Release Notes

Version 3.4.3

Release Date: August 11, 2026

Improvements/Updates

• Layer-2 switching feature set: Spanning Tree (STP/MSTP/MRP), management on a VLAN interface, SPAN/RSPAN port mirroring in Transparent mode, and duplication of outgoing traffic to two ports.

• Password policy: password strength/expiry and authorization, with expiry warning banners.

• New user roles: the "User" role is renamed Auditor and a new Operator role with alert-acknowledge permission is added.

• Silent Capture: background packet capture with day-grouped file browsing and a redesigned capture page.

• Central Management (OCM) improvements: enable/disable interfaces from CM, import/export of routing firewall rules, agent-token refresh lifecycle with CM-unreachable/token-expired warnings, automatic re-enrollment on 401.

• Improve log for external services (NTP and RADIUS)

• Improve IPSec:

  • Configurable MTU for network interfaces and IPsec tunnel interfaces.

  • OTA Gateway: select an IPsec VPN tunnel as egress path to the OT device

• Bug Fixes

• Upgrade from versions 3.2.x and 3.3.x to 3.4.x works as expected.

Version 3.4.2

Release Date: June 30, 2026

Improvements/Updates

• Command-Line Interface (CLI): A full SSH command-line interface for managing the device — System Settings, Time Settings, Network (IP Configuration and Port Mode), Firewall Rules (Routing & Transparent), Routing- and Transparent-mode settings, Learning Mode (Routing & Transparent), DoS Protection, ARP Protection, Management Access, DPI Profiles, and configuration/system backup export/import via USB.

• Deep Packet Inspection for VNC: VNC is now available as a DPI profile protocol, so VNC remote-desktop traffic can be inspected and controlled at the function level.

• Switching: New Layer 2 switching capabilities — VLAN-aware bridge, MAC Address Table management, and SPAN/RSPAN port mirroring.

• 8-Port Model: Support for up to three transparent pairs, plus load balancing in Routing mode.

• Port Controls: Enable or disable USB ports and individual Ethernet ports.

• RADIUS / TACACS+ Authentication: External authentication server support for administrator login.

• Read-Only User Role: A user account role with view-only access to firewall rules and configuration.

• Dashboard Customization: Customizable dashboard with new widgets — Alert by Protocol, Alert Over Time, Inbound & Outbound Monitor, and Rule Hit Count Monitor.

• Object Management in Firewall Learning Mode: Reuse named IP objects when reviewing and accepting learned policies.

• OPSWAT Central Management (OCM): System backup, enable/disable Ethernet ports, and log viewing are now available from OCM.

• Smaller firmware image: Reduced image size.

• Upgrade from versions 3.2.x and 3.3.x to 3.4.x works as expected.

Version 3.4.1

Release Date: May 29, 2026

Improvements/Updates

• Stronger Network Protection: ARP Protection, ARP Binding (routing + transparent), violation logging.

• Broader Hardware Support: MetaDefender Industrial Firewall 8-Port multi-revision installation.

• Manage Your Fleet from One Place**:**

  • Full OCM feature inventory (rules, DPI, NAT, MAC filter, VLANs, VRRP, OSPF/RIP, ARP, Object Management, External Services, etc.).

  • Apply Policies/Firmware to Many Devices at Once.

• Multi-gateway OTA support: devices can connect to multiple OTA Server.

• Support Dial-up IPSec, IPSec UI fixes.

• Fix minor bugs.

• Upgrade from versions 3.2.x and 3.3.x to 3.4.x works as expected.

Version 3.4.0

Release Date: March 31, 2026

Improvements/Updates

• Separate Layer 2 (L2) and Layer 3 (L3) rules for Transparent Mode

• ARP Protection

• Change System Rules to Management Access

• OCM Integration, including:

  • Dashboard

  • Alerts page

  • License activation

  • Port and IP configuration

  • Firewall rule management

  • Management access

• Fix existing bugs

• Upgrade from versions 3.2.x and 3.3.x to 3.4.0 works as expected.

Version 3.3.1

Release Date: February 6, 2026

Improvements/Updates

• Upgraded to a new web framework for improving UI/UX and maintainability

• Basic OCM Integration (On-Prem version):

  • Enroll

  • Health Status

  • Inventory