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# Microsoft .NET Connector Release Notes

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

Support Category:
[Select](https://www.salesforce.com/en-us/wp-content/uploads/sites/4/documents/legal/Agreements/versioning-back-support-policy.pdf)

Anypoint Connector for Microsoft .NET (Microsoft .NET Connector) lets you execute native .NET code
in a Mule app.

Guide: [Microsoft .NET Connector](https://docs.mulesoft.com/microsoft-dotnet-connector/latest/)  
Reference: [Microsoft .NET Connector Reference](https://docs.mulesoft.com/microsoft-dotnet-connector/latest/microsoft-dotnet-connector-reference)

## 3.1.14

**September 18, 2026**

### What’s New

- This release includes general security fixes.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 3.1.13

**August 17, 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.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 3.1.12

**July 21, 2026**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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>These libraries are upgraded to address reported security vulnerabilities:</p></div><div><ul><li><p>The <code>jackson</code> library is upgraded to version 2.22.1.</p></li><li><p>The <code>log4j</code> library is upgraded to version 2.26.1.</p></li><li><p>The <code>netty</code> library is upgraded to version 4.2.16-Final.</p></li></ul></div></div></td><td><div><div><p>W-23452737</p></div></div></td></tr></tbody></table>

## 3.1.11

**June 25, 2026**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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>These libraries are upgraded to address reported security vulnerabilities:</p></div><div><ul><li><p>The <code>jackson</code> library is upgraded to version 2.22.0.</p></li><li><p>The <code>log4j</code> library is upgraded to version 2.26.0.</p></li><li><p>The <code>commons-io</code> library is upgraded to version 2.22.0.</p></li><li><p>The <code>netty</code> library is upgraded to version 4.2.15-Final.</p></li></ul></div></div></td><td><div><div><p>W-23136105</p></div></div></td></tr></tbody></table>

## 3.1.10

**May 26, 2026**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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>These libraries are upgraded to address reported security vulnerabilities:</p></div><div><ul><li><p>The <code>guava</code> library is upgraded to version 33.6.0-jre.</p></li><li><p>The <code>log4j</code> library is upgraded to version 2.25.4.</p></li></ul></div></div></td><td><div><div><p>W-22406285</p></div></div></td></tr></tbody></table>

## 3.1.9

**March 22, 2026**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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>These libraries are upgraded to address reported security vulnerabilities:</p></div><div><ul><li><p>The <code>commons-io</code> library is upgraded to version 2.21.0.</p></li><li><p>The <code>log4j</code> library is upgraded to version 1.2.17-atlassian-0.4.</p></li></ul></div></div></td><td><div><div><p>W-21334686</p></div></div></td></tr></tbody></table>

## 3.1.8

**October 8, 2024**

### What’s New

- This connector is now compatible with Java 17.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 3.1.7

**May 2, 2023**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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>Upgraded the Jackson Core library from com.fasterxml.jackson.core:jackson-core:2.13.1 to com.fasterxml.jackson.core:jackson-core:2.15.0.</p></div></div></td><td><div><div><p>W-12665440</p></div></div></td></tr></tbody></table>

## 3.1.6

**October 11, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>The com.fasterxml.jackson.core library is upgraded to version 2.14.0-rc1 to address reported security vulnerabilities.</p></div></div></td><td><div><div><p>W-11853430</p></div></div></td></tr></tbody></table>

## 3.1.5

**April 5, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>Fixed reported security vulnerabilities by upgrading the Jackson Databind library from <code>com.fasterxml.jackson.core:jackson-databind:2.12.6</code> to <code>com.fasterxml.jackson.core:jackson-databind:2.12.6.1</code>.</p></div></div></td><td><div><div><p>W-10920471</p></div></div></td></tr></tbody></table>

## 3.1.4

**January 5, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>Upgraded library dependencies.</p></div></div></td><td><div><div><p>CONN-9841</p></div></div></td></tr></tbody></table>

## 3.1.3

**December 17, 2021**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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</th><th>ID</th></tr></thead><tbody><tr><td><div><div><p>Upgraded library dependencies.</p></div></div></td><td><div><div><p>CONN-9621</p></div></div></td></tr></tbody></table>

## 3.1.2

**August 26, 2021**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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</th><th>ID</th></tr></thead><tbody><tr><td><p>Optimized the connector to improve its overall stability and performance.</p></td><td><p>N/A</p></td></tr></tbody></table>

## 3.1.1

**September 08, 2020**

### Compatibility

Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed Issues

- Fixed commons-io vulnerability

## 3.1.0

**August 20, 2020**

### Compatibility

Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>Java</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed Issues

- Added support for Java 11.

## 3.0.4

**May 29, 2020**

### Compatibility

Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>Java</p></td><td><p>8</p></td></tr></tbody></table>

### Fixed Issues

- Updated the `com.fasterxml.jackson.core:jackson-databind:2.9.0` dependency to
  `com.fasterxml.jackson.core:jackson-databind:2.11.0` to fix vulnerability issues. (CONN-6045)

- Deleted the following dependencies to fix vulnerability issues (CONN-6045):

  - `log4j:log4j:1.2.17`

  - `dotnet:dotnetutils:1.0.0.0`

## 3.0.3

**February 14, 2020**

### Compatibility

Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr><tr><td><p>Java</p></td><td><p>8</p></td></tr></tbody></table>

### Fixed Issues

- Test connection failed. (SE-14227)

- Metadata was not populating. (SE-14228)

- Leaving the Arguments input blank or setting it to null, always caused an error. (SE-14191)

## 3.0.2

**September 12, 2019**

### Compatibility

Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr></tbody></table>

### Fixed Issues

- Redeployment fails when using the .NET Connector in Windows. (SE-9882)

### Known issues

- The .NET connector is not compatible with Mule 4.2.0 and later.

## 3.0.1

**August 14, 2019**

### Compatibility

The Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 and later</p></td></tr></tbody></table>

### Fixed Issues

- Microsoft .NET connector was unable to handle complex objects and threw an Invalid JavaScript
  property identifier error. (SE-9730)

### Known issues

- Redeployment fails when using the .NET connector on Windows. (SE-9882)

- The .NET connector is not compatible with Mule 4.2.0 and later.

## 3.0.0

**June 22, 2018**

This release provides Mule 4 support.

### Compatibility

The Microsoft .NET Connector is compatible with:

<table><colgroup><col> <col></colgroup><thead><tr><th>App/Service</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule</p></td><td><p>4.1.1 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)