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title: Mule Upgrade Tool 1.1.5 Release Notes
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# Mule Upgrade Tool 1.1.5 Release Notes

The Mule upgrade tool is a command line utility for updating and upgrading standalone instances of the Mule 4 runtime engine that are hosted on-premises. The tool can upgrade any supported Mule 4 version (minor, patch, or patch update versions) to a new version.

MuleSoft recommends upgrading to the latest version of Mule.

To incorporate the latest changes and bug fixes, MuleSoft also recommends using the latest version of the tool.

## [](#october-20-2025)October 20, 2025

### Compatibility

<table class="tableblock frame-all grid-all fit-content spread">
<colgroup>
<col>
<col>
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Application/Service</th>
<th class="tableblock halign-left valign-top">Version</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Mule</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">4.1.1 and later</p></td>
</tr>
</tbody>
</table>

### Fixed Issues

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<colgroup>
<col style="width: 66.6666%;">
<col style="width: 33.3334%;">
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<thead>
<tr>
<th class="tableblock halign-left valign-top">Issue Resolution</th>
<th class="tableblock halign-left valign-top">ID</th>
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<tbody>
<tr>
<td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph">
<p>Upgrade of Mule Agent now honors FIPS mode.</p>
</div></div></td>
<td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph">
<p>W-17928490</p>
</div></div></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph">
<p>The upgrade tool now correctly parses arguments for custom LOG4J settings files.</p>
</div></div></td>
<td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph">
<p>W-17291103</p>
</div></div></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph">
<p>The upgrade tool no longer removes empty directories unexpectedly.</p>
</div></div></td>
<td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph">
<p>W-18539935</p>
</div></div></td>
</tr>
</tbody>
</table>

## [](#see-also)See Also

- [Mule Upgrade Tool](https://docs.mulesoft.com/mule-runtime/latest/mule-upgrade-tool)
- [Known Issues](https://help.salesforce.com/s/issues)