---
title: "Upgrade the server software"
slug: "upgrade-the-server-software-1"
tags: ["DLP 11.10.x", "DLPD 11.10.x", "Install and Get Started"]
updated: 2026-11-05T14:30:37Z
published: 2026-11-05T14:30:37Z
canonical: "docs.trellix.com/upgrade-the-server-software-1"
---

> ## 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.

# Upgrade the server software

Upgrade installation consists of checking in and deploying the Trellix DLP Discover server software and OCR software packages.

Download the Trellix DLP extension and Trellix DLP Discover server software from the [Trellix download site](https://www.trellix.com/en-us/downloads.html) or use the Software Catalog (with the **Download** option).

Upgrade the Trellix DLP extension in ePO - On-prem before upgrading the Trellix DLP Discover server software.

> [!NOTE]
> Note
> 
> The Trellix DLP extension version must be the same or newer than the Trellix DLP Discover server version.

The OCR package is deleted when you upgrade the Trellix DLP Discover server software. After deploying the upgrade Trellix DLP Discover software, deploy the upgrade OCR package. The OCR package version must be the same as the Trellix DLP Discover server software.

1. In ePO - On-prem, select **Menu** → **Software** → **Main Repository**.
2. In the Main Repository, click **Check In Package**.
3. Select package type **Product or Update (.ZIP)**, then click **Browse**.

  - The Trellix DLP Discover server package is named `Discover_[version number].zip`.
  - The DLP Server package is named `DLPServer_[version number].zip`
  - The OCR package is named `DLP_OCRAddonPackage.zip`
4. Click **Next**.
5. Review the details on the **Check in Package** page, then click **Save**.

The package is added to the Main Repository.
6. Deploy the server software with ePO - On-prem.