As of mid-2026, GFI still pushes antivirus and IDS signature updates to the 9.4 branch, but this is not guaranteed long-term. Monitor https://manuals.gfi.com/en/kerio/control/ for lifecycle announcements.
We tested Kerio Control 9.4.2 on a Dell PowerEdge T30 (Xeon E3-1225 v5, 8GB RAM, Intel I350-T2 NICs) with a symmetrical 1 Gbps fiber connection. kerio control 9.4.2
For site-to-site VPNs, IPsec IKEv2 is stable. Interoperability with Cisco ASA and pfSense has been confirmed by community testing. Kerio Control 9