FGT_140D-v6-build0302-FORTINET.out.zip FortiGate 140D Firmware v6-build0302 Download and Release Notes
1. Introduction to FGT_140D-v6-build0302-FORTINET.out.zip This firmware package delivers FortiOS 6.4.15 for FortiGate 140D firewalls, released on March 15, 2025, as part of Fortinet’s Extended Security Updates (ESU) program for legacy devices. Designed for organizations maintaining older network infrastructure, it provides...

