Mule Upgrade Tool 1.1.8 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.
April 22, 2026
Compatibility
| Application/Service | Version |
|---|---|
Mule |
4.1.1 and later |
Fixed Issues
| Issue Resolution | ID |
|---|---|
Runtime Mananger Agent upgrades on Windows systems no longer fail because of improper file path handling. |
W-21445583 |