Step 5 — Prepare client packages
The upgrade from is highly recommended, specifically for the reduced endpoint footprint and the modernized Linux agent . While the core antivirus engine remains the gold standard, the move to 14.3 is essentially about future-proofing your environment for a hybrid-cloud world. It stabilizes many of the "experimental" lean features of 14.2 into a production-ready suite.
The upgrade process for the management server is an "over-install," meaning it preserves existing settings while updating the core application.
Ensure your Microsoft SQL Server version is compatible with SEP 14.3 (SQL Server 2016 SP2 or higher is typically required). Critical Pre-Upgrade Checklist Before running the installer, execute these tasks in order:
Before starting, ensure your environment is ready to prevent data loss or downtime: Back up the Database: Symantec Database Backup and Restore tool to create a fresh backup of your SEPM database. Check System Requirements:
Symantec Endpoint Protection Upgrade: Migrating from 14.2 to 14.3
Download the 14.3 package from the Broadcom TechDocs portal .
Windows Server 2012 / 2012 R2 / 2016 / 2019 / 2022. Desktop Clients: Windows 7 (SP1), 8.1, 10, and 11.
When the database upgrade completes successfully, click . Log in to the SEPM console using your standard administrator credentials to verify that your policies, groups, and clients have migrated intact. 4. Upgrading SEP Clients (Windows, Mac, Linux)
First, confirm that your SEPM server and client systems meet the requirements for version 14.3. The key requirements for the SEPM server are:
The wizard will prompt you to upgrade the database schema. Click .
From the SEPM home screen, click . Select New Package Deployment . Choose the 14.3 Windows, macOS, or Linux package.
Symantec Endpoint Protection Upgrade 14.2 To 14.3 -
Step 5 — Prepare client packages
The upgrade from is highly recommended, specifically for the reduced endpoint footprint and the modernized Linux agent . While the core antivirus engine remains the gold standard, the move to 14.3 is essentially about future-proofing your environment for a hybrid-cloud world. It stabilizes many of the "experimental" lean features of 14.2 into a production-ready suite.
The upgrade process for the management server is an "over-install," meaning it preserves existing settings while updating the core application.
Ensure your Microsoft SQL Server version is compatible with SEP 14.3 (SQL Server 2016 SP2 or higher is typically required). Critical Pre-Upgrade Checklist Before running the installer, execute these tasks in order: symantec endpoint protection upgrade 14.2 to 14.3
Before starting, ensure your environment is ready to prevent data loss or downtime: Back up the Database: Symantec Database Backup and Restore tool to create a fresh backup of your SEPM database. Check System Requirements:
Symantec Endpoint Protection Upgrade: Migrating from 14.2 to 14.3
Download the 14.3 package from the Broadcom TechDocs portal . Step 5 — Prepare client packages The upgrade
Windows Server 2012 / 2012 R2 / 2016 / 2019 / 2022. Desktop Clients: Windows 7 (SP1), 8.1, 10, and 11.
When the database upgrade completes successfully, click . Log in to the SEPM console using your standard administrator credentials to verify that your policies, groups, and clients have migrated intact. 4. Upgrading SEP Clients (Windows, Mac, Linux)
First, confirm that your SEPM server and client systems meet the requirements for version 14.3. The key requirements for the SEPM server are: The upgrade process for the management server is
The wizard will prompt you to upgrade the database schema. Click .
From the SEPM home screen, click . Select New Package Deployment . Choose the 14.3 Windows, macOS, or Linux package.