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title: Slack Connector Release Notes
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# Slack 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 Slack (Slack Connector) gives you access to the Slack platform. This
connector exposes operations provided by the Slack API. Visit the
[official Slack site](https://slack.com/help/articles/115004071768-What-is-Slack-) to learn more.

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

## 2.0.3

**September 4, 2026**

### What’s New

- This release includes general security fixes.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 2.0.2

**August 21, 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>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.0 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>These libraries are upgraded to address reported security vulnerabilities:</p></div><div><ul><li><p>The <code>jackson</code> library is upgraded to version 2.22.2.</p></li><li><p>The Google Guava library is upgraded to version 33.6.0-jre.</p></li></ul></div></div></td><td><p>W-23848672</p></td></tr></tbody></table>

## 2.0.1

**March 20, 2026**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.0 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>These libraries are upgraded to address reported security vulnerabilities:</p></div><div><ul><li><p>The <code>commons-lang3</code> library is upgraded to version 3.20.0.</p></li><li><p>The <code>commons-text</code> library is upgraded to version 1.15.0.</p></li><li><p>The <code>guava</code> library is upgraded to version 33.5.0-jre.</p></li><li><p>The <code>jackson</code> library is upgraded to version 2.21.1.</p></li><li><p>The <code>json</code> library is upgraded to version 20251224.</p></li></ul></div></div></td><td><p>W-21506502</p></td></tr><tr><td><div><div><p>The connector now uses updated packaging to prevent the <code>DuplicateExportedPackageException</code> error and the exported packages no longer conflict with the REST SDK packages of other connectors when you use multiple REST-based connectors in the same Mule application.</p></div></div></td><td><p>W-21602195</p></td></tr></tbody></table>

## 2.0.0

**March 2, 2025**

### What’s New

- This connector no longer has the **Upload File** operation because the Slack `files.upload` API
  method is deprecated. For more information, refer to the
  [Slack API documentation](https://docs.slack.dev/reference/methods/files.upload/).

- To upload files, this connector now includes the new **Get upload url** and **Complete Upload
  External** operations.

  For more information about the operations, refer to
  [Get Upload URL](https://docs.mulesoft.com/slack-connector/latest/slack-connector-reference#GetFilesUploadUrl) and
  [Complete Upload External](https://docs.mulesoft.com/slack-connector/latest/slack-connector-reference#CreateFilesCompleteuploadExternal).

  For examples about how to use these operations, refer to
  [Upload a File to a Slack Channel (Using File Path)](https://docs.mulesoft.com/slack-connector/latest/slack-connector-examples#upload-file-to-channel)
  and
  [Upload File Text Content to a Slack Channel](https://docs.mulesoft.com/slack-connector/latest/slack-connector-examples#upload-file-text-content-to-channel).

- In the Slack Connector configuration window, the **TLS** tab is renamed to the **Security** tab.

For more information about how to upgrade this connector to version 2.0.0, refer to
[Upgrading and Migrating Slack Connector to Version 2.x](https://docs.mulesoft.com/slack-connector/latest/slack-connector-upgrade-migrate).

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.0 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 1.0.19

**April 8, 2024**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 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><p>You can now use <strong>Conversation list</strong> and <strong>Users list</strong> operations in Anypoint Studio as intended.</p></td><td><p>W-15448362</p></td></tr></tbody></table>

## 1.0.18

**March 14, 2024**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 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><p>You can now install Slack Connector in Anypoint Studio as intended.</p></td><td><p>W-15251546</p></td></tr></tbody></table>

## 1.0.17

**January 25, 2024**

### What’s New

- This connector is now compatible with Java 17.

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>OpenJDK</p></td><td><p>8, 11, and 17</p></td></tr></tbody></table>

## 1.0.16

**March 28, 2023**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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><p>The overall stability and performance of the connector are improved.</p></td><td><p>W-12433949</p></td></tr></tbody></table>

## 1.0.15

**December 12, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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><p>The overall stability and performance of the connector are improved.</p></td><td><p>W-12180337</p></td></tr></tbody></table>

## 1.0.14

**October 18, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>The org.apache.commons library is upgraded to version 1.10.0 to address reported security vulnerabilities.</p></td><td><p>W-11913983</p></td></tr><tr><td><p>The com.fasterxml.jackson.core is upgraded to version 2.14.0-rc1 to address reported security vulnerabilities.</p></td><td><p>W-11853432</p></td></tr></tbody></table>

## 1.0.13

**July 29, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>W-11415979</p></td></tr></tbody></table>

## 1.0.12

**May 17, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>W-11031313</p></td></tr></tbody></table>

## 1.0.11

**April 5, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>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></td><td><p>W-10920457</p></td></tr></tbody></table>

## 1.0.10

**February 1, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>When sending a message in Slack Connector, a <code>Content cannot be displayed</code> notification appeared instead of the message preview.</p></td><td><p>COCN-727</p></td></tr></tbody></table>

## 1.0.9

**January 3, 2022**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>Upgraded library dependencies.</p></td><td><p>CONN-9851, CONN-9857</p></td></tr></tbody></table>

## 1.0.8

**December 21, 2021**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>Upgraded library dependencies.</p></td><td><p>CONN-9564</p></td></tr></tbody></table>

## 1.0.7

**November 3, 2021**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>CSCA-1031</p></td></tr></tbody></table>

## 1.0.6

**October 14, 2021**

### Compatibility

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>COCN-512</p></td></tr></tbody></table>

## 1.0.5

**September 2, 2021**

### Compatibility

Slack Connector is compatible with these software versions:

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</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>COCN-539, COCN-512</p></td></tr></tbody></table>

## 1.0.4

**July 9, 2021**

### Compatibility

Slack Connector is compatible with these software versions:

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed Issues

- Optimized the connector to improve its overall stability and performance.

## 1.0.3

**June 8, 2021**

### Compatibility

Slack Connector is compatible with these software versions:

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed Issues

- Improved the value provider’s error handling. (CONN-7984)

## 1.0.2

**March 19, 2021**

### Compatibility

Slack Connector is compatible with these software versions:

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed in This Release

- Improved the content of some operations and their metadata. (CONN-7745)

## 1.0.1

**February 19, 2021**

### Compatibility

Slack Connector is compatible with these software versions:

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Fixed in This Release

- The connector did not appear in Studio. (CONN-7667)

- When using the Conversations List or Users List operation, the connector failed with a null
  pointer exception. (CONN-7548)

## 1.0.0

**January 22, 2021**

New connector.

### Compatibility

Slack Connector is compatible with these software versions:

<table><colgroup><col> <col></colgroup><thead><tr><th>Software</th><th>Version</th></tr></thead><tbody><tr><td><p>Mule runtime engine</p></td><td><p>4.2.1 and later</p></td></tr><tr><td><p>Open JDK</p></td><td><p>8 and 11</p></td></tr></tbody></table>

### Features

For a list of supported configurations and operations, see the Slack Connector Reference Guide.

### Fixed in This Release

Not applicable.

## 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)