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title: Mule 4 for Mule 3 Users
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# Mule 4 for Mule 3 Users

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

Mule 4 improvements make it easier to learn, develop, and manage than Mule 3. Benefits include:

- Easier and faster app development

- Seamless access and data mapping

- Simplified connectivity

- Auto-tuned and highly performant runtime

- Seamless upgrades of Mule runtime engine and connector versions

- Up to 50% fewer steps and concepts to learn than Mule 3

If you are currently running Mule 3 applications, read this documentation to get an overview of the
Mule 4 capabilities and to learn the differences between Mule 3 and Mule 4, to know when to migrate
to Mule 4, and to understand what is required to migrate apps to Mule 4.

To understand the options for migrating your apps from Mule 3 to Mule 4, review
[Migration to Mule 4](https://docs.mulesoft.com/mule-runtime/4.3/migration-intro).