: The specific build number of this firmware version.
FortiGate firmware follows semantic versioning: v7.4.7 indicates major release 7, feature release 4, patch release 7. Build number 2731 is an internal build identifier. fgtvm64kvmv747mbuild2731fortinetoutkvmqcow2 new
running on a Linux KVM (Kernel-based Virtual Machine) hypervisor. Specifically, this is FortiOS version 7.4.7, build 2731 Key Features of FortiOS 7.4.7 (Build 2731) : The specific build number of this firmware version
The new tag implies a clean deployment, not an upgrade. feature release 4