The presence of kvm in the filename highlights a shift in the homelab community. While VMWare ESXi has traditionally been the enterprise standard, many home labs and small businesses are moving to open-source hypervisors like .
The terms seem to relate to virtualization, a technology that allows multiple operating systems to run on a single physical machine, and possibly to a product from Fortinet, a company known for its cybersecurity solutions.
: Build 1254 is a stable point-in-time release often used to test compatibility before upgrading production hardware to the 7.2.x branch. Licensing Note
To understand why this specific build is sought after, we have to break down the technical nomenclature used by Fortinet: