---
title: "ePO - SaaS Update 4 Release"
slug: "epo-saas-update-4-release"
tags: ["Release Notes", "ePolicy Orchestrator - SaaS", "TLX-EPO-S"]
updated: 2026-09-12T19:53:30Z
published: 2026-09-12T19:53:30Z
canonical: "docs.trellix.com/epo-saas-update-4-release"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.trellix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ePO - SaaS Update 4 Release

### Release summary

This release includes third-party library upgrades and resolves issues with **System Tree** page buttons and reporting query timeouts.

#### Release date

- US and Canada region: 05 August, 2026
- non-U.S. region: 03 August, 2026

### What's new

This release includes the following third-party component upgrades:

- **Apache Tomcat** upgraded to version 9.0.118 to maintain the latest security and stability fixes for the web server component.
- **JRE** upgraded to version 1.8.0_491 to maintain the latest security and stability fixes for the Java runtime environment.
- **jakarta.mail** component upgraded to version 1.6.7 to maintain the latest fixes for the email messaging library.
- **Apache Commons Configuration** upgraded to version to 2.15.1 for the latest fixes of the configuration management library.
- **PostgreSQL JDBC Driver** upgraded to version to 42.7.11 for the latest fixes of database connectivity.

### Resolved issues

The following table lists the resolved issues in this release.

**General**

| Issue ID | Description |
| --- | --- |
| EPM-18532 | On the **System Tree** page, the **New Systems**, **New Subgroups**, and **System Tree Permissions** buttons disappeared after refreshing the browser. |

**Performance**

| Issue ID | Description |
| --- | --- |
| EPM-18838 | The **Duplicate System Names** and **Endpoint Security Threat Prevention: Top 10 Computers with the Most Detections** queries now run completely without timing out or returning HTTP 504 errors. |

### Known issues

For a complete list of known issues, see [KB90762](https://support.trellix.com/s/article/KB90762).

### Deprecated items

This release does not contain any deprecated items.

### Additional information

- [Trellix Thrive](https://thrive.trellix.com/): Access the unified portal for technical support, product downloads, support case management, diagnostic tools, knowledge base articles, product training, webinars, and community interaction.

> [!NOTE]
> Note
> 
> Access to the Trellix Thrive Portal requires login using valid Trellix customer support, partner, or employee credentials.
- [Trellix ePO SaaS Documentation](/v1/docs/trellix-endpoint-compatibility-and-interoperability-results): For detailed technical information, including product guides, release notes, and configuration instructions of ePO SaaS, visit our [documentation](http://docs.trellix.com) portal.
- [Trellix Product Compatibility Matrix](/v1/docs/trellix-endpoint-compatibility-and-interoperability-results).