, 2023**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr></tbody></table>

### Fixed Issues

<table><colgroup><col> <col></colgroup><thead><tr><th>Issue Resolution</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>The <strong>On New Message</strong> listener source now successfully completes the reconnection.</p></div></div></td><td><div><div><p>W-13854587</p></div></div></td></tr></tbody></table>

## 1.0.2

**April 4, 2023**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr></tbody></table>

### Fixed Issues

<table><colgroup><col> <col></colgroup><thead><tr><th>Issue</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>The <strong>Publish</strong> operation now reconnects successfully.</p></div></div></td><td><div><div><p>W-12413989</p></div></div></td></tr></tbody></table>

## 1.0.1

**March 2, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr></tbody></table>

### Fixed Issues

<table><colgroup><col> <col></colgroup><thead><tr><th>Issue</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>External library not detected for the MQ connection configuration.</p></div></div></td><td><div><div><p>W-10582974</p></div></div></td></tr></tbody></table>

## 1.0.0

**September 10, 2021**

### What’s New

New connector.

For a list of supported configurations and operations, refer to the MQTT Connector Reference Guide.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Application/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.3.0 and later</p></td></tr></tbody></table>

## See Also

- [Salesforce Help](https://help.salesforce.com)

- [MuleSoft Services](https://www.mulesoft.com/support-and-services)

- [Known Issues](https://help.salesforce.com/s/issues)