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Microsoft .NET Connector Release Notes

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

Guide: Microsoft .NET Connector
Reference: Microsoft .NET Connector Reference

3.1.14

September 18, 2026

What’s New

  • This release includes general security fixes.

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

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

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

3.1.12

July 21, 2026

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The jackson library is upgraded to version 2.22.1.

  • The log4j library is upgraded to version 2.26.1.

  • The netty library is upgraded to version 4.2.16-Final.

W-23452737

3.1.11

June 25, 2026

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The jackson library is upgraded to version 2.22.0.

  • The log4j library is upgraded to version 2.26.0.

  • The commons-io library is upgraded to version 2.22.0.

  • The netty library is upgraded to version 4.2.15-Final.

W-23136105

3.1.10

May 26, 2026

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The guava library is upgraded to version 33.6.0-jre.

  • The log4j library is upgraded to version 2.25.4.

W-22406285

3.1.9

March 22, 2026

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The commons-io library is upgraded to version 2.21.0.

  • The log4j library is upgraded to version 1.2.17-atlassian-0.4.

W-21334686

3.1.8

October 8, 2024

What’s New

  • This connector is now compatible with Java 17.

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8, 11, and 17

3.1.7

May 2, 2023

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

Issue Resolution ID

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.

W-12665440

3.1.6

October 11, 2022

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

Issue ID

The com.fasterxml.jackson.core library is upgraded to version 2.14.0-rc1 to address reported security vulnerabilities.

W-11853430

3.1.5

April 5, 2022

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

Issue ID

Fixed reported security vulnerabilities by upgrading the Jackson Databind library from com.fasterxml.jackson.core:jackson-databind:2.12.6 to com.fasterxml.jackson.core:jackson-databind:2.12.6.1.

W-10920471

3.1.4

January 5, 2022

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

Issue ID

Upgraded library dependencies.

CONN-9841

3.1.3

December 17, 2021

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

Issue ID

Upgraded library dependencies.

CONN-9621

3.1.2

August 26, 2021

Compatibility

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

Issue ID

Optimized the connector to improve its overall stability and performance.

N/A

3.1.1

September 08, 2020

Compatibility

Microsoft .NET Connector is compatible with:

App/Service Version

Mule

4.1.1 and later

OpenJDK

8 and 11

Fixed Issues

  • Fixed commons-io vulnerability

3.1.0

August 20, 2020

Compatibility

Microsoft .NET Connector is compatible with:

App/Service Version

Mule

4.1.1 and later

Java

8 and 11

Fixed Issues

  • Added support for Java 11.

3.0.4

May 29, 2020

Compatibility

Microsoft .NET Connector is compatible with:

App/Service Version

Mule

4.1.1 and later

Java

8

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:

App/Service Version

Mule

4.1.1 and later

Java

8

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:

App/Service Version

Mule

4.1.1 and later

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:

App/Service Version

Mule

4.1.1 and later

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:

App/Service Version

Mule

4.1.1 and later

See Also