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title: Mule Runtime Release Notes
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portal_url: https://docs.salesforce.com/mulesoft/current/en-us/mule-runtime/4.9/mule-release-notes.md
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---
---
product: Mule Runtime
version: 4.9
keywords: release notes, mule, 4.13, 4.12, 4.11, 4.9, 4.6, 4.4, 4.3
---

# Mule Runtime Release Notes

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

Mule follows semantic versioning to denote major, minor, and patch releases.

MuleSoft releases enhance the quality, capabilities, and security of Mule runtime engine (Mule). To
take advantage of these improvements, it’s important to adopt a strategy for upgrading your Mule
version and to regularly update patches of your Mule deployments with the latest bug fixes and
security enhancements.

To upgrade to a new Mule version, see [Mule Upgrades and Patch Updates](#mule-upgrades).

## Mule 4 Release Notes

- [Mule Runtime 4.13.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.13.0-release-notes)

- [Mule Runtime 4.12.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.12.0-release-notes)

- [Mule Runtime 4.11.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.11.0-release-notes)

- [Mule Runtime 4.9.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.9.0-release-notes)

- [Mule Runtime 4.6.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.6.0-release-notes)

- [Mule Runtime 4.4.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.4.0-release-notes)
  (This version of the product has reached
  [End of Life](https://www.salesforce.com/en-us/wp-content/uploads/sites/4/documents/legal/Agreements/versioning-back-support-policy.pdf).)

- [Mule Runtime 4.3.0 Release Notes](https://docs.mulesoft.com/release-notes/mule-runtime/mule-4.3.0-release-notes)
  (This version of the product has reached
  [End of Life](https://www.salesforce.com/en-us/wp-content/uploads/sites/4/documents/legal/Agreements/versioning-back-support-policy.pdf).)

## Mule Upgrades and Patch Updates

For Mule 4 upgrades and patch updates:

- [Java Adoption](https://docs.mulesoft.com/release-notes/mule-runtime/java-adoption)

- [Edge and LTS Releases for Mule](https://docs.mulesoft.com/release-notes/mule-runtime/lts-edge-release-cadence) (for
  Mule versions 4.6 and later)

- [Mule Upgrade Tool](https://docs.mulesoft.com/mule-runtime/latest/mule-upgrade-tool) (for upgrading standalone Mule 4 instances,
  including minor versions and patch updates)

- [Mule Upgrades and Patch Updates](https://docs.mulesoft.com/release-notes/mule-runtime/upgrade-update-mule) (overview)

- [Update Patches to Mule](https://docs.mulesoft.com/release-notes/mule-runtime/patching-mule-versions)

- [Upgrading Mule Runtime Engine (Versions 4.x to 4.n)](https://docs.mulesoft.com/release-notes/mule-runtime/updating-mule-4-versions)

## Mule Troubleshooting Plugin

- [Mule Troubleshooting Plugin](https://docs.mulesoft.com/mule-runtime/latest/mule-troubleshooting-plugin)

## Mule Services

- [HTTP Service Release Notes - Mule 4](https://docs.mulesoft.com/release-notes/mule-runtime/service-http-release-notes)

- [OAuth Service Release Notes - Mule 4](https://docs.mulesoft.com/release-notes/mule-runtime/service-oauth-release-notes)

- [Scheduler Service Release Notes - Mule 4](https://docs.mulesoft.com/release-notes/mule-runtime/service-scheduler-release-notes)

- [Mule SOAP Service Release Notes - Mule 4](https://docs.mulesoft.com/release-notes/mule-runtime/service-soap-release-notes)

## Anypoint Enterprise Security

- [Anypoint Security Release Notes](https://docs.mulesoft.com/release-notes/anypoint-security/anypoint-security-rn-landing-page)

## See Also

- [Known Issues](https://help.salesforce.com/s/issues)