New features in FOS 7.6.4 may interest you

[AEK]

FortiOS 7.6.4 released on 2025-08-21.

I'm listing here some very interesting new features:

945633	You can now use both FortiSwitch network access control (NAC) and 802.1X authentication on the same switch port. After a device is successfully authenticated with 802.1X authentication, the NAC user policy checks if the device is assigned to a specific user group. If the device matches the NAC user policy, it is assigned to a specific VLAN.
1106711	The FortiSwitch controller now supports generalized Layer 3 switch configuration for hybrid L2/L3 networks. This includes Switched Virtual Interface (SVI), Routed Virtual Interface (RVI), Virtual Routing and Forwarding (VRF), DHCP Server (with minimal configuration for isolated L2 domains), and IPv4 static routes, enhancing network management capabilities.

1058743

Auto speed negotiation on the 10G Base-T interface now allows the 1G/10G copper ports on the FGT100xF to automatically handle both 1G and 10G speeds and duplex settings, eliminating the need for manual adjustments and enhancing the user experience.

1154475

Introducing support for FortiSandbox Inline scanning in Flow mode on FortiGate. This enhancement enables customers to utilize sandboxing alongside other Flow-mode features, such as IPS, to improve threat detection capabilities without switching to Proxy mode and to streamline security operations.

1141036

To enhance security and reduce vulnerabilities, FortiGate appliances that are no longer under a valid Firmware & General Updates (FMWR) license or have reached End of Support (EOS) will now automatically upgrade to the latest patch within their current minor version. This proactive measure ensures that all devices remain protected with the most up-to-date security features.

And many others...

Full details here:

https://docs.fortinet.com/document/fortigate/7.6.4/fortios-release-notes/743723