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Mule 3 to Mule 4 Cheat Sheet

This version of Mule reached its End of Life on May 2, 2023, when Extended Support ended.

Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted.

MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements.

To help you move from Mule 3 to Mule 4, we built this index to help you find the Mule 4 equivalent of the most common Mule 3 use cases.

IMPORTANT: Keep in mind that this index is only intended to act as a quick entry to the most common migration scenarios. It doesn’t contain the entire migration guide. For the full set of migration articles, please visit our Mule Mule 4 for Mule 3 Users page.