The schema upgrade modifies your existing log files and client tables to support 14.3 features. or restart the server during this process, even if the progress bar appears to stall. Click Finish once the success screen appears. Phase 3: Upgrading the SEP Endpoints (Clients)

Locate the recovery.zip file, typically found in C:\Program Files (x86)\Symantec\Symantec Endpoint Protection Manager\Server Private Key Backup\ . Store this file on an external drive.

You have three options after the SEPM is on 14.3:

Key enhancements across the 14.3 line include:

Upgrading Symantec Endpoint Protection: A Step-by-Step Guide (14.2 to 14.3)

Following the Broadcom acquisition, the licensing portal and credentialing for updates can be a hurdle during the initial upgrade phase if your account isn't fully migrated. Final Verdict

14.3 acts as the bridge to Symantec’s cloud console. Even if you stay on-premises, the hooks for hybrid management are much more robust.

Before running any installers, you must prepare your environment to prevent data loss or system downtime. System Requirements