For more technical details, you can view the Official Kerio Control 9.4 Release Notes on the GFI Support portal . Kerio Control 9.4 Release Notes
In the lifecycle of network software, stability is paramount. Updates like 9.4.2 are often kerio control 9.4.2
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. For more technical details, you can view the