Firmware Upgrade Priority: Stable vs. Latest

Zyxel_Lynn

Firmware Upgrade Priority Enhancement

Starting with uOS 1.39, Zyxel introduces a new firmware categorization system to give administrators better control over their update cycles. Users can now choose between Stable and Latest firmware types.

Firmware Type Definitions

• Stable (Default): Versions that have undergone extensive field testing and have no major reported issues.
• Latest: The most recently released firmware version, including the newest features and enhancements.

Operational Behavior

• Independent Management: Firmware type settings on the local Web GUI and Nebula Control Center (NCC) are independent and do not synchronize.

• Prevention of Downgrades: To maintain system stability, the firewall will not perform an auto-update if the current installed version is newer than the target firmware type (e.g., if the firewall is on "Latest" it will not automatically "downgrade" to a "Stable" version).

Administrators can manually check for updates and toggle between types under Firmware Management to see available versions based on current POM (Product Operations Management) decisions.