Symantec Advanced Threat Protection (ATP) software updates for improved performance, functionality, enhancements, or security for the appliance are available from Symantec under any of these circumstances:
A patch or upgrade release
A Symantec component or third-party library update
An operating system update
The appliance automatically checks for updates daily. Update availability appears in ATP Manager on the Settings > Appliances page. You can also configure an email to be sent when an update is available. If a software update is available, the system shows a yellow status of System Needs Attention; mousing over the message displays a pop-up message that an update is available.
The Update Software option may not appear until 24-48 hours after the update is made publically available.
You can update ATP in ATP Manager or using the CLI.
Each device must be updated separately. The management platform must be updated first, followed by the network scanners. When you update an all-in-one appliance or management platform, make sure that you back up the appliance first.
Updates require ATP to be taken offline. Never restart or shutdown the appliance during an update. The appliance restarts itself after the update.